Original standard ASTM D1421-68 in PDF full version. Additional info + preview on request
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Original standard ASTM D1422/D1422M-13 (2020) in PDF full version. Additional info + preview on request
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Original standard ASTM D1423/D1423M-16 (2022) in PDF full version. Additional info + preview on request
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Original standard ASTM D1424-21 in PDF full version. Additional info + preview on request
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Original standard ASTM D1425/D1425M-14 (2020) in PDF full version. Additional info + preview on request
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Original standard ASTM D1426-15 (2021)e1 in PDF full version. Additional info + preview on request
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