ISO 6520 : 1982 (B)已作废
CLASSIFICATION OF IMPERFECTIONS IN METALLIC FUSION WELDS, WITH EXPLANATIONS
出版：International Organization for Standardization
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 not included in the groups above.
I.S. EN 26520:1992 - Identical
DIN EN 26520 : 1991 - Identical
DIN 32502 E : 1985 - Identical
DIN 32502 : 1985 - Identical
DIN EN 26520 E : 1991 - Identical
NEN ISO 6520 : 1987 - Identical
BS EN 26520 : 1992 - Identical
DIN 32502 E : 1985 - Identical
NBN EN 26520 : 1992 - Identical
EN 26520 : 1991 - Identical
DIN EN 26520 : 1991 - Identical
NEN ISO 6520 : 1987 - Identical
UNE EN 26520 : 1992 - Identical
I.S. EN 26520:1992 - Identical
BS EN 26520 : 1992 - Identical
NF EN 26520 : 1992 - Identical
DIN 32502 : 1985 - Identical
