1.1 这是一种拉伸冲击试验方法，在特定应变率下产生足够的拉伸冲击能量，以使对接熔融塑料管的标准拉伸冲击试样断裂。它用于确定现场或鉴定测试中制造的PE熔接对接接头的质量。它还可用于确定PE材料的最佳对接熔焊参数。 1.2 本试验方法适用于测试直径为2.37英寸的管道试样。（60.3 mm）及以上，壁厚0.25 in。（6.3 mm）及以上。 注1: 该试验方法类似于ISO 13953。 1.3 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.4 本试验方法可单独使用或与其他试验方法一起使用，以评估对接熔合接头的质量。 当本试验在实验室温度下进行时 9.2 ，并结合规范中的高温、恒压试验 D3035 ，将验证PE对接熔合接头的短期和长期强度。 1.5 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。 1.6 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 本试验方法旨在向对接熔融塑料管试样施加拉伸冲击能量，记录试样失效的能量，并绘制拉伸试验的载荷随时间的曲线。 屈服和断裂时记录的能量以及断裂模式（脆性或韧性）被用作评估对接熔合接头的标准。力/时间曲线的评估不仅可以比较不同的对接熔合参数，还可以评估试样的断裂模式，以确定接头完整性。通常将每个试片的测试结果与未熔合的母管材料加工的试片的测试结果进行比较。 4.1.1 这些数据也有助于定性表征和研究与开发。对于许多材料，可能有一个规范要求使用该试验方法，但在遵守规范时，一些程序修改优先。因此，建议在使用本试验方法之前参考该材料规范。 4.2 拉伸性能可能因试样制备、测试速度和环境而异。 因此，如果需要精确的比较结果，则必须仔细控制这些因素。 4.2.1 人们认识到，如果不测试材料的制备方法，就无法测试该材料。因此，当需要对材料本身进行比较试验时，必须非常小心，以确保以完全相同的方式制备所有试样，除非试验包括试样制备的影响。虽然必须注意确保制备、处理和处理细节的最大一致性，但在开始测试之前，将试样的准确尺寸输入数据采集系统（DAS）。

1.1 This is a tensile impact test method that develops enough tensile impact energy at specific rates of strain to rupture standard tensile impact specimens of butt fused plastic pipe. It is used to determine the quality of PE butt fusion joints made in the field or in qualification testing. It can also be used to determine the optimum butt fusion joining parameters of PE materials. 1.2 This test method is applicable for testing pipe specimens with a diameter 2.37 in. (60.3 mm) and larger with a wall thickness from 0.25 in. (6.3 mm) and larger. Note 1: This test method is similar to ISO 13953. 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.4 This test method may be used alone or together with other test methods, to evaluate the quality of the butt fused joints. When this test, conducted at laboratory temperatures per 9.2 , is combined with the elevated temperature, sustained pressure test in Specification D3035 , both the short term and long term strength of the PE butt fusion joint will be verified. 1.5 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. 1.6 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 This test method is designed to impart tensile impact energy to a butt fused plastic pipe specimen, record the energy to fail the specimen and plot the load over time curve of the tensile test. Energy recorded at yield and rupture and the rupture mode (brittle or ductile) are used as criteria in the evaluation of the butt fusion joint. The evaluation of the force/time curve not only makes it possible to compare different butt fusion parameters but also to evaluate the rupture mode of the specimen to determine joint integrity. Each coupon's test results will usually be compared to test results for coupons machined from the base pipe material, un-fused. 4.1.1 These data are also useful for qualitative characterization and for research and development. For many materials, there may be a specification that requires the use of this test method, but with some procedural modifications that take precedence when adhering to the specification. Therefore, it is advisable to refer to that material specification before using this test method. 4.2 Tensile properties may vary with specimen preparation and with speed and environment of testing. Consequently, where precise comparative results are desired, these factors must be carefully controlled. 4.2.1 It is realized that a material cannot be tested without also testing the method of preparation of that material. Hence, when comparative tests of materials per se are desired, the greatest care must be exercised to ensure that all specimens are prepared in exactly the same way, unless the test is to include the effects of specimen preparation. While care must be taken to secure the maximum degree of uniformity in details of preparation, treatment, and handling, the exact dimensions of the test specimens are entered into the Data Acquisition System (DAS) before initiating the test.