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In 1977 ASTM Subcommittee D19.12 (currently ASTM Committee D-34 on Waste Disposal) was organized to develop standard test methods for the evaluation of hazardous waste. A standard leach test was the first test that needed to be identified. The development of this standard leach test involved a two phase testing program. The phase one testing program included 21 laboratories testing six waste streams for three parameters. The phase one program identified the areas in the proposed test method that were responsible for the very high variability found during the testing program. The second phase testing program was designed and carried out to address those areas of variability. The proposed test method was adopted as a standard in June 1980.
leaching, analyzing, extraction, leachate, leach test
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