Skim, whole, partly skimmed and cream powders are separate products
Codex defines milk powders as products obtained by partial removal of water from milk or cream, but separates them by milkfat: cream powder has at least 42 percent milkfat; whole milk powder has at least 26 percent and less than 42 percent; partly skimmed powder has more than 1.5 percent and less than 26 percent; and skimmed milk powder has no more than 1.5 percent. Each has a 5 percent maximum-water criterion and a minimum milk-protein share in milk solids-not-fat. Filled powders, whey powders, casein, milk-protein concentrates and formulas have different identities and cannot inherit these observations.