ISO 2504:1973廢止
Radiography of welds and viewing conditions for films - Utilization of recommended patterns of image quality indicators (I.Q.I.)
出版：International Organization for Standardization
專家解讀視頻
Gives conditions for using of recommended patterns of image quality indicators for eradiography of welds and viewing conditions for films.
KS B ISO 2504:2013 - Identical
KS B ISO 2504:2002 - Identical
GB/T 19938-2005 - Identical
SS 11 41 30:1979 - Similar
NBN F 51 002:1980 - Identical
DIN 54109-2 (1989-07) - Similar
BS 2600-2:1973 - Similar
UNE 14602:1979 - Identical
