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| Standard Insuued on: 1988-04 |
GB 8987-1988 Micrographics; Test target of optical density measurement for microfilming negative
缩微摄影技术 缩微摄影时检验负像光学密度用测试标板
| Category No.: | GB | Valid Status: | superseded |
| Issued Organization: | China State Bureau of Standards | Issued Date: | 1988-04-11 |
| Implemented Date: | 1988-12-1 | Abolished Date: | 2009-01-01 |
| Superseded Standard.: | GB/T 8987-2008 Micrographics - Test target for checking optical density of negative microimages in microfilming |
Superseded Date: | 2009-1-1 |
GB/T 9172-1988
GB 8941.3-1988
GB 8941.2-1988
GB 8941.1-1988
GB/T 9061-1988
GB/T 9088-2008
GB/T 9102-1988
GB/T 9097.1-1988
GB/T 9101-1988
GB/T 1.4-1988
CB 1099.1-1988
GB/T 9104.9-1988
JJG 559-1988
GB 9811-1988
GB/T 9951-1988
GB/T 9952-1988
GB/T 9950-1988
GB/T 10021-1988
GB/T 9109.5-1988
GB 9171-1988
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