DIN EN 444 (1994-04)被替代
Non-destructive testing - General principles for the radiographic examination of metallic materials using X-rays and gamma-rays
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
UNI EN 444:1995 - Identical
SN EN 444:1995 - Identical
NEN EN 444:1994 - Identical
ONORM EN 444:1994 - Identical
BS EN 444:1994 - Identical
NBN EN 444:1994 - Identical
I.S. EN 444:1994 - Identical
NF EN 444:1994 - Identical
NS EN 444 Ed. 1 (1994) - Identical
UNE EN 444:1995 - Identical
SS EN 444 Ed. 1 (1994) - Identical
