Neutral tone paper and film developer

Water, 125F/52C	750 ml
Sodium Sulfite (anhydrous)	50 g
Hydroquinone	12 g
Sodium Carbonate (anhydrous)	60 g
Phenidone	0.5 g
Potassium Bromide	2 g
Benzotriazole	0.2 g
Cold water to make	1L

Mixing instructions: Add chemicals in specified sequence.

Dilution: 1+3 (tray), 1+7 (tank), (1+1 to 1+3) paper

Starting point development time: 2-4 mins (tray), 4-8 mins (tank), 2 mins (paper)