ISO 5660-2: 燃烧测试－热释放，烟雾产生和质量损失－第1部分：动态测定烟雾的产生率
日期:2010-03-27 00:00
is calculated from measurement of the attenuation of a laser light beam by the combustion product stream. Smoke obscuration is recorded for the entire test, regardless of whether the specimen is flaming or not.
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