1.1 本试验方法包括在规定的预处理、温度和试验机速度条件下进行试验时，测定玻璃纤维管的比较纵向拉伸性能。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）均为玻璃纤维管。 注1: 就本标准而言，聚合物不包括天然聚合物。 1.2 该试验方法通常限于直径为6英寸的管道。（150 mm）或更小。如果需要的仪器可用，可以测试更大尺寸。 1.3 以英寸-磅为单位的数值应视为标准值。括号中给出的值仅供参考。 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。 注2: 没有已知的ISO等效于本标准。 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====== 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、抗拉强度、断裂伸长率和能量吸收。 具有低延性的材料可能不会表现出屈服点。可能需要不同温度、湿度、时间或其他变量水平的应力应变数据，以合理准确地指示材料的行为。 4.2 拉伸试验可为研究和开发、工程设计、质量控制、规范规定的验收或拒收以及特殊目的提供数据( 附注3 ). 对于与标准测试的负载时间刻度相差很大的应用，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，如冲击、蠕变和疲劳。 注3: 人们认识到，材料的制备方法是影响材料测试结果的众多变量之一。 因此，当需要对材料本身进行比较试验时，必须非常小心，以确保所有样品的制备方式完全相同；同样，对于任何给定系列样本的鉴定或比较试验，必须注意确保在制备、处理和处理细节方面达到最大程度的一致性。 注4: 玻璃纤维增强塑料为设计和生产对载荷反应明显不同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，管状产品的设计可以最大限度地抵抗扭转载荷，但如果在拉伸或内部压力载荷下测试，此类产品可能会产生扭曲或弯曲。 对于一般现场使用的管道，必须在一定程度上抵抗内部压力以及张力、压缩、扭转和弯曲载荷。根据设计，不同的管道生产商选择提供对此类应力条件具有不同阻力平衡的产品。因此，买方和卖方对本试验方法相对于预期用途的重要性有明确的理解和一致意见是很重要的。

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. Larger sizes may be tested 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 may not exhibit a yield point. Stress-strain data at several levels of temperature, humidity, time, or other variables may be needed to furnish reasonably accurate indications of the behavior of the material. 4.2 Tension tests may 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.