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Determination method and principle of total nitrogen

Determination method and principle of total nitrogen, Total:500 items.

In the international standard classification, Determination method and principle of total nitrogen involves: Crude petroleum, Petroleum products in general, External water conveyance systems, Water quality, Fertilizers, Analytical chemistry, Milk and milk products, Soil quality. Pedology, Animal feeding stuffs, Non-ferrous metals, Fruits. Vegetables, Beverages, General methods of tests and analysis for food products, Organic chemicals, Lubricants, industrial oils and related products, Fuels, Air quality, Meat, meat products and other animal produce, Wastes, Spices and condiments. Food additives, Inorganic chemicals, Metalliferous minerals, Bearings, Refractories, Ferrous metals, Textile fibres, Products of the chemical industry, Textile auxiliary materials, Ferroalloys, Edible oils and fats. Oilseeds, Non-metalliferous minerals, Coals, Plastics, Radiation measurements, Cereals, pulses and derived products, Construction materials, Cellular materials, Vocabularies, Quality, Metrology and measurement in general, Continuous handling equipment, Powder metallurgy, Protection of and in buildings, Paints and varnishes, Information technology (IT) in general, Testing of metals, Particle size analysis. Sieving, Non-destructive testing, Laboratory medicine, Farming and forestry, Raw materials for rubber and plastics, Integrated circuits. Microelectronics, Products of the textile industry, Mining and quarrying, Measurement of volume, mass, density, viscosity, Paint ingredients, Food products in general, Equipment for petroleum and natural gas industries, Transport, Ergonomics, Insulating materials, Microbiology, Ceramics.

Japanese Industrial Standards Committee (JISC), Determination method and principle of total nitrogen

JIS K 2609:1990 Crude petroleum and petroleum products -- Determination of nitrogen content
JIS H 1653:1991 Methods for determination of nitrogen in zirconium and zirconium alloys
JIS K 0227:1984 Analytical method for trace nitrogen oxides in diluent gas and zero gas
JIS K 2258:1987 Testing method for vapor pressure of crude oil and petroleum products (reid method)
JIS K 2272:1985 Testing methods for ash and sulfated ash of crude oil and petroleum products
JIS K 2270:1990 Crude petroleum and petroleum products -- Determination of carbon residue
JIS A 1125:2001 Methods of test for total moisture content of aggregate and surface moisture in aggregate by drying
JIS K 0400-66-20:1998 Water quality -- Determination of total mercury by flameless atomic absorption spectrometry -- Part 2: Method after pretreatment with ultraviolet radiation
JIS Z 8402-1:1999 Accuracy (trueness and precision) of measurement methods and results -- Part 1: General principles and definitions
JIS K 0400-66-30:1998 Water quality -- Determination of total mercury by flameless atomic absorption spectrometry -- Part 3: Method after digestion with bromine
JIS K 2283:2000 Crude petroleum and petroleum products -- Determination of kinematic viscosity and calculation of viscosity index from kinematic viscosity

GOSTR, Determination method and principle of total nitrogen

GOST R 58596-2019 Soils. Methods for determination of total nitrogen
GOST 33815-2016 Wine products and raw materials for it’s production. Method for determination of mass concentration of total and the reduced extract
GOST 32081-2013 The alcohol production and raw material for it producing. Method for determination of relative density

Indonesia Standards, Determination method and principle of total nitrogen

SNI 4146-2013
SNI 2372.2-2011 Cara uji fisika - Bagian 2: Penentuan bobot tuntas pada produk perikanan
SNI 19-7117.19-2009

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Determination method and principle of total nitrogen

