ISO 663

ISO 663: Animal and vegetable fats and oils - Determination of insoluble impurities content

ISO 663 standard includes the test method for the determination of the content of insoluble impurities in animal and vegetable fats or oils, especially in milk and dairy products or fats obtained from milk and dairy products that comply with this standard Testing operations can be carried out as follows.

Substances expressed as impurities in milk and dairy products or the oils obtained from them are mechanical impurities, mineral substances, carbohydrates, nitrogenous substances. , calcium soaps, or acid lactones, various resins, oxidized fatty acids, hydroxy acids and glycerides of these substances.

If soap or oxidized fatty acids are not to be included in the content of insoluble impurities, it may be necessary to use a different solvent or procedure. The situation can be evaluated according to the product to be tested or the analysis result desired to be obtained.

ISO 663: Animal and vegetable fats and oils - Determination of insoluble impurities content