1.1 This test method describes a laboratory procedure for the evaluation of asbestos fiber by measuring the rate of drainage under suction, of an asbestos-cement mixture.

1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are provided for information only.

1.3 This standard does not purport to address all of the safety problems 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. See 7.4.2 and 8.1 for specific hazard warnings.