1.1 This test method covers the operation of the Turner and Newall (T and N) wet sieving classifier for asbestos, and a procedure for the determination of fiber length distribution and fines (defined in Terminology D 2946) content of milled asbestos fiber (74 m (200 mesh)) sieve described in Specification E 11.1.2 For purposes of estimating length distribution, the test is limited to samples free from excessive quantities of non-fibrous particles or contaminants. Quantities exceeding 0