1.1本试验方法涵盖了确定漆刷丝弯曲时出现的断裂数量的程序。 1.2本方法仅适用于纵向横截面尺寸一致的单丝，通常称为 “ 数量 ” 细丝。 1.3导出的值以断裂纤维的百分比表示。例如，测试的18根灯丝中有2根断裂= 或11%。 1.4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。 1.5 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和健康实践，并确定监管限制的适用性。 ====意义和用途====== 该方法旨在在制造前评估灯丝在漆刷中的适用性。灯丝抗断裂性非常重要，因为漆刷在喷漆过程中会弯曲或弯曲，使用时灯丝必须不会永久变形。

1.1 This test method covers a procedure for determining the number of fractures present when paintbrush filaments are bent. 1.2 This method is applicable only to monofilaments with consistent longitudinal cross sectional dimensions commonly referred to as “ level ” filaments. 1.3 The values derived are in percent fractured filaments. For example, 2 fractured out of 18 filaments tested = or 11 %. 1.4 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. 1.5 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. ====== Significance And Use ====== This method is intended to evaluate filaments for suitability of use in paintbrushes prior to manufacture. Filament fracture resistance is very important because paintbrushes are bent or flexed during painting and it is necessary that the filaments are not permanently deformed with usage.