GB/T 2441.1-2001 Determination of urea-Determination of total nitrogen content
GB/T 21318-2009 Determination of total nirogen content in animal feeding stuffs by combustion according to the Dumas principle and calculation o the crude protein content
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
GB/T 2441.1-2008 Determination of urea.Part 1:Total nitrogen content
GB/T 17674-1999 Determination of nitrogen in petroleum and petroleum products by chemiluminescence method
GB 9170-1988 Determination method of total nitrogen content in lubricating oil and fuel oil (improved Kjeldahl method)
GB/T 9170-1988 Lubricating oils and fuel oils--Determination of total nitrogen--Modified kjeldahl method
GB/T 23952-2009 Inorganic chemicals for industrial use.General method for the determination of total nitrogen content.Distillation-acid-base titrations method
GB/T 10209.1-2008 Determination of monoammonium phosphate and diammonium phosphate.Part 1:Total nitrogen content
GB/T 17767.1-2008 Determination of organic-inorganic compound fertilizers.Part 1:Total nitrogen content
GB 223.49-1985 Methods for chemical analysis of iron,steel and alloy--The extraction separation-chlorophosphonazo mA photometric method for the determination of rare earth elements
GB/T 6987.24-2001 Aluminium and aluminium alloys--Determination of the cerium subgroup of rare earth elements content--Tribromoarsenazo spectrophotometric method
GB/T 223.49-1994 Methods for chemical analysis of iron,steel and alloy. Extraction separation-chlorophosphonazo mA spectrophotometric method for the determination of the total rare tarth content
GB/T 4698.7-2011 Methods for chemical analysis of titanium sponge, titanium and titanium alloys.Determination of oxygen and nitrogen content
GB/T 5543-1985 Resin finishing agent--Determination of total formaldehyde content
GB 5543-1985 Resin finishing agent－Determination of total formaldehyde content
GB/T 23772-2009 Inorganic chemicals for industrial use.General method for the determination of total nitrogen content.Nessler's reagent colorimetric method
GB/T 16480.5-1996 Method for chemical analysis of yttrium and yttium oxide--Determination of nitrogen content
GB/T 6609.35-2023 Methods of chemical analysis and determination of physical properties of alumina Part 35: Determination of specific surface area Nitrogen adsorption method
GB/T 6609.35-2009 Chemical analysis methods and determination of physical performance of alumina-Part 35: Determination of specific surface area by nitrogen adsorption
GB/T 12690.17-1990 Rare-earth metals and their oxides--Determination of calcium content--Nitrous oxide-acetylene flame atomic absorption spectrometric method
GB/T 8857-1988 Method for determination of total ash and of alkalinity of total ash and water-soluble ash in fruit and vegetable products
GB/T 13748.9-2005 Chemical analysis methods of magnesium and magnesium alloys.Determination of iron content.Orthopenanthroline spectrophotometric method
GB/T 3253.2-2008 Methods for chemical analysis of antimony and antimony trioxide.Determination of iron content.Orthophenanthroline spectrophotometric method
GB/T 12689.11-2004 The methods for chemical analysis of zinc and zinc alloys-The determination of lanthanum and cerium contents-The tri-bromide arsenazo spectrophotometric method
GB/T 12689.2-2004 The methods for chemical analysis of zinc and zinc alloys-The determination of arsenic content-The atomic fluorescence spectrometer method
GB/T 3286.4-2012 Methods for chemical analysis of limestone and dolomite.Part 4:The determination of iron oxide content.The o-phenanthroline spectrophotometric method and the flame atomic absorption spectrometric method
GB/T 14635-2008 Rare earth metals and their compounds.Determination of total rare earth contents
GB/T 20975.24-2008 Methods for chemical analysis of aluminium and aluminium alloys.Part 24: Determination of total rare earth contents
GB/T 12689.9-2004 The methods for chemical analysis of zinc and zinc alloys-The determination of antimony content-The atomic fluorescence spectrometer and the flame atomic absorption spectrometric method
GB/T 3253.6-2008 Methods for chemical analysis of antimony and antimony trioxide.Determination of selenium content.Atomic fluorenscence spectrophotometric method
GB/T 12689.7-2004 The methods for chemical analysis of zinc and zinc alloys-The determination of magnesium content-The flame atomic absorption spectrometric method
GB/T 3253.10-2009 Methods for chemical analysis of antimony and antimony trioxide.Determination of mercury content.Atomic fluorescence spectrometric method
GB/T 3253.11-2009 Methods for chemical analysis of antimony and antimony trioxide.Determination of bismuth content.Flame atomic absorption spectrometric method
GB/T 3253.7-2009 Methods for chemical analysis of antimony and antimony trioxide.Determination of bismuth content.Atomic fluorescence spectrometric method
GB/T 12689.3-2004 The methods for chemical analysis of zinc and zinc alloys-The determination of cadmium content-The flame atomic absorption spectrometric method
GB/T 20975.4-2008 Methods for chemical analysis of aluminium and aluminium alloys.Part 4: Determination of iron content.Orthopenanthroline photometric method
GB/T 12843-1991 General principle of measuring methods of microprocessors and peripheral interface circuits' parameters for semiconductor integrated circuits
GB 12843-1991 Basic principles of electrical parameter testing methods for semiconductor integrated circuit microprocessors and peripheral interface circuits
GB/T 13748.3-2005 Chemical analysis methods of magnesium and magnesium alloys.Determination of lithium content.Flame atomic absorption spectrometric method
GB/T 13748.6-2005 Chemical analysis methods of magnesium and magnesium alloys.Determination of silver content.Flame atomic absorption spectrophotometric method
GB/T 13748.13-2005 Chemical analysis methods of magnesium and magnesium alloys.Determination of lead content.Flame atomic absorption spectrophotometric method
GB/T 13748.16-2005 Chemical analysis methods of magnesium and magnesium alloys.Determination of calcium content.Flame atomic absorption spectrometric method
GB/T 17063-1997 Workplace air--Determination of antimony and its compounds--Flame atomic absorption spectroscopy
GB/T 16021-1995 Workplace air--Determination of nickel and its compounds--Flame atomic absorption spectrophotometric method
GB/T 16018-1995 Workplace air--Determination of manganese and its compounds--Flame atomic absorption spectrophotometric method
GB/T 16022-1995 Workplace air--Determination of cobalt and its compounds--Flame atomic absorption spectrophotometric method
GB/T 3253.3-2008 Methods for chemical analysis of antimony and antimony trioxide.Determination of lead content.Flame atomic absorption spectrophotometric method
GB/T 3253.5-2008 Methods for chemical analysis of antimony and antimony trioxide.Determination of copper content.Flame atomic absorption spectrophotometric method
GB/T 3253.9-2009 Methods for chemical analysis of antimony and antimony trioxide.Determination of cadmium conten.Flame atomic absorption spectrometric method
GB/T 12392-1990 Method for determination of total ascorbic acid in fruits,vegetables and derived products--Fluorometric method and colorimetric method
GB/T 6609.19-2018 Chemical analysis methods and determination of physical performance of alumina.Part 19:Determination of lithium oxide content.Flame atomic absorption spectrometry method
GB/T 17062-1997 Workplace air--Determination of tin and its inorganic compounds--Flame atomic absorption spectroscopy
GB/T 4103.14-2009 Methods for chemical analysis of lead and lead alloys.Part 14:Determination of cadmium conten.Flame atomic absorption spectrophotometry
GB/T 4103.15-2009 Methods for chemical analysis of lead and alloys.Part 15:Determination of nickel content.Flame atomic absorption spectrophotometry
GB/T 20975.1-2007 Chemical analysis methods of aluminium and aluminium alloys Part 1: Determination of mercury content Cold atomic absorption spectrometric method
GB/T 12689.7-2010 Methods for chemical analysis of zinc and zinc alloys—Part 7:Determination of magnesium content—Flame atomic absorption spectrometric method

