90.93 Standard confirmed Jun 21, 2022
ISO
ISO/TC 34/SC 11 Animal and vegetable fats and oils
International Standard
67.200.10 Animal and vegetable fats and oils
The method consists in dissolving of a test portion in chloroform, extracting of free glycerol from this sulution with acetic acid solution, oxidizing of 1-monoglycerides in the chloroform solution by an excess of periodic acid solution, adding of potassium iodide and titration of the liberated iodine with a sodium thiosulfate standard volumetric solution. Oxidation of free glycerol in the aqueous solution by an excess of periodic acid solution, adding of potassium iodide titration of the liberated iodine with a sodium thiosulfate standard volumetric solution.
PUBLISHED
ISO 7366:1987
90.93
Standard confirmed
Jun 21, 2022