DIN EN 61212-2:2007
绝缘材料.电工用基于热固树脂的工业型刚性层压圆管和棒材.第2部分:试验方法(IEC 61212-2-2006)
Insulating Materials - Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes - Part 2: Methods of test (IEC 61212-2:2006); German version EN 61212-2:2006