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1.1 This test method covers a laboratory procedure for the evaluation or comparison of the cleanability of paint brushes, or both, when used with latex paints.

1.2 This test method is applicable to paint brushes up to 100 mm (4 in.) in width and of similar head dimensions as described in Practice D5301.

1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.4 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.

4.1 The final appearance of a paint brush after it has been used and cleaned is related to the ability of the brush to perform consistently upon repeated use. This test method offers a subjective visual criteria that provides a rank order of cleanability of the filaments of a brush after use.