JJG 2028-1989
Verification Scheme of Measuring Instruments for Diffuse Transmission Visual Density (English Version)
- Standard No.
- JJG 2028-1989
- Language
- Chinese, Available in English version
- Release Date
- 1989
- Published By
- National Metrological Verification Regulations of the People's Republic of China
- Status
- 2022-06
- Replace By
- JJG 2028-2021
- Latest
- JJG 2028-2021
JJG 2028-1989 history
- 2021 JJG 2028-2021 Measuring Instruments for Diffuse Transmission Visual Density(Black and White Density)
- 1989 JJG 2028-1989 Verification Scheme of Measuring Instruments for Diffuse Transmission Visual Density
