| No. 1 for Neutral Fixing Bath: Treated sample 1 min in each of two 2-liter lots of distilled water. |
|
| No. 2 for Nonhardening Acid Fixing Bath: | |
| Sodium bisulfite | 60.0 g. |
| Water to make | 2 liters. |
| Treated sample 2 min. | |
| No. 3 for Acid Hardening Fixing Bath: | |
| Glacial acetic acid | 30 ml. |
| Water to make | 2 liters. |
| Treated sample 30 secs. |
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