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1 ratio of protein to nitrogen

1 ratio of protein to nitrogen, Total:125 items.

In the international standard classification, 1 ratio of protein to nitrogen involves: Milk and milk products, Animal feeding stuffs, Cereals, pulses and derived products, Tea. Coffee. Cocoa, Meat, meat products and other animal produce, Textile fibres, General methods of tests and analysis for food products, Edible oils and fats. Oilseeds.


British Standards Institution (BSI), 1 ratio of protein to nitrogen

  • BS EN ISO 8968-4:2016 Milk and milk products. Determination of nitrogen content. Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
  • BS EN ISO 8968-5:2002 Milk. Determination of nitrogen content. Determination of protein-nitrogen content
  • BS EN ISO 8968-4:2002 Milk. Determination of nitrogen content. Determination of non-protein nitrogen content
  • BS ISO 15323:2002 Dried milk protein products. Determination of nitrogen solubility index
  • BS 1741 Sec.6.1:1990 Methods for chemical analysis of liquid milk and cream. Determination of casein nitrogen content of liquid milk. Reference method
  • BS 1741-6.1:1990 Methods for chemical analysis of liquid milk and cream - Determination of casein nitrogen content of liquid milk - Reference method
  • BS EN ISO 20483:2006 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
  • BS EN ISO 20483:2013 Cereals and pulses. Determination of the nitrogen content and calculation of the crude protein content. Kjeldahl method

International Organization for Standardization (ISO), 1 ratio of protein to nitrogen

  • ISO 8968-4:2016 | IDF 20-4:2016 Milk and milk products — Determination of nitrogen content — Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
  • ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
  • ISO 15323:2002 Dried milk protein products - Determination of nitrogen solubility index
  • ISO 15323:2002|IDF173:2002 Determination of nitrogen solubility rate of milk powder protein products
  • ISO 8968-5:2001 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content
  • ISO 8968-5:2001|IDF 20-5:2001 Determination of milk nitrogen content Part 5: Determination of protein nitrogen content
  • ISO 8968-4:2001 Milk - Determination of nitrogen content - Part 4: Determination of non-protein-nitrogen content
  • ISO 8968-5:2001 | IDF 20-5:2001 Milk — Determination of nitrogen content — Part 5: Determination of protein-nitrogen content
  • ISO 8968-4:2001|IDF 20-4:2001 Determination of milk nitrogen content Part 4: Determination of non-protein nitrogen content
  • ISO 8968-4:2001/Cor 1:2011 Milk - Determination of nitrogen content - Part 4: Determination of non-protein-nitrogen content; Technical Corrigendum 1
  • ISO 5983:1979 Animal feeding stuffs; Determination of nitrogen content and calculation of crude protein content
  • ISO 8968-1:2014 | IDF 20-1:2014 Milk and milk products — Determination of nitrogen content — Part 1: Kjeldahl principle and crude protein calculation
  • ISO 17997-1:2004 Milk - Determination of casein-nitrogen content - Part 1: Indirect method (Reference method)
  • ISO 17997-1:2004 | IDF 29-1:2004 Milk — Determination of casein-nitrogen content — Part 1: Indirect method (Reference method)
  • ISO 17997-1:2004|IDF 029-1:2004 Bovine casein - Determination of nitrogen content Part 1: Indirect method (reference 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
  • ISO 5983-1:2005/cor 1:2008 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method; Technical Corrigendum 1
  • ISO 8968-1:2014 Milk and milk products - Determination of nitrogen content - Part 1: Kjeldahl principle and crude protein calculation
  • ISO 20418-1:2018 Textiles - Qualitative and quantitative proteomic analysis of some animal hair fibres - Part 1: Peptide detection using LC-ESI-MS with protein reduction
  • 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

