5.1 As a comparative test, this practice can be used to determine the damage caused by creasing paper, that is, damage to paper, coatings or images affixed to the paper and the loss of image quality and legibility that can result from creasing.

1.1 This practice describes a procedure for hard creasing paper in a uniform and reproducible manner.

1.2 The crease is positioned across the image and the amount of image degradion is determined.

1.3 The effect of creasing on the paper surface can also be determined.

1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.5 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.