Ilford's ID-19

Water @ 125F
Elon
Sod. Sulfite
Hydroquinone
Sod. Carbonate
Pot. Bromide
Water to make
750.0ml
2.3g
72g
8.8g
56g
4.0g
1.0L

Recommended development times for aerial films at 68 F (20 C) are about 13 minutes in a spool tank or about 8 minutes in an automatic processing machine. For scientific materials see the instructions issued with the materials concerned. Available as an Ilford packed chemical in sizes to make 80 ounces, 1 gallon, and 5 gallons, British Imperial measure of working strength solution.