2011NF C03-501:2011 Standard data element types with associated classification scheme for electric items - Part 1 : definitions - Principles and methods.
2005NF C03-501/A1:2005 Standard data element types with associated classification scheme for electric components - Part 1: definitions - Principles and methods.
0000 NF C03-501:2003
1996NF C03-501:1996 Standard data element types with associated classification scheme for electric components. Part 1 : definitions. Principles and methods.