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
produce a surface char, a layer of adherent ash, or those that are composites or laminates do not attain a steady-state release rate. Thermally thin specimens, that is, specimens whose unexposed surface changes temperature during period of test, will not attain a steady-state release rate. Therefore, release rates for a given material will depend, for example, on how the material is used, its thickness, and the method of mounting.
Heat-release values are for the specific specimen size (exposed
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11/02 17:54