1.1 本试验方法涵盖了在短时间内测定热塑性塑料管、管材和配件以及增强热固性管和增强热塑性管对液压的阻力。如果要确定故障模式，则使用程序A来确定试样的爆裂压力。程序B用于确定试样是否符合最低爆裂要求。 注1: 增强热塑性管是一种三层结构，由热塑性芯层组成，其周围缠绕着连续的螺旋增强层。在加强件上施加保护性热塑性覆盖层。对于设计和压力，热塑性芯层和覆盖层不被视为环向应力承载元件。 所有的环向应力都由钢筋层承担。 1.2 本试验方法适用于为质量控制或采购规范制定实验室测试要求。 1.3 以英寸-磅单位表示的值应被视为标准值。括号中给出的值是对国际单位制的数学转换，仅供参考，不被视为标准值。 1.4 本标准并不旨在解决与其使用相关的所有安全问题（如果有的话）。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 本试验方法确定了热塑性塑料管、管材和配件以及增强热固性管和增强热塑性管的短期水力破坏压力。通过这种测试方法获得的数据仅用于预测管道、管子和配件在温度、时间、加载方法和环向应力条件下的行为，这些条件与实际测试中使用的相似。 它们通常不代表热塑性或增强热固性树脂管、管材和配件以及增强热塑性管的长期强度。 4.2 使用该测试方法的采购规范可以规定除中列出的60至70秒之外的最短和最长故障时间 9.1.3 要求中可以列出内部液压或环向应力。 注2: 许多热塑性塑料的爆裂强度因失效时间而异。例如，在65秒和85秒的故障时间之间观察到了显著差异。 4.3 该试验方法也用作短期加压验证程序，其中试样被加压到预定的最小压力要求。

1.1 This test method covers the determination of the resistance of thermoplastic pipe, tubing and fittings, and reinforced thermosetting pipe and reinforced thermoplastic pipe to hydraulic pressure in a short time period. Procedure A is used to determine burst pressure of a specimen if the mode of failure is to be determined. Procedure B is used to determine that a specimen complies with a minimum burst requirement. Note 1: Reinforced thermoplastic pipe is a three-layer construction consisting of a thermoplastic core layer around which is wound a continuous helical reinforcement layer. A protective thermoplastic cover layer is applied over the reinforcement. For design and pressure, the thermoplastic core and cover layers are not considered hoop stress bearing elements. All of the hoop stress is taken up by the reinforcement layer. 1.2 This test method is suitable for establishing laboratory testing requirements for quality control purposes or for procurement specifications. 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 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 ====== 4.1 This test method establishes the short term hydraulic failure pressure of thermoplastic pipe, tubing and fittings, and reinforced thermosetting pipe, and reinforced thermoplastic pipe. Data obtained by this test method are of use only in predicting the behavior of pipe, tubing, and fittings under conditions of temperature, time, method of loading, and hoop stress similar to those used in the actual test. They are generally not indicative of the long-term strength of thermoplastic or reinforced thermosetting resin pipe, tubing, and fittings, and reinforced thermoplastic pipe. 4.2 Procurement specifications utilizing this test method may stipulate a minimum and maximum time for failure other than the 60 to 70 s listed in 9.1.3 . Either the internal hydraulic pressure or the hoop stress may be listed in the requirements. Note 2: Many thermoplastics give significantly different burst strengths depending on the time to failure. For instance, significant differences have been observed between failure times of 65 s and 85 s. 4.3 This test method is also used as a short-term pressurization validation procedure, where the specimens are pressurized to a predetermined minimum pressure requirement.