ASTM E2257墙壁和天花板材料和组件的房屋着火试验的标准试验方法
日期:2012-02-08 12:03
and the time to flame extension beyond the doorway following flashover. It determines the extent to which the wall and ceiling materials or assemblies contribute to fire growth in a room and the potential for fire spread beyond the room, under the particular conditions simulated. It does not measure the contribution of the room contents. (See Appendix X1, Commentary.)
Note 1Time to flashover is defined herein as either the time when the radiant flux onto the floor exceeds 20 kW/m2 or the averag
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