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ISO 8968-1:2014

Milk and milk products — Determination of nitrogen content — Part 1: Kjeldahl principle and crude protein calculation

Feb 3, 2014

General information

90.93     Dec 16, 2022

ISO

ISO/TC 34/SC 5

International Standard

67.100.10  

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Scope

ISO 8968-1|IDF 20-1:2014 specifies a method for the determination of the nitrogen content and crude protein calculation of milk and milk products by the Kjeldahl principle, using traditional and block digestion methods. The methods are applicable to: liquid cow's (whole, partially skimmed or skimmed milk), goat's and sheep's whole milk; hard, semi-hard and processed cheese; dried milk and dried milk products (including milk-based infant formulae, milk protein concentrate, whey protein concentrate, casein and caseinate). The methods are not applicable to samples containing ammonium caseinate.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 5549:1978

WITHDRAWN
ISO 8968-1:2001

WITHDRAWN
ISO 8968-2:2001

WITHDRAWN
ISO/TS 17837:2008

WITHDRAWN
ISO 8968-4:2001/Cor 1:2011

NOW

PUBLISHED
ISO 8968-1:2014
90.93 Standard confirmed
Dec 16, 2022