NF EN 15257:2007被替代
Cathodic Protection - Competence Levels And Certification Of Cathodic Protection Personnel
出版：Association Francaise de Normalisation
专家解读视频
2007 [01/03/2007]2005 PR [01/09/2005]
Indice de classement: A05-692 PR NF EN 15257 September 2005 (09/2005) Supersedes NFA 05 690 and NFA 05 691. (04/2007)
ONORM EN 15257:2007 - Identical
EN 15257:2006 - Identical
NEN EN 15257:2007 - Identical
SS EN 15257 Ed. 1 (2006) - Identical
NS EN 15257 Ed. 1 (2006) - Identical
UNI EN 15257:2007 - Identical
I.S. EN 15257:2006 - Identical
NBN EN 15257:2007 - Identical
DIN EN 15257 (2007-03) - Identical
BS EN 15257:2006 - Identical
SN EN 15257:2007 - Identical