Association Francaise de Normalisation, 1 ratio of protein to nitrogen

  • NF EN ISO 8968-4:2016 Lait et produits laitiers - Détermination de la teneur en azote - Partie 4 : détermination de la teneur en azote protéique et non protéique et calcul de la teneur en protéines vraies (Méthode de référence)
  • NF V04-221-4*NF EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4 : determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
  • NF V04-221-5:2002 Milk - Determination of nitrogen content - Part 5 : determination of protein-nitrogen content.
  • NF V04-221-4:2002 Milk - Determination of nitrogen content - Part 4 : determination of non-protein nitrogen content.
  • NF V18-100:1977 Animal feeding stuffs.determination of nitrogen for the calcultion of crude protein content.
  • NF V03-750:2007 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method.
  • NF EN ISO 5983-1:2005 Aliments des animaux - Détermination de la teneur en azote et calcul de la teneur en protéines brutes - Partie 1 : méthode Kjeldahl
  • NF EN ISO 8968-1:2014 Lait et produits laitiers - Détermination de la teneur en azote - Partie 1 : méthode Kjeldahl et calcul de la teneur en protéines brutes
  • NF V04-221-1*NF EN ISO 8968-1:2014 Milk and milk products - Determination of nitrogen content - Part 1 : Kjeldahl principle and crude protein calculation
  • NF V03-750*NF EN ISO 20483:2014 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
  • NF V18-100-1*NF EN ISO 5983-1:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1 : Kjeldahl method
  • NF V04-407:2002 Meat, meat product and fishery products - Determination of nitrogen content and calculation of the protein content - Kjeldahl method.
  • NF EN ISO 20418-1:2018 Textiles - Analyse protéomique qualitative et quantitative de certaines fibres animales - Partie 1 : détection des peptides par LC ESI MS avec réduction protéique
  • NF V18-100-2*NF 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.
  • NF V18-100-2:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2 : block digestion/steam distillation method.
  • NF EN ISO 16634-2:2016 Produits alimentaires - Détermination de la teneur en azote total par combustion selon le principe Dumas et calcul de la teneur en protéines brutes - Partie 2 : céréales, légumineuses et produits céréaliers de mouture
  • NF G06-007-1*NF EN ISO 20418-1:2018 Textiles - Qualitative and quantitative proteomic analysis of some animal hair fibres - Part 1 : peptide detection using LC-ESI-MS with protein reduction
  • NF V03-767-1*NF 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.

Standard Association of Australia （SAA）, 1 ratio of protein to nitrogen

  • AS ISO 8968.4:2021 Milk and milk products — Determination of nitrogen content, Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
  • AS ISO 8968.1:2021 Milk and milk products — Determination of nitrogen content, Part 1: Kjeldahl principle and crude protein calculation

German Institute for Standardization, 1 ratio of protein to nitrogen

  • DIN EN ISO 8968-4:2016-09 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016); German version EN ISO 8968-4:2016
  • DIN EN ISO 8968-5:2002 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content (ISO 8968-5:2001); German version EN ISO 8968-5:2001
  • DIN EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016); German version EN ISO 8968-4:2016
  • DIN EN ISO 5983-1:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005); English version of DIN EN ISO 5983-1
  • DIN EN ISO 5983-1:2005-10 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005); German version EN ISO 5983-1:2005
  • DIN EN ISO 5983-1 Berichtigung 1:2009-07 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005); German version EN ISO 5983-1:2005, Corrigendum to DIN EN ISO 5983-1:2005-10; German version EN ISO 5983-1:20...
  • DIN EN ISO 8968-1:2014-06 Milk and milk products - Determination of nitrogen content - Part 1: Kjeldahl principle and crude protein calculation (ISO 8968-1:2014); German version EN ISO 8968-1:2014
  • DIN EN ISO 8968-1:2014 Milk and milk products - Determination of nitrogen content - Part 1: Kjeldahl principle and crude protein calculation (ISO 8968-1:2014); German version EN ISO 8968-1:2014
  • DIN EN ISO 5983-2:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2: Block digestion/steam distillation method (ISO 5983-2:2005); German version EN ISO 5983-2:2005
  • DIN EN ISO 20418-1:2018-08 Textiles - Qualitative and quantitative proteomic analysis of some animal hair fibres - Part 1: Peptide detection using LC-ESI-MS with protein reduction (ISO 20418-1:2018); German version EN ISO 20418-1:2018
  • DIN EN ISO 5983-1 Berichtigung 1:2009 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005); German version EN ISO 5983-1:2005, Corrigendum to DIN EN ISO 5983-1:2005-10; German version EN ISO 5983-1:2005/
  • DIN EN ISO 20418-1:2018 Textiles - Qualitative and quantitative proteomic analysis of some animal hair fibres - Part 1: Peptide detection using LC-ESI-MS with protein reduction (ISO 20418-1:2018); German version EN ISO 20418-1:2018
  • DIN 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 (ISO 16634-1:2008); English version of DIN EN ISO 16634-1:
  • 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 (ISO 16634-1:2008); German version EN ISO 16634-1:2008
  • DIN 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); English version of DIN EN ISO 5983-2:2009-10

