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Kjeldahl method

Kjeldahl method, Total:106 items.

In the international standard classification, Kjeldahl method involves: Water quality, Coals, Milk and milk products, Animal feeding stuffs, Fruits. Vegetables, Soil quality. Pedology, General methods of tests and analysis for food products, Beverages, External water conveyance systems, Sugar. Sugar products. Starch, Cereals, pulses and derived products, Fertilizers, Organic chemicals, Lubricants, industrial oils and related products, Raw materials for rubber and plastics, Plastics, Analytical chemistry.


IN-BIS, Kjeldahl method

Group Standards of the People's Republic of China, Kjeldahl method

  • T/QAS 071-2021 Determination of total nitrogen in brine Kjeldahl method
  • T/NAIA 044-2021 Urine Total Nitrogen Determination in Livestock Kjeldahl Method
  • T/NAIA 001-2020 Determination of ammoniacal nitrogen in fermented feed Kjeldahl method
  • T/NAIA 060-2021 Determination of true protein in feed Kjeldahl method

International Organization for Standardization (ISO), Kjeldahl method

Jilin Provincial Standard of the People's Republic of China, Kjeldahl method

  • DB22/T 1932-2013 Determination method of total nitrogen content in peat (Kjeldahl method)
  • DB22/T 1995-2014 Determination of feed grade choline chloride content Kjeldahl method

Association Francaise de Normalisation, Kjeldahl method

  • NF V04-211:1971 MILK. DETERMINATION OF TOTAL NITROGEN CONTENT. (KJELDAHL METHOD).
  • NF EN 12135:1997 Jus de fruits et de légumes - Dosage de l'azote - Méthode de Kjeldahl.
  • NF ISO 11261:1995 Qualité du sol - Dosage de l'azote total - Méthode de Kjeldahl modifiée.
  • NF EN ISO 3188:1994 Amidons, fécules et produits dérivés - Dosage de l'azote selon la méthode de Kjeldahl - Méthode titrimétrique.
  • NF ISO 1871:2009 Produits alimentaires et aliments des animaux - Lignes directrices générales pour le dosage de l'azote selon la méthode de Kjeldahl
  • NF EN ISO 20483:2014 Céréales et légumineuses - Détermination de la teneur en azote et calcul de la teneur en protéines brutes - Méthode de Kjeldahl
  • NF EN 13654-1:2002 Amendements du sol et supports de culture - Détermination de l'azote - Partie 1 : méthode de Kjeldahl modifiée
  • NF EN ISO 5378:1994 Amidons, fécules et produits dérivés - Dosage de l'azote selon la méthode de Kjeldahl - Méthode spectrophotométrique.
  • 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 EN ISO 8988:2006 Plastiques - Résines phénoliques - Détermination de la teneur en hexaméthylènetétramine - Méthode Kjeldahl, méthode à l'acide perchlorique et méthode à l'acide chlorhydrique

Korean Agency for Technology and Standards (KATS), Kjeldahl method

  • KS E ISO 333-2003(2013) Coal-Determination of nitrogen-Semi-micro Kjeldahl method
  • KS I ISO 11261-2008(2018) Soil quality-Determination of total nitrogen-Modified Kjeldahl method
  • KS I ISO 11261-2008(2021) Soil quality-Determination of total nitrogen-Modified Kjeldahl method
  • KS M ISO 6851-2002(2017) Photography-Processing waste-Determination of total amino nitrogen-Microdiffusion Kjeldahl method
  • KS H ISO 3188-2008(2018) Starches and derived products-Determination of nitrogen content by the Kjeldahl method-Titrimetric method
  • KS H ISO 5378-2008(2018) Starches and derived products-Determination of nitrogen content by the Kjeldahl method-Spectrophotometric method
  • KS H ISO 1871-2013(2018) Agricultural food products ― General directions for the determination of nitrogen by the Kjeldahl method
  • KS M ISO 24698-2:2010 Rubber, raw-Determination of bound acrylonitrile content in acrylonitrile-butadiene rubber(NBR)-Part 2:Kjeldahl method
  • KS M ISO 8988-2010(2020) Plastics-Phenolic resins-Determination of hexamethylenetetramine content-Kjeldahl method, perchloric acid method and hydrochloric acid method

VN-TCVN, Kjeldahl method

  • TCVN 6498-1999 Soil quality.Determination of total nitrogen.Modifierd Kejldahl method

