Water, about 125F (50C) - 80 fl. oz. - 2,400mL - 100 fl. oz.
Sodium Thiosulfate (Hypo) - 32 oz. avdp. - 960g - 38 3/8 oz. avdp.
Sodium Sulfite, desiccated - 2 oz. avdp. - 60.0g - 2 3/8 oz. avdp.
Acetic Acid (28% Pure) - 6 fl. oz. - 192mL - 7 1/2 fl. oz.
Boric Acid, crystals - 1 oz. avdp. - 30.0g - 1 3/16 oz. avdp.
Potassium Alum - 2 oz. avdp. - 60.0g - 2 3/8 oz avdp.
Cold Water to Make - 1 U.S. gallon - 4.0L - 1 Imp. gallon

U.S. Customary and metric quantities given are exact. Imperial measurements are accurate to within 1 dm. avdp., exact liquid measurements to the ratio of 4 U.S. fl. oz. : 5 Imp. fl. oz.

If it is desired to mix a stock hardener solution, use Kodak F-5a, adding one part of cool hardener to four parts of cool 30% hypo solution--2.5 pounds of hypo to the U.S. gallon of solution (3 lbs./Imp. gal.).