NF T51-073：塑料.防火性能.烟密度测试法
日期:2010-10-18 00:00
ic substances. Oxygen depletion which often occurs in a real fire situation has some effect on the smoke density but it is not a major one. On the other hand, in some cases reheating the smoke can have quite a dramatic effect, due very probably to further pyrolysis and combustion.
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