NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 9582-2008
Photography - Industrial radiographic films - Determination of ISO speed, ISO average gradient and ISO gradients G2 and G4 when exposed to X-and Gamma-radiation 摄影 工业射线胶片 ISO感光度，ISO平均斜率和ISO斜率G2和G4的测定（用X和γ射线曝光）
Issued Date:2008-09-24
Implemented Date:2009-05-01
Issued by:
The Standardization Administration of the People's Republic of China
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