DIN EN 60811-409-2012 电缆和光缆. 非金属材料的试验方法. 第409部分:杂项试验. 热塑性绝缘材料和护套的质量损失试验 (IEC 60811-409-2012); 德文版本EN 60811-409-2012
Electric and optical fibre cables - Test methods for non-metallic materials - Part 409: Miscellaneous tests - Loss of mass test for thermoplastic insulations and sheaths (IEC 60811-409:2012); German version EN 60811-409:2012