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Last Updated: Jun 04, 2025
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ASTM D6957-12(2018)
Standard Practice for Measuring Curl in Paint Brush Filling Material
Standard Practice for Measuring Curl in Paint Brush Filling Material
D6957-12R18
ASTM|D6957-12R18|en-US
Standard Practice for Measuring Curl in Paint Brush Filling Material
Standard
D6957 Standard Practice for Measuring Curl in Paint Brush Filling Material>
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BOS Vol. 06.02 Committee D01
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ASTM International
Significance and Use
3.1 It is important for the manufacturing and performance of a brush to have filaments with minimal curl.
Scope
1.1 This practice describes the procedure for measuring curl in synthetic filament.
1.2 This practice is applicable to filament 2 to 5 in. (50.8 to 127 mm) in length.
1.3 This practice is applicable to tapered filament or level filament.
1.4 This practice is applicable to loose filling material and material removed from a brush.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.