IEC 60811-409:2012给出了通常适用于PVC绝缘材料和护套的质量损失测量程序。IEC 60811-409:2012取消并取代已撤回的IEC 60811-3-2:19 85第8条。IEC 60811-100:2012附录A中显示了替换件的全部详细信息。与上一版本相比没有具体的技术变化，但请参见IEC 60811-100:2012的前言。 本出版物应与IEC 60811-100:2012一起阅读。

IEC 60811-409:2012 gives the procedure for measuring the loss of mass which normally applies to PVC insulations and sheaths. IEC 60811-409:2012 cancels and replaces Clause 8 of IEC 60811-3-2:1985, which is withdrawn. Full details of the replacements are shown in Annex A of IEC 60811-100:2012. There are no specific technical changes with respect to the previous edition, but see the Foreword to IEC 60811-100:2012.

This publication is to be read in conjunction with IEC 60811-100:2012.