ASTM E1386用溶剂萃取法分离和浓缩从火烧瓦砾样品中获取的可燃液体残渣的标准规范
日期:2012-02-08 09:34
may not be useful for the extraction of some extremely volatile ignitable liquids, which may evaporate during the concentration step.
This is a destructive technique. Whenever possible, this technique should only be used when a representative portion of the sample can be reserved for reanalysis. Those portions of the sample subjected to this procedure may not be suitable for resampling. If destruction of the sample is an issue, consider using passive headspace concentration as described in Prac
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