1.1 本规程描述了合成纤维长丝卷曲度的测量程序。 1.2 本规程适用于2至5英寸的灯丝。（50.8至127 mm）。 1.3 本规程适用于锥形灯丝或水平灯丝。 1.4 本规程适用于松散填充材料和从刷子上移除的材料。 1.5 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.6 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 3.1 对于电刷的制造和性能而言，具有最小卷曲度的灯丝非常重要。

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. ====== Significance And Use ====== 3.1 It is important for the manufacturing and performance of a brush to have filaments with minimal curl.