ISO 8967|IDF 134:2005 specifies a method for the determination of the bulk density of dried whole milk, dried partly skimmed milk and dried skimmed milk, whether non-instant or instant.
The method is also applicable to dried whey, dried buttermilk and dried milk-based infant food, as well as to any of the dried products indicated above in which fat has been replaced by another fat, or which has been roller-dried instead of spray-dried.