RU-GOST R, Determination method and principle of total nitrogen

GOST 10671.4-2016 Reagents. Methods for determination of total nitrogen impurity
GOST R 51620-2000 The alcohol production and raw material for it producing. Method of total extract determination
GOST 30181.4-1994 Mineral fertilizers. Method for determination of total mass fraction of nitrogen in compound fertilizers and nitrale fertilizers in ammonium and nitrate forms (Deward Method)
GOST 30181.9-1994 Mineral fertilizers. Method for determination of total mass fraction of nitrogen in compound fertilizers (distillation method using the chromium reduction of nitrate nitrogen and mineralization of organic nitrogen)
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 EN 15750-2016 Fertilizers. Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
GOST R 51655-2000 Alcohol products and raw material for it's production. Method for determination of free and total sulphurous acid mass concentration
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
GOST 32985-2014 Solid biofuels. Determination of carbon, hydrogen and nitrogen by instrumental methods
GOST R 54216-2010 Solid biofuels. Determination of total content of carbon, hydrogen and nitrogen by instrumental methods
GOST 15848.4-1970 Choromium ores and concentrates. Methods for determination of total carbon
GOST 30181.7-1994 Mineral fertilizers. Method for determination of total mass fraction of nitrogen in compound fertilizers (in ammonium and amide forms, using hypochlorite method)
GOST 32000-2012 The alcohol production and raw material for it producing. Method of total extract determination
GOST 31950-2012 Water. Method for determination of total mercury by flameless atomic absorption spectrometry
GOST R 52962-2008 Water. Methods for determination of chromium (VI) and total chromium
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 R 50466-1993 Fodder, mixed fodder and animal feed raw stuff. Methods of nitrogen and crude protein determination
GOST R 51621-2000 The alcohol production and raw material for it producing. Methods for determination of titrating acids
GOST R 51212-1998 Drinking water. Methods for determination of total mercury by flameless atomic absorption spectrometry
GOST 23260.3-1978 Marble. Method for the determination of calcium oxide and magnesium oxide, soluble in water
GOST R 51653-2000 The alcohol production and raw material for it producing. Method of ethyl aicohol determination
GOST 2642.8-2017 Refractories and refractory raw materials. Methods for determination of magnesium oxide
GOST 2642.7-2017 Refractories and refractory raw materials. Methods for determination of calcium oxide
GOST R 51730-2001 Drinking water. Method for determination of summary specific radio-nuclei alpha-activity
GOST 31864-2012 Drinking water. Method for determination of summary specific radio-nuclei alpha-activity
GOST 32115-2013 The alcohol production and raw material for it producing. Method for determination of free and total sulphurous acid
GOST 13496.20-1987 Mixed fodders, raw stuff for mixed fodders. Method for determining residual quantities of pesticides
GOST 13496.18-1985 Mixed fodder and fodder raw stuff. Methods for determination of fat acid value
GOST 2642.6-2017 Refractories and refractory raw materials. Methods for determination of titanium (IV) oxide
GOST R 51422-1999 Feedstuffs, compound feeds, feed raw materials. Method for determination of urea fraction of total mass
GOST R 51619-2000 The alcohol production and raw material for it producing. Method for determination of relative density
GOST R 51654-2000 The alcohol production and raw material for it producing. Method of volatile acids determination
GOST R 50279.10-1992 Paints and varnishes. Test methods of metal content. Determination of total lead. Flame atomic absorption spectrometric method
GOST R 51425-1999 Feedstuffs, compound feeds, feed raw materials. Method for determination of zearalenone fraction of total mass
GOST R 51418-1999 Feedstuffs, compound feeds, feed raw materials. Methods for determination of ash fraction of total mass insoluble in hydrochloric acid
GOST 2409-1995 Refractories. Method for determination of bulk density apparent and true porosity, water absorbtion
GOST R 55229-2012 Food additives. Colorimetric method for total phosphorus mass content determination in raw materials for citric acid production
GOST 30157.0-1995 Textile fabrics. Methods of measures changes determination after wet treatments and chemical cleaning. General
GOST R 56495-2015 Air transport. Safety management system of helicopter activity. Acceptable risk. Principles and methods of determination. Basic provisions
GOST R 51823-2001 Alcoholic products and raw material for it's production. Inversion-voltammetric method for determination of cadmium, lead, zinc, copper, arsenic, mercury, iron and total sulphur dioxide content
GOST 20264.1-1989 Enzyme preparations. Methods for the determination of organoleptic, physico-chemical and microbiological points
GOST R 52221-2004 Nonwoven fabrics. Methods of determination of the heat resistance and the linear dimensions change after thermal treatment

Korean Agency for Technology and Standards (KATS), Determination method and principle of total nitrogen

KS M 2112-2011 Crude petroleum and petroleum products-Determination of nitrogen content
KS D 2530-2016 Methods for determination of nitrogen in titanium and titanium alloys
KS D 2573-1995 Methods for determination of nitrogen in zirconium and zirconium alloys
KS D 2573-2015 Methods for determination of nitrogen in zirconium and zirconium alloys
KS D 2530-2021 Methods for determination of nitrogen in titanium and titanium alloys
KS H ISO 1871-2013(2018) Agricultural food products ― General directions for the determination of nitrogen by the Kjeldahl method
KS L ISO 21068-3-2012(2017) Chemical analysis of silicon-carbide-containing raw materials and refractory products－Part 3：Determination of nitrogen, oxygen and metallic and oxidic constituents
KS I ISO 13395:2008 Water quality-Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
KS M 9102-1996(2001) WATER QUALITY-DETERMINATION OF TOTAL MERCURY BY FLAMELESS ATOMIC ABSORPTION SPECTROMETRY(METHOD AFTER PRETREATMENT WITH ULTRAVIOLET RADITION)
KS E ISO 7990-2002(2017) Manganese ores and concentrates－Determination of total iron content－Titrimetric method after reduction and sulfosalicylic acid spectrophotometric method
KS D ISO 4491-4-2003(2018) Metallic powders - Determination of oxygen content by reduction methods Part 4 : Total oxygen by reduction-extraction
KS M 9103-1996(2001) WATER QUALITY- DETERMINATION OF TOTAL MERCURY BY FLAMELESS ATOMIC ABSORPTION SPECTROMERTY(METHOD AFTER DIGESTION WITH BROMIN)
KS E ISO 2597-2:2009 Iron ores－Determination of total iron content－Part 2：Titrimetric methods after titanium(III) chloride reduction
KS A ISO 13318-1:2014 Determination of particle size distribution by centrifugal liquid sedimentation methods — Part 1: General principles and guidelines
KS A ISO 13318-1:2003 Determination of particle size distribution by centrifugal liquid sedimentation methods-Part 1:General principles and guidelines
KS T 1321-2007 Testing method for retention of fines fraction of paper stock
KS M 6638-2016(2021) Determination methods of total solids, pH and viscosity and judgement of degree of precure of compounded latices
KS M 6638-1982 Determination methods of total solids, pH and viscosity and judgement of degree of precure of compounded latices
KS A ISO 5725-1:2012 Accuracy(trueness and precision) of measurement methods and results-Part 1:General principles and definitions
KS M 6638-2016 Determination methods of total solids, pH and viscosity and judgement of degree of precure of compounded latices
KS I 20552-2010 Workplace air-Determination of mercury vapour-Method using gold-amalgam collection and analysis by atomic absorption spectrometry or atomic fluorescence spectrometry

Standard Association of Australia （SAA）, Determination method and principle of total nitrogen

AS 2300.1.2.2:1988 Methods of chemical and physical testing for the dairying industry - General methods and principles - Determination of nitrogen - Nitrogen fractions from milk
AS 2300.1.2.2:2008 Methods of chemical and physical testing for the dairying industry Method 1.2.2: General methods and principles- Determination of nitrogen—Nitrogen fractions from milk
AS 2300.1.2.1:1991 Methods of chemical and physical testing for the dairying industry - General methods and principles - Determination of nitrogen - Reference Kjeldahl method
AS 2300.1.1:2008
AS 2300.1.1:1988 Methods of chemical and physical testing for the dairying industry - General methods and principles - Determination of total solids and moisture
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 2300.1.5:1988 Methods of chemical and physical testing for the dairying industry - General methods and principles - Determination of ash
AS 2300.1.6:1989 Methods of chemical and physical testing for the dairying industry - General methods and principles - Determination of pH
AS 2300.1.3:1988 Methods of chemical and physical testing for the dairying industry - General methods and principles - Determination of fat - Gravimetric method
AS 2300.1.10:2008 Methods of chemical and physical testing for the dairying industry Method 1.10: General methods and principles— Determination of phosphatase activity
AS 2300.1.3:2008
AS 2300.1.6:2010
AS 2300.2.10:1988 Methods of chemical and physical testing for the dairying industry - Liquid milks - Determination of titratable acidity
AS 2300.2.7:1988 Methods of chemical and physical testing for the dairying industry - Liquid milks - Determination of calcium
AS 2300.2.8:1988 Methods of chemical and physical testing for the dairying industry - Liquid milks - Determination of chloride
AS 2300.2.9:1988 Methods of chemical and physical testing for the dairying industry - Liquid milks - Determination of phosphorus
AS 2300.5.3:1991 Methods of chemical and physical testing for the dairying industry - Condensed milk - Determination of total milk solids
AS 2300.1.5:2008
AS 2434.1:1999(R2013)
AS 2300.1.10:1988 Methods of chemical and physical testing for the dairying industry - General methods and principles - Determination of phosphatase activity
AS 2300.2.6:1988 Methods of chemical and physical testing for the dairying industry - Liquid milks - Determination of lactose
AS 2300.1.9:2008 Methods of chemical and physical testing for the dairying industry Method 1.9: General methods and principles— Determination of sucrose and glucose— Enzymatic method
AS 2300.1.9:1987 Methods of chemical and physical testing for the dairying industry - General methods and principles - Determination of sucrose and glucose - Enzymatic method
AS 2300.1.7:1990 Methods of chemical and physical testing for the dairying industry - General methods and principles - Determination of extraneous matter in dairy products
AS 2365.1.1:1990(R2014)
AS 2365.1.1:1990 Methods for the sampling and analysis of indoor air - Determination of nitrogen dioxide - Spectrophotometric method - Treated mesh/passive tube sampling procedures
AS 2300.2.3:1981 Methods of chemical and physical testing for the dairying industry - Liquid milks - Determination of the iodide content of milk - Selective ion electrode method

