SS EN 26 520:1992被替代
Classification Of Imperfections In Metallic Fusion Welds With Explanations
出版：Standardiserings-Kommissionen I Sverige
专家解读视频
Classifies imperfections into the following groups: cavities, cracks, lack of fusion and penetration, solid inclusions, imperfect shape and miscellaneous imperfections.
NF EN 26520:1992 - Identical
ISO 6520:1982 - Identical
DIN EN 26520 (1991-12) - Identical
BS EN 26520:1992 - Identical
I.S. EN 26520:1992 - Identical
UNI EN 26520:1993 - Identical
UNE EN 26520:1992 - Identical
