ISO 1871:2009
Current
The latest, up-to-date edition.
Food and feed products General guidelines for the determination of nitrogen by the Kjeldahl method
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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)
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DocumentType |
Standard
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Pages |
7
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PublisherName |
International Organization for Standardization
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Status |
Current
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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 |
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 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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