This specification covers the requirements for design and construction of testing sieves using a medium of woven wire cloth mounted in a frame for use in testing for the classification of materials according to designated particle size (See Note 1 and Note 2)@ and wire cloth@ meeting the specifications of Table 1@ to be designated test grade wire cloth. All subsequent references to wire cloth shall mean test grade wire cloth. Methods for checking testing sieves arid wire cloth for conformance to this specification are included in the annex. NOTE 1??Complete instructions and procedures on the use and calibration of testing sieves are contained in Manual 32.2 Note that sieve analysis results from two testing sieves of the same sieve designation may not?be the same because of the variances in sieve opening permitted by this specification. To minimize?the differences in sieve analysis results@ the use of testing sieves matched on a performance?basis is suggested.?Manual 322?also contains a list of all published ASTM standards on sieve analysis?procedures for specific materials?or industries. This list may be referenced to obtain statements of precision and bias for sieve analysis of specific materials. NOTE 2??For other types of sieves@ see Specification E 323 and Specification E?161. The values stated in SI units shall be considered standard for the dimensions of the wire cloth openings and the diameter of the wires used in the wire cloth. The values stated in inch-pound units shall be considered standard with regard to the sieve frames. The following prccautionary statement refers only to the test method portion@ Annex A?1 @ of this specification: 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.2 Manual on Testing Sieving Methods@ ASTM Manual 32@ ISBN 0-8-31-2495-3. Available from ASTM Headquarters.