British Standards Institution (BSI), Determination method and principle of total nitrogen

BS 7755-3.7:1995 Soil quality. Chemical methods. Determination of total nitrogen. Modified Kjeldahl method
BS 5551-4.1.3:1986 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of total nitrogen content (titrimetric method after distillation)
BS ISO 6851:2001 Photography. Processing waste. Determination of total amino nitrogen (microdiffusion Kjeldahl method)
BS EN 15750:2010 Fertilizers. Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
BS EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
BS ISO 937:2023 Meat and meat products. Determination of nitrogen content. Reference method
BS DD CEN/TS 15104:2006 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
BS DD CEN/TS 15104:2005 Solid biofuels — Determination of total content of carbon, hydrogen and nitrogen — Instrumental methods
BS EN ISO 14891:2002 Milk and milk products - Determination of nitrogen content - Routine method using combustion according to the Dumas principle
BS 7020-4.2:1990 Analysis of iron ores. Method for the determination of total iron content. Titanium (III) chloride reduction methods
BS 5551-4.1.4:1984 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide (titrimetric method)
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 - Part 1: Oilseeds and animal feeding stuffs
BS ISO 2597-2:2015 Iron ores. Determination of total iron content. Titrimetric methods after titanium(III) chloride reduction
BS ISO 2597-2:2008 Iron ores - Determination of total iron content - Titrimetric methods after titanium(III) chloride reduction
BS 6068-2.40:1991 Water quality. Physical, chemical and biochemical methods. Method for the determination of borate by spectrometry using azomethine-H
BS EN ISO 9029:1997 Methods of test for petroleum and its products. Crude petroleum. Determination of water. Distillation method
BS EN 16168:2012 Sludge, treated biowaste and soil. Determination of total nitrogen using dry combustion method
BS DD CEN ISO/TS 16634-2:2010 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 2000-356:1999 Methods of test for petroleum and its products. Crude petroleum. Determination of water. Potentiometric Karl Fischer titration method
BS 5551-3.4:1987 Fertilizers. Physical properties. Method for determination of oil retention of high nitrogen content, straight ammonium nitrate fertilizers
BS ISO 2597-2:2019 Tracked Changes. Iron ores. Determination of total iron content. Titrimetric methods after titanium(III) chloride reduction
BS 874-1:1986 Methods for determining thermal insulating properties - Introduction, definitions and principles of measurement
BS 2000-386:1999 Methods of test for petroleum and its products. Crude petroleum. Determination of water. Coulometric Karl Fischer titration method
BS 3900-D8:1986 Methods of test for paints. Optical tests on paint films. Determination of colour and colour difference: principles
DD ENV 14226:2002 Advanced technical ceramics. Test methods for ceramic powders. Determination of calcium, magnesium, iron and aluminium in silicon nitride by using flame atomic absorption spectroscopy (FAAS) or inductively coupled plasma atomic emission spectroscopy (I...
BS 6068-2.42:1993 Water quality. Physical, chemical and biochemical methods. Determination of sodium and potassium: determination of sodium by atomic absorption spectrometry
BS 6068-2.43:1993 Water quality. Physical, chemical and biochemical methods. Determination of sodium and potassium: determination of potassium by atomic absorption spectrometry
BS 2000-455:2011 Methods of test for petroleum and its products. Determination of the manganese content of gasoline. Atomic absorption spectrometry (AAS) method
BS 7020 Sec.4.2:1990 Analysis of iron ores. Method for the determination of total iron content. Titanium (III) chloride reduction methods
BS EN 241:2000 Methods of test for petroleum and its products - Liquid petroleum products - Determination of sodium content - Atomic absorption spectrometric method
BS 3900-B16:1990 Methods of test for paints. Tests involving chemical examination of liquid paints and dried paint films. Determination of total mercury
BS EN ISO 16634-2:2016 Tracked Changes. 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 20764:2003 Methods of test for petroleum and its products. Petroleum and related products. Preparation of a test portion of high-boiling liquids for the determination of water content. Nitrogen purge method
BS 5766-15:1997 Methods for analysis of animal feeding stuffs. Determination of soluble nitrogen content after treatment with pepsin in dilute hydrochloric acid
BS 6829-2.1:1988 Analysis of surface active agents (raw materials) - Alkane sulphonates - Method for determination of total alkaline sulphonates content
BS 2000-456:2000 Methods of test for petroleum and its products - Determination of potassium in gasoline - Atomic absorption spectrometry (AAS) method
BS 2000-455:2001 Determination of manganese in gasoline - Atomic absorption spectrometry (AAS) method
BS 5551 Sec.3.4:1987 Fertilizers. Physical properties. Method for determination of oil retention of high nitrogen content, straight ammonium nitrate fertilizers
BS 5551 SubSec.4.1.4:1984 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide (titrimetric method)
BS 2000-375:1999 Methods of test for petroleum and its products - Petroleum products - Total sediment in residual fuel oils - Determination by hot filtration
BS EN ISO 12185:1996 Methods of test for petroleum and its products. Crude petroleum and petroleum products. Determination of density. Oscillating U-tube method
BS EN 1936:2006 Natural stone test methods — Determination of real density and apparent density, and of total and open porosity
BS EN 1936:2007 Natural stone test methods - Determination of real density and apparent density, and of total and open porosity
BS 2000-143:2004 Methods of test for petroleum and its products. Determination of asphaltenes (heptane insolubles) in crude petroleum and petroleum products
BS EN 50414:2006 Test methods for analysis of lead in PVC taken from insulation and sheath of electric and optical fibre cables - Method A: Total lead content determination with flame excitation atomic absorption spectrometry - Method B: Qualitative analysis of lead by le
BS 6068 Sec.2.42:1993 Water quality. Physical, chemical and biochemical methods. Determination of sodium and potassium: determination of sodium by atomic absorption spectrometry
BS 6068 Sec.2.43:1993 Water quality. Physical, chemical and biochemical methods. Determination of sodium and potassium: determination of potassium by atomic absorption spectrometry
BS DD ENV 14226:2002 Advanced technical ceramics - Test methods for ceramic powders - Determination of calcium, magnesium, iron and aluminium in silicon nitride by using flame atomic absorption spectroscopy (FAAS) or inductively coupled plasma atomic emission spectroscopy (IC
BS EN ISO 3233-1:2013 Paints and varnishes. Determination of the percentage volume of non-volatile matter. Method using a coated test panel to determine non-volatile matter and to determine dry film density by the Archimedes principle

