1.1 这些测试方法包括测定织物拉伸量、织物生长和在规定张力和拉伸后全部或部分由弹性纱线编织的织物的织物回收率。 1.2 这些测试方法适用于具有高弹性（大于12%）和良好的低张力恢复性能（织物宽度高达360 g/cm或2 lb/in.）的机织物。经同意，这些试验方法可用于全部或部分由非弹性纱线织成的织物，这些纱线在上述弹性特性范围内表现出极限。 1.3 这些测试方法允许使用纺织工业中常用的两种张力选项； 1.35千克（3磅）和1.8千克（4磅）。包括织物拉伸、织物生长和织物回收的几种计算，当个别规范要求时，可以单独使用。 1.4 这些试验方法不应用于测量试验方法中涵盖的机织物的断裂伸长率 D5035 . 1.5 以国际单位制或英寸-磅单位表示的数值应单独视为标准。在文本中，英寸-磅单位显示在括号中。每个系统中规定的值不是精确的等价物；因此，每个系统应相互独立使用。 合并两个系统的值可能会导致不符合规范。 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====== 5.1 这些测试方法用于确定使用测试织物制成的服装在使用过程中可能表现出的拉伸、生长和恢复性能。 5.2 不建议将这些测试方法用于商业装运的验收测试，因为已知实验室之间的精度较差。 5.2.1 如果两个或多个实验室的报告测试结果之间存在实际意义上的差异，则这些实验室应使用主管统计协助进行比较测试，以确定它们之间是否存在统计偏差。 使用尽可能同质的测试样品，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。应使用未配对数据的统计测试，在测试系列之前选择的概率水平上，比较两个实验室的测试结果。如果发现偏差，必须找到并纠正其原因，或者考虑到已知偏差，必须调整该材料的未来测试结果。 5.3 一些弹性织物仅在填充方向使用弹性纱线。 因此，对于这些织物，只需要测试填充方向。

1.1 These test methods cover the determination of the amount of fabric stretch, fabric growth, and fabric recovery of fabrics woven in whole or in part from stretch yarns after a specified tension and extension. 1.2 These test methods are intended for use with woven fabrics exhibiting high stretch (greater than 12 %) and good recovery properties from low tension (up to 360 g/cm or 2 lb/in. of fabric width). When agreed upon, these test methods can be used for fabrics woven in whole or in part from non-stretch yarns that exhibit limits within the stretch characteristics shown above. 1.3 These test methods allow the use of two tension options commonly used in the textile industry; 1.35 kg (3 lb) and 1.8 kg (4 lb). Several calculations are included for fabric stretch, fabric growth and fabric recovery, and can be used individually when required by individual specifications. 1.4 These test methods should not be used to measure breaking elongation of woven fabrics which is covered in Test Method D5035 . 1.5 The values stated in either SI units or inch-pound units are to be regarded separately as the standard. Within the text, the inch-pound units are shown in parentheses. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. 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 ====== 5.1 These test methods are used to determine the stretch, growth and recovery properties that garments made with the fabric tested may be expected to exhibit during use. 5.2 These test methods is not recommended for acceptance testing of commercial shipments because the between-laboratory precision is known to be poor. 5.2.1 If there are differences of practical significance between reported test results for two or more laboratories, comparative tests should be performed by those laboratories to determine if there is a statistical bias between them, using competent statistical assistance. Use test samples that are as homogeneous as possible, are drawn from the material from which the disparate test results were obtained, and are randomly assigned in equal numbers 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 test results for that material must be adjusted in consideration of the known bias. 5.3 Some stretch fabrics are constructed with stretch yarns in only the filling direction. Consequently, for those fabrics, only the filling direction needs to be tested.