NBN EN 15257:2007现行
Cathodic Protection - Competence Levels And Certification Of Cathodic Protection Personnel
出版：Belgian Standards
专家解读视频
Describes three competence levels (Annex B) of personnel acting in the field of cathodic protection, including survey, design, installation, testing and maintenance.
EN 15257:2006 - Identical
SS EN 15257 Ed. 1 (2006) - Identical
I.S. EN 15257:2006 - Identical
UNI EN 15257:2007 - Identical
NS EN 15257 Ed. 1 (2006) - Identical
NEN EN 15257:2007 - Identical
ONORM EN 15257:2007 - Identical
SN EN 15257:2007 - Identical
BS EN 15257:2006 - Identical
DIN EN 15257 (2007-03) - Identical
NF EN 15257:2007 - Identical
