Folding endurance of paper (Schopper type tester) Test Method T 423 cm-07
This method describes the use of the Schopper type of folding apparatus. It is suitable for papers having a thickness of 0.25 mm (0.010 in.) or less.
The procedure for the MIT type apparatus, which may be used for papers of any thickness, is described in TAPPI T 511 “Folding Endurance of Paper (MIT Tester).”
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