International Organization for Standardization (ISO)
Latest
ISO 6:1993
Scope
Specified is a sensitometric method for determining and expressing the speed of photographic negative materials.
ISO 6:1993 history
1993ISO 6:1993 Photography; black-and-white pictorial still camera negative film/process systems; determination of ISO speed
1974ISO 6:1974 Photography — Determination of ISO speed of monochrome (black-and-white), continuous-tone photographic negative materials for still photography