Test Method for Asbestos in Soil was approved by ASTM committee.February 6, 2013 -
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.
Test Method for Asbestos in Soil Approved by ASTM Air Quality Committee
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Press release date: January 29, 2013
W. CONSHOHOCKEN, Pa.–A new ASTM International standard is focused exclusively on testing soil for asbestos. ASTM D7521, Test Method for Determination of Asbestos in Soil, was developed by Subcommittee D22.07 on Sampling and Analysis of Asbestos, part of ASTM International Committee D22 on Air Quality.
According to Alan Segrave, division manager, laboratory services, Bureau Veritas, and an ASTM D22 member, many materials that are analyzed for asbestos are man-made and contain known types and quantities of asbestos. Testing soil presents a unique set of challenges.
“For soils, the asbestos is not typically homogeneous, and the soil matrix tends to mask lower levels of asbestos,” says Segrave. “A method was needed to address soils where an accurate assessment of what is in the sample could be determined.” ASTM D7521 covers procedures to:
• Identify asbestos in soil;
• Provide an estimate of the concentration of asbestos in the sampled soil; and
• Provide a concentration of asbestos reported as the number of asbestos structures per gram of sample.
“ASTM D7521 can be used for property transfers (Phase I assessments), brownfields or Superfund sites for pre-cleanup and post-cleanup assessment, initial surveys of soils and downstream migration studies of soils,” says Segrave. “Anyone who needs to test soils for asbestos will benefit from ASTM D7521. Laboratories will be able to test the samples the same way using the procedure, providing consistency and interpretation of results.” Regulatory bodies may specify the use of the test method to ensure compliance for applicable local, state and federal laws regarding asbestos.
Segrave notes that all interested parties are invited to participate in the ongoing development of ASTM D7521. “We are open to collaboration with others to improve the method or to use the method for other areas of interest, such as risk assessment,” says Segrave. “Now that we have a method to determine asbestos in soil, this opens up the door for other potential research.”
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ASTM Committee D22 Next Meeting: April 14-17, April Committee Week, Indianapolis, Ind.
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