{"title":"Publications","description":"","products":[{"product_id":"grease-specification-fire-risk-management-kitchen-extraction","title":"TR19® Grease Specification For Fire Risk Management Of Grease Accumulation Within Kitchen Extraction Systems","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eTR19® Grease is the definitive specification for managing the fire risks associated with grease accumulation in commercial kitchen extraction systems.\u003c\/p\u003e\n\u003cp\u003eProduced in response to increasing requirements from insurers, property owners, and regulatory bodies, this stand-alone document defines industry best practice for the cleaning, inspection, and fire risk management of kitchen extract ventilation. It supports compliance with fire safety legislation, health and safety obligations, and insurance expectations for commercial premises.\u003c\/p\u003e\n\u003cp\u003eTR19® Grease is intended for use in new builds, system upgrades, and maintenance projects. It provides technical and procedural standards designed to protect buildings, occupants, and businesses from grease-related fire hazards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDefines industry best practice for inspection, cleaning, and risk management of kitchen extraction systems\u003c\/li\u003e\n\u003cli\u003eSupports compliance with health and safety regulations, insurance requirements, and fire safety standards\u003c\/li\u003e\n\u003cli\u003eApplicable across design, installation, maintenance, and operational stages\u003c\/li\u003e\n\u003cli\u003eEnables specifiers, consultants, contractors, and property owners to meet evolving safety and risk management standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAre you part of the UK’s Vent Hygiene Register (VHR)?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Vent Hygiene Register is the recognised scheme for demonstrating compliance, evidencing technical standards, and gaining business opportunities in the ventilation hygiene sector.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.thebesa.com\/vent-hygiene-register\/contractors\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eJoin The Vent Hygiene Register\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eLaunching March 3rd 2026, VHR are expanding the Register to cover TR 19 Air not just Grease. You can learn more \u0026amp; register your interest below.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.thebesa.com\/vhr-air\"\u003eLearn More\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePublished Date:\u003c\/strong\u003e 01\/08\/2020\u003cbr\u003e\u003cstrong\u003eNumber Of Pages:\u003c\/strong\u003e 42\u003cbr\u003e\u003cstrong\u003eISBN:\u003c\/strong\u003e 0-903783-29-0\u003cbr\u003e\u003ca href=\"http:\/\/online.pubhtml5.com\/lxie\/haoo\/\"\u003eClick Here For A Preview\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003e PDF Download \u003c\/strong\u003e\u003c\/p\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":43958516777126,"sku":"TR19GREASE","price":200.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/tr19-fire-risk-management-grease-accumulation.jpg?v=1743522223"},{"product_id":"first-steps-bim-competence","title":"First Steps To BIM Competence","description":"A Guide for Specialist Contractors\u003cbr\u003e\u003cbr\u003e\u003cp\u003eThis Guide focuses on the incarnation of \"BIM\" as Construction Engineering. For the Building Services community, and for the wider audience, it provides an informative narrative on the key principles of the BIM movement within the context of project delivery - with signposting to its role across the whole life cycle and, in the wider context.This Guide helps to set you on the right path and goes a long way to simplifying the language and the way into the subject.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePublished Date:  \u003c\/strong\u003e19\/10\/2017\u003cbr\u003e\u003cstrong\u003eNumber of Pages:  \u003c\/strong\u003e48\u003cbr\u003e\u003cstrong\u003eISBN:  \u003c\/strong\u003e978-0-9957600\u003cbr\u003e \u003ca href=\"http:\/\/online.pubhtml5.com\/lxie\/xmlg\/\"\u003eClick Here for a Preview\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003e  PDF Download \u003c\/strong\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":43958517039270,"sku":"BIM","price":40.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/first-steps-bim-competence-besa-publication.jpg?v=1743437397"},{"product_id":"specification-kitchen-ventilation-systems","title":"DW\/172 Specification For Kitchen Ventilation Systems","description":"\u003cp\u003e\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"TechArticle\",\n  \"headline\": \"DW\/172: Specification For Kitchen Ventilation Systems\",\n  \"author\": {\n    \"@type\": \"Organization\",\n    \"name\": \"Building Engineering Services Association (BESA)\",\n    \"url\": \"https:\/\/www.thebesa.com\"\n  },\n  \"publisher\": {\n    \"@type\": \"Organization\",\n    \"name\": \"BESA Publications\"\n  },\n  \"datePublished\": \"2018-10-01T00:00:00+00:00\",\n  \"dateModified\": \"2024-05-01T00:00:00+00:00\",\n  \"version\": \"Second Edition, updated May 2024\",\n  \"isbn\": \"0-903783-29-0\",\n  \"inLanguage\": \"en\",\n  \"url\": \"https:\/\/publications.thebesa.com\/products\/specification-kitchen-ventilation-systems\",\n  \"mainEntityOfPage\": {\n    \"@type\": \"WebPage\",\n    \"@id\": \"https:\/\/publications.thebesa.com\/products\/specification-kitchen-ventilation-systems\"\n  },\n  \"image\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/dw172-kitchen-ventilation-systems-besa-publication.jpg?v=1743437292\",\n  \"description\": \"DW\/172 is the definitive UK standard for the design, installation, and maintenance of commercial kitchen ventilation systems. Published by BESA, updated 2018 and 2024.\",\n  \"isAccessibleForFree\": false,\n  \"audience\": {\n    \"@type\": \"Audience\",\n    \"audienceType\": \"Construction and building services professionals\"\n  },\n  \"articleSection\": \"Kitchen Ventilation, Building Services, Commercial Catering Standards\",\n  \"keywords\": [\n    \"kitchen ventilation systems\",\n    \"commercial kitchen standards\",\n    \"BESA kitchen specification\",\n    \"DW\/172\"\n  ],\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"price\": \"500.00\",\n    \"priceCurrency\": \"GBP\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"url\": \"https:\/\/publications.thebesa.com\/products\/specification-kitchen-ventilation-systems\"\n  }\n}\n\u003c\/script\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"DW\/172: Specification For Kitchen Ventilation Systems\",\n  \"image\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/dw172-kitchen-ventilation-systems-besa-publication.jpg?v=1743437292\",\n  \"description\": \"DW\/172 is the definitive UK standard for the design, installation, and maintenance of commercial kitchen ventilation systems. Published by BESA.\",\n  \"sku\": \"DW172\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"BESA\"\n  },\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"price\": \"500.00\",\n    \"priceCurrency\": \"GBP\",\n    \"priceValidUntil\": \"2030-12-31\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"url\": \"https:\/\/publications.thebesa.com\/products\/specification-kitchen-ventilation-systems\",\n    \"hasMerchantReturnPolicy\": {\n      \"@type\": \"MerchantReturnPolicy\",\n      \"returnPolicyCategory\": \"https:\/\/schema.org\/MerchantReturnNotPermitted\",\n      \"applicableCountry\": \"GB\"\n    },\n    \"shippingDetails\": {\n      \"@type\": \"OfferShippingDetails\",\n      \"shippingDestination\": {\n        \"@type\": \"DefinedRegion\",\n        \"addressCountry\": \"GB\"\n      },\n      \"shippingRate\": {\n        \"@type\": \"MonetaryAmount\",\n        \"value\": \"0.00\",\n        \"currency\": \"GBP\"\n      },\n      \"deliveryTime\": {\n        \"@type\": \"ShippingDeliveryTime\",\n        \"handlingTime\": {\n          \"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        },\n        \"transitTime\": {\n          \"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        }\n      }\n    }\n  }\n}\n\u003c\/script\u003e\u003c\/p\u003e\n\n\n\u003cp\u003eDW\/172 is the definitive industry standard for designing, installing, and maintaining commercial kitchen ventilation systems. Published by the Building Engineering Services Association (BESA), it reflects current legislation, modern cooking techniques, and advancements in catering equipment design.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBackground\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIntroduced initially as DW\/171 in 1999 and revised to DW\/172 in 2005, this specification has sold over 6,000 copies and is widely recognised across the UK and internationally as the authoritative reference for kitchen ventilation design.\u003c\/p\u003e\n\n\u003cp\u003eThe Second Edition (2018), updated by BESA’s Ventilation Group, incorporates major technical revisions to meet evolving industry requirements.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Updates In The 2018 Edition\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eExpanded appliance coefficient schedules for improved airflow calculation.\u003c\/li\u003e\n\u003cli\u003eRevised grease separation methods to enhance safety and performance.\u003c\/li\u003e\n\u003cli\u003eModernised lighting standards for kitchen environments.\u003c\/li\u003e\n\u003cli\u003eNew sections cover solid fuel appliances, demand-controlled kitchen ventilation (DCKV), and recirculation systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eAddendum May 2024:\u003c\/strong\u003e See Appendix D for updated guidance on fire-resisting and smoke-control ductwork (Section 19.1).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWho Should Use This Specification\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eEssential for building services engineers, kitchen designers, mechanical contractors, and professionals involved in the planning, design, installation, or maintenance of commercial kitchen ventilation systems.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePublished Date:\u003c\/strong\u003e 1 October 2018\u003cbr\u003e\n\u003cstrong\u003eNumber of Pages:\u003c\/strong\u003e 88\u003cbr\u003e\n\u003cstrong\u003eISBN:\u003c\/strong\u003e 0-903783-29-0\u003cbr\u003e\n\u003cstrong\u003ePublisher:\u003c\/strong\u003e Building Engineering Services Association (BESA)\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"http:\/\/online.pubhtml5.com\/vbpm\/epsp\/\"\u003eClick Here For A Preview\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003ePDF Download\u003c\/strong\u003e\u003c\/p\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":43958517334182,"sku":"DW 172","price":500.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/dw172-kitchen-ventilation-systems-besa-publication.jpg?v=1743437292"},{"product_id":"district-heating-cooling-design-guide","title":"DH\u0026C District Heating \u0026 Cooling Early Design Building Connections Guide","description":"Definitive processes for early engagement to facilitate District Heating Networks\u003cbr\u003e\u003cbr\u003e\u003cp\u003eTo be used by design and construction teams in advance of the appointment of a district energy (DE) supplier, this guide sets out the minimum requirements that should be allowed for in the design and construction of a building to facilitate the connection to a district heating or cooling (generally a district energy (DE)) network. It will help to avoid the difficulties and costs associated with late stage engagement with a DE supplier, often at the end of planning negotiations and well after the start of construction.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePublished Date:  \u003c\/strong\u003e01\/01\/2017\u003cbr\u003e\u003cstrong\u003eNumber of Pages:  \u003c\/strong\u003e10\u003cbr\u003e\u003cstrong\u003eISBN:  \u003c\/strong\u003e978-0-9957600-1-1\u003cbr\u003e \u003ca href=\"http:\/\/online.pubhtml5.com\/vbpm\/ezur\/\"\u003eClick Here for a Preview\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003e  PDF Download \u003c\/strong\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":43958517366950,"sku":"DH\u0026C","price":70.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/district-heating-cooling-besa-publication.jpg?v=1743420699"},{"product_id":"specification-sheet-metal-ductwork","title":"DW\/144 Specification For Sheet Metal Ductwork","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"TechArticle\",\n      \"headline\": \"DW\/144 Specification For Sheet Metal Ductwork\",\n      \"author\": {\n        \"@type\": \"Organization\",\n        \"name\": \"BESA\",\n        \"url\": \"https:\/\/www.thebesa.com\"\n      },\n      \"publisher\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Building Engineering Services Association\",\n        \"url\": \"https:\/\/www.thebesa.com\"\n      },\n      \"datePublished\": \"2016-01-01T00:00:00+00:00\",\n      \"dateModified\": \"2024-04-01T00:00:00+00:00\",\n      \"version\": \"Third Edition with April 2024 Addendum\",\n      \"isbn\": \"978-0-903783-64-4\",\n      \"inLanguage\": \"en\",\n      \"url\": \"https:\/\/publications.thebesa.com\/products\/specification-sheet-metal-ductwork\",\n      \"mainEntityOfPage\": {\n        \"@type\": \"WebPage\",\n        \"@id\": \"https:\/\/publications.thebesa.com\/products\/specification-sheet-metal-ductwork\"\n      },\n      \"image\": \"https:\/\/publications.thebesa.com\/cdn\/shop\/files\/dw144-cover.jpg\",\n      \"description\": \"DW\/144 defines the technical standards for the design, manufacture, and installation of sheet metal ductwork in building services. It sets out requirements for low, medium and high pressure air systems, aligned with current BS, BS EN ISO and regulatory standards.