Original standard ASTM C1667-15 in PDF full version. Additional info + preview on request
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Original standard ASTM C1668-20 in PDF full version. Additional info + preview on request
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Original standard ASTM C167-22 in PDF full version. Additional info + preview on request
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Original standard ASTM C1670/C1670M-21b in PDF full version. Additional info + preview on request
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Original standard ASTM C1671-20a in PDF full version. Additional info + preview on request
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Original standard ASTM C1672-17 in PDF full version. Additional info + preview on request
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