EN ISO 8968-1:2014
Milk and milk products - Determination of nitrogen content - Part 1: Kjeldahl principle and crude protein calculation

Standard No.
EN ISO 8968-1:2014
Release Date
2014
Published By
European Committee for Standardization (CEN)
Latest
EN ISO 8968-1:2014
Replace
FprEN ISO 8968-1:2013
Scope
This International Standard specifies a method for determining the nitrogen content and calculating the crude protein content of milk and milk products by the Kjeldahl method using conventional and block digestion methods. The procedures apply to: liquid cow's milk (whole, semi-skimmed or skimmed), goat's and sheep's whole milk; Hard, semi-hard and melted cheese; Dry milk and dry milk products (including milk-based infant formula, milk protein concentrate, whey protein concentrate, casein and caseinate). The procedures are not suitable for samples containing ammonium caseinate. NOTE If non-dairy protein sources are present in the products specified in this International Standard, inaccurate results for crude protein will be obtained.

EN ISO 8968-1:2014 Referenced Document

EN ISO 8968-1:2014 history

  • 2014 EN ISO 8968-1:2014 Milk and milk products - Determination of nitrogen content - Part 1: Kjeldahl principle and crude protein calculation
  • 2001 EN ISO 8968-1:2001 Milk - Determination of Nitrogen Content - Part 1: Kjeldahl Method

EN ISO 8968-1:2014 Milk and milk products - Determination of nitrogen content - Part 1: Kjeldahl principle and crude protein calculation has been changed from EN ISO 8968-2:2001 Milk - Determination of Nitrogen Content - Part 2: Block-Digestion Method (Macro Method).




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