ASTM D2947

Full Name

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