|Hot Water (125F or 52C)||750 ml|
|Sodium Sulfite, anhydrous||40 g|
|Sodium Carbonate, monohydrated||40 g|
|Potassium Bromide||5 g|
|Water to make||1 L|
Do not dilute for use. Normal developing time, 4 to 6 minutes at 68F (20C).
From Ansco Formulas for Black and White Film by GAF, 1948 – Formulas are provided for historical reference. They may not work well with modern films and papers. Some of the chemicals can be dangerous. As with all photographic processes, be careful.