Sampling and conditioning are equally as important as testing. The reliability of the test results depends primarily upon how well the specimens tested represent the true character and condition of the lot of asbestos fiber. Much care and effort are required to be sure that all the sampling operations are systematic or at random and are representative. Failure to provide a test specimen that accurately represents the lot from which it is drawn will produce misleading test results regardless of the accuracy and the precision of the test method.

1.1 This test method covers procedures for taking a composite or a master composite sample, at the mine or at the factory or from a consignment, of a lot of milled asbestos fiber used as raw material in the chrysotile asbestos industry, conditioning this sample and reducing it in quantity through a series of steps to provide a relatively small test specimen of loose asbestos fibers, representative of the lot and suitable for the determination of a single property.

1.2 This sampling method is suitable for taking test specimens of chrysotile asbestos for Test Methods: C1119, C1120, C1121, C1122, C1123, C1124, C1125, C1162, D1118, D2589, D2752, D2946, D2947, D2985, D2987, D3639, D3752 and D3880.

1.3 Test Method D3879 covers the sampling of amphibole asbestos fibers.

1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. ^REFERENCE:

ASTM Standards:

C1119 Test Method for Vacuum Drainage of Asbestos-Cement Mixes

C1120 Test Method for Wash Test of Asbestos

C1121 Test Method for Turner and Newall (T and N) Wet-Length Classification of Asbestos

C1122 Test Method for Wet Volume of Asbestos

C1123 Test Method for Compressibility and Recovery of Asbestos

C1124 Test Method for Kerosene Retention of Asbestos

C1125 Test Method for Penetration Index of Asbestos

C1162 Test Method for Loose Density of Asbestos

D1118 Test Method for Magnetic Rating of Asbestos Fiber and Asbestos Textiles

D2589 Test Method for McNett Wet Classification of Dual Asbestos Fiber

D2752 Test Methods for Air Permeability of Asbestos Fibers

D2946 Terminology for Asbestos and Asbestos–Cement Products

D2947 Test Method for Screen Analysis of Asbestos Fibers

D2985 Test Method for Color of Asbestos

D2987 Test Method for Moisture Content of Asbestos Fiber

D3639 Test Method for Classification of Asbestos by Quebec Standard Test

D3752 Test Method for Strength Imparted by Asbestos to a Cementitious Matrix

D3879 Test Method for Sampling Amphibole Asbestos (Withdrawn)

D3880 Test Method for Asbestos Strength Units

2.2 ASTM Adjuncts:

Laboratory Filter Drawings