ASTM E681化合物(蒸气和气体)易燃性浓度限值的标准试验方法
日期:2012-02-08 11:03
test material requires large ignition energy, or if the material has large quenching distances.
1.3 Annex A1 provides a modified test method for materials (such as certain amines, halogenated materials, and the like) with large quenching distances which may be difficult to ignite.
1.4 In other situations where strong ignition sources (such as direct flame ignition) is considered credible, the use of a test method employing higher energy ignition source in a sufficiently large pressure chamber (a
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