1.1 本试验方法涵盖了在规定的预处理、温度和试验机速度条件下进行试验时玻璃纤维管纵向拉伸性能的测定。玻璃纤维增强热固性树脂管（RTRP）和玻璃纤维增强聚合物砂浆管（RPMP）都是玻璃纤维管。 附注1: 就本标准而言，聚合物不包括天然聚合物。 1.2 该测试方法通常限于管径为6英寸。（150毫米）或更小。如果所需设备可用，则测试较大尺寸。 1.3 以英寸-磅单位表示的值应被视为标准。括号中给出的值仅供参考。 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。 附注2: 没有已知的与该标准相当的ISO。 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====== 4.1 拉伸性能包括弹性模量、屈服应力、超过屈服点的伸长率、拉伸强度、断裂伸长率和能量吸收。具有低延展性的材料不一定表现出屈服点。允许使用几个温度、湿度、时间或其他变量水平下的应力-应变数据来提供材料行为的合理准确指示。 4.2 张力测试可能为研究和开发、工程设计、质量控制、规范下的验收或拒绝以及特殊目的（ 附注3 ).对于与标准测试的负载-时间尺度差异很大的应用，这些测试不能被认为是重要的（ 附注4 ).此类应用需要更合适的测试，例如冲击、蠕变和疲劳。 附注3: 应当认识到，材料的制备方法是影响在测试材料中获得的结果的许多变量之一。因此，当需要对材料本身进行比较测试时，必须非常小心地确保所有样品都以完全相同的方式制备；同样，对于任何给定系列样本的裁判或比较试验，必须注意确保制备、处理和操作细节的最大程度的一致性。 附注4: 玻璃纤维增强塑料为设计和生产对载荷有明显不同响应的产品提供了广泛的机会，即使产品的基本几何形状相似。例如，管状产品可以被设计成提供对扭转载荷的最大阻力，但是如果在拉伸或内部压力载荷下测试，这种产品可能会产生扭曲或弯曲。在一般现场使用的管道的情况下，必须在一定程度上抵抗内部压力以及拉伸、压缩、扭转和弯曲载荷。通过设计，不同的管道生产商选择提供对这种应力条件具有不同阻力平衡的产品。因此，买方和卖方对该测试方法相对于预期用途的重要性有清晰的理解和一致是很重要的。

1.1 This test method covers the determination of the comparative longitudinal tensile properties of fiberglass pipe when tested under defined conditions of pretreatment, temperature, and testing machine speed. Both glass-fiber-reinforced thermosetting-resin pipe (RTRP) and glass-fiber-reinforced polymer mortar pipe (RPMP) are fiberglass pipes. Note 1: For the purposes of this standard, polymer does not include natural polymer. 1.2 This test method is generally limited to pipe diameter of 6 in. (150 mm) or smaller. Test larger sizes if required apparatus is available. 1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information purposes only. 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. Note 2: There is no known ISO equivalent to this standard. 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 ====== 4.1 Tensile properties include modulus of elasticity, yield stress, elongation beyond yield point, tensile strength, elongation at break, and energy absorption. Materials possessing a low order of ductility do not necessarily exhibit a yield point. It is permissible to use stress-strain data at several levels of temperature, humidity, time, or other variables to furnish reasonably accurate indications of the behavior of the material. 4.2 Tension tests potentially provide data for research and development, engineering design, quality control, acceptance or rejection under specifications, and for special purposes ( Note 3 ). The tests cannot be considered significant for applications differing widely from the load-time scale of the standard test ( Note 4 ). Such applications require more suitable tests, such as impact, creep, and fatigue. Note 3: It is realized that the method of preparation of a material is one of the many variables that affect the results obtained in testing a material. Hence, when comparative tests of materials per se are desired, the greatest care must be exercised to ensure that all samples are prepared in exactly the same way; similarly, for referee or comparative tests of any given series of specimens, care must be taken to secure the maximum degree of uniformity in details of preparation, treatment, and handling. Note 4: Reinforcements of plastics with glass fiber offer wide opportunities for designing and producing products with markedly different responses to loading even when the basic geometry of the product is similar. For example, a tubular product may be designed to give maximum resistance to torsion loading, but such a product might develop a twist or bow if tested in tension or under internal pressure loading. In the case of pipe for general field use, internal pressure, as well as loads in tension, compression, torsion, and flexure must be resisted to some degree. Different pipe producers have chosen, by design, to offer products having different balances of resistance to such stressing conditions. As a result, it is important that the purchaser and the seller both have a clear understanding and agreement on the significance of this test method relative to the intended use.