ISO 761:1977

Acetic anhydride and butan-1-ol for industrial use — Determination of bromine number

The principle consists in treatment of a test portion in acid solution with excess standard volumetric potassium bromide-potassium bromate solution, addition of potassium iodide solution and titration of the liberated iodine with a standard volumetric solution of sodium thiosulphate. – Replaces ISO Recommendation R 761-1968.