\",\n      \"isAccessibleForFree\": false,\n      \"audience\": {\n        \"@type\": \"Audience\",\n        \"audienceType\": \"HVAC system designers, ductwork contractors, mechanical consultants, ventilation engineers, and project specifiers\"\n      },\n      \"articleSection\": \"HVAC, Ductwork Standards, Building Services Engineering\",\n      \"keywords\": [\n  \"DW144\",\n  \"sheet metal ductwork\",\n  \"ductwork installation standards\",\n  \"HVAC ductwork specification\",\n  \"building services duct standards\",\n  \"BS EN HVAC standards\",\n  \"air leakage testing\",\n  \"ventilation duct fabrication\",\n  \"ductwork construction standards\"\n      ],\n      \"offers\": {\n        \"@type\": \"Offer\",\n        \"price\": \"500.00\",\n        \"priceCurrency\": \"GBP\",\n        \"availability\": \"https:\/\/schema.org\/InStock\",\n        \"url\": \"https:\/\/publications.thebesa.com\/products\/specification-sheet-metal-ductwork\"\n      }\n    },\n    {\n      \"@type\": \"Product\",\n      \"name\": \"DW\/144: Specification for Sheet Metal Ductwork\",\n      \"image\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/dw144-sheet-metal-ductwork-besa-publication.jpg\",\n      \"description\": \"DW\/144 provides the technical requirements for the design, manufacture and installation of sheet metal ductwork for air systems. Aligned with BS, BS EN ISO standards and UK regulations.\",\n      \"sku\": \"DW144\",\n      \"brand\": {\n        \"@type\": \"Brand\",\n        \"name\": \"BESA\"\n      },\n      \"offers\": {\n        \"@type\": \"Offer\",\n        \"price\": \"500.00\",\n        \"priceCurrency\": \"GBP\",\n        \"priceValidUntil\": \"2030-12-31\",\n        \"availability\": \"https:\/\/schema.org\/InStock\",\n        \"url\": \"https:\/\/publications.thebesa.com\/products\/specification-sheet-metal-ductwork\",\n        \"shippingDetails\": {\n          \"@type\": \"OfferShippingDetails\",\n          \"shippingDestination\": {\n            \"@type\": \"DefinedRegion\",\n            \"addressCountry\": \"GB\"\n          },\n          \"shippingRate\": {\n            \"@type\": \"MonetaryAmount\",\n            \"value\": \"0.00\",\n            \"currency\": \"GBP\"\n          },\n          \"deliveryTime\": {\n            \"@type\": \"ShippingDeliveryTime\",\n            \"handlingTime\": {\n              \"@type\": \"QuantitativeValue\",\n              \"minValue\": 0,\n              \"maxValue\": 0,\n              \"unitCode\": \"d\"\n            },\n            \"transitTime\": {\n              \"@type\": \"QuantitativeValue\",\n              \"minValue\": 0,\n              \"maxValue\": 0,\n              \"unitCode\": \"d\"\n            }\n          }\n        }\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\n\u003cp\u003eDW\/144 is the recognised industry standard for the design, manufacture, and installation of sheet metal ductwork used in building services engineering. It defines the technical requirements for low, medium, and high pressure\/velocity air systems and provides a consistent basis for specifying, fabricating, installing, and testing ductwork.\u003c\/p\u003e\n\n\u003cp\u003eAligned with the latest BS, BS EN ISO, and other relevant standards and regulations, DW\/144 supports project teams in achieving high standards of quality, efficiency, and compliance.\u003c\/p\u003e\n\n\u003cp\u003eThe specification is intended for use by system designers, contractors, manufacturers, and clients who require clear, standardised technical guidance for delivering ventilation systems. It sets out both mandatory and recommended practices, reflecting industry developments in materials, construction methods, and performance expectations.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Topics Covered Include:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eDuctwork application and system classification\u003c\/li\u003e\n\u003cli\u003eApproved materials and finishes\u003c\/li\u003e\n\u003cli\u003eAir leakage limits and performance classes\u003c\/li\u003e\n\u003cli\u003eConstruction standards for rectangular, circular, and flat oval ductwork\u003c\/li\u003e\n\u003cli\u003eHangers, supports, and bracketry\u003c\/li\u003e\n\u003cli\u003eIntegration of smoke and fire dampers\u003c\/li\u003e\n\u003cli\u003eExternal ductwork weather protection\u003c\/li\u003e\n\u003cli\u003eInternal duct linings and thermal insulation\u003c\/li\u003e\n\u003cli\u003eSpecification for air terminal units and accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eClear reference tables throughout the document provide ready access to sizes, thicknesses, leakage limits, and test requirements, supporting both design and procurement.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eApril 2024 Addendum:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis edition incorporates updates aligned with the revised TR19® Air: Specification for Internal Cleanliness and Hygiene Management of Ventilation Systems, published in 2024.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePublished Date:\u003c\/strong\u003e 01\/01\/2016\u003cbr\u003e\u003cstrong\u003eNumber of Pages: \u003c\/strong\u003e180\u003cbr\u003e\u003cstrong\u003eISBN:\u003c\/strong\u003e 978-0-903783-64-4\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/online.pubhtml5.com\/vbpm\/fxqb\/\"\u003eClick Here for a Preview\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003e PDF Download \u003c\/strong\u003e\u003c\/p\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":43958517399718,"sku":"DW\/144","price":500.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/dw144-sheet-metal-ductwork-besa-publication.jpg?v=1743437060"},{"product_id":"installation-rainwater-harvesting","title":"TR 36 Installation Of Rainwater Harvesting In Non Residential Buildings","description":"\u003cp\u003eAdvice\u003cstrong\u003e \u003c\/strong\u003eand practical considerations for the harvesting and recycling of rainwater - a serious consideration for all new building projects.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eHarvesting rainwater can help to overcome both problems of drought and floods by providing a constant supply of water during dry conditions and collecting excess rainfall by relieving pressure on local drains that leads to flooding. Benefits to harvesting rainwater are reductions in mains water consumption, reductions in water bills and reductions in your carbon footprint.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePublished Date: \u003c\/strong\u003e01\/01\/2010\u003cbr\u003e\u003cstrong\u003eNumber of Pages: \u003c\/strong\u003e24\u003cbr\u003e\u003cstrong\u003eISBN: \u003c\/strong\u003e978-0-903783-62-0\u003cbr\u003e\u003ca href=\"http:\/\/online.pubhtml5.com\/vbpm\/itvy\/\"\u003eClick Here for a Preview\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003e PDF Download \u003c\/strong\u003e\u003c\/p\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":43958517498022,"sku":"TR\/36","price":50.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/tr36-installation-rainwater-harvesting-besa-publication.jpg?v=1743522940"},{"product_id":"low-energy-ventilation-residential-buildings","title":"TR\/35 Low Energy Ventilation For Residential Buildings","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"TechArticle\",\n      \"headline\": \"TR\/35 Low Energy Ventilation For Residential Buildings\",\n      \"author\": {\n        \"@type\": \"Organization\",\n        \"name\": \"BESA\",\n        \"url\": \"https:\/\/www.thebesa.com\"\n      },\n      \"publisher\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Building Engineering Services Association\",\n        \"url\": \"https:\/\/www.thebesa.com\"\n      },\n      \"datePublished\": \"2013-01-01T00:00:00+00:00\",\n      \"dateModified\": \"2013-01-01T00:00:00+00:00\",\n      \"version\": \"First Edition (2013)\",\n      \"inLanguage\": \"en\",\n      \"url\": \"https:\/\/publications.thebesa.com\/products\/low-energy-ventilation-residential-buildings\",\n      \"mainEntityOfPage\": {\n        \"@type\": \"WebPage\",\n        \"@id\": \"https:\/\/publications.thebesa.com\/products\/low-energy-ventilation-residential-buildings\"\n      },\n      \"image\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/tr35-low-energy-ventilation-residential-buildings-besa-publication.jpg\",\n      \"description\": \"TR\/35 provides installation guidance for low-energy residential ventilation systems, including MEV, MVHR, PIV, PSV, and IMEV. 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It includes system selection, ductwork planning, and compliance advice aligned with Building Regulations Parts F and L.\",\n      \"sku\": \"TR35\",\n      \"brand\": {\n        \"@type\": \"Brand\",\n        \"name\": \"BESA\"\n      },\n      \"offers\": {\n        \"@type\": \"Offer\",\n        \"price\": \"70.00\",\n        \"priceCurrency\": \"GBP\",\n        \"priceValidUntil\": \"2030-12-31\",\n        \"availability\": \"https:\/\/schema.org\/InStock\",\n        \"url\": \"https:\/\/publications.thebesa.com\/products\/tr35-low-energy-ventilation-residential-buildings\",\n        \"shippingDetails\": {\n          \"@type\": \"OfferShippingDetails\",\n          \"shippingDestination\": {\n            \"@type\": \"DefinedRegion\",\n            \"addressCountry\": \"GB\"\n          },\n          \"shippingRate\": {\n            \"@type\": \"MonetaryAmount\",\n            \"value\": \"0.00\",\n            \"currency\": \"GBP\"\n          },\n          \"deliveryTime\": {\n            \"@type\": \"ShippingDeliveryTime\",\n            \"handlingTime\": {\n              \"@type\": \"QuantitativeValue\",\n              \"minValue\": 0,\n              \"maxValue\": 0,\n              \"unitCode\": \"d\"\n            },\n            \"transitTime\": {\n              \"@type\": \"QuantitativeValue\",\n              \"minValue\": 0,\n              \"maxValue\": 0,\n              \"unitCode\": \"d\"\n            }\n          }\n        }\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\n\n\u003cp\u003eAs homes and residential buildings become more airtight for energy efficiency, delivering effective ventilation is essential to ensure good indoor air quality and occupant wellbeing. 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It outlines best practices for hydraulic and pneumatic testing across hot and cold water, steam, gas, and compressed air systems, aligned with current safety and environmental standards.\",\n      \"isAccessibleForFree\": false,\n      \"audience\": {\n        \"@type\": \"Audience\",\n        \"audienceType\": \"Designers, contractors, commissioning engineers, building services consultants\"\n      },\n      \"articleSection\": \"Pipework Testing, Hydraulic Testing, Pneumatic Testing, Building Services Engineering\",\n      \"keywords\": [\n  \"TR6\",\n  \"site pressure testing\",\n  \"pipework testing\",\n  \"hydraulic pressure testing\",\n  \"pneumatic testing procedures\",\n  \"building services pipework\",\n  \"pressure test safety\",\n  \"commissioning pipework\"\n      ]\n    },\n    {\n      \"@type\": \"Product\",\n      \"name\": \"TR\/6 Site Pressure Testing Of Pipework: Guide To Good Practice\",\n      \"image\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/tr6-site-pressure-testing-pipework-besa-publication.jpg\",\n      \"description\": \"TR\/6 defines best practices for the site pressure testing of pipework in building services applications. Includes hydraulic and pneumatic test procedures, safety guidance, and certification templates for engineers and contractors.\",\n      \"sku\": \"TR6\",\n      \"brand\": {\n        \"@type\": \"Brand\",\n        \"name\": \"BESA\"\n      },\n      \"offers\": {\n        \"@type\": \"Offer\",\n        \"price\": \"60.00\",\n        \"priceCurrency\": \"GBP\",\n        \"priceValidUntil\": \"2030-12-31\",\n        \"availability\": \"https:\/\/schema.org\/InStock\",\n        \"url\": \"https:\/\/publications.thebesa.com\/products\/site-pressure-testing-pipework\",\n        \"shippingDetails\": {\n          \"@type\": \"OfferShippingDetails\",\n          \"shippingDestination\": {\n            \"@type\": \"DefinedRegion\",\n            \"addressCountry\": \"GB\"\n          },\n          \"shippingRate\": {\n            \"@type\": \"MonetaryAmount\",\n            \"value\": \"0.00\",\n            \"currency\": \"GBP\"\n          },\n          \"deliveryTime\": {\n            \"@type\": \"ShippingDeliveryTime\",\n            \"handlingTime\": {\n              \"@type\": \"QuantitativeValue\",\n              \"minValue\": 0,\n              \"maxValue\": 0,\n              \"unitCode\": \"d\"\n            },\n            \"transitTime\": {\n              \"@type\": \"QuantitativeValue\",\n              \"minValue\": 0,\n              \"maxValue\": 0,\n              \"unitCode\": \"d\"\n            }\n          }\n        }\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\n\u003cp\u003eTR\/6 provides comprehensive UK industry guidance for the safe and effective site pressure testing of pipework systems across a wide range of building engineering applications. It outlines best practice procedures for hydraulic and pneumatic testing, aligned with the latest technical standards, health and safety legislation, and environmental regulations.