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NFPA 252 门总�的��试验方法
日期:2012-02-10 14:36
nce 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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