ASTM D643-97(2007) - 1.12.2007
 
1. Scope

1.1 This test 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.

1.2 The procedure for the M.I.T.-type apparatus is given in Test Method D 2176.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

 
2. Referenced Documents

D685-22

Standard Practice for Conditioning Paper and Paper Products for Testing

D585-97

Standard Practice for Sampling and Accepting a Single Lot of Paper, Paperboard, Fiberboard, and Related Product

D776-92(2001)

Standard Test Method for Determination of Effect of Dry Heat on Properties of Paper and Board (Withdrawn 2009)

D1968-22

Standard Terminology Relating to Paper and Paper Products

D2176-26

Standard Test Method for Folding Endurance of Paper and Plastics Film by the M.I.T. Tester

D4714-96(2001)

Standard Test Method for Determination of Effect of Moist Heat (50% Relative Humidity and 90°C) on Properties of Paper and Board

E122-17(2022)

Standard Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process

ISO 5626

Paper Determination of Folding Endurance