This practice should be used to evaluate performance qualities of correctable film ribbons on a comparative basis under actual and simulated conditions.

This practice is suitable for comparative service evaluation, research, and development. It may also be used for manufacturing quality control.

Users may choose any one test, a series of tests, or all tests, depending on their needs and interests in determining the different characteristics of correctable film ribbons.

1.1 This practice provides information and techniques for evaluating performance qualities of a correctable film ribbon. It can be used to evaluate typewriter ribbons for general office use.

1.2 The values stated in either SI or inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

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.