Kodak - D20
Water 750.0 ml
Elon 5.0 g
Sod. Sulphite (annhy.) 100.0 g
Sod. Metaborate 2.0 g
Sod. Thiocyanate 1.0 g
Pot. Bromide 0.5 g
Water to make 1.0 litre
Average development time was 15 min. in tank at 20C.