This standard specifies method for determination of protein content in foods.
The first method and the second method of this standard is applicable to protein determination of all kinds of foods, the third method is applicable to screening determination of solid samples such as grains, peas, milk powder, rice flour and protein powder, the protein content of which is above 10g/100g.
This standard is not applicable to the determination of foods containing inorganic nitrogenous substance and organic non-protein nitrogenous substance.
