UNE-EN 60641-2:2004 Pressboard and presspaper for electrical purposes -- Part 2: Methods of tests (IEC 60641-2:2004) (Endorsed by AENOR in November of 2006.)
2006UNE-EN 60641-2:2004 Pressboard and presspaper for electrical purposes -- Part 2: Methods of tests (IEC 60641-2:2004) (Endorsed by AENOR in November of 2006.)