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BS 476-31.1:1983 Fire tests on building materials and structures. Methods for measuring smoke penetration through doorsets and shutter assemblies. Method of measurement under ambient temperature conditions
standard by BSI Group, 10/31/1983
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This method measures air leakage of door and shutter assemblies under ambient temperature conditions as being representative of smoke penetration occurring from the early stages or at a remote position from a fire occurring in a building.Cross References:
BS 476:Part 10
BS 476:Part 22
BS 4422
Health and Safety at Work etc. Act 1974