DEVELOPERS 
2. Pyrogallol 
Oxalic acid 
Water 
For use, take: 
No. 1 solution 
No. 2 solution 
Acetone 
Water 
Pyro for Hammer Plates—Stock solutions: 
1. Sodium sulphite 
Water 
Hydrometer test, 80°. 
2. Sodium carbonate 
Water 
Hydrometer test, 40°. 
3. Potassium metabisulphite 
Pyrogallol 
Water 
For tray take: 
No. 1 solution 
No. 2 solution 
No. 3 solution 
Water (winter ) 
Water (summer ) 
For tank take: 
No. 1 solution 
No. 2 solution 
No. 3 solution 
Water 
62.5 g 
zg 
1000 ccm 
118 ccm 
59 ccm 
29.5 ccm 
588 ccm 
156 g 
1000 ccm 
782g 
1000 ccm 
7.82 
62.5 ¢ 
1000 ccm 
30 ccm 
30 ccm 
30 ccm 
360 ccm 
480 ccm 
43 ccm 
43 ccm 
43 ccm 
870 ccm 
111¥ oz. 
117 
Bromide potassium, saturated solution, 0.2 ccm, 12 drops. 
Develop 12 minutes at 65° F. 
Rexo Film—Make the following solution: 
