NFPA 251建筑结构和材料耐火测试-标准名称
NFPA 251 Standard methods of tests of fire resistance of building construction and materials.
NFPA 251建筑结构及材料的耐火试验标准方法

NFPA 251建筑结构和材料耐火测试-简介
NFPA251本标准提供了建筑构件和构件耐火性能的防火测试方法。本标准描述了评估组件类型包含火灾、保持其结构完整性或展示两种适当连接的持续时间的方法。

This standard provides methods of fire tests for the fire-resistive properties of building members and assemblies, This standard describes methods to evaluate the dura tion for which the types of assemblies noted in 1.3.1 contain a fire, retain their structural integrity, or exhibit both proper ties, depending on the type of assembly involved during a pre-
determined test exposure.It is the intention of this standard that fire resistance ratings be based on performance during the period of expo sure and not be used to determine suitability for use after fire exposure The results of these tests are one factor in assessing fire performance of building construction and assemblies.

NFPA 251建筑结构和材料耐火测试-相关标准
ASTM E119建筑物和建筑材料的防火检测