给出了一种标称收缩比为2:1的热收缩阻燃耐流体聚偏二氟乙烯套管的要求，适用于温度高达175 C的环境。 该套管的内径通常为25.4 mm，标准颜色为透明。 除本标准中特别列出的尺寸或颜色外，其他尺寸或颜色可作为定制项目提供。如果这些项目符合表2、3、4和5中列出的性能要求，则认为它们符合本标准，但尺寸和质量除外。 符合本规范的材料符合既定的性能水平。然而，用户为特定应用选择材料时，应基于该应用中充分性能所需的实际要求，而不是仅基于本规范。 本版本包括与前一版本相关的以下重大技术变更: 用长期老化试验代替IEC 60216规定的耐热性试验方法，即在推荐的适合使用的最高温度下进行3000小时，以便在可行的时间范围内提供安全的热试验数据。

Gives the requirements for one type of heat-shrinkable, flame retarded, with a nominal shrink ratio 2:1, fluid resistant polyvinylidene fluoride sleeving for use at temperatures up to 175 C. This sleeving is normally supplied with an internal diameter up to 25,4 mm, and the standard colour is transparent. Sizes or colours other than those specifically listed in this standard may be available as custom items. These items are considered to comply with this standard if they comply with the property requirements listed in Tables 2, 3, 4 and 5, with the exception of dimensions and mass. Materials which conform to this specification meet established levels of performance. However, the selection of a material by a user for a specific application should be based on the actual requirements necessary for adequate performance in that application and not based on this specification alone. This edition includes the following significant technical change with regard to the previous edition: Replacement of the thermal endurance test method according to IEC 60216 with a long term ageing test, i.e. 3 000 h at the recommended maximum temperature found suitable for use,in order to provide safe thermal test data within a workable time scale.