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ISO 1871:2009

Current
Current

The latest, up-to-date edition.

Food and feed products General guidelines for the determination of nitrogen by the Kjeldahl method
Available format(s)

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

Language(s)

English, French

Published date

14-08-2009

ISO 1871:2009 provides general guidelines for the determination of nitrogen by the Kjeldahl method. It applies to food and feed products containing nitrogenous compounds that can be directly determined by the Kjeldahl method. This measurement principle does not take into account the nitrogen from nitrates and nitrites.

DevelopmentNote
Supersedes ISO/DIS 1871. (08/2009)
DocumentType
Standard
Pages
7
PublisherName
International Organization for Standardization
Status
Current
Supersedes

Standards Relationship
NF ISO 1871 : 2009 Identical
BS ISO 1871:2009 Identical
NEN ISO 1871 : 2009 Identical
UNI 22001 : 1992 Identical
UNI 10760 : 1998 Identical

DD ISO/TS 3632-2:2003 Saffron (Crocus sativus L.) Test methods
BS 6145:1981 Specification for saffron
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 EN ISO 5983-1:2005 Animal feeding stuffs. Determination of nitrogen content and calculation of crude protein content Kjeldahl method
ISO/TS 16634-2:2009 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content Part 2: Cereals, pulses and milled cereal products
CEN ISO/TS 16634-2:2009 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 2: Cereals, pulses and milled cereal products (ISO/TS 16634-2:2009)
EN ISO 16634-2:2016 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 2: Cereals, pulses and milled cereal products (ISO 16634-2:2016)
BS 7073-1:1989 Oilseeds Specification for soya beans
DD CEN ISO/TS 16634-2:2009 Food products. Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content Cereals, pulses and milled cereal products
BS EN ISO 16634-2:2016 Food products. Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content Cereals, pulses and milled cereal products
BS 5766-4:1981 Methods for analysis of animal feeding stuffs Determination of nitrogen content and calculation of crude protein content
04/30107183 DC : DRAFT FEB 2004 ISO 5983-1 - ANIMAL FEEDING STUFFS - DETERMINATION OF NITROGEN CONTENT AND CALCULATION OF CRUDE PROTEIN CONTENT - PART 1: KJELDAHL METHOD
PREN ISO 20483 : DRAFT 2012 CEREALS AND PULSES - DETERMINATION OF THE NITROGEN CONTENT AND CALCULATION OF THE CRUDE PROTEIN CONTENT - KJELDAHL METHOD (ISO/DIS 20483:2012)
DIN EN ISO 20483:2014-03 CEREALS AND PULSES - DETERMINATION OF THE NITROGEN CONTENT AND CALCULATION OF THE CRUDE PROTEIN CONTENT - KJELDAHL METHOD (ISO 20483:2013)
I.S. EN ISO 20483:2013 CEREALS AND PULSES - DETERMINATION OF THE NITROGEN CONTENT AND CALCULATION OF THE CRUDE PROTEIN CONTENT - KJELDAHL METHOD (ISO 20483:2013)
I.S. EN ISO 5983-2:2009 ANIMAL FEEDING STUFFS - DETERMINATION OF NITROGEN CONTENT AND CALCULATION OF CRUDE PROTEIN CONTENT - PART 2: BLOCK DIGESTION AND STEAM DISTILLATION METHOD
BS 6145:1994 Specification for saffron
S.R. CEN ISO TS 16634-2:2009 FOOD PRODUCTS - DETERMINATION OF THE TOTAL NITROGEN CONTENT BY COMBUSTION ACCORDING TO THE DUMAS PRINCIPLE AND CALCULATION OF THE CRUDE PROTEIN CONTENT - PART 2: CEREALS, PULSES AND MILLED CEREAL PRODUCTS
DIN EN ISO 20483 E : 2014 CEREALS AND PULSES - DETERMINATION OF THE NITROGEN CONTENT AND CALCULATION OF THE CRUDE PROTEIN CONTENT - KJELDAHL METHOD (ISO 20483:2013)
ISO 5378:1978 Starches and derived products — Determination of nitrogen content by the Kjeldahl method — Spectrophotometric method
UNI EN ISO 5983-2 : 2009 ANIMAL FEEDING STUFFS - DETERMINATION OF NITROGEN CONTENT AND CALCULATION OF CRUDE PROTEIN CONTENT - PART 2: BLOCK DIGESTION AND STEAM DISTILLATION METHOD
UNI EN ISO 5983-1 : 2005 ANIMAL FEEDING STUFFS - DETERMINATION OF NITROGEN CONTENT AND CALCULATION OF CRUDE PROTEIN CONTENT - PART 1: KJELDAHL METHOD
UNI EN ISO 20483 : 2014 CEREALS AND PULSES - DETERMINATION OF THE NITROGEN CONTENT AND CALCULATION OF THE CRUDE PROTEIN CONTENT - KJELDAHL METHOD