RU-GOST R, Kjeldahl method

  • GOST 34111-2017 Juice products. Determination of nitrogen content by Kjeldahl method
  • GOST 26889-1986 Food-stuffs and food additives. General directions for the determinations of nitrogen content by the Kjeldahl method
  • GOST R 55246-2012 Milk and milk products. Determination of non-protein nitrogen content by Kjeldahl method

国家市场监督管理总局、中国国家标准化管理委员会, Kjeldahl method

  • GB/T 6432-2018 Determination of crude protein in feeds—Kjeldahl method

ZA-SANS, Kjeldahl method

  • SANS 333:1996 Coal - Determination of nitrogen - Semi-micro Kjeldahl method

Association of Official Analytical Chemists (AOAC), Kjeldahl method

  • AOAC 991.20 AOAC Official Method 991.20 Nitrogen (Total) in Milk Kjeldahl Methods

Danish Standards Foundation, Kjeldahl method

  • DS/EN 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
  • DS 242:1988 Water quality. Kjeldahl-nitrogen. Kjeldahl-method
  • DS/EN ISO 8968-1:2002 Milk - Determination of nitrogen content - Part 1: Kjeldahl method
  • DS/EN ISO 3188:1995 Starches and derived products - Determination of nitrogen content by the Kjeldahl method - Titrimetric method
  • DS/ISO 1871:2009 Food and feed products - General guidelines for the determination of nitrogen by the Kjeldahl method
  • DS/EN ISO 5378:1995 Starches and derived products - Determination of nitrogen content by the Kjeldahl method - Spectrophometric method
  • DS/EN ISO 20483:2007 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
  • DS/EN 13654-1:2002 Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method
  • 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/EN ISO 8988:2007 Plastics - Phenolic resins - Determination of hexamethylenetetramine content - Kjeldahl method, perchloric acid method and hydrochloric acid method

Lithuanian Standards Office , Kjeldahl method

  • LST EN 12135-2001 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
  • LST EN ISO 8968-1:2002 Milk - Determination of nitrogen content - Part 1: Kjeldahl method (ISO 8968-1:2001)
  • LST EN ISO 3188:2000 Starches and derived products - Determination of nitrogen content by the Kjeldahl method - Titrimetric method (ISO 3188:1978)
  • LST EN 13654-1-2002 Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method
  • LST EN ISO 5378:2000 Starches and derived products - Determination of nitrogen content by the Kjeldahl method - Spectrophotometric method (ISO 5378:1978)
  • LST EN ISO 20483:2007 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2006)
  • 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 8988:2007 Plastics - Phenolic resins - Determination of hexamethylenetetramine content - Kjeldahl method, perchloric acid method and hydrochloric acid method (ISO 8988:2006)
  • 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)

AENOR, Kjeldahl method

  • UNE-EN 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
  • UNE 77318:2001 Soil quality. Determination of total nitrogen. Modified Kjeldahl method.
  • UNE-EN ISO 3188:1995 STARCHES AND DERIVED PRODUCTS. DETERMINATION OF NITROGEN CONTENT BY THE KJELDAHL METHOD. TITRIMETRIC METHOD. (ISO 3188:1978).
  • UNE-EN 13654-1:2002 Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method
  • 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)
  • 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 8988:2007 Plastics - Phenolic resins - Determination of hexamethylenetetramine content - Kjeldahl method, perchloric acid method and hydrochloric acid method (ISO 8988:2006)

German Institute for Standardization, Kjeldahl method

  • DIN EN 12135:1997-12 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method; German version EN 12135:1997
  • DIN 51722-1:1990-07 Testing of solid fuels; determination of nitrogen content; semi-micro Kjeldahl method
  • DIN EN ISO 3188:1994-10 Starches and derived products - Determination of nitrogen content by the Kjeldahl method - Titrimetric method (ISO 3188:1978); German version EN ISO 3188:1994
  • 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); German version EN ISO 20483:2013
  • DIN EN ISO 5378:1994-10 Starches and derived products - Determination of nitrogen content by the Kjeldahl method - Spectrophotometric method (ISO 5378:1978); German version EN ISO 5378:1994
  • DIN EN 13654-1:2002-01 Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method; German version EN 13654-1:2001
  • 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 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 8988:2006-11 Plastics - Phenolic resins - Determination of hexamethylenetetramine content - Kjeldahl method, perchloric acid method and hydrochloric acid method (ISO 8988:2006); German version EN ISO 8988:2006
  • DIN EN ISO 20483:2014 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2013); German version EN ISO 20483:2013

