1.1 该分类体系包括至少由90%组成的聚三氟氯乙烯（PCTFE）塑料 % 三氟氯乙烯和适用于挤出、压缩和注射成型。其他组分允许进行化学改性，例如共聚单体，但不包括着色剂、填料、增塑剂或与其他树脂的机械共混物。该分类体系不包括回收的PCTFE材料。 1.2 由PCTFE模塑化合物模塑或挤出的零件的物理和电气性能随加工和后续退火期间获得的结晶含量而变化。 因此，中列出的数值 表1 仅适用于根据第节模制的试样 8. . 这些值不适用于在其他条件下制备和退火的半成品和成品零件的设计标准。 1.3 以国际单位制表示的数值详见 IEEE/SI-10 将被视为标准。括号中给出的值仅供参考。 1.4 以下预防说明仅适用于测试方法部分第节 10 ，属于该分类系统: 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: 虽然该分类系统和ISO 20568-1和ISO 20568-2方法或细节不同，使用其中一种方法获得的数据在技术上是等效的。 1.5 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 polychlorotrifluoroethylene (PCTFE) plastics that consist of at least 90 % chlorotrifluoroethylene and are suitable for extrusion and for compression and injection molding. Additional components allow for chemical modifications, such as co-monomers, but not colorants, fillers, plasticizers, or mechanical blends with other resins. This classification system does not cover recycled PCTFE materials. 1.2 The physical and electrical properties of parts molded or extruded from PCTFE molding compounds vary with the crystalline content obtained during processing and subsequent annealing. Accordingly, the numerical values listed in Table 1 apply only to the test specimens molded in accordance with Section 8 . These values are not applicable as design criteria to semi-finished and finished parts prepared and annealed under other conditions. 1.3 The values stated in SI units as detailed in IEEE/SI-10 are to be regarded as the standard. The values given in parentheses are for information only. 1.4 The following precautionary statement pertains only to the test methods portion, Section 10 , 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. Note 1: Although this classification system and ISO 20568-1 and ISO 20568-2 differ in approach or detail, data obtained using either are technically equivalent. 1.5 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.