TR/19 Guide to good practice. Internal cleanliness of ventilation systems. 2nd edition
Establishes a level of particulate cleanliness verification for both new and existing ventilation systems and an indication of when it is considered appropriate to clean systems in use. Includes a section on kitchen extract systems. Establishes levels of grease surface deposit at which it is appropriate to clean a kitchen extract ventilation system and at which post-clean verification is achieved. Includes guidelines to ensure that new ductwork systems remain protected during the installation period and prior to commissioning.
Superseded by 3rd edition published July 2019. In the 3rd edition section 7 has been withdrawn and superseded by TR/19 'Specification for: fire risk management of grease accumulation within kitchen extraction systems - grease' (BESA, 2019), a new stand-alone specification for fire risk management of grease accumulation within kitchen extraction systems. Supersedes TR19 Guide to good practice. Internal cleanliness of ventilation systems. (BES, 2013). First published as DW/TM2 (1991 and TR/17 (1998). Second edition (2002), TR/19 (2005) and TR/19 (2013).
Building Engineering Services Association
A trade organisation meeting the needs of building engineering services contractors involved with design, installation, commissioning, maintenance, control and management of engineering systems and services in buildings. It was established in 1904 as the National Association of Master Heating and Domestic Engineers and has been through a few name changes since, including: Heating and Ventilating Contractors' Association (HVCA) and from 2012 it was the known as the Building and Engineering Services Association (BES).
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