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EN ISO 8968-4:2016

(Main)

Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016)

Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016)

ISO 8968-4|IDF 20-4:2016 specifies a method for the direct and indirect determination of the protein nitrogen content of liquid, whole or skimmed milk.

Milch und Milcherzeugnisse - Bestimmung des Stickstoffgehaltes - Teil 4: Bestimmung des Proteinstickstoff-Gehaltes und des Nichtproteinstickstoff-Gehaltes und Berechnung des tatsächlichen Proteingehaltes (Referenzverfahren) (ISO 8968-4:2016)

Dieser Teil von ISO 8968|IDF 20 legt ein Verfahren zur direkten und indirekten Bestimmung des Proteinstickstoff-Gehaltes von flüssiger, unbehandelter oder entrahmter Milch fest.

Lait et produits laitiers - Détermination de la teneur en azote - Partie 4: Détermination de la teneur en azote protéique et non protéique et calcul de la teneur en protéines vraies (Méthode de référence) (ISO 8968-4:2016)

ISO 8968-4|FIL 20-4:2016 spécifie une méthode pour la détermination directe et indirecte de la teneur en azote protéique du lait liquide, entier ou écrémé.

Mleko in mlečni proizvodi - Določevanje vsebnosti dušika - 4. del: Določevanje vsebnosti beljakovinskega in nebeljakovinskega dušika ter izračun dejanske vsebnosti beljakovin (referenčna metoda) (ISO 8968-4:2016)

Ta del standarda ISO 8968|IDF 20 določa metodo za neposredno in posredno določevanje beljakovinskega dušika v tekočem, polnomastnem in posnetem mleku.

General Information

Status
Published
Publication Date
19-Apr-2016
Withdrawal Date
30-Oct-2016
ICS
67.100.10 - Milk and processed milk products
Technical Committee
CEN/TC 302 - Milk and milk products - Methods of sampling and analysis
Drafting Committee
CEN/TC 302 - Milk and milk products - Methods of sampling and analysis
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
20-Apr-2016
Completion Date
20-Apr-2016
Ref Project
SIST EN ISO 8968-4:2016 - Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016)

Relations

Replaces
EN ISO 8968-5:2001 - Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content (ISO 8968-5:2001)
Effective Date
11-May-2016
Replaces
EN ISO 8968-4:2001 - Milk - Determination of nitrogen content - Part 4: Determination of non-protein nitrogen content (ISO 8968-4:2001)
Effective Date
27-Apr-2016
Replaces
EN ISO 8968-4:2001/AC:2012 - Milk - Determination of nitrogen content - Part 4: Determination of non-protein-nitrogen content - Technical Corrigendum 1 (ISO 8968-4:2001/Cor 1:2011)
Effective Date
27-Apr-2016

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 8968-4:2016
01-julij-2016
1DGRPHãþD
SIST EN ISO 8968-4:2002
SIST EN ISO 8968-4:2002/AC:2012
SIST EN ISO 8968-5:2002
0OHNRLQPOHþQLSURL]YRGL'RORþHYDQMHYVHEQRVWLGXãLNDGHO'RORþHYDQMH
YVHEQRVWLEHOMDNRYLQVNHJDLQQHEHOMDNRYLQVNHJDGXãLNDWHUL]UDþXQGHMDQVNH
YVHEQRVWLEHOMDNRYLQ UHIHUHQþQDPHWRGD  ,62
Milk and milk products - Determination of nitrogen content - Part 4: Determination of
protein and non-protein nitrogen content and true protein content calculation (Reference
method) (ISO 8968-4:2016)
Milch und Milcherzeugnisse - Bestimmung des Stickstoffgehaltes - Teil 4: Bestimmung
des Proteinstickstoff-Gehaltes und des Nichtproteinstickstoff-Gehaltes und Berechnung
des tatsächlichen Proteingehaltes (Referenzverfahren) (ISO 8968-4:2016)
Lait et produits laitiers - Détermination de la teneur en azote - Partie 4: Détermination de
la teneur en azote protéique et non protéique et calcul de la teneur en protéines vraies
(Méthode de référence) (ISO 8968-4:2016)
Ta slovenski standard je istoveten z: EN ISO 8968-4:2016
ICS:
67.100.10 0OHNRLQSUHGHODQLPOHþQL Milk and processed milk
SURL]YRGL products
SIST EN ISO 8968-4:2016 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN ISO 8968-4:2016

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SIST EN ISO 8968-4:2016


EN ISO 8968-4
EUROPEAN STANDARD

NORME EUROPÉENNE

April 2016
EUROPÄISCHE NORM
ICS 67.100.10 Supersedes EN ISO 8968-4:2001, EN ISO 8968-5:2001
English Version

Milk and milk products - Determination of nitrogen
content - Part 4: Determination of protein and non-protein
nitrogen content and true protein content calculation
(Reference method) (ISO 8968-4:2016)
Lait et produits laitiers - Détermination de la teneur en Milch und Milcherzeugnisse - Bestimmung des
azote - Partie 4: Détermination de la teneur en azote Stickstoffgehaltes - Teil 4: Bestimmung des
protéique et non protéique et calcul de la teneur en Proteinstickstoff-Gehaltes und des
protéines vraies (Méthode de référence) (ISO 8968- Nichtproteinstickstoff-Gehaltes und Berechnung des
4:2016) tatsächlichen Proteingehaltes (Referenzverfahren)
(ISO 8968-4:2016)
This European Standard was approved by CEN on 19 March 2016.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8968-4:2016 E
worldwide for CEN national Members.

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SIST EN ISO 8968-4:2016
EN ISO 8968-4:2016 (E)
Contents Page
European foreword . 3

2

---------------------- Page: 4 ----------------------

SIST EN ISO 8968-4:2016
EN ISO 8968-4:2016 (E)
European foreword
This document (EN ISO 8968-4:2016) has been prepared by Technical Committee ISO/TC 34 "Food
products" in collaboration with Technical Committee CEN/TC 278 “Milk and milk products - Methods of
sampling and analysis” the secretariat of which is held by NEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by October 2016, and conflicting national standards shall
be withdrawn at the latest by October 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN ISO 8
...

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c)    obtained from cows whose diet contained a particularly high proportion of vegetable oils such as rapeseed, cotton or palm oil, etc.;
d)    obtained from cows suffering from serious underfeeding (strong energy deficit);
e)    obtained from colostrum;
f)     subjected to technological treatment such as removal of cholesterol or fractionation;
g)    obtained from skim milk, buttermilk or whey;
h)    obtained from cheeses showing increased lipolysis;
i)     extracted using the Gerber, Weibull?Berntrop or Schmid?Bondzynski?Ratzlaff methods, or that has been isolated using detergents (e.g. the Bureau of Dairy Industries method).
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