\u003c\/p\u003e\n\u003cp\u003eThis third edition reflects current industry practices, including the rise of off-site fabrication, and incorporates specific guidance for plastic, composite, and press-fit piping systems. It also sets out clear protocols for risk management, test certification, exclusion zones, and system commissioning.\u003c\/p\u003e\n\u003cp\u003eTR\/6 is applicable to a variety of systems including hot and cold water, heating, chilled water, steam, condenser water, fuel oil, gas pipework, sprinkler systems, and compressed air networks. It is intended for designers, contractors, commissioning engineers, and building services consultants responsible for ensuring safe and compliant pressure testing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDetailed procedures for hydraulic and pneumatic pressure testing\u003c\/li\u003e\n\u003cli\u003eSpecific considerations for plastic, composite, and press-fit systems\u003c\/li\u003e\n\u003cli\u003eTemplates for pressure test certificates and record-keeping\u003c\/li\u003e\n\u003cli\u003eCompliance guidance for Pressure Systems Safety Regulations and COSHH\u003c\/li\u003e\n\u003cli\u003eUpdated flowcharts for test procedure selection and risk management\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Note:\u003c\/strong\u003e\u003cbr\u003eThis publication is \u003cspan style=\"color: rgb(255, 42, 0);\"\u003ecurrently under review\u003c\/span\u003e for a future update.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePublished Date:\u003c\/strong\u003e 01\/03\/2017\u003cbr\u003e\u003cstrong\u003eNumber Of Pages:\u003c\/strong\u003e 28\u003cbr\u003e\u003cstrong\u003eISBN:\u003c\/strong\u003e 978-0-9957600-9-7\u003cbr\u003e\u003ca href=\"http:\/\/online.pubhtml5.com\/vbpm\/rxbn\/\"\u003eClick Here For A Preview\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003ePDF Download \u003c\/strong\u003e\u003c\/p\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":43958517924006,"sku":"TR\/6","price":60.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/tr6-site-pressure-testing-pipework-besa-publication.jpg?v=1743508367"},{"product_id":"welding-carbon-steel-pipework","title":"TR 5 Welding Of Carbon Steel Pipework","description":"The standard for the welding of carbon steel pipework.\u003cbr\u003e\u003cbr\u003e\u003cp\u003eThis code of practice sets the standard for the welding of carbon steel pipework and focusses on the welding of services for water, steam and gas pipework at pressures up to and including 17.0 bar and\/or temperatures from -20?C up to and including 220?C.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"redCaps\"\u003eCURRENTLY under review\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePublished Date:  \u003c\/strong\u003e01\/01\/2003\u003cbr\u003e\u003cstrong\u003eNumber of Pages:  \u003c\/strong\u003e24\u003cbr\u003e\u003cstrong\u003eISBN:  \u003c\/strong\u003e0-903783-50-9\u003cbr\u003e \u003ca href=\"http:\/\/online.pubhtml5.com\/vbpm\/tjvg\/\"\u003eClick Here for a Preview\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003e  PDF Download \u003c\/strong\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":43958517956774,"sku":"TR5","price":70.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/tr5-welding-carbon-steel-pipework-besa-compilation.jpg?v=1743522541"},{"product_id":"installation-biofuel-heating","title":"TR 38: Installation Of Biofuel Heating","description":"Knowledge of the current developments and requirements when considering the use of biomass technology\u003cbr\u003e\u003cbr\u003e\u003cp\u003eThis is essential information about the requirements in the use of biomass fuels, exploring how their application could help meet emissions targets. It assists building services engineers when specifying biofuel equipment packages as part of a building's heating system.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePublished Date:  \u003c\/strong\u003e01\/01\/2008\u003cbr\u003e\u003cstrong\u003eNumber of Pages:  \u003c\/strong\u003e34\u003cbr\u003e\u003cstrong\u003eISBN:  \u003c\/strong\u003e0-903783-60-6\u003cbr\u003e \u003ca href=\"http:\/\/online.pubhtml5.com\/vbpm\/udlo\/\"\u003eClick Here for a Preview\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003e  PDF Download \u003c\/strong\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":43958517989542,"sku":"TR\/38","price":50.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/tr-38-installation-biofuel-heating.jpg?v=1743523365"},{"product_id":"design-specification-dx-packaged-air-conditioning","title":"RAC80: Design Specification For DX Packaged Air Conditioning Equipment In Buildings","description":"Designed as an industry design manual for engineers, for the application of DX air conditioning and heat pump equipment\u003cbr\u003e\u003cbr\u003e\u003cp\u003eThe industry specification, RAC 80 updates existing engineers on the latest legislation, and gives new engineers everything they need to know in one publication. Featuring the latest additions to the refrigerant market, the guide also includes up to date technologies and best practice information.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePublished Date:  \u003c\/strong\u003e01\/01\/2017\u003cbr\u003e\u003cstrong\u003eNumber of Pages:  \u003c\/strong\u003e124\u003cbr\u003e\u003cstrong\u003eISBN:  \u003c\/strong\u003e978-0-9957600-0-4\u003cbr\u003e \u003ca href=\"http:\/\/online.pubhtml5.com\/vbpm\/ulup\/\"\u003eClick Here for a Preview\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003e  PDF Download \u003c\/strong\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":43958518022310,"sku":"RAC\/80","price":200.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/rac80-specification-dx-air-conditioning-heat-pump-equipment-besa.jpg?v=1743505211"},{"product_id":"specification-plastics-ductwork","title":"DW\/154 Specification For Plastics Ductwork","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"TechArticle\",\n      \"headline\": \"DW\/154 Specification For Plastics Ductwork\",\n      \"author\": {\n        \"@type\": \"Organization\",\n        \"name\": \"BESA\",\n        \"url\": \"https:\/\/www.thebesa.com\"\n      },\n      \"publisher\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Building Engineering Services Association\",\n        \"url\": \"https:\/\/www.thebesa.com\"\n      },\n      \"datePublished\": \"2000-01-01T00:00:00+00:00\",\n      \"dateModified\": \"2000-01-01T00:00:00+00:00\",\n      \"version\": \"First Edition (2000)\",\n      \"inLanguage\": \"en\",\n      \"url\": \"https:\/\/publications.thebesa.com\/products\/specification-plastics-ductwork\",\n      \"mainEntityOfPage\": {\n        \"@type\": \"WebPage\",\n        \"@id\": \"https:\/\/publications.thebesa.com\/products\/specification-plastics-ductwork\"\n      },\n      \"image\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/dw154-specification-plastics-ductwork-besa-publication.jpg\",\n      \"description\": \"DW\/154 defines the technical standards for the design, manufacture, and installation of plastics ductwork systems. It provides detailed guidance on ductwork materials, fabrication methods, jointing techniques, leakage classification, supports, fire protection, and installation best practices for rectangular and circular systems.\",\n      \"isAccessibleForFree\": false,\n      \"audience\": {\n        \"@type\": \"Audience\",\n        \"audienceType\": \"HVAC designers, ductwork contractors, building services consultants, fume extraction specialists\"\n      },\n      \"articleSection\": \"Plastics Ductwork, HVAC Standards, Building Services Engineering\",\n      \"keywords\": [\n        \"DW154\",\n        \"plastics ductwork specification\",\n        \"UPVC ducting\",\n        \"GRP reinforced ductwork\",\n        \"ductwork air leakage\",\n        \"plastic ventilation systems\",\n        \"building services plastics ducting\"\n      ]\n    },\n    {\n      \"@type\": \"Product\",\n      \"name\": \"DW\/154 Specification For Plastics Ductwork\",\n      \"image\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/dw154-specification-plastics-ductwork-besa-publication.jpg\",\n      \"description\": \"DW\/154 sets industry standards for the design, manufacture and installation of plastics ductwork systems, including materials, jointing methods, air leakage performance and construction requirements, aligned with DW\/144 structure for ease of application.\",\n      \"sku\": \"DW154\",\n      \"brand\": {\n        \"@type\": \"Brand\",\n        \"name\": \"BESA\"\n      },\n      \"offers\": {\n        \"@type\": \"Offer\",\n        \"price\": \"60.00\",\n        \"priceCurrency\": \"GBP\",\n        \"priceValidUntil\": \"2030-12-31\",\n        \"availability\": \"https:\/\/schema.org\/InStock\",\n        \"url\": \"https:\/\/publications.thebesa.com\/products\/specification-plastics-ductwork\",\n        \"shippingDetails\": {\n          \"@type\": \"OfferShippingDetails\",\n          \"shippingDestination\": {\n            \"@type\": \"DefinedRegion\",\n            \"addressCountry\": \"GB\"\n          },\n          \"shippingRate\": {\n            \"@type\": \"MonetaryAmount\",\n            \"value\": \"0.00\",\n            \"currency\": \"GBP\"\n          },\n          \"deliveryTime\": {\n            \"@type\": \"ShippingDeliveryTime\",\n            \"handlingTime\": {\n              \"@type\": \"QuantitativeValue\",\n              \"minValue\": 0,\n              \"maxValue\": 0,\n              \"unitCode\": \"d\"\n            },\n            \"transitTime\": {\n              \"@type\": \"QuantitativeValue\",\n              \"minValue\": 0,\n              \"maxValue\": 0,\n              \"unitCode\": \"d\"\n            }\n          }\n        }\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\n\u003cp\u003eDW\/154 defines the technical standards for the manufacture and installation of rectangular and circular plastics ductwork systems in building services engineering.\u003c\/p\u003e\n\u003cp\u003eReflecting advances in plastics technology, construction practices, and European standards alignment, DW\/154 adopts the familiar layout and terminology of DW\/144 to simplify specification, fabrication, and installation across the industry.\u003c\/p\u003e\n\u003cp\u003eIt provides comprehensive guidance on material selection, fabrication methods, air leakage classification, jointing techniques, hangers and supports, fire protection measures, thermal insulation, and air system performance requirements. The specification includes detailed technical tables, sample construction drawings, and best practice recommendations for systems installed in standard, external, and hostile environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Note:\u003c\/strong\u003e\u003cbr\u003eThis specification is \u003cspan style=\"color: rgb(255, 42, 0);\"\u003ecurrently under review\u003c\/span\u003e for a future update.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStandards for plastics ductwork design, materials, fabrication, and installation\u003c\/li\u003e\n\u003cli\u003eDefines pressure classes, allowable leakage rates, and testing procedures\u003c\/li\u003e\n\u003cli\u003eGuidance for fume extraction systems, external exposure, and fire protection\u003c\/li\u003e\n\u003cli\u003eIncludes sample drawings, fabrication tables, and compliance templates\u003c\/li\u003e\n\u003cli\u003eAligned with DW\/144 structure for consistent reference across specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePublished Date:\u003c\/strong\u003e 01\/01\/2000\u003cbr\u003e\u003cstrong\u003eNumber Of Pages:\u003c\/strong\u003e 56\u003cbr\u003e\u003cstrong\u003eISBN:\u003c\/strong\u003e 0-903783-31-2\u003cbr\u003e\u003ca href=\"http:\/\/pubhtml5.com\/vbpm\/sykb\"\u003eClick Here for a Preview\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003ePDF Download \u003c\/strong\u003e\u003c\/p\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":43958518120614,"sku":"DW154","price":60.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/dw154-specification-plastics-ductwork-besa-publication.jpg?v=1743437184"},{"product_id":"offsite-guide-building-engineering-sector","title":"TR39 An Offsite Guide For The Building And Engineering Sector","description":"This guide is intended to provide practical support for the effective use of Offsite Construction methods focused on Building Engineering Services within the built environment.\u003cbr\u003e\u003cbr\u003e\n\u003cp align=\"LEFT\"\u003eThis guidance provides a practical overview of offsite construction, focusing on the information needs of building engineering services contractors working on projects involving offsite manufacture. It aims to place the installation requirements in the context of the overall construction process and enable effective delivery of an efficiently functioning system and building to the client.\u003c\/p\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePublished Date: \u003c\/strong\u003e01\/10\/2015\u003cbr\u003e\u003cstrong\u003eNumber of Pages: \u003c\/strong\u003e146\u003cbr\u003e \u003ca href=\"http:\/\/pubhtml5.com\/vbpm\/ttvb\/\"\u003eClick Here for a Preview\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003e PDF Download \u003c\/strong\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":43958518153382,"sku":"TR 39","price":50.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/tr39-offsite-guide-building-engineering-besa-publication.jpg?v=1743523535"},{"product_id":"water-management-plan-guide-good-practice","title":"TR60 Water Management Plan: A Guide To Good Practice","description":"This Guide to Good Practice covers the design and implementation of a Water Management Plan for commercial\/non-domestic premises and facilities wherever employees and the public are potentially at risk.