Milk. Determination of total nitrogen content. (kjeldahl method).

Main informations

Collections

National standards and national normative documents

Publication date

December 1971

Number of pages

5 p.

Reference

NF V04-211

ICS Codes

67.100.10 Milk and processed milk products

Classification index

V04-211

Print number

1 - 01/01/1972

Standard replaced by (5)

NF EN ISO 8968-1

May 2002

Standard Cancelled

Milk - Determination of nitrogen content - Part 1 : Kjeldahl method

ISO 8968-1|IDF 20-1:2001 specifies a method for the determination of the nitrogen content of liquid milk, whole or skimmed, by the Kjeldahl principle.

NF EN ISO 8968-2

May 2002

Standard Cancelled

Milk - Determination of nitrogen content - Part 2 : block-digestion method (Macro method)

ISO 8968-2|IDF 20-2:2001 specifies a method for the determination of the nitrogen content of liquid milk, whole or skimmed, by the block-digestion principle.

NF EN ISO 8968-4

May 2002

Standard Cancelled

Milk - Determination of nitrogen content - Part 4 : determination of non-protein nitrogen content

ISO 8968-4|IDF 20-4:2001 specifies a method for the determination of the non-protein nitrogen content of liquid milk, whole or skimmed.

NF EN ISO 8968-5

May 2002

Standard Cancelled

Milk - Determination of nitrogen content - Part 5 : determination of protein-nitrogen content

ISO 8968-5|IDF 20-5:2001 specifies a method for the direct determination of the protein-nitrogen content of liquid milk, whole or skimmed. An alternative indirect method using calculations is also described.

NF EN ISO 8968-3

October 2007

Standard Current

Milk - Determination of nitrogen content - Part 3 : block-digestion method (semi-micro rapid routine method)

ISO 8968-3|IDF 20-3:2004 specifies a method for the determination of the nitrogen content of liquid, whole or skimmed milk. It concerns a semi-micro rapid routine method following the block-digestion principle.

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