未注明发布机构, 1 ratio of protein to nitrogen

  • BS EN ISO 8968-4:2016(2017) Milk and milk products — Determination of nitrogen content Part 4 : Determination of protein and non - protein nitrogen content and true protein content calculation (Reference method)
  • BS EN ISO 5983-1:2005(2009) Animal feeding stuffs — Determination of nitrogen content and calculation of crude protein content — Part 1 : Kjeldahl method

ES-UNE, 1 ratio of protein to nitrogen

  • UNE-EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016)
  • UNE-EN ISO 5983-1:2007/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)
  • UNE-EN ISO 20418-1:2019 Textiles - Qualitative and quantitative proteomic analysis of some animal hair fibres - Part 1: Peptide detection using LC-ESI-MS with protein reduction (ISO 20418-1:2018)

IN-BIS, 1 ratio of protein to nitrogen

CEN - European Committee for Standardization, 1 ratio of protein to nitrogen

  • EN ISO 8968-4:2001 Milk - Determination of Nitrogen Content - Part 4: Determination of Non-Protein Nitrogen Content
  • EN ISO 5983-2:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2: Block digestion/steam distillation method
  • EN ISO 8968-1:2001 Milk - Determination of Nitrogen Content - Part 1: Kjeldahl Method

AENOR, 1 ratio of protein to nitrogen

  • UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).
  • UNE-EN ISO 5983-1:2007 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005)
  • UNE-EN ISO 8968-1:2014 Milk and milk products - Determination of nitrogen content - Part 1: Kjeldahl principle and crude protein calculation (ISO 8968-1:2014)

ZA-SANS, 1 ratio of protein to nitrogen

  • SANS 8968-5:2006 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content
  • SANS 8968-4:2006 Milk - Determination of nitrogen content Part 4: Determination of non-protein-nitrogen content

International Dairy Federation (IDF), 1 ratio of protein to nitrogen

  • IDF 20-5-2001 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content
  • IDF 20-4-2001 Milk - Determination of nitrogen content - Part 4: Determination of non-protein-nitrogen content
  • IDF/RM 25-2008 Milk and milk products - Determination of nitrogen content and crude protein calculation - Kjeldahl method
  • IDF 20-1-2014 Milk and milk products - Determination of nitrogen content - Part 1: Kjeldahl principle and crude protein calculation

Danish Standards Foundation, 1 ratio of protein to nitrogen

  • DS/EN ISO 8968-5:2002 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content
  • DS/EN ISO 5983-1/AC:2009 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method
  • DS/EN ISO 5983-1:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method
  • DS/ISO 17997-1:2004 Milk - Determination of casein-nitrogen content - Part 1: Indirect method (Reference method)

Group Standards of the People's Republic of China, 1 ratio of protein to nitrogen

  • T/ZJBX 10-2021 Determination of the proportion of protein hydrolysates with relative molecular weight less than 1000u in protein feed

VN-TCVN, 1 ratio of protein to nitrogen

  • TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
  • TCVN 7253-2003 Tobacco and tobacco products.Determination of nitrogen protein content
  • TCVN 4328-1-2007 Animal feeding stuffs.Determination of nitrogen content and calculation of crude protein content.Part 1: Kjeldahl method
  • TCVN 4328-2-2011 Animal feeding stuffs.Determination of nitrogen content and calculation of crude protein content.Part 2: Block digestion and steam distillation method

