China 'GB/T 20224-2006
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 20224-2006
Determination of exposure index, ISO speed ratings, standard output sensitivity and recommended exposure index for digital still cameras 数码照相机曝光指数、ISO感光度值、标准输出灵敏度和推荐曝光指数的确定
Issued Date:2006-04-05
Implemented Date:2006-11-01
Issued by:
The Standardization Administration of the People's Republic of China
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