EN ISO 8968-5:2001
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content (ISO 8968-5:2001)
15-12-2001
01-04-2016
Foreword
1 Scope
2 Normative references
3 Term and definition
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of test sample
9 Procedure
9.1 Test portion
9.2 Direct determination
9.3 Indirect determination
10 Calculation and expression of results
10.1 Calculation of protein-nitrogen content
10.2 Calculation of true protein content
11 Precision
11.1 Interlaboratory test
11.2 Repeatability
11.3 Reproducibility
12 Test report
Bibliography
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.
| Committee |
CEN/TC 302
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| NBN EN ISO 8968-5 : 2002 | Identical |
| BS EN ISO 8968-5:2002 | Identical |
| NEN EN ISO 8968-5 : 2002 | Identical |
| PN EN ISO 8968-5 : 2004 | Identical |
| ISO 8968-5:2001 | Identical |
| I.S. EN ISO 8968-5:2002 | Identical |
| NF EN ISO 8968-5 : 2002 | Identical |
| NS EN ISO 8968-5 : 1ED 2002 | Identical |
| UNE-EN ISO 8968-5:2002 | Identical |
| DIN EN ISO 8968-5:2002-06 | Identical |
| ISO 8968-1:2014 | Milk and milk products — Determination of nitrogen content — Part 1: Kjeldahl principle and crude protein calculation |
| ISO 5725-1:1994 | Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions |
| 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 707:2008 | Milk and milk products — Guidance on sampling |
| ISO 8968-2:2001 | Milk — Determination of nitrogen content — Part 2: Block-digestion method (Macro method) |
| ISO 5725-2:1994 | Accuracy (trueness and precision) of measurement methods and results — Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method |
| ISO 5725:1986 | Precision of test methods — Determination of repeatability and reproducibility for a standard test method by inter-laboratory tests |