| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB 2923-1982 | English | 519 |
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Days<=4
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Methods for determination of speed of black-and-white photographic negative materials for still and motion-picture photography
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GB 2923-1982
| Obsolete |
GB 2923-1982
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