ASTM C871可浸出氯化物,氟化物,硅酸盐及钠离子用绝热材料的化学分析的标准试验方法
日期:2012-02-13 21:46
nsulation specifications that are specific to ESCC allow the use of the same Test Methods C692 and C871 for evaluation of insulation materials. Both specifications require fluoride ions to be included with chloride ions when evaluating the extractable ions.
Chlorides (and fluorides) can be constituents of the insulating material or of the environment, or both. Moisture in the insulation or from the environment can cause chlorides (and fluorides) to migrate through the insulation and concentrate
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