1.1 This test method details the procedure for determining the aggregate spread rates in approximately 0.33-m (1-ft) transverse increments. 1.2 The values stated in SI units are to be regarded as standard. The inch-pound units shown 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 s