1.1 本规范涵盖了由厚度为0.25 mm（0.010 in.）的低密度、中密度和高密度聚乙烯和共聚物制成的挤压（铸造或吹塑）和压模板材的要求更大。根据功能要求，符合本规范的板材用于化学罐衬里、电气设备中的垫片、托盘、集装箱等物品的热成型以及机器车间库存等应用。 1.2 聚乙烯材料是热塑性塑料，可再加工和回收（见指南 D5033 和 D7209 ). 本规范允许使用这些聚乙烯塑料材料，前提是满足生产商和最终用户的任何特定要求。 1.3 以国际单位制表示的数值应视为标准值。 括号中给出的值仅供参考。 1.4 以下预防性警告仅适用于试验方法部分第节 11 ，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和健康实践，并确定监管限制的适用性。 注1: 没有已知的ISO等效于本标准。

1.1 This specification covers requirements for extruded (cast or blown) and compression-molded sheeting made from low-, medium- and high-density polyethylenes and copolymers in thickness of 0.25 mm (0.010 in.) and greater. Depending on the functional requirements, sheeting conforming to this specification is used in applications such as chemical tank linings, spacers in electrical equipment, thermoforming into such items as trays, pallets, and shipping containers, and as machine-shop stock. 1.2 Polyethylene materials, being thermoplastics, are reprocessable and recyclable (see Guides D5033 and D7209 ). This specification allows for the use of those polyethylene plastic materials, provided that any specific requirements as governed by the producer and end user are met. 1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.4 The following precautionary caveat pertains only to the test methods portion, Section 11 , 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 and health practices and determine the applicability of regulatory limitations prior to use. Note 1: There is no known ISO equivalent to this standard.