GOSTR, Kjeldahl method

  • GOST 34454-2018 Dairy products. Determination of protein content by the Kjeldahl method
  • GOST 34536-2019 Milk and milk products. Determination of mass fraction of whey proteins by Kjeldahl method

International Dairy Federation (IDF), Kjeldahl method

  • IDF 20-1-2001 Milk - Determination of nitrogen content - Part 1: Kjeldahl method

British Standards Institution (BSI), Kjeldahl method

  • BS 7755-3.7:1995 Soil quality. Chemical methods. Determination of total nitrogen. Modified Kjeldahl method
  • BS ISO 6851:2001 Photography. Processing waste. Determination of total amino nitrogen (microdiffusion Kjeldahl method)
  • DD ISO/TS 17837:2008 Milk and milk products. Determination of nitrogen content and crude protein calculation. Kjeldahl method
  • BS ISO 24698-2:2018 Rubber, raw. Determination of bound acrylonitrile content in acrylonitrile-butadiene rubber (NBR) - Kjeldahl method
  • BS ISO 24698-2:2008 Rubber, raw - Determination of bound acrylonitrile content in acrylonitrile-butadiene rubber (NBR) - Kjeldahl method

Indonesia Standards, Kjeldahl method

未注明发布机构, Kjeldahl method

  • BS EN ISO 3188:1994(1999) Starches and derived products — Determination of nitrogen content by the Kjeldahl method — Titrimetric method
  • BS EN ISO 5378:1994(1999) Starches and derived products — Determination of nitrogen content by the Kjeldahl method — Spectrometric method
  • DIN EN ISO 8968-1:2002 Milk — Determination of nitrogen content — Part 1: Kjeldahl method (ISO 8968-1:2001)
  • BS EN ISO 5983-1:2005(2009) Animal feeding stuffs — Determination of nitrogen content and calculation of crude protein content — Part 1 : Kjeldahl method

BE-NBN, Kjeldahl method

  • NBN T 91-255-1976 Water analysis methods - Determination of the ammoniacal and organic nitrogen - (Kjeldahl nitrogen)
  • NBN-EN ISO 5378:1994 Starches and derived products - Determination of nitrogen content by the Kjeldahl method - Spectrophotometric method (ISO 5378:1978)

BG-BDS, Kjeldahl method

  • BGC ISO 5983:2001 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Kjeldahl method

Ningxia Provincial Standard of the People's Republic of China, Kjeldahl method

European Committee for Standardization (CEN), Kjeldahl method

  • CEN EN 13654-1-2001 Soil Improvers and Growing Media - Determination of Nitrogen - Part 1: Modified Kjeldahl Method

PT-IPQ, Kjeldahl method

  • NP 1986-1991 Milks Determination of protein content. Kjeldahl technique

American Society for Testing and Materials (ASTM), Kjeldahl method

  • ASTM E258-67(2002) Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
  • ASTM D3228-22 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
  • ASTM E147-61(2017) Standard Specification for Apparatus for Microdetermination of Nitrogen by Kjeldahl Method

ES-UNE, Kjeldahl method

  • 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)

TH-TISI, Kjeldahl method

  • TIS 2255.1-2005 Animal feeding stuff s-determination of nitrogen content and calculation of crude protein content.part 1: kjeldahl method

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会, Kjeldahl method

  • GB/T 33317-2016 Plastics—Phenolic resins—Determination of hexamethylenetetramine content—Kjeldahl method,perchloric acid method and hydrochloric acid method

CZ-CSN, Kjeldahl method

  • CSN 56 0020-1987 General directions for the determination f nitrogen by the Kjeldahl method

Professional Standard - Petrochemical Industry, Kjeldahl method

  • SH/T 1157.2-2015 Rubber, raw.Determination of bound acrylonitrile content in acrylonitrile-butadiene rubber (NBR).Part 2:Kjeldahl method

Professional Standard - Commodity Inspection, Kjeldahl method

  • SN/T 3470.2-2013 Rubber,raw.Determination of bound acrylonitrile content in acrylonitrile-butadiene rubber(NBR).Part 2:Kjeldahl method

IT-UNI, Kjeldahl method





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