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
e temperature of the upper hot gas layer reaches 600C (1100F) or flames exit the doorway or spontaneous ignition of a paper target on the floor occurs. The spontaneous ignition of a crumpled single sheet of newspaper placed on the floor 0.9 m (3 ft) out from the center of the rear wall provides a visual indication of flashover.
The potential for the spread of fire to other objects in the room, remote from the ignition source, is evaluated by measurements of: (a) the total heat flux incident on t

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