ISO 15257:2017现行
Cathodic protection - Competence levels of cathodic protection persons - Basis for a certification scheme
出版：International Organization for Standardization
专家解读视频
Provides five levels of competence (detailed in Clause 4) for persons working in the field of cathodic protection (CP), including survey, design, installation, testing, maintenance and advancing the science of cathodic protection and also specifies a framework for establishing these competence levels and their minimum requirements.
NS EN ISO 15257 : 2017 - Identical
UNE EN ISO 15257 : 2018 - Identical
NEN EN ISO 15257 : 2017 - Identical
SS-EN ISO 15257:2017 - Identical
BS EN ISO 15257 : 2017 - Identical
I.S. EN ISO 15257:2017 - Identical
DS EN ISO 15257 : 2017 - Identical
UNI EN ISO 15257 : 2017 - Identical
DIN EN ISO 15257 E : 2017 - Identical
PN EN ISO 15257 : 2017 - Identical
DIN EN ISO 15257 : 2016 - Identical
SN EN ISO 15257 : 2017 - Identical
NF EN ISO 15257 : 2017 - Identical