12/30251275 DC : 0 BS EN ISO 20483 - CEREALS AND PULSES - DETERMINATION OF THE NITROGEN CONTENT AND CALCULATION OF THE CRUDE PROTEIN CONTENT - KJELDAHL METHOD
14/30311290 DC : 0 BS EN ISO 16634-2 - FOOD PRODUCTS - DETERMINATION OF THE TOTAL NITROGEN CONTENT BY COMBUSTION ACCORDING TO THE DUMAS PRINCIPLE AND CALCULATION OF THE CRUDE PROTEIN CONTENT - PART 2: CEREALS, PULSES AND MILLED CEREAL PRODUCTS
04/30109612 DC : 0 EN ISO 16634 - CEREALS, PULSES, MILLED CEREAL PRODUCTS, OILSEEDS, OILSEED RESIDUES AND ANIMAL FEEDING STUFFS - DETERMINATION OF TOTAL NITROGEN AND CRUDE PROTEIN CONTENTS BY COMBUSTION ACCORDING TO THE DUMAS PRINCIPLE
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
UNI CEN ISO/TS 16634-2 : 2009 FOOD PRODUCTS - DETERMINATION OF THE TOTAL NITROGEN CONTENT BY COMBUSTION ACCORDING TO THE DUMAS PRINCIPLE AND CALCULATION OF THE CRUDE PROTEIN CONTENT - PART 2: CEREALS, PULSES AND MILLED CEREAL PRODUCTS
UNE-EN ISO 16634-2:2016 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 2: Cereals, pulses and milled cereal products (ISO 16634-2:2016)
UNE-EN ISO 20483:2014 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2013)
BS EN ISO 20483:2013 Cereals and pulses. Determination of the nitrogen content and calculation of the crude protein content. Kjeldahl method
BS EN ISO 3188:1994 Starches and derived products. Determination of nitrogen content by the Kjeldahl method. Titrimetric method
BS EN ISO 5983-2:2009 Animal feeding stuffs. Determination of nitrogen content and calculation of crude protein content Block digestion and steam distillation method
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 5983-2:2009 Animal feeding stuffs Determination of nitrogen content and calculation of crude protein content Part 2: Block digestion and steam distillation method
ISO 16634-2:2016 Food products — Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content — Part 2: Cereals, pulses and milled cereal products
BS EN ISO 5378:1994 Starches and derived products. Determination of nitrogen content by the Kjeldahl method. Spectrometric method
ISO 20483:2013 Cereals and pulses — Determination of the nitrogen content and calculation of the crude protein content — Kjeldahl method
ISO 5983-1:2005 Animal feeding stuffs Determination of nitrogen content and calculation of crude protein content Part 1: Kjeldahl method
EN ISO 5983-1:2005/AC:2009 ANIMAL FEEDING STUFFS - DETERMINATION OF NITROGEN CONTENT AND CALCULATION OF CRUDE PROTEIN CONTENT - PART 1: KJELDAHL METHOD (ISO 5983-1:2005/Cor 1:2008)
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 5378:1994 Starches and derived products - Determination of nitrogen content by the Kjeldahl method - Spectrophotometric method (ISO 5378:1978)
EN ISO 20483:2013 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2013)
EN ISO 5983-2:2009 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2: Block digestion and steam distillation method (ISO 5983-2:2009)
I.S. EN ISO 16634-2:2016 FOOD PRODUCTS - DETERMINATION OF THE TOTAL NITROGEN CONTENT BY COMBUSTION ACCORDING TO THE DUMAS PRINCIPLE AND CALCULATION OF THE CRUDE PROTEIN CONTENT - PART 2: CEREALS, PULSES AND MILLED CEREAL PRODUCTS (ISO 16634-2:2016)
BIS IS/ISO 5983-2 : 2005 ANIMAL FEEDING STUFFS - DETERMINATION OF NITROGEN CONTENT AND CALCULATION OF CRUDE PROTEIN CONTENT - PART 2: BLOCK DIGESTION/STEAM DISTILLATION METHOD
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
DIN EN ISO 5983-2:2009-10 ANIMAL FEEDING STUFFS - DETERMINATION OF NITROGEN CONTENT AND CALCULATION OF CRUDE PROTEIN CONTENT - PART 2: BLOCK DIGESTION AND STEAM DISTILLATION METHOD

ISO 8968-1:2014 Milk and milk products — Determination of nitrogen content — Part 1: Kjeldahl principle and crude protein calculation
ISO 5983-1:2005 Animal feeding stuffs Determination of nitrogen content and calculation of crude protein content Part 1: Kjeldahl method
ISO 20483:2013 Cereals and pulses — Determination of the nitrogen content and calculation of the crude protein content — Kjeldahl method

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