… glues, adhesives and similar preparations); unmixed products for photographic uses, put up in measured portions …
Explanatory notes
… glues, adhesives and similar preparations); unmixed products for photographic uses, put up in measured portions … colour of the image (e.g., sodium sulphide). (6) Clearing agents to remove stains caused during development, fixation, … , usually consisting of aluminium or magnesium, in powder, tablets, foil, etc., and sometimes mixed with other …