UNI EN ISO 5983-2 : 2009

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Current The latest, up-to-date edition.

ANIMAL FEEDING STUFFS - DETERMINATION OF NITROGEN CONTENT AND CALCULATION OF CRUDE PROTEIN CONTENT - PART 2: BLOCK DIGESTION AND STEAM DISTILLATION METHOD

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Published date: 25-08-2009

Publisher: Ente Nazionale Italiano di Unificazione (UNI)

Table of Contents - (Show below) - (Hide below)

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of test sample
9 Procedure
   9.1 General
   9.2 Test portion
   9.3 Determination
   9.4 Blank test
   9.5 Recovery tests
10 Calculation and expression of results
   10.1 Calculation
   10.2 Calculation of crude protein content
   10.3 Expression of crude protein content results
11 Precision
   11.1 Interlaboratory tests
   11.2 Repeatability
   11.3 Reproducibility
12 Test report
Annex A (informative) Results of interlaboratory tests
Annex B (informative) Results of a profiency test; comparison
        of the colorimetric and potentiometric endpoint determination
        of the titration
Bibliography

Abstract - (Show below) - (Hide below)

Describes a method for the determination of nitrogen content of animal feeding stuffs according to the Kjeldahl method, and a method for the calculation of the crude protein content.

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Committee	CT 3
Document Type	Standard
ISBN
Pages
Published
Publisher	Ente Nazionale Italiano di Unificazione (UNI)
Status	Current
Supersedes	UNI EN ISO 5983-2 : 2005

International Equivalents – Equivalent Standard(s) & Relationship - (Show below) - (Hide below)

Equivalent Standard(s)	Relationship
ISO 5983-2:2009	Identical
NEN EN ISO 5983-2 : 2009	Identical
NBN EN ISO 5983-2 : 2009	Identical
EN ISO 5983-2:2009	Identical
NF EN ISO 5983-2 : 2009	Identical
NS EN ISO 5983-2 : 2009	Identical
BS EN ISO 5983-2:2009	Identical
UNE-EN ISO 5983-2:2009	Identical
I.S. EN ISO 5983-2:2009	Identical
DIN EN ISO 5983-2:2009-10	Identical

Standards Referencing This Book - (Show below) - (Hide below)

ISO 5725-1:1994	Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
ISO 8655-5:2002	Piston-operated volumetric apparatus Part 5: Dispensers
ISO 1871:2009	Food and feed products General guidelines for the determination of nitrogen by the Kjeldahl method
ISO 5983-1:2005	Animal feeding stuffs Determination of nitrogen content and calculation of crude protein content Part 1: Kjeldahl method
ISO 385:2005	Laboratory glassware Burettes
ISO 6497:2002	Animal feeding stuffs Sampling
ISO 8655-2:2002	Piston-operated volumetric apparatus Part 2: Piston pipettes
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 6498:2012	Animal feeding stuffs — Guidelines for sample preparation
ISO 8655-3:2002	Piston-operated volumetric apparatus Part 3: Piston burettes

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