1.1 本标准提供了一种定量测试方法，用于在实验室环境中使用干法和湿法制备方法确定液压应用纤维基质产品的比强度。该方法设计用于作为产品质量保证或质量控制的指标测试，或同时满足制造要求。该测试方法并不表示产品在现场的性能。 1.2 单位- 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考，不被视为标准值。 以国际单位制以外的单位报告试验结果不应视为不符合本标准。 1.3 所有观察值和计算值应符合实践中确定的有效数字和舍入准则 D6026 ，除非被本试验方法取代。 1.3.1 用于规定如何在标准中收集/记录和计算数据的程序被视为行业标准。此外，它们代表了通常应保留的有效数字。使用的程序不考虑材料变化、获取数据的目的、特殊目的研究或用户目标的任何考虑因素； 通常的做法是增加或减少报告数据的有效位数，以与这些考虑因素相称。考虑工程数据分析方法中使用的有效数字超出了这些测试方法的范围。 1.4 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。 1.5 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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 比强度是衡量纤维基质产品承受拉力机施加的力的能力的一种指标，有助于理解该指标，以生产优质产品。比强度通常与基体密度、纤维质量、纤维长度和化学性质有关，可作为质量保证或质量控制的测量，或同时满足这两个要求。 5.2 由于产品化学成分的变化，该方法可能不适用于所有液压应用的纤维基质产品。 注1: 本标准产生的结果的质量取决于执行该标准的人员的能力，以及所用设备和设施的适用性。 符合实践标准的机构 D3740 通常认为能够胜任和客观的测试/采样/检查等。本标准的用户应注意遵守惯例 D3740 本身并不能保证可靠的结果。可靠的结果取决于许多因素；实践 D3740 提供了一种评估其中一些因素的方法。

1.1 This standard provides a quantitative test method to determine the specific strength of hydraulically applied fiber matrix products using dry and wet preparation methods in a laboratory setting. This method is designed for use as an index test for product quality assurance or quality control, or both to comply with manufacturing requirements. This test method is not indicative of product performance in the field. 1.2 Units— The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information only and are not considered standard. Reporting of test results in units other than SI shall not be regarded as nonconformance with this standard. 1.3 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026 , unless superseded by this test method. 1.3.1 The procedures used to specify how data are collected/recorded and calculated in the standard are regarded as the industry standard. In addition, they are representative of the significant digits that generally should be retained. The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for the user’s objectives; and it is common practice to increase or reduce significant digits of reported data to be commensurate with these considerations. It is beyond the scope of these test methods to consider significant digits used in analysis methods for engineering data. 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 Specific strength is a measure of the ability of a fiber matrix product to withstand force applied by a tensile machine and is useful to understand in order to produce quality products. Specific strength is frequently related to the matrix density, fiber quality, fiber length and chemistry and can be used as a measurement for quality assurance or quality control, or both requirements. 5.2 This method may not be applicable to all hydraulically applied fiber matrix products due to variations in product chemistry. Note 1: The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance with Practice D3740 does not in itself assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors.