หมายเลข : ISO 5738 : 2004
ชื่อเรื่อง : Milk and milk products — Determination of copper content — Photometric method (Reference method)
Abstracts :
The method is applicable to: a) milk, skimmed milk and buttermilk; b) evaporated milk and sweetened condensed milk; c) whole and skimmed milk powder; d) cream and butter; e) butterfat; f) ice-cream; g) hard, semi-hard and soft cheeses of various ages, and processed cheese; and h) caseins, caseinates and coprecipitates.
The method is suitable for determining copper contents as low as 0,05 mg/kg in test samples of butter and butterfat.
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