Original standard ASTM C678-75 (1991)e1 in PDF full version. Additional info + preview on request
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Original standard ASTM C679-15 (2022) in PDF full version. Additional info + preview on request
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Original standard ASTM C680-23a in PDF full version. Additional info + preview on request
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Original standard ASTM C681-14 (2019) in PDF full version. Additional info + preview on request
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Original standard ASTM C682-94 in PDF full version. Additional info + preview on request
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Original standard ASTM C683-76 in PDF full version. Additional info + preview on request
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