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Health Protection Branch - Ottawa
Official Method MFO-3
November 30, 1981
This method is applicable to the determination of alkaline phosphatase activity in dairy products as an index of pasteurization in accordance with Section B.08.030 of the Food and Drug Regulations.
2.1.1 Lot: A batch or production unit which may be identified by the same code. When there is no code identification, a lot may be considered as (a) that quantity of product produced under essentially the same conditions, at the same establishment and representing no more than one day's production; or, (b) the quantity of the same kind of product from one and the same manufacturer available for sampling at a fixed location.
2.1.2 Sample: The sample units (subsamples) taken from a lot for analysis.
2.1.3 Sample Unit: Usually a consumer size container of the product, and should consist of a minimum of 100 g. A sample unit is often referred to as a subsample.
2.1.4 Analytical Unit: That amount of product withdrawn from the sample unit for analysis.
2.2.1 Three sample units shall be drawn at random from each lot.
2.2.2 Each sample unit shall contain at least 50 ml or g.
2.2.3 Each sample unit shall be analyzed individually.
2.2.4 Keep sample units refrigerated (0-5°C) during transport.