\u003cbr\u003e\u003cbr\u003e\u003cp\u003eWater damage to buildings is a significant risk especially during construction and maintenance operations. Some larger consequences of a leak (Fig 1) can include impacts such as financial loss, contractual disputes, lost customer relationships and discontinued insurance cover. This Water Management Plan should be used as a guide for contractors involved in installation, commissioning and operation of water systems of all types in buildings, to demonstrate the key requirements to insurers that mitigate risk.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePublished Date:  \u003c\/strong\u003e21\/09\/2021\u003cbr\u003e\u003cstrong\u003eNumber of Pages:  \u003c\/strong\u003e23\u003cbr\u003e\u003cstrong\u003eISBN:  \u003c\/strong\u003e978-0-9957600-6-6\u003cbr\u003e \u003ca href=\"https:\/\/online.pubhtml5.com\/lxie\/enuz\/\"\u003eClick Here for a Preview\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003e  PDF Download \u003c\/strong\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":43958518186150,"sku":"TR60","price":60.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/tr60-water-management-plan.jpg?v=1743523424"},{"product_id":"local-exhaust-ventilation-guide-good-practice","title":"TR40 Local Exhaust Ventilation: A Guide to Good Practice","description":"\u003cp\u003e\u003cstrong\u003eUpdated April 2026 | Includes TR40 Online Awareness Training\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe BESA TR40 Guide to Good Practice for Local Exhaust Ventilation has been comprehensively updated for 2026 and now includes access to the new \u003ca href=\"https:\/\/besa.academy\/totara\/dashboard\/index.php?id=2\" target=\"_blank\" title=\"TR40 Online Awareness Course\" rel=\"noopener\"\u003eBESA TR40 Online Awareness Course\u003c\/a\u003e. Every full-price purchase includes two complimentary course places.\u003c\/p\u003e\n\u003cp\u003eTR40 is a practical reference for all involved in designing, installing, commissioning, maintaining, or testing LEV systems. It offers employers and duty holders clear guidance on specifying, maintaining, and evidencing effective control.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBackground\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLocal exhaust ventilation is a widely used engineering control for reducing exposure to airborne hazardous substances in the workplace. Under the Health and Safety at Work etc. Act 1974 and the Control of Substances Hazardous to Health Regulations, employers must prevent exposure where reasonably practicable, or adequately control it where that is not possible. In many cases, LEV is a key part of achieving that control.\u003c\/p\u003e\n\u003cp\u003eTR40 provides a structured framework for managing LEV throughout its full lifecycle. It addresses strategic definition, design, specification, installation, commissioning, operation, maintenance, Thorough Examination and Test, and end-of-life decommissioning. TR40 also defines roles, responsibilities, and competency requirements, which support the wider HSE guidance in HSG258.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's New In The 2026 Update?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd-to-end LEV lifecycle coverage\u003c\/strong\u003e\u003cbr\u003eClear requirements for LEV projects from concept and design, through installation and commissioning, to operation, review, and end-of-life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAligned with the RIBA Plan of Work\u003c\/strong\u003e\u003cbr\u003eReconfigured to follow the eight RIBA stages, providing a structured framework that defines tasks, responsibilities, and decision-making throughout the project lifecycle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew end-of-life stage\u003c\/strong\u003e\u003cbr\u003eAn additional stage that addresses dismantling and disposal, completing the circular lifecycle of LEV systems and supporting responsible asset management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced inspection, testing, and competence guidance\u003c\/strong\u003e\u003cbr\u003eExpanded detail on ongoing inspection and testing, with stronger emphasis on competency and compliance requirements for all involved.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpdated supporting documentation\u003c\/strong\u003e\u003cbr\u003eRevised example templates and forms included in the appendices, suitable for direct use or as best-practice guidance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTR40 continues to deliver simple, accessible, and relevant advice to help you ensure LEV systems remain effective, compliant, and fit for purpose throughout their entire working life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded With This Purchase\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTo help you understand the updated guidance, every full-price purchase of TR40 includes two complimentary places on the new BESA TR40 Online Awareness Course, which you access through BESA Academy. We will email your discount code shortly after purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWho Should Use This Guide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEssential for occupational hygienists, health and safety professionals, LEV designers, commissioning engineers, TExT assessors, mechanical and building services engineers, specialist LEV contractors, facilities managers, estates teams, and employer-appointed responsible persons. Also highly relevant to procurement leads, project managers, and anyone responsible for demonstrating compliance with COSHH and maintaining effective control of airborne hazardous substances in the workplace.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Topics Covered Include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRoles and responsibilities across the full LEV process, from employer to TExT assessor\u003c\/li\u003e\n\u003cli\u003eCompetency requirements for designers, suppliers, commissioning engineers, maintenance engineers, and TExT assessors\u003c\/li\u003e\n\u003cli\u003eEmployer brief and design parameters, including control benchmarks, process and hazard information, and discharge requirements\u003c\/li\u003e\n\u003cli\u003eSystem specification: hood types, ductwork, filtration, air movers, test points, alarms, and indicators\u003c\/li\u003e\n\u003cli\u003eOperating and maintenance manual requirements and log book obligations\u003c\/li\u003e\n\u003cli\u003eCommissioning requirements, what must be demonstrated, and what a valid commissioning report must contain\u003c\/li\u003e\n\u003cli\u003eThorough Examination and Test: statutory intervals, procedure, and documentation\u003c\/li\u003e\n\u003cli\u003eEnd-of-life stage covering dismantling and disposal\u003c\/li\u003e\n\u003cli\u003eUpdated example templates and forms in the appendices\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePublished Date:\u003c\/strong\u003e 22\/04\/2026\u003cbr\u003e\u003cstrong\u003eNumber of Pages:\u003c\/strong\u003e 64\u003cbr\u003e\u003cstrong\u003eISBN:\u003c\/strong\u003e 978-0-9957600-2-8\u003cbr\u003e\u003cstrong\u003ePublisher:\u003c\/strong\u003e Building Engineering Services Association (BESA)\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/online.pubhtml5.com\/lxie\/glyd\/\"\u003eClick Here For A Preview\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003ePDF Download\u003c\/strong\u003e\u003c\/p\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":43958518218918,"sku":"TR40","price":199.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/tr40-local-exhaust-ventilation-guide-good-practice-cover.webp?v=1776933089"},{"product_id":"site-safety-guide-good-practice","title":"Site Safety: A Guide To Good Practice","description":"\u003cp\u003eHS1: Guide to Good Practice for Site Safety builds on the proven, core principles of site safety from previous issues and incorporates recent advances and case studies of good practice within the construction industry.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eConstruction sites are high risk working environments. Every year many construction site workers are killed or injured as a result of their work; or suffer ill health, such as respiratory diseases, musculoskeletal disorders, dermatitis, or asbestosis. It’s crucial that construction activities are adequately controlled and that health and safety regulations are followed closely to reduce the chance of accidents and to protect the lives of your employees and the general public.\u003c\/p\u003e\n\u003cp\u003ePreviously known as the “H\u0026amp;V Safety Guide” this publication was introduced to the industry in 1969. Since its inception, it has been regularly updated and revisited to meet changes in health and safety legislation and evolving business practices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemember - Keep safety in your sites.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePublished Date: \u003c\/strong\u003e19\/07\/2021\u003cbr\u003e\u003cstrong\u003eNumber of Pages: \u003c\/strong\u003e106\u003cbr\u003e\u003cstrong\u003eISBN: \u003c\/strong\u003e0-903783-57-6\u003cbr\u003e\u003ca href=\"https:\/\/online.pubhtml5.com\/lxie\/htpc\/\"\u003eClick Here for a Preview\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003e PDF Download \u003c\/strong\u003e\u003c\/p\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":43958518251686,"sku":"HS1","price":120.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/hs1-guide-site-safety-besa-publication.jpg?v=1743505076"},{"product_id":"guide-good-practice-heat-pumps","title":"TR30 Guide To Good Practice For Heat Pumps","description":"TR30: Guide to Good Practice for Heat Pumps aims to provide an overview of the different applications of Heat Pumps including their benefits and limitations as well as providing outline design information for each of them.\u003cbr\u003e\u003cbr\u003e\u003cp\u003eSince the first edition of this guide was published, there has been a significant increase in the use of heat pump technologies. This uptake has resulted in a broader range of choices for end users, specifiers and installers, and also a greater knowledge of their potential benefits and pitfalls.\u003c\/p\u003e\n\u003cp\u003eNew regulations, assurance schemes, government incentives and market entrants have led to the development of a landscape where heat pump technologies are playing an increasing part and where there is a need for a recognised source of good practice to be made widely available to avoid some of the potential design pitfalls.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"blueCaps redCaps\"\u003eHEAT PUMP INSTALLER COURSE\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDeveloped in collaboration with Home Builders Federation (HBF) and Worcester Bosch, this course will give you the knowledge to capitalise not just on installations in 'new builds' but also the domestic retrofit market too.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor further details visit:\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/academy\/online-courses\/heat-pumps-installer-course\/\" target=\"_blank\"\u003eThe BESA Academy\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePublished Date:  \u003c\/strong\u003e19\/07\/2021\u003cbr\u003e\u003cstrong\u003eNumber of Pages:  \u003c\/strong\u003e45\u003cbr\u003e\u003cstrong\u003eISBN:  \u003c\/strong\u003e978-0-903783-58-3\u003cbr\u003e \u003ca href=\"https:\/\/online.pubhtml5.com\/lxie\/jxeq\/\"\u003eClick Here for a Preview\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003e  PDF Download \u003c\/strong\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":43958518284454,"sku":"TR30","price":140.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/tr30-heat-pumps-besa-publication.jpg?v=1743522865"},{"product_id":"fire-test-standards-construction-regulation","title":"Fire Test Standards And The Construction Products Regulation Guidance","description":"Fire test standards and the Construction Products Regulation in relation to fire resisting ventilation and smoke control ductwork\u003cbr\u003e\u003cbr\u003e\u003cp\u003eFollowing the implementation of the construction products regulations (CPR) in July 2013, it is a legal requirement to comply with any harmonised European product standard and provide tested products covered by that standard. With regards to fire resisting ventilation and smoke control duct sections not all the required standards are published and consequently this limits what can be supplied. 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Published by BESA.\",\n  \"sku\": \"TR19AIR-2019\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"BESA\"\n  },\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"price\": \"200.00\",\n    \"priceCurrency\": \"GBP\",\n    \"priceValidUntil\": \"2030-12-31\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"url\": \"https:\/\/publications.thebesa.com\/products\/internal-cleanliness-ventilation-systems\",\n    \"shippingDetails\": {\n      \"@type\": \"OfferShippingDetails\",\n      \"shippingDestination\": {\n        \"@type\": \"DefinedRegion\",\n        \"addressCountry\": \"GB\"\n      },\n      \"shippingRate\": {\n        \"@type\": \"MonetaryAmount\",\n        \"value\": \"0.00\",\n        \"currency\": \"GBP\"\n      },\n      \"deliveryTime\": {\n        \"@type\": \"ShippingDeliveryTime\",\n        \"handlingTime\": {\n          \"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        },\n        \"transitTime\": {\n          \"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        }\n      }\n    }\n  }\n}\n\u003c\/script\u003e\u003c\/p\u003e\n\u003cp\u003eTR 19® Air sets out best practice standards for the cleanliness of ventilation systems in commercial and public buildings. Published by the Building Engineering Services Association (BESA), it addresses the increasing emphasis on indoor air quality and its impact on health, comfort, and safety.