NS EN 970 Ed. 1 (1998)被替代
Non-destructive Examination Of Fusion Welds - Visual Examination
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
Describes the visual examination of fusion welds in metallic materials, which is usually carried out on welds in the as-welded condition, but occasionally, if needed by an application standard or agreement between contracting parties, may be performed at other stages during the welding process.
UNE EN 970:1997 - Identical
SS EN 970 Ed. 1 (1997) - Identical
UNI EN 970:1997 - Identical
NF EN 970:1997 - Identical
I.S. EN 970:1997 - Identical
NBN EN 970:1997 - Identical
ONORM EN 970:1997 - Identical
DIN EN 970 (1997-03) - Identical
BS EN 970:1997 - Identical
NEN EN 970:1998 - Identical
SN EN 970:1997 - Identical
