ASTM F497 PDF

Standard Practice for Use of the Electric and Electronic Typewriter as a Test Instrument (Withdrawn 2015)

ASTM F497 – Standard Practice for Use of the Electric and Electronic Typewriter as a Test Instrument (Withdrawn 2015)

1.1 This practice covers standardized procedures utilizing the electric or electronic typewriter as an imaging device for measuring theperformance properties of carbonless paper, carbon paper, inked ribbon, andsimilar image producing products.

Note 1 – Electric and electronic typewriters covered by this practice have a full-character type element. Examples of such elements are type bar, ball,thimble, and daisy wheel.

1.2 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.

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