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePurpose:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis updated specification provides detailed guidance on the cleaning, maintenance, and verification of internal ductwork cleanliness. It helps building owners, operators, contractors, and consultants meet legal obligations under the Workplace (Health, Safety and Welfare) Regulations, BS EN 15780, and other relevant standards.\u003c\/p\u003e\n\u003cp\u003eKey Features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDefines measurable cleanliness levels for new and existing ductwork systems.\u003c\/li\u003e\n\u003cli\u003eCovers risk assessment, inspection, testing, and cleaning methodologies.\u003c\/li\u003e\n\u003cli\u003eUpdated to reflect new standards and best practices for indoor air hygiene.\u003c\/li\u003e\n\u003cli\u003eEmphasizes risk reduction related to airborne particulates, fire hazards, and microbiological contamination.\u003c\/li\u003e\n\u003cli\u003eApplicable to new construction, refurbishment projects, and regular system maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUpdate includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 12.0pt;\"\u003eTR19® Air now references the requirements of the Ventilation Hygiene Register (VHR). \u003c\/span\u003e\u003cspan style=\"font-size: 12.0pt;\"\u003eDetails on Post clean reporting have now been included, as a new section (section 9). \u003c\/span\u003e\u003cspan style=\"font-size: 12.0pt;\"\u003eChanges are made to reflect the recently issued update to BS EN 15780 \u003c\/span\u003e\u003cspan style=\"font-size: 12.0pt;\"\u003eDetails have been added on ductwork sensors. Whilst this is short due to the relative newness of the technology, their adoption is expected to grow in the future.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 12.0pt;\"\u003eThese main changes have been made to sections 4, 8.9 and 11 \u0026amp; Appendix A (to reflect changes to Appendix F of BS EN 15780).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Note:\u003c\/strong\u003e\u003cbr\u003eThe fire risk management of grease accumulation in kitchen extract systems is now covered separately under \u003ca href=\"https:\/\/publications.thebesa.com\/products\/grease-specification-fire-risk-management-kitchen-extraction\"\u003eTR19® Grease.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWho Should Use This Guide:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for building services engineers, facilities managers, maintenance contractors, specifiers, consulting engineers, and specialist air hygiene companies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre you part of the UK’s Vent Hygiene Register (VHR)?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Vent Hygiene Register is the recognised scheme for demonstrating compliance, evidencing technical standards, and gaining business opportunities in the ventilation hygiene sector.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.thebesa.com\/vent-hygiene-register\/contractors\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eJoin The Vent Hygiene Register\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eLaunching March 3rd 2026, VHR are expanding the Register to cover TR 19 Air not just Grease. You can learn more \u0026amp; register your interest below.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.thebesa.com\/vhr-air\"\u003eLearn More\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePublished Date:\u003c\/b\u003e 03\/03\/2026\u003cbr\u003e\u003cb\u003eNumber of Pages:\u003c\/b\u003e 62\u003cbr\u003e\u003cb\u003eISBN:\u003c\/b\u003e 978-1-7391873-1-6\u003cbr\u003e\u003ca href=\"https:\/\/online.pubhtml5.com\/lxie\/xxem\/\"\u003eClick Here For A Preview\u003c\/a\u003e\u003cbr\u003e\u003cb\u003ePDF Download\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTraining: BESA Certified Air Hygiene Courses \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBESA Academy have also updated their range of air hygiene courses to reflect the updated TR 19® Air requirements and recommendations.\u003c\/p\u003e\n\u003cp\u003eEnsure your operatives or technicians are trained to deliver a service to the highest of standards. And don’t put your business or your clients at risk.\u003c\/p\u003e\n\u003cp\u003eTo find out more about the courses available, visit the \u003ca href=\"https:\/\/www.thebesa.com\/besa-academy\/training-centres\/ventilation-courses#air\"\u003eBESA Academy\u003c\/a\u003e website.\u003c\/p\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":45146423853222,"sku":"","price":200.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/TR19AIRUpdatedcover.png?v=1772638502"},{"product_id":"air-conditioning-heat-pump-equipment","title":"TB57 R290 In Air Conditioning And Heat Pump Equipment","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"TechArticle\",\n  \"headline\": \"TB57 R290 In Air Conditioning And Heat Pump Equipment\",\n  \"author\": {\n    \"@type\": \"Organization\",\n    \"name\": \"BESA\"\n  },\n  \"publisher\": {\n    \"@type\": \"Organization\",\n    \"name\": \"BESA\",\n    \"url\": \"https:\/\/www.thebesa.com\"\n  },\n  \"datePublished\": \"2026-04-14T00:00:00+00:00\",\n  \"dateModified\": \"2026-04-14T00:00:00+00:00\",\n  \"inLanguage\": \"en-GB\",\n  \"url\": \"https:\/\/publications.thebesa.com\/products\/tb57-r290-in-air-conditioning-and-heat-pump-equipment\",\n  \"mainEntityOfPage\": {\n    \"@type\": \"WebPage\",\n    \"@id\": \"https:\/\/publications.thebesa.com\/products\/tb57-r290-in-air-conditioning-and-heat-pump-equipment\"\n  },\n  \"image\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/TB57-R290-air-conditioning-heat-pump-equipment.webp\",\n  \"description\": \"R290 bulletin covering refrigerant properties, flammability risks, EN 378 charge limits, and safe installation in air conditioning and heat pump systems.\",\n  \"isAccessibleForFree\": true,\n  \"audience\": {\n    \"@type\": \"Audience\",\n    \"audienceType\": \"Contractors, installers, technicians and building services professionals\"\n  },\n  \"articleSection\": \"Refrigerants, Air Conditioning, Heat Pumps, Building Services, Health And Safety\",\n  \"keywords\": [\n    \"TB57\",\n    \"R290\",\n    \"propane refrigerant\",\n    \"air conditioning\",\n    \"heat pump equipment\",\n    \"flammable refrigerants\",\n    \"EN 378\",\n    \"refrigerant charge limits\",\n    \"building services\",\n    \"BESA\"\n  ]\n}\n\u003c\/script\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"TB57 R290 In Air Conditioning And Heat Pump Equipment\",\n  \"image\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/TB57-R290-air-conditioning-heat-pump-equipment.webp\",\n  \"description\": \"R290 bulletin covering refrigerant properties, flammability risks, EN 378 charge limits, and safe installation in air conditioning and heat pump systems.\",\n  \"sku\": \"TB57\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"BESA\"\n  },\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"price\": \"0.00\",\n    \"priceCurrency\": \"GBP\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"url\": \"https:\/\/publications.thebesa.com\/products\/tb57-r290-in-air-conditioning-and-heat-pump-equipment\",\n    \"hasMerchantReturnPolicy\": {\n      \"@type\": \"MerchantReturnPolicy\",\n      \"returnPolicyCategory\": \"https:\/\/schema.org\/NoReturn\",\n      \"applicableCountry\": \"GB\"\n    },\n    \"shippingDetails\": {\n      \"@type\": \"OfferShippingDetails\",\n      \"shippingDestination\": {\n        \"@type\": \"DefinedRegion\",\n        \"addressCountry\": \"GB\"\n      },\n      \"shippingRate\": {\n        \"@type\": \"MonetaryAmount\",\n        \"value\": \"0.00\",\n        \"currency\": \"GBP\"\n      },\n      \"deliveryTime\": {\n        \"@type\": \"ShippingDeliveryTime\",\n        \"handlingTime\": {\n          \"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        },\n        \"transitTime\": {\n          \"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        }\n      }\n    }\n  }\n}\n\u003c\/script\u003e\n\n\u003cp\u003eR290 is expected to play an increasingly important role in air conditioning and heat pump equipment as restrictions on higher GWP refrigerants tighten. This technical bulletin explains why uptake of R290 is likely to increase, particularly in response to EU phase down measures for split systems and wider market changes affecting the UK.\u003c\/p\u003e\n\n\u003cp\u003eWhile R290 offers clear benefits, including very low Global Warming Potential and strong heat transfer performance, it is also classified as an A3 refrigerant with high flammability. This bulletin provides an overview of the key properties of R290 and highlights the additional health and safety considerations that apply during installation, maintenance, and retrofitting.\u003c\/p\u003e\n\n\u003cp\u003eIt includes guidance on working safely with flammable refrigerants, the importance of ventilation, leak detection, purging procedures, and the need for suitable risk assessment before carrying out work. The bulletin also outlines charge limitations under EN 378 and highlights important installation and spacing considerations for enclosed spaces, domestic applications, and retrofit scenarios.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eExplains why R290 use is expected to increase in air conditioning and heat pump systems\u003c\/li\u003e\n\u003cli\u003eSummarises the key properties and performance characteristics of R290\u003c\/li\u003e\n\u003cli\u003eHighlights the health and safety implications of working with an A3 flammable refrigerant\u003c\/li\u003e\n\u003cli\u003eIncludes guidance on charge limitations under EN 378\u003c\/li\u003e\n\u003cli\u003eCovers key installation and retrofit considerations for safer application\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePublished Date:\u003c\/strong\u003e 14\/04\/2026\u003cbr\u003e\u003cstrong\u003eNumber Of Pages:\u003c\/strong\u003e 4\u003cbr\u003e\u003cstrong\u003ePDF Download\u003c\/strong\u003e\u003c\/p\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":45570754379942,"sku":"","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/TB57-R290-air-conditioning-heat-pump-equipment.webp?v=1776166193"},{"product_id":"play-it-safe-building-safety-act-guide","title":"BESA's \"Play It Safe\" Building Safety Act Guide","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"TechArticle\",\n      \"headline\": \"BESA's \\\"Play It Safe\\\" Building Safety Act Guide\",\n      \"author\": {\n        \"@type\": \"Organization\",\n        \"name\": \"BESA\",\n        \"url\": \"https:\/\/www.thebesa.com\"\n      },\n      \"publisher\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Building Engineering Services Association\",\n        \"url\": \"https:\/\/www.thebesa.com\"\n      },\n      \"datePublished\": \"2024-04-01T00:00:00+00:00\",\n      \"dateModified\": \"2024-04-01T00:00:00+00:00\",\n      \"version\": \"First Edition (2024)\",\n      \"inLanguage\": \"en\",\n      \"url\": \"https:\/\/publications.thebesa.com\/products\/play-it-safe-building-safety-act-guide\",\n      \"mainEntityOfPage\": {\n        \"@type\": \"WebPage\",\n        \"@id\": \"https:\/\/publications.thebesa.com\/products\/play-it-safe-building-safety-act-guide\"\n      },\n      \"image\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/building-safety-act-guide-play-it-safe-besa.jpg?v=1743420612\",\n      \"description\": \"Play it Safe is an interactive guide explaining Building Safety Act roles and compliance strategies through the teamwork analogy of football. 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Respondents from larger organisations are more likely to be aware of the BSA compared with those from smaller companies, in terms of numbers of employees.\u003c\/p\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":45936953753766,"sku":"","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/besa-industry-report-building-safety-act.jpg?v=1743420401"},{"product_id":"installation-maintenance-fire-dampers","title":"DW145 Installation And Maintenance Of Fire Dampers: A Guide To Good Practice","description":"\u003cp\u003e\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"TechArticle\",\n  \"headline\": \"DW145 Fire Dampers (E\/EI) Leakage Classified Fire Dampers (ES\/EIS)\",\n  \"alternativeHeadline\": \"Guide to good practice for the installation, design and selection, inspection and maintenance\",\n  \"author\": {\n    \"@type\": \"Organization\",\n    \"name\": \"BESA\"\n  },\n  \"publisher\": {\n    \"@type\": \"Organization\",\n    \"name\": \"BESA\",\n    \"url\": \"https:\/\/www.thebesa.com\"\n  },\n  \"datePublished\": \"2024-11-01T00:00:00+00:00\",\n  \"dateModified\": \"2024-11-01T00:00:00+00:00\",\n  \"version\": \"Second Edition - November 2024\",\n  \"isbn\": \"978-1-7391873-2-3\",\n  \"inLanguage\": \"en-GB\",\n  \"url\": \"https:\/\/publications.thebesa.com\/products\/installation-maintenance-fire-dampers\",\n  \"mainEntityOfPage\": {\n    \"@type\": \"WebPage\",\n    \"@id\": \"https:\/\/publications.thebesa.com\/products\/installation-maintenance-fire-dampers\"\n  },\n  \"image\": \"https:\/\/publications.thebesa.com\/cdn\/shop\/files\/dw145-fire-dampers-besa-publication.jpg\",\n  \"description\": \"DW145 is BESA’s guide to good practice for fire dampers and leakage classified fire dampers, covering installation, design and selection, inspection and maintenance.