scope:

The standard establishes the specifications for safety poly( ethylene terephthalate)type films having silver-gelatin type p emulsions processed to produce a stable black- and -white photographic image. Silver images produced by full reversal processing are included. Silver images that have been chemic ally altered by treatments such as toning, reduction or inte nsification are excluded. Colour films are excluded. However , a gold protection treatment is not excluded. Silver images produced by dr-----