1.1 This test method covers the determination of the cellular content of asbestos-cement products. Refer to Note 1 and Note 2. 1.2 Before this test method can be used for the determination of other organic substances in asbestos-cement, it must be ascertained that accurate results can be obtained by correlation trials with known concentrations of the organic substances in question present in samples of asbestos-cement.1.3 The values stated in SI units are to be regarded as the