This part of ISO 11816 IDF 155 specifies a fluorimetric method for the determination of alkaline phosphatase (ALP, EC 3.1.3.1) activity in pasteurized whole milk, semi-skimmed milk, skimmed milk and flavoured milks. The method is applicable for milk from cows, sheep and goats, and milk-based drinks.
The method is also suitable for the determination of high alkaline phosphatase activity in raw milk and heat-treated milk with activities of more than 2 000 mU/l after dilution of the sample as specified.
ISO 11816-1:2006 history
2024ISO 11816-1:2024 Milk and milk products — Determination of alkaline phosphatase activity — Part 1: Fluorimetric method for milk and milk-based drinks
2023ISO 11816-1:2023 Milk and milk products — Determination of alkaline phosphatase activity — Part 1: Fluorimetric method for milk and milk-based drinks
2013ISO 11816-1:2013 Milk and milk products.Determination of alkaline phosphatase activity.Part 1: Fluorimetric method for milk and milk-based drinks
2006ISO 11816-1:2006 Milk and milk products - Determination of alkaline phosphatase activity - Part 1: Fluorimetric method for milk and milk-based drinks
1997ISO 11816-1:1997 Milk and milk products - Determination of alkaline phosphatase activity using a fluorimetric method - Part 1: Milk and milk-based drinks