NF EN 60974-4:2007被替代
Arc Welding Equipment - Part 4: In-service Inspection And Testing
出版：Association Francaise de Normalisation
专家解读视频
Defines test procedures for in-service inspection and, after repair, to ensure electrical safety.
Indice de classement: A85-009-4PR. PR NF EN 60974-4 February 2006. (02/2006) PR NF EN 60974-4 November 2009. (11/2009)
UNE EN 60974-4:2011 - Identical
NBN EN 60974-4:2011 - Identical
I.S. EN 60974-4:2007 - Identical
UNE EN 60974-4:2007 - Identical
SS EN 60974-4 Ed. 1 (2007) - Identical
BS EN 60974-4:2007 - Identical
DIN EN 60974-4 (2007-09) - Identical
NBN EN 60974-4:2007 - Identical
