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ISO 5983-2:2009

Current
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
Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French, Russian

Published date

26-05-2009

ISO 5983-2:2009 specifies 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.

It is suitable for use as a semi-micro rapid routine method using block digestion, copper catalyst, and steam distillation into boric acid.

The method is applicable to the determination of greater than 0,5 % mass fraction Kjeldahl nitrogen in animal feeding stuffs, pet foods, and their raw materials.

The method does not measure oxidized forms of nitrogen nor heterocyclic nitrogen compounds.

The method does not distinguish between protein nitrogen and non-protein nitrogen.

DevelopmentNote
Together with ISO 5983-1, supersedes ISO 5983 (07/2005) Supersedes ISO/DIS 5983-2. (05/2009)
DocumentType
Standard
Pages
15
PublisherName
International Organization for Standardization
Status
Current
Supersedes

14/30301619 DC : 0 BS EN 15948 - CEREALS - DETERMINATION OF MOISTURE AND PROTEIN - METHOD USING NEAR-INFRARED-SPECTROSCOPY IN WHOLE KERNELS
BS EN ISO 12099:2017 Animal feeding stuffs, cereals and milled cereal products. Guidelines for the application of near infrared spectrometry
UNE-EN ISO 14244:2017 Oilseed meals - Determination of soluble proteins in potassium hydroxide solution (ISO 14244:2014)
UNI EN ISO 16634-1 : 2009 FOOD PRODUCTS - DETERMINATION OF THE TOTAL NITROGEN CONTENT BY COMBUSTION ACCORDING TO THE DUMAS PRINCIPLE AND CALCULATION OF THE CRUDE PROTEIN CONTENT - PART 1: OILSEEDS AND ANIMAL FEEDING STUFFS
DIN EN ISO 16634-1:2009-07 FOOD PRODUCTS - DETERMINATION OF THE TOTAL NITROGEN CONTENT BY COMBUSTION ACCORDING TO THE DUMAS PRINCIPLE AND CALCULATION OF THE CRUDE PROTEIN CONTENT - PART 1: OILSEEDS AND ANIMAL FEEDING STUFFS
BS ISO 14244 : 2014 OILSEED MEALS - DETERMINATION OF SOLUBLE PROTEINS IN POTASSIUM HYDROXIDE SOLUTION
EN ISO 12099:2017 Animal feeding stuffs, cereals and milled cereal products - Guidelines for the application of near infrared spectrometry (ISO 12099:2017)
DIN EN 15948:2015-06 CEREALS - DETERMINATION OF MOISTURE AND PROTEIN - METHOD USING NEAR-INFRARED-SPECTROSCOPY IN WHOLE KERNELS
IS 14702 : 2022 Solvent Extracted Undecorticated Sunflower Oilcake as Livestock Feed Ingredient-Specification
UNI EN ISO 12099 : 2010 ANIMAL FEEDING STUFFS, CEREALS AND MILLED CEREAL PRODUCTS - GUIDELINES FOR THE APPLICATION OF NEAR INFRARED SPECTROMETRY
UNE-EN 15948:2015 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels
16/30329601 DC : 0 BS EN ISO 12099 - ANIMAL FEEDING STUFFS, CEREALS AND MILLED CEREAL PRODUCTS - GUIDELINES FOR THE APPLICATION OF NEAR INFRARED SPECTROMETRY
ISO 12099:2017 Animal feeding stuffs, cereals and milled cereal products — Guidelines for the application of near infrared spectrometry
EN 15948:2015 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels
I.S. EN 15948:2015 CEREALS - DETERMINATION OF MOISTURE AND PROTEIN - METHOD USING NEAR-INFRARED-SPECTROSCOPY IN WHOLE KERNELS
BS EN 15948:2015 Cereals. Determination of moisture and protein. Method using Near-Infrared-Spectroscopy in whole kernels
BS EN ISO 16634-1:2008 Food products. Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content Oilseeds and animal feeding stuffs
ISO 14244:2014 Oilseed meals Determination of soluble proteins in potassium hydroxide solution
ISO 16634-1:2008 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content — Part 1: Oilseeds and animal feeding stuffs
EN ISO 16634-1:2008 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 1: Oilseeds and animal feeding stuffs (ISO 16634-1:2008)
EN ISO 14244:2016 Oilseed meals - Determination of soluble proteins in potassium hydroxide solution (ISO 14244:2014)
I.S. EN ISO 16634-1:2008 FOOD PRODUCTS - DETERMINATION OF THE TOTAL NITROGEN CONTENT BY COMBUSTION ACCORDING TO THE DUMAS PRINCIPLE AND CALCULATION OF THE CRUDE PROTEIN CONTENT - PART 1: OILSEEDS AND ANIMAL FEEDING STUFFS
I.S. EN ISO 12099:2017 ANIMAL FEEDING STUFFS, CEREALS AND MILLED CEREAL PRODUCTS - GUIDELINES FOR THE APPLICATION OF NEAR INFRARED SPECTROMETRY (ISO 12099:2017)

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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