GB/T 9862-1988
Method for determining the speed and average gradient of black-and-white aerial camera films (English Version)
- Standard No.
- GB/T 9862-1988
- Language
- Chinese, Available in English version
- Release Date
- 1988
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 9862-1988
- Scope
- This standard specifies the methods for determining the sensitivity and average slope of black and white aerial film, including test principles, instruments, sampling, exposure and processing, general requirements for density measurement, calculation methods, etc. This standard is applicable to the determination of sensitivity and average slope of black and white aerial film. This standard does not apply to the determination of the sensitivity of black and white infrared aerial film.
GB/T 9862-1988 history
- 1988 GB/T 9862-1988 Method for determining the speed and average gradient of black-and-white aerial camera films