\",\n  \"isAccessibleForFree\": false,\n  \"audience\": {\n    \"@type\": \"Audience\",\n    \"audienceType\": \"System designers, contractors, installers, inspectors and maintenance professionals\"\n  },\n  \"articleSection\": \"Fire Safety, Fire Dampers, Building Regulations, Building Safety\",\n  \"keywords\": [\n    \"DW145\",\n    \"fire dampers\",\n    \"leakage classified fire dampers\",\n    \"fire damper installation\",\n    \"fire damper inspection\",\n    \"fire damper maintenance\",\n    \"building safety\",\n    \"BESA\"\n  ]\n}\n\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"DW145 Fire Dampers (E\/EI) Leakage Classified Fire Dampers (ES\/EIS)\",\n  \"description\": \"DW145 is BESA’s guide to good practice for fire dampers and leakage classified fire dampers, covering installation, design and selection, inspection and maintenance.\",\n  \"image\": \"https:\/\/publications.thebesa.com\/cdn\/shop\/files\/dw145-fire-dampers-besa-publication.jpg\",\n  \"sku\": \"DW145-Second-Edition\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"BESA\"\n  },\n  \"isbn\": \"978-1-7391873-2-3\",\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"price\": \"695.00\",\n    \"priceCurrency\": \"GBP\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"url\": \"https:\/\/publications.thebesa.com\/products\/installation-maintenance-fire-dampers\",\n    \"hasMerchantReturnPolicy\": {\n      \"@type\": \"MerchantReturnPolicy\",\n      \"returnPolicyCategory\": \"https:\/\/schema.org\/NoReturn\",\n      \"applicableCountry\": \"GB\"\n    },\n    \"shippingDetails\": {\n      \"@type\": \"OfferShippingDetails\",\n      \"shippingDestination\": {\n        \"@type\": \"DefinedRegion\",\n        \"addressCountry\": \"GB\"\n      },\n      \"shippingRate\": {\n        \"@type\": \"MonetaryAmount\",\n        \"value\": \"0.00\",\n        \"currency\": \"GBP\"\n      },\n      \"deliveryTime\": {\n        \"@type\": \"ShippingDeliveryTime\",\n        \"handlingTime\": {\n          \"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        },\n        \"transitTime\": {\n          \"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        }\n      }\n    }\n  }\n}\n\u003c\/script\u003e\u003c\/p\u003e\n\u003cp\u003eDW145 is BESA’s definitive guide to good practice for fire dampers and leakage classified fire dampers. As the Association’s flagship publication in this area, it provides practical guidance on design and selection, installation, inspection, and maintenance to help deliver compliant fire damper systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBackground\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe second edition of DW145 has been comprehensively revised to reflect today’s far more demanding fire safety and compliance environment. Developed in response to increased scrutiny of fire damper design, installation, inspection, and maintenance, it addresses the need for higher technical competence, clearer responsibilities, and stronger evidence of compliance across the full project lifecycle.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat The 2024 Edition Covers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis second edition covers the full fire damper process, from design and selection to installation, inspection, maintenance, and fault finding. It focuses on the practical and compliance issues that matter most in real projects, including statutory requirements, manufacturers’ instructions, penetration seals, access, breakaway joints, and the evidence needed to prove compliance.\u003c\/p\u003e\n\u003cp\u003eThe guide places particular emphasis on competence and accountability under the modern building safety regime. It highlights the need for clear design information, asset referencing, photographic evidence, maintenance access, and documented installation and inspection records to support the Golden Thread of information throughout the life of the building.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded With This Purchase\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTo support understanding of the revised guidance, purchase of DW145 also includes access to BESA Academy’s online \u003ca rel=\"noopener noreferrer\" href=\"https:\/\/besa.academy\/local\/intellicart\/view.php?id=90\" target=\"_blank\"\u003eFire Damper Awareness Course\u003c\/a\u003e. This added learning resource helps users and their teams understand the key updates within the revised document and apply them more confidently in practice.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWho Should Use This Guide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEssential for system designers, mechanical services contractors, ductwork contractors, fire damper installers, inspectors, maintenance teams, principal designers, and other professionals involved in the specification, installation, inspection, and ongoing maintenance of fire damper systems.\u003c\/p\u003e\n\u003cp\u003eThe document is also highly relevant to those responsible for demonstrating compliance with current fire safety legislation and maintaining accurate building safety records.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Topics Covered Include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSelection and classification of fire dampers and leakage classified fire dampers\u003c\/li\u003e\n\u003cli\u003eInstallation methods, supporting constructions, penetration seals, and breakaway joints\u003c\/li\u003e\n\u003cli\u003eDesign responsibilities, design schedules, and system coordination\u003c\/li\u003e\n\u003cli\u003eInspection, maintenance, fault finding, and access requirements\u003c\/li\u003e\n\u003cli\u003ePhotographic evidence, asset records, and Golden Thread information\u003c\/li\u003e\n\u003cli\u003eAccess to BESA Academy’s online Fire Damper course\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePublished Date:\u003c\/strong\u003e 01\/08\/2025\u003cbr\u003e\u003cstrong\u003eNumber of Pages:\u003c\/strong\u003e 169\u003cbr\u003e\u003cstrong\u003eISBN:\u003c\/strong\u003e 978-1-7391873-2-3\u003cbr\u003e\u003cstrong\u003ePublisher:\u003c\/strong\u003e Building Engineering Services Association (BESA)\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/online.pubhtml5.com\/vbpm\/fxqb\/\"\u003eClick Here For A Preview\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003ePDF Download\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch5 style=\"font-size: 20px; font-weight: bold;\"\u003e\u003cspan style=\"text-decoration: underline; color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"font-family: Poppins; font-style: normal;\"\u003eBESA DW145 Fire Damper Inspection and Maintenance Course\u003c\/span\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp\u003eBESA Academy has launched a new\u003cspan style=\"line-height: 20.85px;\"\u003e \u003cstrong\u003eEAL Approved\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"line-height: 20.85px;\"\u003e fire damper inspection and maintenance course aligned to the \u003cstrong\u003efire damper components of National Occupational Standard (NOS) BSEFSD04\u003c\/strong\u003e and the \u003cstrong\u003eBESA DW145 technical guidance\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"line-height: 20.85px;\"\u003eThe DW145 Fire Damper Inspection and Maintenance Course is designed to help engineers \u003cstrong\u003edemonstrate \u003c\/strong\u003etheir \u003cstrong\u003eskills and knowledge\u003c\/strong\u003e. On successful completion, an EAL certificate will be issued which can be used to \u003cstrong\u003eapply for the Blue Skilled Worker SKILLcard\u003c\/strong\u003e. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"line-height: 20.85px;\"\u003e\u003cspan style=\"font-weight: bold;\"\u003eWho is this course for?\u003c\/span\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"list-style-type: disc;\"\u003e\n\u003cli\u003e\n\u003cspan style=\"line-height: 20.85px;\"\u003eFire damper inspectors and technicians\u003c\/span\u003e\u003cspan style=\"background-color: #c6c6c6; line-height: 20.85px;\"\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"line-height: 20.85px;\"\u003eHVAC \/ ductwork engineers\u003c\/span\u003e\u003cspan style=\"background-color: #c6c6c6; line-height: 20.85px;\"\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"line-height: 20.85px;\"\u003eVentilation and hygiene 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Title","offer_id":51910897074558,"sku":"DW145-Updated","price":695.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/dw145_cover.png?v=1782288569"},{"product_id":"skeb-toolkit-industrial-commercial-ductwork","title":"BESA SKEB Toolkit: Industrial And Commercial Ductwork Installers Updated","description":"\u003cp\u003e\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"TechArticle\",\n  \"headline\": \"BESA SKEB Toolkit: Industrial And Commercial Ductwork Installers\",\n  \"publisher\": {\n    \"@type\": \"Organization\",\n    \"name\": \"BESA\"\n  },\n  \"datePublished\": \"2025-06-17T00:00:00+00:00\",\n  \"dateModified\": \"2025-06-17T00:00:00+00:00\",\n  \"version\": \"2025 Edition\",\n  \"inLanguage\": \"en\",\n  \"url\": \"https:\/\/publications.thebesa.com\/products\/skeb-toolkit-industrial-commercial-ductwork\",\n  \"mainEntityOfPage\": {\n    \"@type\": 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installers, outlining SKEB competence, on-site behaviours, and recognised training pathways.\",\n  \"sku\": \"SKEB-01\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"BESA\"\n  },\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"price\": \"0.00\",\n    \"priceCurrency\": \"GBP\",\n    \"priceValidUntil\": \"2030-12-31\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"url\": \"https:\/\/publications.thebesa.com\/products\/skeb-toolkit-industrial-commercial-ductwork\",\n    \"hasMerchantReturnPolicy\": {\n      \"@type\": \"MerchantReturnPolicy\",\n      \"returnPolicyCategory\": \"https:\/\/schema.org\/NoReturn\",\n      \"applicableCountry\": \"GB\"\n    },\n    \"shippingDetails\": {\n      \"@type\": \"OfferShippingDetails\",\n      \"shippingDestination\": {\n        \"@type\": \"DefinedRegion\",\n        \"addressCountry\": \"GB\"\n      },\n      \"shippingRate\": {\n        \"@type\": \"MonetaryAmount\",\n        \"value\": \"0.00\",\n        \"currency\": \"GBP\"\n      },\n      \"deliveryTime\": {\n        \"@type\": \"ShippingDeliveryTime\",\n        \"handlingTime\": {\n          \"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        },\n        \"transitTime\": {\n          \"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        }\n      }\n    }\n  }\n}\n\u003c\/script\u003e\u003c\/p\u003e\n\u003cp\u003eThis document forms part of BESA’s Practical SKEB Toolkit - a growing series of guides designed to support individuals and organisations in the building engineering services sector to better understand, evidence, and apply the principles of Skills, Knowledge, Experience and Behaviours (SKEB) in practice.\u003c\/p\u003e\n\u003cp\u003eThis guide focuses on Industrial And Commercial Ductwork Installers and has been developed by BESA in collaboration with industry experts to align with current best practice and support future regulatory expectations.\u003c\/p\u003e\n\u003cp\u003eIt provides:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA breakdown of the Skills, Knowledge and\u003cbr\u003eExperience (SKE) required for safe and compliant ductwork installation.\u003c\/li\u003e\n\u003cli\u003eGuidance on the professional\u003cbr\u003eBehaviours (B) expected on-site.\u003c\/li\u003e\n\u003cli\u003ePractical suggestions on how individuals and employers can evidence competence.\u003c\/li\u003e\n\u003cli\u003eReference to recognised training and qualification pathways.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUpdate: \u003cspan style=\"font-size: 11.0pt; font-family: 'Aptos',sans-serif; mso-fareast-font-family: Aptos; mso-fareast-theme-font: minor-latin; mso-bidi-font-family: Aptos; mso-ligatures: standardcontextual; mso-ansi-language: EN-GB; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;\"\u003e:The Guide has been updated to include a section on 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\"datePublished\": \"2025-07-15T00:00:00+00:00\",\n  \"dateModified\": \"2025-07-15T00:00:00+00:00\",\n  \"version\": \"1st Edition, July 2025\",\n  \"inLanguage\": \"en\",\n  \"url\": \"https:\/\/publications.thebesa.com\/products\/tb59-ductwork-connections-fire-dampers\",\n  \"mainEntityOfPage\": {\n    \"@type\": \"WebPage\",\n    \"@id\": \"https:\/\/publications.thebesa.com\/products\/tb59-ductwork-connections-fire-dampers\"\n  },\n  \"image\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/TB59-Further-Guidance-Fire-Damper.png?v=1752569643\",\n  \"description\": \"TB59 offers supplementary guidance to DW145 on compliant duct-to-fire damper connections, supporting fire safety and regulatory compliance.