Standard Test Method for Folding Endurance of Paper by the Schopper Tester1
This preferred is issued beneath the fixed designation d 643; the wide variety right now following the designation suggests the 12 months of authentic adoption or, within the case of revision, the 12 months of closing revision. A variety of in parentheses shows the 12 months of final reapproval. A superscript epsilon (e) shows a piece of writing trade because the last revision or reapproval.
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You can also get ASTM D 642 – 00 International standard
