1.1 这些试验方法包括由连续长丝碳和石墨纱线、粗纱和丝束制成的树脂浸渍和固结试样的制备和拉伸试验，以确定其拉伸性能。 1.2 这些试验方法还包括纱线、粗纱或丝束单位长度密度和质量的测定，为拉伸性能计算提供补充数据。 1.3 这些测试方法包括上浆去除程序，以提供用于密度测量的优选的脱浆纤维样品。该程序也可用于确定上浆重量百分比。 1.4 这些试验方法包括测定碳或石墨纤维吸湿重量百分比的程序。 1.5 以国际单位制表示的数值应视为标准。本标准中不包括其他计量单位。 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）。 本标准的使用者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 通过这些测试方法确定的性能在材料规范、资质、数据库生成、认证、研究和开发方面具有价值。 5.2 这些测试方法旨在测试专门开发用于高级复合材料结构中增强剂的纤维。浸渍和固结纤维的测试结果应代表按预期使用时材料中可用的强度和模量。 不同树脂体系中纤维的性能可能有很大差异，因此使用这些测试方法的结果与复合材料测试之间的相关性可能并不总是能够获得。 5.3 试验结果的再现性取决于对所有试验条件的精确控制。树脂的类型、含量和分布、固化工艺、细丝排列、在试验机中的夹持以及在试验机上的排列具有特殊的重要性。 5.4 测量的纤维强度并不是唯一的数量，测试结果在很大程度上取决于所使用的测试方法。因此，本文所述的测试方法不一定会给出与单丝、干纤维、复合层压板或复合层压板相同的平均强度或标准偏差。

1.1 These test methods cover the preparation and tensile testing of resin-impregnated and consolidated test specimens made from continuous filament carbon and graphite yarns, rovings, and tows to determine their tensile properties. 1.2 These test methods also cover the determination of the density and mass per unit length of the yarn, roving, or tow to provide supplementary data for tensile property calculation. 1.3 These test methods include a procedure for sizing removal to provide the preferred desized fiber samples for density measurement. This procedure may also be used to determine the weight percent sizing. 1.4 These test methods include a procedure for determining the weight percent moisture adsorption of carbon or graphite fiber. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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 The properties determined by these test methods are of value in material specifications, qualifications, data base generation, certification, research, and development. 5.2 These test methods are intended for the testing of fibers that have been specifically developed for use as reinforcing agents in advanced composite structures. The test results of an impregnated and consolidated fiber should be representative of the strength and modulus that are available in the material when used as intended. The performance of fibers in different resin systems can vary significantly so that correlations between results using these test methods and composite testing may not always be obtained. 5.3 The reproducibility of test results is dependent upon precise control over all test conditions. Resin type, content and distribution, curing process, filament alignment, gripping in the testing machine, and alignment in the testing machine are of special importance. 5.4 The measured strengths of fibers are not unique quantities and test results are strongly dependent on the test methods used. Therefore the test method described here will not necessarily give the same mean strengths or standard deviations as those obtained from single filaments, dry fibers, composite laminas, or composite laminates.