ISO 21543|IDF 201:2006 provides guidance on use of near infrared spectrometry in the determination of
-- the total solids, fat and protein contents in cheese,
-- the moisture, fat, protein and lactose contents in dried milk, dried whey and dried butter milk, and
-- the moisture, fat, non-fat solids and salt contents in butter.
BS ISO 21543:2006 history
2020BS ISO 21543:2020 Milk and milk products. Guidelines for the application of near infrared spectrometry
2006BS ISO 21543:2006 Milk products - Guidelines for the application of near infrared spectrometry