Ilford ID-13

High contrast film developer for line films

Part A
Water 125F/52C750ml
Hydroquinone25g
Potassium Metabisulfite25g
Potassium Bromide25g
Cold water to make1000ml
Part B
Cold Water750ml
Potassium or Sodium Hydroxide50g
Cold water to make1000ml
Mixing Instructions: Add chemicals in specified sequence. Always use cold water when mixing potassium or sodium hydroxide due to risk of heat reaction.
Dilution: Mix equal parts A + B immediately before use.
Usage: Starting point dev time: 3 mins.

Notes 

Poor keeping qualities. Once A + B are mixed together use immediately and discard.