ASTM D452-91(2008)

This test method is used to determine the grading of materials used as surfacing. The results are used to determine compliance of the particle size distribution with applicable specification requirements.

1.1 This test method covers the determination of the particle size distribution of surfacing material, other than mineral granules, such as sand, mica, talc, or other powdered or flaky mineral particles, used on both sides of “smooth” roll roofing and on the reverse side of asphalt shingles and mineral-surfaced roll roofing.

1.2 The values stated in SI units are to be regarded as standard. The values in parentheses are mathematical conversions to inch-pound units that are provide 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 responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.