1.1 本规范涵盖主要用于输送腐蚀性液体的工厂制造的塑料衬里黑色金属管、配件和法兰。包括材料、工艺、尺寸、设计、制造、工作压力和温度、试验方法、鉴定要求和标记的要求。 1.1.1 本规范未定义不同衬里材料对各种化学和操作环境的适用性。有关适用性建议，请参阅制造商的耐化学性数据。 1.1.2 本规范不包括涂有塑料的产品。 1.2 本规范涵盖下列塑料衬里管道、法兰和配件: 表1 . 压力限制应符合ASME B16标准，但制造商可根据黑色金属外壳的压力和温度限制以及衬里的密封能力确定减压限制除外。 注1: 在本规范中，丙烯塑料包括术语中定义为聚丙烯塑料和丙烯塑料的材料 F412 . 这两种材料在产品上均标识为“PP”。注意，这与术语不一致 D1600 ，其中“PP”是聚丙烯的缩写。 1.3 塑料衬里法兰管和配件组件的温度限制在 表2 . 最终用户应咨询制造商，了解在低于额定最低温度下使用特定衬里管道组件的可能结果。 注2: 温度限制基于非腐蚀性试验条件。在特定侵蚀性环境中使用可能会改变温度限制。在这种情况下，具体温度限值应由买方和制造商共同协商确定。 1. 4. 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。 1.5 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。

1.1 This specification covers factory-made plastic-lined ferrous metal pipe, fittings, and flanges intended primarily for conveying corrosive fluids. Requirements for materials, workmanship, dimensions, design, fabrication, working pressure and temperatures, test methods, qualification requirements, and markings are included. 1.1.1 This specification does not define the suitability of different liner materials to various chemical and operating environments. Refer to the manufacturer's chemical resistance data for suitability recommendations. 1.1.2 This specification does not include products coated with plastics. 1.2 This specification covers plastic-lined pipe, flanges, and fittings as listed in Table 1 . Pressure limitations shall be in accordance with ASME B16 Standards, except reduced pressure limitations may be established by the manufacturer, considering both pressure and temperature limitations of the ferrous metal housing and the sealing ability of the liner. Note 1: In this specification, propylene plastics cover those materials defined as both polypropylene plastics and propylene plastics in Terminology F412 . Both materials are identified as “PP” on the product. Note that this is at variance with Terminology D1600 , where “PP” is the abbreviation for polypropylene. 1.3 The plastic-lined flanged pipe and fitting assemblies are limited to temperatures shown in Table 2 . End users should consult with manufacturers as to the likely result of using a particular lined piping component at temperatures below the rated minimum. Note 2: The temperature limitations are based on noncorrosive test conditions. Use in specific aggressive environments may alter temperature limitations. In such instances, specific temperature limits shall be established by mutual agreement between the purchaser and the manufacturer. 1.4 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. 1.5 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.