Hebei Provincial Standard of the People's Republic of China, Determination method and principle of total nitrogen

DB13/T 1224-2010 Determination method of total nitrogen in organic chemical products

American Society for Testing and Materials (ASTM), Determination method and principle of total nitrogen

ASTM D8001-16e1 Standard Test Method for Determination of Total Nitrogen, Total Kjeldahl Nitrogen by Calculation, and Total Phosphorus in Water, Wastewater by Ion Chromatography
ASTM D8001-16 Standard Test Method for Determination of Total Nitrogen, Total Kjeldahl Nitrogen by Calculation, and Total Phosphorus in Water, Wastewater by Ion Chromatography
ASTM E258-67(2002) Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM D3228-96 Standard Test Method for Total Nitrogen In Lubricating Oils and Fuel Oils By Modified Kjeldahl Method
ASTM D3228-01 Standard Test Method for Total Nitrogen In Lubricating Oils and Fuel Oils By Modified Kjeldahl Method
ASTM D3228-05 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D322-97(2002)e1 Standard Test Method for Gasoline Diluent in Used Gasoline Engine Oils by Distillation
ASTM D3228-03 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D3228-08 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D322-97(2016) Standard Test Method for Gasoline Diluent in Used Gasoline Engine Oils by Distillation
ASTM D3228-22 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D6556-00a Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-01a Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-01 Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM E258-67(1996)e1 Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM D6556-10 Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-04 Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption
ASTM D8083-16 Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection
ASTM D6556-07 Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-17 Standard Test Method for Carbon Black&x2014;Total and External Surface Area by Nitrogen Adsorption
ASTM D3228-20 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D6556-02 Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-02a Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D3228-19 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D3228-08(2019) Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM E258-07 Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM D6556-03 Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-09 Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-21 Standard Test Method for Carbon Black—Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-14 Standard Test Method for Carbon Blackmdash;Total and External Surface Area by Nitrogen Adsorption
ASTM D3228-08(2014) Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D5176-91(2003) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D5176-91(1995) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D5176-08 Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D5176-08(2015) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D8247-19 Standard Test Method for Determination of Total Fluorine and Total Chlorine in Coal by Oxidative Pyrohydrolytic Combustion Followed by Ion Chromatography Detection
ASTM D6556-16 Standard Test Method for Carbon Black&x2014;Total and External Surface Area by Nitrogen Adsorption
ASTM D4661-23 Standard Test Methods for Polyurethane Raw Materials: Determination of Total Chlorine in Isocyanates
ASTM D7623-20 Standard Test Method for Total Mercury in Crude Oil Using Combustion-Gold Amalgamation and Cold Vapor Atomic Absorption Method
ASTM D7623-10(2015) Standard Test Method for Total Mercury in Crude Oil Using Combustion-Gold Amalgamation and Cold Vapor Atomic Absorption Method
ASTM D3684-01 Standard Test Method for Total Mercury in Coal by the Oxygen Bomb Combustion/Atomic Absorption Method
ASTM D3684-94(2000) Standard Test Method for Total Mercury in Coal by the Oxygen Bomb Combustion/Atomic Absorption Method
ASTM D3684-01(2006) Standard Test Method for Total Mercury in Coal by the Oxygen Bomb Combustion/Atomic Absorption Method
ASTM D4661-98 Standard Test Methods for Polyurethane Raw Materials Determination of Total Chlorine in Isocyanates
ASTM D4661-18 Standard Test Methods for Polyurethane Raw Materials: Determination of Total Chlorine in Isocyanates
ASTM D4661-13 Standard Test Methods for Polyurethane Raw Materials: Determination of Total Chlorine in Isocyanates
ASTM D6979-13 Standard Test Method for Polyurethane Raw Materials: Determination of Basicity in Polyols, Expressed as Percent Nitrogen
ASTM D4468-85(2011) Standard Test Method for Total Sulfur in Gaseous Fuels by Hydrogenolysis and
Rateometric Colorimetry
ASTM D5622-95(2000) Standard Test Methods for Determination of Total Oxygen in Gasoline and Methanol Fuels by Reductive Pyrolysis
ASTM D5622-17 Standard Test Methods for Determination of Total Oxygen in Gasoline and Methanol Fuels by Reductive Pyrolysis
ASTM D4468-85(2000) Standard Test Method for Total Sulfur in Gaseous Fuels by Hydrogenolysis and Rateometric Colorimetry
ASTM D4468-85(2015) Standard Test Method for Total Sulfur in Gaseous Fuels by Hydrogenolysis and Rateometric Colorimetry
ASTM D6979-18 Standard Test Method for Polyurethane Raw Materials: Determination of Basicity in Polyols, Expressed as Percent Nitrogen
ASTM D8478-23 Standard Test Method for N-Hexane Recoverable Total Oil and Grease and Total Petroleum Hydrocarbons in Water by ATR-Infrared Determination
ASTM D5291-02(2007) Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D5291-02 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D7622-20 Standard Test Method for Total Mercury in Crude Oil Using Combustion and Direct Cold Vapor Atomic Absorption Method with Zeeman Background Correction
ASTM D7622-10(2015) Standard Test Method for Total Mercury in Crude Oil Using Combustion and Direct Cold Vapor Atomic Absorption Method with Zeeman Background Correction
ASTM E1409-05 Standard Test Method for Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique
ASTM E1409-08 Standard Test Method for Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique
ASTM D6979-03 Standard Test Method for Polyurethane Raw Materials: Determination of Basicity in Polyols, Expressed as Percent Nitrogen
ASTM D6979-08 Standard Test Method for Polyurethane Raw Materials: Determination of Basicity in Polyols, Expressed as Percent Nitrogen
ASTM D5622-95(2005) Standard Test Methods for Determination of Total Oxygen in Gasoline and Methanol Fuels by Reductive Pyrolysis
ASTM D5622-95(2011) Standard Test Methods for Determination of Total Oxygen in Gasoline and Methanol Fuels by Reductive Pyrolysis
ASTM D5373-14e2 Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke
ASTM D5622-16 Standard Test Methods for Determination of Total Oxygen in Gasoline and Methanol Fuels by Reductive Pyrolysis
ASTM E246-01 Standard Test Methods for Determination of Iron in Iron Ores and Related Materials by Dichromate Titration
ASTM E246-95 Standard Test Methods for Determination of Iron in Iron Ores and Related Materials by Dichromate Titration
ASTM E246-01(2005) Standard Test Methods for Determination of Iron in Iron Ores and Related Materials by Dichromate Titration
ASTM D4517-04(2009) Standard Test Method for Low-Level Total Silica in High-Purity Water by Flameless Atomic Absorption Spectroscopy
ASTM E607-90(1996) Standard Test Method for Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by the Point-to-Plane Technique, Nitrogen Atmosphere
ASTM E607-02 Standard Test Method for Atomic Emission Spectrometric Analysis Aluminum Alloys by the Point to Plane Technique Nitrogen Atmosphere
ASTM D4517-85(1999) Standard Test Method for Low-Level Total Silica in High-Purity Water by Flameless Atomic Absorption Spectroscopy
ASTM C559-90(2005) Standard Test Method for Bulk Density by Physical Measurements of Manufactured Carbon and Graphite Articles
ASTM D6069-01(2006) Standard Test Method for Trace Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
ASTM D6069-96 Standard Test Method for Trace Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
ASTM D6069-01 Standard Test Method for Trace Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
ASTM C1514-08 Standard Test Method for Measurement of ²³⁵U Fraction Using Enrichment Meter Principle
ASTM E841-12 Standard Test Method for Determination of Copper in Iron Ores and Related Materials by Atomic Absorption Spectrometry
ASTM D4661-03 Standard Test Methods for Polyurethane Raw Materials: Determination of Total Chlorine in Isocyanates
ASTM D4517-15(2023) Standard Test Method for Low-Level Total Silica in High-Purity Water by Flameless Atomic Absorption Spectroscopy
ASTM E1081-95a Standard Test Method for Determination of Total Iron in Iron Ores and Related Materials by Silver Reduction-Dichromate Titration (Withdrawn 2002)
ASTM D6584-10ae1 Standard Test Method for Determination of Total Monoglyceride, Total Diglyceride, Total Triglyceride, and Free and Total Glycerin in B-100 Biodiesel Methyl Esters by Gas Chromatography
ASTM D6584-10a Standard Test Method for Determination of Total Monoglyceride, Total Diglyceride, Total Triglyceride, and Free and Total Glycerin in B-100 Biodiesel Methyl Esters by Gas Chromatography
ASTM D6584-17 Standard Test Method for Determination of Total Monoglycerides, Total Diglycerides, Total Triglycerides, and Free and Total Glycerin in B-100 Biodiesel Methyl Esters by Gas Chromatography
ASTM E841-04 Standard Test Method for Determination of Copper in Iron Ores and Related Materials by Atomic Absorption Spectroscopy
ASTM E841-99 Standard Test Method for Determination of Copper in Iron Ores and Related Materials by Atomic Absorption Spectroscopy

