This standard applies to 35 and 16 mm photographic sound films intended for monitoring, adjustment and
GOST 21998-1976 Referenced Document
GOST 15150-1969 Machines, instruments and other industrial products. Modifications for different climatic regions. Categories, operating, storage and transportation conditions as to environment climatic aspects influence
GOST 2.601-1995 Unified system for design documentation. Exploitative documents*, 1995-04-19 Update
GOST 25704-1983 Film materials. Image areas and sound records. Magnetic tracks. Dimensions and position. Control methods*, 1983-04-19 Update
GOST 21998-1976 history
1976GOST 21998-1976 35- and 16-mm test films with photographic recording. Type, basic parameters and dimensions