Blue Book. Fire resisting ductwork. Tested to BS 476 Part 24. 3rd edition. Volume 2 of 2 - Rules for assessment

Publication Year

2023

Document Status

Current

Abstract

Intended to ensure that fire resisting ductwork (including smoke outlet/extraction ductwork) is correctly designed and installed in accordance with current UK legislative requirements. Provides information on current British Standard fire resistance and reaction-to-fire tests, together with recommended methods for appraisal systems for both direct and extended fields of application, and requirements for duct systems incorporating penetration seals, support systems and ancillary items. Identifies limitations in the scope of the guidance.

Document History

Supersedes Fire resisting ductwork - tested to BS 476 Part 24 (Blue book). British Standard version. 2nd edition (ASFP, 2011). See also, "Fire resisting ductwork - classified according to BS EN 13501 Parts 3 and 4 - European version (Blue book). 1st edition. (ASFP, 2009)". Amendment sheet: 31/08/17. Section All. New volume 3 produced to include all of existing assessment rules which were included in second edition of the Blue Book (BS) but which were omitted from third edition. 1/9/23. Section All. Text edited to correct a number of cross references (section 3 to 6). Table of duct sizes edite to correct mistake. Equations edited in 3.2.1.11 and 3.2.2.10 (d wrongly stated as L). Updated title and location of PFPF guide. Title amended to Vol 2 of 2, given withdrawl of data sheet volume. This document comprises 2 volumes.

ISBN

9781870409469

Publisher Information