CZ-CSN, Determination method and principle of total nitrogen

CSN 65 4836-1983 Minerál fertilizers Methode for determination of total nitrogen content
CSN 58 0703-7-1999 Testing methods of dehydrated products and seasonings - Part 7: Determinaton of total nitrogen
CSN ISO 7393-3:1995 Water quality. Determination of free chlorine and total chlorine. Part 3: Iodometric titration method for the determination of total chlorine
CSN ISO 2637:1992 Aluminium and its alloys. Determination of zinc. Atomic absorption method
CSN 46 7092-19-1998 Testing methods for feeding stuffs - Part 19: Determination of free, binded and total acidity in water extract
CSN 80 0059-1976 Methods of test for the determination of the e-lectrostatic properties of textile materials and the antistatic efficien- cy of finishes The direct accumulating method
CSN 46 7092-5-1998 Testing methods for feeding stuffs - Part 5: Determination of soluble nitrogen content after treatment with pepsin in hydrochloric acid solution

Professional Standard - Tobacco, Determination method and principle of total nitrogen

YC/T 33-1996 Tobacco and tobacco products-Determination of total nitrogen-Kjeldahl method
YC/T 161-2002 Tobacco and tobacco products----Determination of total nitrogen----Continuous flow method

German Institute for Standardization, Determination method and principle of total nitrogen

DIN EN 15750:2010-02 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version EN 15750:2009
DIN CEN/TS 15750:2008 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version CEN/TS 15750:2008
DIN 51732:2014-07 Testing of solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
DIN EN 16168:2012-11 Sludge, treated biowaste and soil - Determination of total nitrogen using dry combustion method; German version EN 16168:2012
DIN EN ISO 14891:2002-07 Milk and milk products - Determination of nitrogen content - Routine method using combustion according to the Dumas principle (ISO 14891:2002); German version EN ISO 14891:2002
DIN EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version EN 15750:2009
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 15104:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods; German version EN 15104:2011
DIN EN ISO 13395:1996 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection (ISO 13395:1996); German version EN ISO 13395:1996
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 54200:1974 Testing of textiles; quantitative analysis of fibre mixtures by means of solvent method, basis and field of application
DIN 66273-1:1991 Information processing; measurement and rating of data processing performance; measuring and rating method
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 16168:2012 Sludge, treated biowaste and soil - Determination of total nitrogen using dry combustion method; German version EN 16168:2012
DIN 51900-1:2000-04 Testing of solid and liquid fuels - Determination of gross calorific value by the bomb calorimeter and calculation of net calorific value - Part 1: Principles, apparatus, methods / Note: To be replaced by DIN 51900 (2022-06).
DIN-Fachbericht 143:2005 Modern rheological test methods - Part 1: Determination of the yield point - Fundamentals and comparative testing methods
DIN EN ISO 14238:2014-03 Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes (ISO 14238:2012); German version EN ISO 14238:2013
DIN EN 1936:2007-02 Natural stone test method - Determination of real density and apparent density, and of total and open porosity; German version EN 1936:2006
DIN 38409-27:1992 German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of total bound nitrogen TN<(Index)b> (H 27)
DIN EN ISO 16634-2:2016-11 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); German version EN ISO 16634...
DIN 51900-1:2000 Testing of solid and liquid fuels - Determination of gross calorific value by the bomb calorimeter and calculation of net calorific value - Part 1: Principles, apparatus, methods

