Submitted by admin_soper on Mon, 03/12/2012 - 08:55
|
Rollo Pyro Stock Solution A |
|
Distilled water (125°F) |
400ml |
|
metol |
7.5g |
|
Sodium Bisulfite* |
10.0g |
|
Pyrogallol |
75g |
|
Ascorbic acid (Vitamin C) |
5.0g |
|
EDTA - Na4 |
2.5g |
|
water to make |
500 ml |
|
|
|
|
Rollo Pyro Stock Solution B |
|
Distilled water |
950ml |
|
Sodium Metaborate |
150g |
Make a working solution by mixing 2 parts A with 8 parts B with 100 parts water. This pyro solution is specially designed as a substitute for PMK and provides even development with tube processors running at 25 rpm. Developing times range from 5 to 7 minutes.
