ASTM D2947 – Standard Test Method for Screen Analysis of Asbestos Fibers
This test method covers a dry screen analysis for asbestos fiber by means of a mechanical sieve shaker.
This test method is limited in its application to Group 4 and shorter chrysotile asbestos fiber samples as defined in Test Method D3639. However, some short amphibole asbestos fibers may be suitable for evaluation by this method.
asbestos; fiber; fiber length distribution; Ro-Tap screen; screen analysis; sieving