European Committee for Standardization (CEN), 1 ratio of protein to nitrogen

  • EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
  • EN ISO 8968-5:2001 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content (ISO 8968-5:2001)
  • EN ISO 5983-1:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005)
  • EN ISO 20483:2013 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - 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 20483:2006 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
  • 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
  • EN ISO 20418-1:2018 Textiles - Qualitative and quantitative proteomic analysis of some animal hair fibres - Part 1: Peptide detection using LC-ESI-MS with protein reduction
  • EN ISO 8968-1:2014 Milk and milk products - Determination of nitrogen content - Part 1: Kjeldahl principle and crude protein calculation
  • 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)

TH-TISI, 1 ratio of protein to nitrogen

  • TIS 2255.1-2005 Animal feeding stuff s-determination of nitrogen content and calculation of crude protein content.part 1: kjeldahl method
  • TIS 2255.2-2005 Animal feeding stuffs-determination of nitrogen content and calculation of crude protein content.part 2: block digestion/steam distillation method

Lithuanian Standards Office , 1 ratio of protein to nitrogen

  • LST EN ISO 8968-5:2002 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content (ISO 8968-5:2001)
  • LST EN ISO 5983-1:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005)
  • LST 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)
  • LST EN ISO 8968-1:2014 Milk and milk products - Determination of nitrogen content - Part 1: Kjeldahl principle and crude protein calculation (ISO 8968-1:2014)

RU-GOST R, 1 ratio of protein to nitrogen

  • GOST R 51454-1999 Caseins and caseinates. Method of determination of nitrate and nitrite contents
  • GOST 32044.1-2012 Feeds, mixed feeds and raw material. Determination of mass fraction of nitrogen and calculation of mass fraction of crude protein. Part 1. Kjeldahl method
  • GOST 23327-1998 Milk and milk products. Determination of mass part of total nitrogen by Kjeldahl method and determination of mass part of protein
  • GOST 23327-1978 Milk. Methods for determination of the total protein content
  • GOST R 51417-1999 Feeds, mixed feeds and raw material. Determination of mass fraction of nitrogen and calculation of mass fraction of crude protein. Kjeldahl method
  • GOST R ISO 16634-1-2011 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
  • GOST ISO 5983-2-2016 Feeds, compound feeds, feed raw materials. Determination of mass fraction of nitrogen and calculation of mass fraction of crude protein. Part 2. Block digestion and steam distillation method
  • GOST R 51423-1999 Feedstuffs, compound feeds, feed raw materials. Method for determination of soluble nitrogen fraction of total mass after treatment with pepsin in dilute hydrochloric acid

Professional Standard - Agriculture, 1 ratio of protein to nitrogen

  • NY/T 1678-2008 Determination of protein in milk and dairy products biuret spectrophotometry method
  • SN/T 5071-2018 Determination of 19 Non-protein Nitrogenous Compounds in Export Food by Liquid Chromatography-Mass Spectrometry/Mass Spectrometry
  • GB 5009.5-2010(XG1-2014) Amendment No. 1 of "National Food Safety Standard for the Determination of Protein in Food"

RO-ASRO, 1 ratio of protein to nitrogen

  • STAS SR 13348-1-1996 Tea. Analysis methods. Determination of proteic nitrogen by the Kjeldahl method. Spectrophotometric method

GOSTR, 1 ratio of protein to nitrogen

  • GOST 34536-2019 Milk and milk products. Determination of mass fraction of whey proteins by Kjeldahl method

AT-ON, 1 ratio of protein to nitrogen

  • ONORM DIN 10334-1994 Determination of nitrogen content of milk according to Kjeldahl and calculation of crude protein content

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, 1 ratio of protein to nitrogen

  • GB/T 24318-2009 Determination of total nitrogen content in animal feeding stuffs by combustion according to the Dumas principle and calculation of the crude protein content

Korean Agency for Technology and Standards (KATS), 1 ratio of protein to nitrogen

  • KS K ISO 20418-1:2022 Textiles — Qualitative and quantitative proteomic analysis of some animal hair fibres — Part 1: Peptide detection using LC-ESI-MS with protein reduction

KR-KS, 1 ratio of protein to nitrogen

  • KS K ISO 20418-1-2022 Textiles — Qualitative and quantitative proteomic analysis of some animal hair fibres — Part 1: Peptide detection using LC-ESI-MS with protein reduction

  1 ratio of protein to nitrogen.

 



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