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DD ISO/TS 17837:2008

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Milk and milk products. Determination of nitrogen content and crude protein calculation. Kjeldahl method
Available format(s)

Hardcopy , PDF

Superseded date

02-28-2014

Language(s)

English

Published date

12-31-2008

Foreword
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of the test sample
   8.1 Cheese
   8.2 Milk
9 Procedure
   9.1 Traditional method
   9.2 Block digestion method
   9.3 Blank test
   9.4 Recovery tests
10 Calculation and expression of results
   10.1 Calculation
   10.2 Expression of results
11 Precision
   11.1 Interlaboratory test
12 Test report
Annex A (informative) - Interlaboratory trial
Bibliography

Defines a method for the determination of the nitrogen content and crude protein content by calculation in milk and milk products by using the Kjeldahl principle, both traditional and block digestion methods.

Committee
AW/5
DocumentType
Standard
Pages
24
PublisherName
British Standards Institution
RevisionOf
Status
Superseded
SupersededBy

Standards Relationship
ISO/TS 17837:2008 Identical

ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
ISO 385:2005 Laboratory glassware Burettes
ISO 707:2008 Milk and milk products — Guidance on sampling
ISO 1042:1998 Laboratory glassware One-mark volumetric flasks
ISO 4788:2005 Laboratory glassware Graduated measuring cylinders
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

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