给出了三种由PTFE挤出的非热收缩套管的要求。 这种类型的套管通常内径不超过8.53 mm，壁厚范围在0.15 mm和0.51 mm之间。 本规范涵盖三个壁厚等级:“薄壁”、“标准壁”和“厚壁”，与标称内径有关，且对击穿电压的要求存在相应差异。 产品性能经验表明，PTFE套管可能适合包含在温度高达250°C的系统中。

Gives the requirements for three types of non-heat-shrinkable sleeving, extruded from PTFE. Sleeving of this type is normally available with internal diameters up to 8,53 mm and in a range of wall thicknesses between 0,15 mm and 0,51 mm. This specification covers three levels of wall thickness: "thin wall", "standard wall" and "thick wall" related to nominal internal diameter and with corresponding differences in requirements for breakdown voltage. Experience of product performance indicates that PTFE sleeving may be suitable for inclusion in systems for operation at temperatures up to 250 °C.