Kodak D-7

Pyro film developer

Part A
Water500ml
Metol7.5g
Sodium Bisulfite7.5g
Pyro30g
Potassium Bromide4.2g
Cold water to make1000ml
Part B
Water1000ml
Sodium Sulfite (anhydrous)150g
Part C
Water1000ml
Sodium Carbonate (monohydrate*)90g
Mixing Instructions: Add chemicals in specified sequence.
Dilution: 1+1+1+8 (tray) or 1+1+1+13 (tank)
Usage: Starting point dev time: 7 mins (tray), 10 mins (tank)

Notes 

*multiply amount by 0.833 if using Sodium Carbonate in anhydrous form.