1.1 本规范适用于由四氟乙烯树脂、四氟乙烯和六氟丙烯共聚物以及用作电气绝缘的全氟烷氧基树脂制成的柔性热收缩挤压管。本规范不包括本规范涵盖的交联聚偏氟乙烯和聚偏氟乙烯共聚物 D3144页 . 注1: 本标准与IEC 60684-3-240相似但不完全相同。 1.2 除温度外，以英寸-磅为单位的数值应视为标准值，温度应以摄氏度为单位。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。 1.3 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 applies to flexible heat-shrinkable extruded tubing made from tetrafluoroethylene resin, copolymer of tetrafluoroethylene and hexafluoropropylene, and from perfluoroalkoxy resin for use as electrical insulation. This specification excludes crosslinked poly(vinylidene fluoride) and poly(vinylidene fluoride) copolymer which are covered under Specification D3144 . Note 1: This standard is similar but not identical to IEC 60684-3-240. 1.2 The values stated in inch-pound units are to be regarded as standard, except temperature, which shall be stated in degrees Celsius. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 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.