AENOR, Determination method and principle of total nitrogen

UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).
UNE 84047:1995 COSMETIC RAW MATERIALS. DETERMINATION OF NITROGEN. KJEDHAL'S METHOD (SEMI-MICRO).
UNE-EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
UNE-EN ISO 14891:2002 Milk and milk products - Determination of nitrogen content - Routine method using combustion according to the Dumas principle. (ISO 14891:2002)
UNE-EN ISO 13395:1997 WATER QUALITY. DETERMINATION OF NITRITE NITROGEN AND NITRATE NITROGEN AND THE SUM OF BOTH BY FLOW ANALYSIS (CFA AND FIA) AND SPECTROMETRIC DETECTION. (ISO 13395:1996).
UNE 53985-4:2004 Plastics. Test methods for polyurethane raw materials. Polyols. Part 4: Determination of total unsaturation.
UNE 55581:1980 SURFACE ACTIVE AGENTS. SODIUM CARBONATE FOR USE AS RAW-MATERIAL IN DETERGENT FORMULATIONS. DETERMINATION OF TOTAL SOLUBLE ALKALINITY. TITRIMETRIC METHOD
UNE 55627:1983 SURFACE ACTIVE AGENTS. SODIUM AND POTASSIUM SILICATES TO BE USED AS RAW-MATERIALS IN DETERGENT FORMULATIONS. DETERMINATION OF TOTAL ALKALINITY. TITRIMETRIC METHOD

ES-AENOR, Determination method and principle of total nitrogen

PH-BPS, Determination method and principle of total nitrogen

PTS 98-1970 Standardization of the Method of Test for the Determination of Total Nitrogen Content.Devarda Method

Danish Standards Foundation, Determination method and principle of total nitrogen

DS/EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
DS/EN 16168:2013 Sludge, treated biowaste and soil - Determination of total nitrogen using dry combustion method
DS/EN ISO 14891:2002 Milk and milk products - Determination of nitrogen content - Routine method using combustion according to the Dumas principle
DS/ISO 29441:2010 Water quality - Determination of total nitrogen after UV digestion - Method using flow analysis (CFA and FIA) and spectrometric detection
DS/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

Lithuanian Standards Office , Determination method and principle of total nitrogen

LST EN 15750-2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
LST EN 16168-2012 Sludge, treated biowaste and soil - Determination of total nitrogen using dry combustion method
LST EN ISO 14891:2003 Milk and milk products - Determination of nitrogen content - Routine method using combustion according to the Dumas principle (ISO 14891:2002)
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)

VN-TCVN, Determination method and principle of total nitrogen

TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
TCVN 7113-3-2011 Ergonomic principles related to mental workload.Principles and requirements concerning methods for measuring and assessing mental workload

未注明发布机构, Determination method and principle of total nitrogen

BS 4267-2:1988(1999) Ammonium nitrate — Part 2 : Method for determination of total nitrogen content
BS 3338-2:1961(2011) Method for The determination of tin in ingot tin (Aluminium reduction method) — Methods for the sampling and analysis oftin and tin alloys
BS 3406-5:1983(1999) Methods for Determination of particle size distribution — Part 5 : Recommendations for electrical sensing zone method (the Coulter principle)
BS 3338-16:1965(2011) Method for The determination of tin in white metal bearing alloys (Nickel coil reduction method) — Methods for the sampling and analysis oftin and tin alloys
BS 2000-456:2000(2010) Methods of test for petroleum and its products — BS 2000 - 456 : Determination of potassium in gasoline — Atomic absorption spectrometry (AAS) method
BS EN ISO 20764:2003(2006) Methods of test for petroleum and its products Part 512 : Petroleum and related products — Preparation of a test portion of high - boiling liquids for the determination of water content — Nitrogen purge method

European Committee for Standardization (CEN), Determination method and principle of total nitrogen

PD CEN/TS 15750:2008 Fertilizers - Determination of different forms of nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
EN ISO 14891:2002 Milk and Milk Products - Determination of Nitrogen Content - Routine Method Using Combustion According to the Dumas Principle
EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
EN ISO 13395:1996 Water Quality - Determination of Nitrite Nitrogen and Nitrate Nitrogen and the Sum of Both by Flow Analysis (CFA and FIA) and Spectrometric Detection
EN 16168:2012 Sludge, treated biowaste and soil - Determination of total nitrogen using dry combustion 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 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)
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
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
EN 1936:2006 Natural stone test methods - Determination of real density and apparent density, and of total and open porosity
DD ENV 14226-2002 Advanced technical ceramics - Test methods for ceramic powders - Determination of calcium, magnesium, iron and aluminium in silicon nitride by using flame atomic absorption spectroscopy (FAAS) or inductively coupled plasma atomic emission spectroscopy (IC
EN ISO 10075-3:2004 Ergonomic principles related to mental workload - Part 3: Principles and requirements concerning methods for measuring and assessing mental workload

Association of German Mechanical Engineers, Determination method and principle of total nitrogen

VDI 2456-2004 Stationary source emissions - Reference method for determination of the sum of nitrogen monoxide and nitrogen dioxide - Ion chromatography method

Association Francaise de Normalisation, Determination method and principle of total nitrogen

NF EN ISO 14891:2003 Lait et produits laitiers - Détermination de la teneur en azote - Méthode pratique par combustion selon le principe de Dumas
NF EN 15750:2010 Engrais - Détermination de la teneur en azote total des engrais ne contenant l'azote que sous forme nitrique, ammoniacale et uréique, selon deux méthodes différentes
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 U42-503*NF EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
NF EN 16168:2012 Boues, biodéchets traités et sols - Détermination de la teneur totale en azote par combustion sèche
NF X31-036*NF EN 16168:2012 Sludge, treated biowaste and soil - Determination of total nitrogen using dry combustion method.
NF T90-012*NF EN ISO 13395:1996 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection.
NF X31-505:1992 Soil quality - Physical methods - Method for determining the bulk volume and the water content of lumps of earth
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.
NF T47-112:2009 Steel cord conveyor belts - Methods for the determination of total thickness and cover thickness.
NF EN ISO 14238:2014 Qualité du sol - Méthodes biologiques - Détermination de la minéralisation de l'azote et de la nitrification dans les sols, et de l'influence des produits chimiques sur ces processus
NF X35-300-3*NF EN ISO 10075-3:2005 Ergonomic principles related to mental workload - Part 3 : principles and requirements concerning methods for measuring and assessing mental workload.
NF EN 50414:2006 Méthodes d'analyse du plomb dans le PVC prélevé de l'enveloppe isolante et des gaines des câbles électriques et à fibres optiques - Méthode A : détermination de la teneur totale en plomb par spectrométrie atomique d'absorption dans la flamm...

