For local bleaching of prints

• Rött blodlutsalt, 1%

• Hypo (natriumtiosulfat), 10%

As an alternative to B, one can use ordinary fixer at working strength.

To mix a working strength solution, proceed as follows:

• Solution A, 5 ml
• Solution B, 120ml
• Water, to make 1000ml

The solution is effective for approx 10 min. Reduce proportion of solution A to get a less powerful bleach.

Blanda lika delar av lösning A och B, späd eventuellt med 2 delar vatten. Större andel blodlutsalt ger snabbare blekning.