Quote Originally Posted by Ian Grant View Post
This one uses an Ammonium Thiosulphate Blix, so may well be OK.

The Tetenal C41 Press Kit also uses Ammonium based salts.

Ian
The Tetenal C41 Press Kit shown in the reference uses Sodium salts for both the Iron complex and for the Hypo. I have one here. That is what it says on the box.

PE