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Paint and Coatings Industry Standards
D6957 Standard Practice for Measuring Curl in Paint Brush Filling Material
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 given in inch-pound units are to be regarded as the standard as this is the dominant measurement system used in the paint brush industry. 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 and health practices and determine the applicability of regulatory limitations prior to use.
