1.1 本试验方法描述了用球爆裂强度测试仪测量具有高极限伸长率的纺织品或服装的爆裂强度。 1.2 以国际单位制或英寸-磅单位表示的数值应单独视为标准值。每个系统中规定的值不一定是精确的等价物；因此，为确保符合本标准，每个系统应独立使用，且两个系统的值不得组合。 注1: 关于使用液压试验机测量爆裂强度，请参阅试验方法 D3786 . 注2: 恒定横移率（CRT）机器和恒定延伸率（CRE）机器提供了不同的结果。 当使用CRE设备时，请参阅测试方法 D6797 . 1.3 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。 1.4 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 纺织工业正在使用这种测定纺织品球形爆裂强度的试验方法来评估各种织物。 5.2 使用测试方法中的程序获得的测试结果 D3787 与实际表现不相关。试验方法 D3787 由于该方法在验收测试行业中已广泛使用，因此被认为适用于商业运输纺织品织物的耐破强度验收测试。如果由于买方和卖方在使用试验方法时报告的数值不同而产生分歧 D3787 对于验收测试，买方实验室和卖方实验室之间的统计偏差（如有）应根据从被评估类型材料的一个样本中随机抽取的测试样本进行比较来确定。 注3: 根据本试验方法的指示，通过夹紧针织物来防止针织物磨损时产生的力传递和强度。 5.2.1 如果两个（或更多）实验室的报告测试结果之间存在实际意义上的差异，则应进行比较测试，以确定它们之间是否存在统计偏差。使用的测试样品应尽可能均匀，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实验室进行测试。具有既定测试值的其他材料可用于此目的。两个实验室的测试结果应在测试系列之前选择的概率水平上，使用未配对数据的统计测试进行比较。 如果发现偏差，必须确定并纠正原因，或者考虑到已知偏差，调整未来的测试结果。

1.1 This test method describes the measurement for bursting strength with a ball burst strength tester of textiles or garments that exhibit a high degree of ultimate elongation. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. Note 1: For the measurement of bursting strength with a hydraulic testing machine, refer to Test Method D3786 . Note 2: Constant Rate of Traverse (CRT) machines and Constant Rate of Extension (CRE) machines have been shown to provide different results. When using a CRE device, refer to Test Method D6797 . 1.3 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. 1.4 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 for the determination of ball bursting strength of textiles is being used by the textile industry for the evaluation of a wide variety of fabrics. 5.2 Test results obtained using the procedures in Test Method D3787 have not been correlated with actual performance. Test Method D3787 is considered satisfactory for acceptance testing of commercial shipments of textiles fabrics for bursting strength since the method has been used extensively in the trade for acceptance testing. In cases of disagreement arising from differences in values reported by the purchaser and the seller when using Test Method D3787 for acceptance testing, the statistical bias, if any, between the laboratory of the purchaser and the laboratory of the seller should be determined with comparison based on testing specimens randomly drawn from one sample of material of the type being evaluated. Note 3: The kind of force transfer and strength that occur when knitted goods are worn is prevented by clamping them as directed in this test method. 5.2.1 If there are differences of practical significance between reported test results for two (or more) laboratories, comparative tests should be performed to determine if there is a statistical bias between them. The test samples used should be as homogeneous as possible, drawn from the material from which the disparate test results were obtained, and randomly assigned in equal numbers to the laboratories for testing. Other materials with established test values may be used for this purpose. 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 the cause must be determined and corrected or future test results must be adjusted in consideration of known bias.