配方类型:

METAL TREATMENTS

配方说明:

about 5 g of sodium dithionite is needed to treat
each liter of thiosulfate fixer from the photographic
developing process, and about 4 g is needed to treat
11 of rinse obtained from photo-reproduction processes.
NOTE: add ammonium hydroxide to bring pH to 11-12.

配方组成:

配制方法: