ASTM C1120-98(2006)

1.1 This test method covers the procedure for determining the fines content of asbestos fibers by washing with water on a specified sieve.

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

1.3 Warning-Breathing of asbestos dust is hazardous. Asbestos and asbestos products present demonstrated health risks for users and for those with whom they come into contact. In addition to other precautions, when working with asbestos-cement products, minimize the dust that results. For information on the safe use of chrysoltile asbestos, refer to "Safe Use of Chrysotile Asbestos: A Manual on Preventive and Control Measures."

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. For a specific hazards warning, see .

The wash test gives a rapid and simple evaluation of the fines content.

The equipment required and the technique followed are both simple and undemanding.

The fines content obtained by this test method approximates the equivalent screen classification obtained by Test Methods C 1121 and D 2589.