This test method can be used in new applications evaluations, product development, and specification acceptance procedures.

1.1 This test method describes a typewriter test that compares the cleanliness properties of carbon papers (one-time or multiple use) and is based on resistance to feed roll marking the smear of carbon images.

1.2 This test method also describes how to compare the cleanliness properties of the backs of carbon papers.

1.3 This standard does not purport to address all of the safety problems, 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.