本文件已被宣布为“稳定”，不再接受货币定期审查。用户负责验证参考资料和持续适用性或技术要求。新技术可能存在。本规范涵盖一种浸有酚醛树脂的棉织物，并以管材的形式提供。这种管子通常用于低电压下的电气绝缘和防止电偶腐蚀，但用途不限于此类应用。 这种管子具有良好的加工质量和良好的防潮性。

This document has been declared "Stabilized" and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist.This specification covers one type of cotton fabric impregnated with a phenolic resin and supplied in the form of tubing. This tubing has been used typically for electrical insulation at low voltages and for protection from galvanic corrosion, but usage is not limited to such applications. This tubing has good machining qualities and good moisture resistance.