This part of ISO 8262|IDF 124 specifies the reference method for the determination of the fat content of infant foods to which the Röse-Gottlieb method is not applicable [i.e. those milk-based and other types of infant food that contain more than 5 % (mass fraction) (dry matter) of starch or dextrin, or vegetable, fruit, meat, etc.]. The method is also applicable if the product contains free fatty acids in significant quantities or if hard lumps that do not dissolve completely in ammonia are present in the product. NOTE Other milk-based infant foods can be examined by the method utilizing the Röse-Gottlieb principle given in ISO 8381. Malto-dextrins without higher molecular dextrins, which are often present in infant foods, do not disturb the RG extraction even when present in high percentages.