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| Chinese National Standard Category: Measurement in general |
| English Title: | Geometric conditions for photographic reflection density measurement |
| Chinese Title: | 摄影反射密度测量的几何条件 |
| Standard No.: | GB/T 12822-1991 |
| Category No.: | A50 |
| Issued by: | CSBTS |
| Issued on: | 1991-04-30 |
| Implemented on: | 1992-3-1 |
| Status: | superseded |
| Superseded by: | GB/T 12823.4-2008 Photography - Density measurement - Part 4: Geometric conditions for reflection density |
| Superseded on: | 2009-5-1 |
| Abolished on: | 2009-05-01 |
| Superseding: | |
| Word Count: | 2000 words |
| Similar Standards: | T/CI 126-2023 JJF 1001-1998 T/CCBD 25-2023 DB32/T 4488-2023 T/SRMA 10-2020 CSM 01 01 02 03-2006 GB/T 28714-2023 GB/T 40149-2021 GB/T 40071-2021 GB/T 39663-2021 GB/T 36377-2018 GB/T 27419-2018 GB/T 36085-2018 GB/T 36308-2018 GB/T 27418-2017 GB/T 35400-2017 GB/T 33659-2017 GB/T 31880-2015 JJF 1261.4-2014 JJF 1265-2010 |
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