\",\n  \"isAccessibleForFree\": true,\n  \"audience\": {\n    \"@type\": \"Audience\",\n    \"audienceType\": \"Construction industry professionals\"\n  },\n  \"articleSection\": \"Fire Safety, Ductwork Installation, Building Regulations\",\n  \"keywords\": [\n    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\"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        }\n      }\n    }\n  }\n}\n\u003c\/script\u003e\u003c\/p\u003e\n\n\u003cp\u003eTB59 provides essential clarification on the correct method for connecting ductwork to fire dampers to ensure life safety and compliance with fire safety regulations. This technical bulletin addresses ongoing industry uncertainty around the use of self-drilling screws and reinforces the importance of break-away joints in ventilation systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePurpose:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTB59 builds on the core principles set out in \u003ca title=\"DW145 Installation And Maintenance Of Fire Dampers\" href=\"https:\/\/publications.thebesa.com\/products\/installation-maintenance-fire-dampers\"\u003eDW145\u003c\/a\u003e by offering additional guidance on compliant duct-to-damper connections. It supports duty holders, designers, contractors, and maintenance providers in meeting their obligations under UK fire safety law, particularly where legacy installations may not meet current best practice.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReinforces the requirement for break-away joints with low-melting-point fixings as per DW145 and other guidance\u003c\/li\u003e\n\u003cli\u003eClarifies the risks associated with using self-drilling screws in fire damper connections\u003c\/li\u003e\n\u003cli\u003eDetails how inappropriate fixings can impair fire damper operation and increase injury risks during maintenance\u003c\/li\u003e\n\u003cli\u003eSets out expectations for duty holders under the Regulatory Reform (Fire Safety) Order 2005 and equivalent legislation across the UK\u003c\/li\u003e\n\u003cli\u003eSupports industry efforts to raise standards in line with building safety reforms post-Grenfell\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Note:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis publication does not replace \u003ca title=\"DW145 Installation And Maintenance Of Fire Dampers\" href=\"https:\/\/publications.thebesa.com\/products\/installation-maintenance-fire-dampers\"\u003eDW145\u003c\/a\u003e but provides further clarity and interpretation where historic installation practices differ from established guidance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWho Should Use This Guide:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for mechanical contractors, building services engineers, designers, compliance managers, fire safety officers, and facilities teams responsible for maintaining ventilation systems in accordance with legal and safety requirements.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePublished Date:\u003c\/b\u003e 15\/07\/2025\u003cbr\u003e\u003cb\u003eNumber Of Pages:\u003c\/b\u003e 44\u003cbr\u003eMS Word Download\u003c\/p\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":55902045438334,"sku":"TB59","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/TB59-Further-Guidance-Fire-Damper.png?v=1752569643"},{"product_id":"tb-61-identification-of-ductwork","title":"TB61 Identification Of Ductwork","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"TechArticle\",\n  \"headline\": \"TB61 Identification Of Ductwork\",\n  \"author\": {\n    \"@type\": \"Organization\",\n    \"name\": \"BESA\"\n  },\n  \"publisher\": {\n    \"@type\": \"Organization\",\n    \"name\": \"BESA\",\n    \"url\": \"https:\/\/www.thebesa.com\"\n  },\n  \"datePublished\": \"2025-08-01T00:00:00+00:00\",\n  \"dateModified\": \"2025-08-01T00:00:00+00:00\",\n  \"inLanguage\": \"en-GB\",\n  \"url\": \"https:\/\/publications.thebesa.com\/products\/tb61-identification-of-ductwork\",\n  \"mainEntityOfPage\": {\n    \"@type\": \"WebPage\",\n    \"@id\": \"https:\/\/publications.thebesa.com\/products\/tb61-identification-of-ductwork\"\n  },\n  \"image\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/TB61-identification-of-ductwork-besa-publication.webp?v=1776164969\",\n  \"description\": \"TB61 Identification Of Ductwork provides updated guidance on ductwork labelling, colour coding, airflow direction and system identification.\",\n  \"isAccessibleForFree\": true,\n  \"audience\": {\n    \"@type\": \"Audience\",\n    \"audienceType\": \"Mechanical services contractors, consulting engineers and building services professionals\"\n  },\n  \"articleSection\": \"Ductwork, Ventilation, Air Conditioning, Building Services\",\n  \"keywords\": [\n    \"TB61\",\n    \"Identification Of Ductwork\",\n    \"ductwork identification\",\n    \"ductwork labelling\",\n    \"airflow direction\",\n    \"ductwork colour coding\",\n    \"ventilation systems\",\n    \"air conditioning systems\",\n    \"BESA\"\n  ]\n}\n\u003c\/script\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"TB61 Identification Of Ductwork\",\n  \"image\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/TB61-identification-of-ductwork-besa-publication.webp?v=1776164969\",\n  \"description\": \"TB61 Identification Of Ductwork provides updated guidance on ductwork labelling, colour coding, airflow direction and system identification.\",\n  \"sku\": \"TB61\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"BESA\"\n  },\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"price\": \"0.00\",\n    \"priceCurrency\": \"GBP\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"url\": \"https:\/\/publications.thebesa.com\/products\/tb61-identification-of-ductwork\",\n    \"hasMerchantReturnPolicy\": {\n      \"@type\": \"MerchantReturnPolicy\",\n      \"returnPolicyCategory\": \"https:\/\/schema.org\/NoReturn\",\n      \"applicableCountry\": \"GB\"\n    },\n    \"shippingDetails\": {\n      \"@type\": \"OfferShippingDetails\",\n      \"shippingDestination\": {\n        \"@type\": \"DefinedRegion\",\n        \"addressCountry\": \"GB\"\n      },\n      \"shippingRate\": {\n        \"@type\": \"MonetaryAmount\",\n        \"value\": \"0.00\",\n        \"currency\": \"GBP\"\n      },\n      \"deliveryTime\": {\n        \"@type\": \"ShippingDeliveryTime\",\n        \"handlingTime\": {\n          \"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        },\n        \"transitTime\": {\n          \"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          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TB61 provides updated guidance on the identification of ductwork, helping designers, contractors, and clients apply a more standardised approach across ventilation, air conditioning, and simple industrial exhaust systems.\u003c\/p\u003e\n\n\u003cp\u003eThis updated BESA guidance revises previously used categories and identifying colours, with enhanced definition of conditioned and extract air streams. It also removes the use of grey as a colour identifier, replacing it with an alternative symbol that provides better contrast against neighbouring insulation and ductwork materials.\u003c\/p\u003e\n\n\u003cp\u003eTB61 explains how ductwork identification should be used to show the type of air being conveyed, the direction of airflow, and where necessary the destination of the air or associated plant. It includes guidance on where symbols should be positioned, the recommended identification colours for different air streams, and how further identification should be applied on larger or more complex installations.\u003c\/p\u003e\n\n\u003cp\u003eDesigned for mechanical services contractors, consulting engineers, and building services professionals, this bulletin supports a more consistent and practical approach to ductwork identification. It also includes recommendations on explanatory charts, methods of applying symbols, and post-installation checks to help ensure labels remain clear, accurate, and durable.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eUpdated guidance on the identification of ductwork for ventilation, air conditioning, and simple industrial exhaust systems\u003c\/li\u003e\n\u003cli\u003eRevised colour categories with improved definition of conditioned and extract air streams\u003c\/li\u003e\n\u003cli\u003eGuidance on symbol placement, airflow direction, and further identification for complex systems\u003c\/li\u003e\n\u003cli\u003eRecommended colour coding for different air types, including hazardous air and kitchen extract\u003c\/li\u003e\n\u003cli\u003eAdvice on explanatory charts, application methods, and post-installation checks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePublished Date:\u003c\/strong\u003e 01\/08\/2025\u003cbr\u003e\u003cstrong\u003eNumber Of Pages:\u003c\/strong\u003e 6\u003cbr\u003e\u003cstrong\u003ePDF Download\u003c\/strong\u003e\u003c\/p\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":56188511617406,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/TB61-identification-of-ductwork-besa-publication.webp?v=1776164969"},{"product_id":"besa-skeb-toolkit-industrial-and-commercial-ventilation-hygiene","title":"BESA SKEB Toolkit: Industrial And Commercial Ventilation Hygiene","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"TechArticle\",\n  \"headline\": \"Demonstrating SKEB Industrial And Commercial Ventilation Hygiene\",\n  \"author\": {\n    \"@type\": \"Organization\",\n    \"name\": \"BESA\"\n  },\n  \"publisher\": {\n    \"@type\": \"Organization\",\n   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Developed by BESA in collaboration with industry experts, it aligns with current best practice and provides immediate, practical support for demonstrating competence within industrial and commercial ventilation hygiene.\u003c\/p\u003e\n\n\u003cp\u003eIt is intended to help employers, supervisors, operatives, and technicians take a more structured and consistent approach to competence. The guide explains what is expected in practice and how competence can be evidenced across key ventilation hygiene roles, including skills, knowledge, experience, behaviours, and organisational competence management.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eThe Skills, Knowledge, and Experience required for safe and compliant ventilation hygiene work\u003c\/li\u003e\n\u003cli\u003eThe professional Behaviours expected of operatives and technicians on site\u003c\/li\u003e\n\u003cli\u003ePractical guidance on evidencing competence for individuals and employers\u003c\/li\u003e\n\u003cli\u003eReference to recognised training and qualification pathways\u003c\/li\u003e\n\u003cli\u003eSupport for a more consistent and structured approach to competence across the sector\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis guide complements BESA’s wider competence and building safety guidance 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Based on a survey distributed to more than 20,000 businesses, it explores awareness, understanding, competence, and preparedness across the supply chain, highlighting where progress has been made and where important gaps still remain.\u003c\/p\u003e\n\n\u003cp\u003eThe findings show that overall awareness of the Building Safety Act is high and that understanding has improved since 2024. However, the report also highlights significant variation by company size and role, with smaller businesses more likely to be left behind and many respondents still unclear on dutyholder responsibilities, competence requirements, and organisational capability.\u003c\/p\u003e\n\n\u003cp\u003eDesigned for contractors, specialists, business leaders, and industry stakeholders, the report offers a practical snapshot of how the sector is adapting to a changing compliance landscape. It also identifies the key barriers to progress, including lack of clarity, cost and resource pressures, and insufficient guidance, while highlighting the additional training, tools, and support businesses say they need to improve compliance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePublished Date:\u003c\/strong\u003e 14\/04\/2026\u003cbr\u003e\u003cstrong\u003eNumber Of Pages:\u003c\/strong\u003e 20\u003cbr\u003e\u003cstrong\u003ePDF Download\u003c\/strong\u003e\u003c\/p\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":56449631912318,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/besa-building-safety-act-industry-report.webp?v=1776092989"},{"product_id":"besa-guidance-framework-for-principal-contractor-competence-pas-8672","title":"BESA Guidance Framework For Principal Contractor Competence (PAS 8672)","description":"\u003cp\u003e\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"TechArticle\",\n  \"headline\": \"BESA Guidance Framework For Principal Contractor Competence (PAS 8672)\",\n  \"author\": {\n    \"@type\": \"Organization\",\n    \"name\": \"BESA\"\n  },\n  \"publisher\": {\n    \"@type\": \"Organization\",\n    \"name\": \"BESA\",\n    \"url\": \"https:\/\/www.thebesa.com\"\n  },\n  \"datePublished\": \"2025-10-24T00:00:00+00:00\",\n  \"dateModified\": \"2025-10-24T00:00:00+00:00\",\n  \"inLanguage\": \"en-GB\",\n  \"url\": \"https:\/\/publications.thebesa.com\/products\/besa-guidance-framework-for-principal-contractor-competence-pas-8672\",\n  \"mainEntityOfPage\": {\n    \"@type\": \"WebPage\",\n    \"@id\": \"https:\/\/publications.thebesa.com\/products\/besa-guidance-framework-for-principal-contractor-competence-pas-8672\"\n  },\n  \"image\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/besa-guidance-framework-principal-contractor-competence-pas-8672.webp\",\n  \"description\": \"BESA guidance framework for Principal Contractor competence, supporting PAS 8672 and helping dutyholders meet building safety and compliance expectations.