ASTM D7521, Test Method for Determination of Asbestos in Soil, covers procedures through which to identify asbestos in soil, provide estimate of concentration of asbestos in sampled soil, as well as provide concentration of asbestos reported as number of asbestos structures per gram of sample. This standard was developed by Subcommittee D22.07 on Sampling and Analysis of Asbestos, part of ASTM International Committee D22 on Air Quality.
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