NF V04-221-1*NF EN ISO 8968-1:2014
Milk and milk products - Determination of nitrogen content - Part 1 : Kjeldahl principle and crude protein calculation

Standard No.

NF V04-221-1*NF EN ISO 8968-1:2014

Release Date

2014

Published By

Association Francaise de Normalisation

Latest

NF V04-221-1*NF EN ISO 8968-1:2014

Replace

NF V04-221-1:2002 NF V04-221-2:2002

Scope

This International Standard specifies a method for determining the nitrogen content and calculating the crude protein content of milk and milk products according to the Kjeldahl method, using conventional and block digestion methods. The methods are applicable: 　——to liquid cow's milk (whole, semi-skimmed or skimmed), to whole liquid goat's and sheep's milk; 　——to hard, semi-hard or soft cheeses; 　——to powdered milk and dairy products powder, in particular infant milk, milk protein concentrates, whey protein concentrates, caseins and caseinates. They are not

NF V04-221-1*NF EN ISO 8968-1:2014 Referenced Document

• ISO 385 Laboratory glassware - Burettes
• ISO 8655-3 Piston-operated volumetric apparatus — Part 3: Burettes*， 2022-04-22 Update

NF V04-221-1*NF EN ISO 8968-1:2014 history

• 2014 NF V04-221-1*NF EN ISO 8968-1:2014 Milk and milk products - Determination of nitrogen content - Part 1 : Kjeldahl principle and crude protein calculation
• 0000 NF V04-221-1:2002
• 1971 NF V04-211:1971 MILK. DETERMINATION OF TOTAL NITROGEN CONTENT. (KJELDAHL METHOD).