\",\n  \"isAccessibleForFree\": true,\n  \"audience\": {\n    \"@type\": \"Audience\",\n    \"audienceType\": \"Principal Contractors, clients, dutyholders and project delivery professionals\"\n  },\n  \"articleSection\": \"Building Safety Act, Principal Contractor Competence, PAS 8672, SKEB, Compliance\",\n  \"keywords\": [\n    \"Principal Contractor competence\",\n    \"PAS 8672\",\n    \"SKEB\",\n    \"Building Safety Act\",\n    \"building regulations\",\n    \"competence framework\",\n    \"BESA\",\n    \"dutyholders\",\n    \"construction compliance\",\n    \"Principal Contractor\"\n  ]\n}\n\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"BESA Guidance Framework For Principal Contractor Competence (PAS 8672)\",\n  \"image\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/besa-guidance-framework-principal-contractor-competence-pas-8672.webp\",\n  \"description\": \"BESA guidance framework for Principal Contractor competence, supporting PAS 8672 and helping dutyholders meet building safety and compliance expectations.\",\n  \"sku\": \"DOC-96-PAS-8672\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"BESA\"\n  },\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"price\": \"0.00\",\n    \"priceCurrency\": \"GBP\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"url\": \"https:\/\/publications.thebesa.com\/products\/besa-guidance-framework-for-principal-contractor-competence-pas-8672\",\n    \"hasMerchantReturnPolicy\": {\n      \"@type\": \"MerchantReturnPolicy\",\n      \"returnPolicyCategory\": \"https:\/\/schema.org\/NoReturn\",\n      \"applicableCountry\": \"GB\"\n    },\n    \"shippingDetails\": {\n      \"@type\": \"OfferShippingDetails\",\n      \"shippingDestination\": {\n        \"@type\": \"DefinedRegion\",\n        \"addressCountry\": \"GB\"\n      },\n      \"shippingRate\": {\n        \"@type\": \"MonetaryAmount\",\n        \"value\": \"0.00\",\n        \"currency\": \"GBP\"\n      },\n      \"deliveryTime\": {\n        \"@type\": \"ShippingDeliveryTime\",\n        \"handlingTime\": {\n          \"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        },\n        \"transitTime\": {\n          \"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        }\n      }\n    }\n  }\n}\n\u003c\/script\u003e\u003c\/p\u003e\n\u003cp\u003eThe role of the Principal Contractor is central to ensuring safety, compliance, and effective risk management throughout the construction phase of a project. Principal Contractors play a critical part in coordinating work on site, managing risks, and helping deliver projects safely, efficiently, and in line with building regulations.\u003c\/p\u003e\n\u003cp\u003eThis guidance framework supports the application of PAS 8672:2022, which clarified and strengthened competence requirements for the Principal Contractor role. In particular, it reflects the requirement for organisations appointed as Principal Contractors to designate a competent individual with the necessary Skills, Knowledge, Experience and Behaviours (SKEB) to carry out their statutory duties.\u003c\/p\u003e\n\u003cp\u003eThe framework provides a structured approach to understanding and implementing the competence expectations set out in PAS 8672. It defines recommended SKEB criteria for individuals performing Principal Contractor functions and supports a consistent, practical approach to competence assurance.\u003c\/p\u003e\n\u003cp\u003eIt also sets out competence requirements across key areas such as legal and contractual responsibilities, managing building work, planning and organising work, construction supervision and quality, leadership and competence culture, and stakeholder and information management. Designed for Principal Contractors, dutyholders, clients, and organisations involved in project delivery, it also includes an example competency assessment questionnaire to support procurement and self assessment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExplains the competence expectations set out in PAS 8672:2022\u003c\/li\u003e\n\u003cli\u003eSupports the designation of competent individuals with the required SKEB\u003c\/li\u003e\n\u003cli\u003eProvides a structured framework for assessing Principal Contractor competence\u003c\/li\u003e\n\u003cli\u003eCovers competence requirements across six key areas of project delivery\u003c\/li\u003e\n\u003cli\u003eIncludes an example competency assessment questionnaire for procurement and self assessment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePublished Date:\u003c\/strong\u003e 24\/10\/2025\u003cbr\u003e\u003cstrong\u003eNumber Of 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\"datePublished\": \"2026-02-18T00:00:00+00:00\",\n  \"dateModified\": \"2026-02-18T00:00:00+00:00\",\n  \"inLanguage\": \"en-GB\",\n  \"url\": \"https:\/\/publications.thebesa.com\/products\/the-clients-guide-to-the-building-safety-act-2026\",\n  \"mainEntityOfPage\": {\n    \"@type\": \"WebPage\",\n    \"@id\": \"https:\/\/publications.thebesa.com\/products\/the-clients-guide-to-the-building-safety-act-2026\"\n  },\n  \"image\": \"https:\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/clients-guide-building-safety-act-besa-publication.webp\",\n  \"description\": \"A practical guide to the Building Safety Act for clients by BESA, covering legal duties, competence, procurement, compliance and safer project decisions.\",\n  \"isAccessibleForFree\": true,\n  \"audience\": {\n    \"@type\": \"Audience\",\n    \"audienceType\": \"Clients, developers, asset owners and senior decision makers\"\n  },\n  \"articleSection\": \"Building Safety Act, Client Duties, Higher Risk Buildings, 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\"priceCurrency\": \"GBP\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"url\": \"https:\/\/publications.thebesa.com\/products\/the-clients-guide-to-the-building-safety-act-2026\",\n    \"hasMerchantReturnPolicy\": {\n      \"@type\": \"MerchantReturnPolicy\",\n      \"returnPolicyCategory\": \"https:\/\/schema.org\/NoReturn\",\n      \"applicableCountry\": \"GB\"\n    },\n    \"shippingDetails\": {\n      \"@type\": \"OfferShippingDetails\",\n      \"shippingDestination\": {\n        \"@type\": \"DefinedRegion\",\n        \"addressCountry\": \"GB\"\n      },\n      \"shippingRate\": {\n        \"@type\": \"MonetaryAmount\",\n        \"value\": \"0.00\",\n        \"currency\": \"GBP\"\n      },\n      \"deliveryTime\": {\n        \"@type\": \"ShippingDeliveryTime\",\n        \"handlingTime\": {\n          \"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        },\n        \"transitTime\": {\n          \"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        }\n      }\n    }\n  }\n}\n\u003c\/script\u003e\u003c\/p\u003e\n\u003cp\u003eIf you commission building work, the Building Safety Act defines you as the “Client”, with clear, non-transferable legal duties. The Client’s Guide to the Building Safety Act explains what the law requires, what good practice looks like, and how clients can make safer, better informed decisions throughout the life of a project.\u003c\/p\u003e\n\u003cp\u003eDeveloped by BESA with support from strategic partners, the guide is designed specifically for non-domestic clients. It provides a clear and practical overview of client responsibilities, helping organisations understand how leadership, competence, accountability, procurement, and decision making all shape safe and compliant project outcomes.\u003c\/p\u003e\n\u003cp\u003eThe guide is particularly relevant to organisations commissioning housing, healthcare, commercial, and other building projects. It covers the client’s duties across all buildings, explains what changes for Higher Risk Buildings, and highlights why compliance cannot simply be passed down the supply chain.\u003c\/p\u003e\n\u003cp\u003eDesigned for clients, developers, asset owners, and senior decision makers, this guide supports better procurement, stronger governance, and safer project outcomes. It also helps clients ask better questions of their teams, improve the quality of Gateway submissions, and take a more informed approach to compliance under the Building Safety Act.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExplains the client’s legal duties under the Building Safety Act\u003c\/li\u003e\n\u003cli\u003eProvides practical guidance for safer project leadership and decision making\u003c\/li\u003e\n\u003cli\u003eCovers competence, dutyholder appointments, and evidence based compliance\u003c\/li\u003e\n\u003cli\u003eHighlights additional duties for Higher Risk Buildings, including the Gateway process and Golden Thread\u003c\/li\u003e\n\u003cli\u003eSupports better procurement, risk management, and project outcomes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePublished Date: 18\/02\/2026\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eNumber Of Pages:\u003c\/strong\u003e 16\u003cbr\u003e\u003cstrong\u003ePDF Download\u003c\/strong\u003e\u003c\/p\u003e","brand":"BESA Guest","offers":[{"title":"Default Title","offer_id":56938172088702,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/clients-guide-building-safety-act-besa-publication.webp?v=1776089957"},{"product_id":"tb60-pipework-pneumatic-leak-testing-guidance","title":"TB60 Pipework Pneumatic Leak Testing - 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TB60 provides additional guidance to support this practice, helping contractors and engineers apply pneumatic testing in a safe, practical, and consistent way.\u003c\/p\u003e\n\u003cp\u003eThe bulletin sits alongside \u003ca title=\"TR\/6 Site Pressure Testing Of Pipework: Guide To Good Practice\" href=\"https:\/\/publications.thebesa.com\/products\/site-pressure-testing-pipework\"\u003eTR\/6 Guide to Good Practice for Site Pressure Testing of Pipework Systems\u003c\/a\u003e and expands on the established industry approach of carrying out a pneumatic leak test at 0.5 barg before proceeding to further testing. It explains the rationale behind the 100 litre limit referenced in TR\/6 and provides additional guidance where the total volume of pipework under test is greater than 100 litres.\u003c\/p\u003e\n\u003cp\u003eTB60 also includes guidance on calculating pipework test volumes, the implications of testing larger volumes at 0.5 barg, and the limitations of using reduced pneumatic test pressures. It reinforces the need for competent risk assessment, appropriate control measures, and safe systems of work where stored energy and testing risk increase.\u003c\/p\u003e\n\u003cp\u003eDesigned for contractors, commissioning professionals, and building services engineers, TB60 complements the wider BESA technical guidance library. 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\"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        },\n        \"transitTime\": {\n          \"@type\": \"QuantitativeValue\",\n          \"minValue\": 0,\n          \"maxValue\": 0,\n          \"unitCode\": \"d\"\n        }\n      }\n    }\n  }\n}\n\u003c\/script\u003e\n\n\u003cp\u003eAccess for inspection, servicing, and specialist cleaning is a critical consideration in hazardous plastic ductwork systems. TB 028 provides design guidance for the installation of access doors in hazardous plastic duct systems used for chemical, biological, and radioactive applications, where operational risk and maintenance requirements demand careful planning.\u003c\/p\u003e\n\n\u003cp\u003eThe bulletin supports designers and specifiers in determining when access doors are necessary and how they should be incorporated into higher risk ductwork installations. It reinforces the requirements set out in DW\/154 Specification for Plastic Ductwork, which states that access doors should be used for inspection and servicing only, with broader access requirements referenced in DW\/144.\u003c\/p\u003e\n\n\u003cp\u003eTB 028 highlights the importance of obtaining specialist advice when considering periodic internal cleaning, maintenance, and access for specialist cleaning equipment. It also outlines practical considerations for access door provision, including minimising the number and size of doors, positioning them to reduce leakage risk, ensuring an effective seal, and maintaining appropriate safety information for anyone opening the system.\u003c\/p\u003e\n\n\u003cp\u003eDesigned for designers, specifiers, and professionals involved in hazardous exhaust and specialist ductwork systems, TB\/28 complements the wider BESA technical guidance library.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesign guidance for installing access doors in hazardous plastic duct systems\u003c\/li\u003e\n\u003cli\u003eRelevant to chemical, biological, and radioactive ductwork applications\u003c\/li\u003e\n\u003cli\u003eSupports compliance with DW\/154 and references access requirements in DW\/144\u003c\/li\u003e\n\u003cli\u003eHighlights the need for specialist advice on cleaning and maintenance access\u003c\/li\u003e\n\u003cli\u003eOutlines practical design considerations to help reduce leakage and operational risk\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePublished Date:\u003c\/strong\u003e 14\/04\/2026\u003cbr\u003e\u003cstrong\u003eNumber Of Pages:\u003c\/strong\u003e 2\u003cbr\u003e\u003cstrong\u003ePDF Download\u003c\/strong\u003e\u003c\/p\u003e","brand":"BESA Publications","offers":[{"title":"Default Title","offer_id":57001517121918,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/0258\/4998\/files\/TB-028-installation-access-doors-hazardous-plastic-duct-systems.webp?v=1776080208"}],"url":"https:\/\/publications.thebesa.com\/collections\/publications.oembed?page=2\u0026id=14822955876734","provider":"BESA Publications","version":"1.0","type":"link"}