1.1 该分类系统涵盖适用于注塑成型的聚邻苯二甲酰胺（PPA）材料。 1.2 本分类系统中包含的特性是识别所涵盖成分所需的特性。识别对特殊应用重要的特殊特性所需的其他要求应使用第节中给出的后缀进行规定 5. . 1.3 该分类系统允许使用回收材料，前提是满足所有规范要求。 1.4 该分类系统旨在作为一种方法，将用于成品或零件制造的塑料材料分类。它不用于选择材料。只有在仔细考虑了零件的设计和所需性能、零件所处的环境、所采用的制造工艺、所涉及的成本以及材料的固有特性（本分类系统所涵盖的除外）后，塑料领域的专家才能选择材料。 1.5 以SI单位表示的值视为标准值（见 IEEE/ASTM SI-10标准 ). 括号中给出的值仅供参考。 1.6 以下预防性警告仅适用于试验方法部分，第节 11 此分类系统的: 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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。 具体预防说明见 11.7.1 . 注1: 没有已知的ISO等同于本标准。国际标准化组织 聚酰胺的16396-1/-2也可用于描述和分类这些PPA材料，但技术内容有显著差异。 注2: ASTM标准 D6779号 聚酰胺材料也包括PPA材料，涵盖各种聚酰胺化学。本标准提供了ASTM标准中划分为第10组（PA6T/66）、第12组（PA6/6I/66）和第13组（PA6-T/6I）的PPA组合物的分类和规范的附加信息 D6779号 并包括其他PPA成分的规定，以利用所提供的分类。 1.7 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 classification system covers polyphthalamide (PPA) materials suitable for injection molding. 1.2 The properties included in this classification system are those required to identify the compositions covered. Other requirements necessary to identify particular characteristics important to specialized applications are to be specified by using suffixes as given in Section 5 . 1.3 This classification system allows for the use of recycled materials provided that all specification requirements are met. 1.4 This classification system is intended to be a means of calling out plastics materials used in the fabrication of end items or parts. It is not intended for the selection of materials. Material selection can be made by those having expertise in the plastics field only after careful consideration of the design and the performance required of the part, the environment to which it will be exposed, the fabrication process to be employed, the costs involved, and the inherent properties of the material other than those covered by this classification system. 1.5 The values stated in SI units are to be regarded as the standard (see IEEE/ASTM SI-10 ). The values given in parentheses are for information only. 1.6 The following precautionary caveat pertains only to the test methods portion, Section 11 , of this classification system: 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. Specific precautionary statements are given in 11.7.1 . Note 1: There is no known ISO equivalent to this standard. ISO 16396-1/-2 for polyamides may also be used to describe and classify these PPA materials, but the technical content is significantly different. Note 2: ASTM Standard D6779 on polyamide materials also includes PPA materials in its coverage of various polyamide chemistries. This standard gives additional information for classification and specification for PPA compositions classified as Group 10 (PA6T/66), Group 12 (PA6T/6I/66) and Group 13 (PA6T/6I) in ASTM Standard D6779 and includes provisions for other PPA compositions to utilize the classification presented. 1.7 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.