Methods of test for insulating materials for electrical purposes; volume resistivity and surface resistivity of solid electrical insulating materials (IEC 60093:1980); German version HD 429 S1:1983
Electric strenght of insulating materials - Test methods - Part 3: Additional requirements for (1.2/50 µs) impulse tests (IEC 60243-3:2001); German version EN 60243-3:2001
Electrical insulating materials - Thermal endurance properties - Part 2: Determination of thermal endurance properties of electrical insulating materials - Choice of test criteria (IEC 60216-2:2005); German version EN 60216-2:2005