1.1 This test method covers the appraisal of asbestos fiber groups 4 to 7 in terms of their occupied volumes when immersed in water.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, w