Original standard ASTM C97/C97M-18 in PDF full version. Additional info + preview on request
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Original standard ASTM C970-87 (2006) in PDF full version. Additional info + preview on request
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Original standard ASTM C971-82 (1992) in PDF full version. Additional info + preview on request
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Original standard ASTM C972-18 in PDF full version. Additional info + preview on request
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Original standard ASTM C973-87 (2020) in PDF full version. Additional info + preview on request
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Original standard ASTM C974-87 (2020) in PDF full version. Additional info + preview on request
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