1.1This test method covers testing sizes of coarse aggregate larger than 19 mm (³/₄in.) for resistance to degradation using the Los Angeles testing machine (Note 1).

Note 1:A procedure for testing coarse aggregate smaller than 37.5 mm (1¹/₂in.) is covered in Test Method C131/C131M.

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

1.3This 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.