NF C48-211F11:2002
Regarding the NF C48-211 standard and NF C48-212 standard in February 1989, the NF C48-227 standard and NF C48-228 standard in June 1987, the NF C48-229 standard in October 1987, and the NF C48- in December 1987 230 standard, May 1988 NF C48-265 standard