ISO 6846:1992
Photography; black-and-white continuous-tone papers; determination of ISO speed and ISO range for printing
- Standard No.
- ISO 6846:1992
- Release Date
- 1992
- Published By
- International Organization for Standardization (ISO)
- Latest
- ISO 6846:1992
- Scope
- Pertains to all conventional silver-halide contact and enlarging papers used for continuous-tone or pictorial photography. The method is based on exposing and processing samples, performing density measurements from the resultant image to produce a sensitometric curve from which measurements are taken and used to determine ISO speed and ISO range values. Annexes A to C deal with the relationships between the paper range and the effective density range of the negative, log exposure range and contrast, and log exposure range and average gradient.
ISO 6846:1992 history
- 1992 ISO 6846:1992 Photography; black-and-white continuous-tone papers; determination of ISO speed and ISO range for printing
- 1983 ISO 6846:1983 Photography — Black-and-white continuous-tone papers — Determination of ISO speed and range for printing
