Post by Steaphany on Jul 18, 2013 21:03:53 GMT
From the Amateur Photographic Science Page:
Prepare:
Ansco 72 Stock Solution
to
add and dissolve
then add
Prepare:
Ansco 72 Tank Working Solution ( 500 ml )
to
add and mix
Prepare:
Ansco 72 Tray Working Solution ( 500 ml )
to
add and mix
This formula is recommended for use with COMMERCIAL FILMS in reproduction work and is also suitable for development of roll, pack, and sheet film.
Tank Development - 20 to 25 minutes at 20ºC.
Tray Development - 5 to 10 minutes at 20ºC.
Prepare:
Ansco 72 Stock Solution
to
| Warm Water ( ~50ºC ) | CAS # 7732-18-5 | 750 ml |
add and dissolve
| Sodium Sulfite ( Anhydrous ) | CAS # 7757-83-7 | 125.0 grams |
| Potassium Carbonate | CAS # 584-08-7 | 250.0 grams |
| Glycin, p-Hydroxy Phenylaminoacetic Acid | CAS # 122-87-2 | 50.0 grams |
then add
| Cold Water ( ~20ºC ) | CAS # 7732-18-5 | to make 1,000 ml |
Prepare:
Ansco 72 Tank Working Solution ( 500 ml )
to
| Cold Water ( ~20ºC ) | 469 ml |
add and mix
| Ansco 72 Stock Solution | 31 ml |
Prepare:
Ansco 72 Tray Working Solution ( 500 ml )
to
| Cold Water ( ~20ºC ) | 400 ml |
add and mix
| Ansco 72 Stock Solution | 100 ml |
This formula is recommended for use with COMMERCIAL FILMS in reproduction work and is also suitable for development of roll, pack, and sheet film.
Tank Development - 20 to 25 minutes at 20ºC.
Tray Development - 5 to 10 minutes at 20ºC.