NFPA 252门总成的耐火试验方法

NFPA 252 STANDARD METHODS OF FIRE TESTS OF DOOR ASSEMBLIES
NFPA 252 门总成的耐火试验方法

1.1 Scope. This standard prescribes standardized fire and hose stream test procedures that apply to fire door assemblies intended to be used to retard the spread of fire through door openings in fire-resistive walls.
Protect lives with proper testing on door assemblies using the latest NFPA 252.
NFPA 252 outlines methods of fire testing door assemblies for determining assembly suitability when fire resistance of a specific duration is required.
The 2008 edition is updated to correlate with other documents
·    Revised definition of 'fire door assembly' provides greater consistency with NFPA 80 Fire Doors and Other Opening Protectives
·    New reference to ASTM E 2226 replaces the Standard's detailed hose-stream test requirements
There's no substitute for the latest information for fire test laboratories and fire door manufacturers. (Softbound, 15 pp., 2008)

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 来源：防火网　发布时间：12/20/2013 点击次数：1547