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Evaluate the ability of of fire doors to resist the passage of flame, heat, and gases with the latest testing provisions in the 2012 NFPA 252.

Revised to include updated references, the 2012 NFPA 252: Standard Methods of Fire Tests of Door Assemblies outlines methods of fire testing door assemblies that testing laboratories and manufacturers can use to determine assembly suitability when fire resistance of a specific duration is required. The Standard allows different fire door assemblies to be compared with each other in order to evaluate their relative performance as measured against a standard fire experience.