F5

Kodak tropical acid hardening fixing bath for films and plates. IngredientQuantity Powdered boric acid dissolves only with great difficulty and its use should be avoided Sodium thiosulphate anhydrous150 grams Sodium sulfite anhydrous 15grams Acetic acid glacial 17...

F16

Chrome alum hardening fixing bath recommended for hot weather processing. Also known as Ansco 202. IngredientQuantity Pour 1 part Solution B into 3 parts Solution A, whilst stirring A rapidly. Solution A Sodium thiosulphate320 grams Sodium sulfite anhydrous 20grams...