1.1 This test method covers the determination of the per-
centages of flat particles, elongated particles, or flat and
elongated particles in coarse aggregates. Two procedures,
Method A and Method B, are presented in this standard.
Method A is a reflection of the original procedure as developed
prior to Superpave and is intended for all non-Superpave
applications. Method B is a comparison of the maximum
particle dimension to the minimum particle dimension and is
intended for use with Superpave specifications.
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.
1.2.1 Exception (regarding sieves, per Specification E11)—
The values stated in SI units shall be considered standard for
the dimensions of the wire cloth openings and the diameter of
the wires used in the wire cloth. When sieve mesh sizes are
referenced, the alternate inch-pound designations are provided
for information purposes and enclosed in parentheses.
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 appro-
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
1.4 This standard was developed in accor-
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.