1.1 该测试方法包括通过测量在预定容量下工作的金属刀片将试样推入预定宽度的槽中所需的力来确定织物的刚度。 附注1: 有关测试刚度的其他方法，请参阅测试方法 D1388 , D4032 ，和 D5732 . 1.2 本试验方法适用于硬度不超过穿透光束装置能力的任何纤维含量的织物。样品可以取自织物、卷或最终产品。 1.3 以SI单位表示的值将被视为标准值。SI单位后括号中给出的值仅供参考，不被视为标准值。 1.4 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。 1.5 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》中确立的国际公认的标准化原则制定的。 ======意义和用途====== 5.1 认为该检测方法对于质量控制检测是令人满意的。 5.2 如果两个实验室报告的检测结果之间存在具有实际意义的差异，则应使用合格的统计学辅助进行比较试验，以确定它们之间是否存在统计学偏倚。至少，使用尽可能均匀的测试样品，从获得不同测试结果的材料中提取，并以相同数量随机分配给每个实验室进行测试。两个实验室的检测结果应在检测系列之前选择的概率水平上，使用不成对数据的统计检验进行比较。如果发现偏差，要么必须找到并纠正其原因，要么必须考虑已知偏差调整源材料的未来结果。 5.3 织物的刚度与其在进一步加工和使用中的抗弯曲性有关。它测量纤维和纱线的弯曲能力、单个纤维和纱线相对于其位移的内聚力以及将它们固定在适当位置的粘合剂或整理剂。

1.1 This test method covers the determination of the stiffness of fabrics by measuring the force required to push a specimen into a slot of predetermined width with a metal blade working at a predetermined capacity. Note 1: For other methods for testing stiffness, refer to Test Methods D1388 , D4032 , and D5732 . 1.2 This test method is applicable to fabrics of any fiber content whose stiffness does not exceed the capacity of the Penetrator Beam apparatus. Specimens can be taken from fabrics, rolls, or end products. 1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 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 ====== 5.1 This test method is considered satisfactory for quality control testing. 5.2 If there are differences of practical significance between reported test results for two laboratories, comparative tests should be performed to determine if there is a statistical bias between them, using competent statistical assistance. As a minimum, use test samples as homogeneous as possible, drawn from the material from which the disparate test results were obtained, and randomly assigned in equal number to each laboratory for testing. The test results from the two laboratories should be compared using a statistical test for unpaired data, at a probability level chosen prior to the testing series. If a bias is found, either its cause must be found and corrected, or future results for the source material must be adjusted in consideration of the known bias. 5.3 The stiffness of fabric relates to its resistance to bending with further processing and use. It measures the fiber and yarn bending capabilities, the cohesion of individual fibers and yarns relative to their displacement and binders or finishes that hold them in place.