1.1 本规范涵盖了由标准尺寸比（SDR）、SCH 40和SCH 80的热塑性材料制成的水井套管和联轴器。 1.2 提供了这些材料在水井和地下水监测应用中的应用规范。冲洗螺纹接头系统包括主要用于建造地下水监测井的滤网和套管（见实践） D5092/D5092M ). 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。 （参见 IEEE/ASTM SI 10 .) 注1: 某些现场条件可能需要替代材料，以确保长期安全使用。用户应咨询联邦、州和地方规范，以管理热塑性材料在油井套管或监测管中的使用。 注2: 本标准规定了管道和流体处理应用的尺寸、性能和测试要求，但未涉及燃烧气体的排放。 1.4 虽然本规范中列出的管道尺寸和SDR值通常可用，但附表40和80中的许多其他塑料管、其他SDR值和各种外径已用于油井套管。 选择此类产品通常是因为它们满足某些需求 附件A1 包括这些塑料管井套管专用件的列表。 1.5 以下安全隐患警告仅适用于试验方法部分第节 6. ，本规范: 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。

1.1 This specification covers water well casing pipe and couplings made from thermoplastic materials in standard dimension ratios (SDR), SCH 40 and SCH 80. 1.2 Specifications are provided for the application of these materials to water well and ground water monitoring applications. Flush threaded joint systems are included for screen and casing used primarily in the construction of ground water monitoring wells (see Practice D5092/D5092M ). 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. (See IEEE/ASTM SI 10 .) Note 1: Certain field conditions may require alternative materials to ensure safe long-term use. The user should consult federal, state, and local codes governing the use of thermoplastic materials for well casing or monitor pipe. Note 2: This standard specifies dimensional, performance and test requirements for plumbing and fluid handling applications, but does not address venting of combustion gases. 1.4 Although the pipe sizes and SDR values listed in this specification are generally available, numerous other plastic pipes in Schedule 40 and 80 wall, other SDR values and various outside diameters have been used for well casing. Such products are often selected because they fulfill certain needs and Annex A1 includes a list of these Plastic Pipe Well Casing Specials. 1.5 The following safety hazards caveat pertains only to the test method portion, Section 6 , of this specification: 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.