1.1 本规范规定了原始、本色、未改性均聚物超高分子量聚乙烯（UHMWPE）塑料成型和挤出材料的识别。该标识的制作方式应确保买卖双方能够就不同商业批次或装运的可接受性达成一致。 1.2 本规范还为基于各种机械、热学、电学和其他分析的超高分子量聚乙烯材料的表征提供了指导。 1.3 其目的不是区分商用超高分子量聚乙烯的各种分子量等级。 1.4 本规范的功能不是为设计目的提供特定工程数据。 1.5 本规范中定义的超高分子量聚乙烯是指根据本文所述的测试程序，相对粘度为1.44或更高的乙烯线性聚合物。 1.6 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.7 以下预防性警告仅适用于第节中的试验方法部分 7. 以及本规范的附录和附录: 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。 注1: 本标准和ISO 11542-1涉及相同的主题，但技术内容不同。ISO 11542-1提供了一个基于各种特性和根据ISO 1628-3确定的粘度值范围的分类系统。 1.8 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 provides for the identification of virgin, natural color, unmodified homopolymer ultra-high-molecular-weight polyethylene (UHMWPE) plastics molding and extrusion materials. This identification is made in such a manner that the seller and purchaser can agree on the acceptability of different commercial lots or shipments. 1.2 This specification also provides guidance for the characterization of UHMWPE materials based on various mechanical, thermal, electrical, and other analyses. 1.3 It is not intended to differentiate between various molecular weight grades of ultra-high-molecular-weight polyethylene commercially available. 1.4 It is not the function of this specification to provide specific engineering data for design purposes. 1.5 Ultra-high-molecular-weight polyethylenes, as defined in this specification, are those linear polymers of ethylene which have a relative viscosity of 1.44 or greater, in accordance with the test procedures described herein. 1.6 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.7 The following precautionary caveat pertains only to the test method portions in Section 7 and the Annex and Appendixes, 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. Note 1: This standard and ISO 11542-1 address the same subject matter, but differ in technical content. ISO 11542-1 provides a classification system based on various characteristics and a range of viscosity numbers determined in accordance with ISO 1628-3. 1.8 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.