ASTM E906用热电堆法材料和产品的热和可见烟释放率的标准试验方法
日期:2012-02-08 11:07
per square metre of original exposed surface area not per square metre of flame involved surface.
The rates of both heat and smoke release are calculated per square metre of original surface area exposed. If a specimen swells, sags, delaminates, or otherwise deforms so that the exposed surface area changes, calculated release rates correspond to the original area, not to the new surface area.
Heat-release values depend on mode of ignition. Gas phase ignition gives a more dimensionally consisten
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