This standard describes the reference method for determining the fat content of cheese and processed cheese, based on the gravimetric method according to Schmid-Bondzynski-Ratzlaff. The standard does not apply to whey cheese; see NEN 3759 for this
NEN 3757-1979 history
1979NEN 3757-1979 Cheese - Physical and chemical test methods - Determination of the fat content (reference method)