 |
|
| TEA | 75 | ml |
| Ascorbic acid | 5 | g |
| Pyrogallol | 10 | g |
| Phenidone | 0.375 | g |
| TEA to make | 100 | ml |
| Mixing Instructions: Add chemicals in specified sequence. |
| Dilution: 1+100 |
| Usage: Starting point dev time: 5-7 mins. |
Notes Can also be diluted up to 1:500 for EDRA (extended development/reduced agitation) techniques, with one minute initial agitation, followed by one inversion every 10-15 minutes for approximately one hour. Original formula called for 0.25g phenidone, but was updated by Jay DeFehr for greater consistency. |
