防护服. 防火. 有限火焰蔓延的试验方法

[中文适用范围]： 本文件指定了两种试验程序（表面点火和底部边缘点火）用于测定垂直定向的单层或多层纺织材料的火焰蔓延特性，这些材料包括涂层、quilting、多层、夹层结构和其他类似组合，在受到小火焰时的行为。本测试标准不适用于受限空气供应或暴露于大量强热源的情况，对于这些情况，其他测试方法更为合适。此测试方法也不适合表现出广泛熔化或收缩的材料。 [外文原描述]： ISO 15025:2016 specifies two procedures (surface ignition and bottom-edge ignition) for determining flame spread properties of vertically oriented flexible materials in the form of single or multicomponent fabrics (coated, quilted, multilayered, sandwich constructions and similar combinations), when subjected to a small defined flame. This test standard does not apply to situations where there is restricted air supply or exposure to large sources of intense heat, for which other test methods are more appropriate. This test method is not appropriate for materials that demonstrate extensive melting or shrinkage.