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BESA TR19
BESA TR19 are the duct-work cleaning guidelines provided by Building Engineering Services Association (BESA) for internal cleanliness of ventilation systems.[1] The guidelines were introduced in 2005 by amalgamation of pre-existing TR/17 and DW/TM2 guidelines. Once a system is TR19 compliant, it has been found that average total High Risk Combustion Load Levels (HR-CLLs) can be reduced by a total of 83%.[2]
History
The BESA TR19 guidelines were introduced in 2005 by updating the old TR/17 guidelines which were in effect from 1998. In 2014, TR19 was updated to reflect changes in European standard BS EN 15780:2011 – Ventilation for buildings – ductwork – cleanliness of ventilation systems.[3] TR19 was updated to reflect the benchmarks and testing protocols as contained in BS EN 15780.[citation needed] The prime changes in TR19 2005 and 2014 versions are introduction of a CQC, testing protocol and test equipment specification, separation of new duct systems from existing systems and introduction of the RRFSO.[ci
Swindon (/ˈswɪndən/ (listen)) is the largest town in Wiltshire, South West England, lying between Bristol, 35 miles (56 kilometres) to the west, and Reading, the same distance to the east. The town is 71 miles (114 km) west of London. The population of the Swindon built-up area was 185,600 in 2011.[1]
The Town Development Act 1952 led to a major increase in its population.[2]
Swindon railway station is on the line from London Paddington to Bristol. Swindon Borough Council is a unitary authority, independent of Wiltshire Council since 1997. Residents of Swindon are known as Swindonians. The town is home to the offices of English Heritage, the Historic England Archive (formerly the National Monuments Record Centre) and the headquarters of the National Trust (all three are on parts of the site of the former Great Western Railway's Swindon Works), and the head office of the Nationwide Building Society.
