FX-55

Fine grain film developer

Part A
Potassium Carbonate20g
Sodium Bicarbonate1.5g
Sodium Sulfite25g
Sodium Metabisulphite12g
Water to make1000ml
Part B
Sodium L-ascorbate1.3g
Phenidone0.1g
Mixing Instructions: Add chemicals in specified sequence.
Dilution: Dilute Part A 1+9 to make 1000 ml then add Part B.
Usage: 

Notes 

This formula is slightly unusual because you need to make Part A and dilute it 1+9 to make 1000 ml working solution then before use you need to dissolve the chemicals listed in Part B into the 1000 ml of working solution.

This formula was released for public use by Geoffrey Crawley in an article published in Amateur Photographer on 13 Sept 2008.