International Organization for Standardization (ISO), Determination method and principle of total nitrogen

ISO/FDIS 937 Meat and meat products — Determination of nitrogen content — Reference method
ISO/DIS 937 Meat and meat products — Determination of nitrogen content — Reference method
ISO 14891:2002 | IDF 185:2002 Milk and milk products — Determination of nitrogen content — Routine method using combustion according to the Dumas principle
ISO 13395:1996 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
ISO 20921:2019 Textiles — Determination of stable nitrogen isotope ratio in cotton fibres
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 7590:2018 Steel cord conveyor belts - Methods for the determination of total thickness and cover thickness
ISO 7590:2009 Steel cord conveyor belts - Methods for the determination of total thickness and cover thickness
ISO 4491-4:2019 Metallic powders — Determination of oxygen content by reduction methods — Part 4: Total oxygen by reduction-extraction
ISO 2597-2:2008 Iron ores - Determination of total iron content - Part 2: Titrimetric methods after titanium(III)chloride reduction
ISO 2597-2:2015 Iron ores - Determination of total iron content - Part 2: Titrimetric methods after titanium(III) chloride reduction
ISO 14238:2012 Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes
ISO 6918:1984 Crude sodium borates for industrial use; Determination of total and alkali-soluble calcium and magnesium contents; Flame atomic absorption spectrometric method
ISO 10075-3:2004 Ergonomic principles related to mental workload - Part 3: Principles and requirements concerning methods for measuring and assessing mental workload
ISO/CD TR 20659-1:2023 Rheological test methods — Fundamentals and interlaboratory comparisons — Part 1: Determination of the yield point
ISO/DTR 20659-1:2023 Rheological test methods — Fundamentals and interlaboratory comparisons — Part 1: Determination of the yield point

Professional Standard - Urban Construction, Determination method and principle of total nitrogen

CJ 26.27-1991 Municipal sewage water quality inspection method standard Determination of total nitrogen Titration method after distillation

IN-BIS, Determination method and principle of total nitrogen

International Dairy Federation (IDF), Determination method and principle of total nitrogen

IDF 185-2002 Milk and milk products - Determination of nitrogen content - Routine method using combustion according to the Dumas principle

NL-NEN, Determination method and principle of total nitrogen

NEN 6646-1990 Water - Photometric determination of the content of ammonium nitrogen and of the sum of the contents of ammoniacal and organically bound nitrogen according to Kjeldahl by continuous flow analysis

Professional Standard - Commodity Inspection, Determination method and principle of total nitrogen

SN/T 2115-2008 Determination of the hotel nitrogen content and calculation of the crude protein content in food and feed for import and export.Combustion according to the Dumas principle
SN/T 1877.2-2007 Determination of polycyclic aromatic hydrocarbons in plastic and plastic article
SN/T 0863-2012 Determination of nickel in meat and meat products for export.Atomic absorption spectrophotometry
SN/T 0863-2000 Method for the determination of nickel in meat and meat products for import and export.Atomic absorption spectrophotometry
SN/T 1868-2007 Determination of total glucosinolates in rapeseed and its meal for import and export
SN/T 2297.7-2015 Analysis method for gypsum and gysum products.Part 7:Determination of arsenic and mercury content.Atomic fluorescence spectrum

ES-UNE, Determination method and principle of total nitrogen

UNE-EN 16168:2012 Sludge, treated biowaste and soil - Determination of total nitrogen using dry combustion method (Endorsed by AENOR in October of 2012.)
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 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 14238:2013 Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes (ISO 14238:2012) (Endorsed by AENOR in January of 2014.)

RO-ASRO, Determination method and principle of total nitrogen

STAS SR ISO/TR 9274:1995 Rolling bearings - Measuring and gauging principles and methods

PL-PKN, Determination method and principle of total nitrogen

PN Z04092 Arkusz 01-1974 Air purity protectlon Tests tor nitric acid and nitrogen oxides Determination of nitric acid and total amount of nitric acid and nitrogen oxides in the work station by the colorimetric method with phenoldisulphonic acid
PN C99470-04-1988 Physical and chemical testing methods of" photographic materials Determination of water absorption
PN A75101-08-1990 Fruit and vegetable products Preparation of samples and testing methods Determination of total ash content and its alkalinity

ZA-SANS, Determination method and principle of total nitrogen

SANS 13395:1996 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
SANS 5725-1:2009 Accuracy (trueness and precision) of measurement methods and results Part 1: General principles and definitions

AR-IRAM, Determination method and principle of total nitrogen

Professional Standard - Non-ferrous Metal, Determination method and principle of total nitrogen

YS/T 587.15-2023 Calcined coke for prebaked blocks— Part 15: Determination of total carbon,hydrogen and nitrogen contents
YS/T 423.1-2000 Methods for chemical analysis of nuclear-grade boron carbide powder.Determination of total boron content
YS/T 575.14-2007 Methods for chemical analysis of bauxite.Part 14:Determination the total content of rare earth oxide.Tribromo-arsenazo photometric method
YS/T 520.5-2007 Chemical analysis of gallium.Part 5: Determination of calcium content.The NO-CH flame atomic absorption spectral method
YS/T 1028.1-2015 Methods for chemical analysis of lithium iron phosphate.Part 1:Determination of total iron content.Titanium trichloride reduction potassium dichromate titration methods
YS/T 617.3-2007 Determination of chemical compositions and physical properties of aluminum powder, magnesium powder and Al-Mg alloy powder.Part 3: Determination of volatile matter (water) content.Drying-degravimetric method
YS/T 617.6-2007 Determination of chemical compositions and physical properties of aluminum powder, magnesium powder and AI-Mg alloy powder.Part 6: Determination of particle size distribution.Sieve method
YS/T 617.8-2007 Determination of chemical compositions and physical properties of aluminum powder, magnesium powder and Al-Mg alloy powder.Part 8: Determination of apparent density
YS/T 617.9-2007 Determination of chemical compositions and physical properties of aluminum powder, magnesium powder and AI-Mg alloy powder.Part 9: Determination of adhesion ratio of aluminum powder
YS/T 617.10-2007 Determination of chemical compositions and physical properties of aluminum powder, magnesium powder and AI-Mg alloy powder.Part 10: Determination of coating surface of aluminum powder

AT-ON, Determination method and principle of total nitrogen

ONORM ISO 5666 Teil.2:1984 Water quality; determination of total mercury by flameless atomic absorption spectrometry; method after pretreatment with ultraviolett radiation
ONORM N 4002-1994 Testing of meat and meat products - Determination of total tat content - Reference method (gravimetric)

YU-JUS, Determination method and principle of total nitrogen

JUS B.D8.302-1984 Refractories. Methods of fisical testing. Determination of true density refractorl products and raw materials
JUS H.Z1.137-1985 Testing of industrial vvaters. Determination of nitrite-nitrate and the combined nitrite-nitrate nitrogen, Spectrophotometric method
JUS C.A1.609-1979 Methods for chemical analysis of copper and copper alloys. Determination of kad by atomic absorption
JUS C.A1.610-1979 Methods for chemical anafysis of copper and copper alloys. Determination of aluminium by atomic absorption

Professional Standard - Coal, Determination method and principle of total nitrogen

MT/T 802.3-1999 Determination of total carbon of pyrite and concentrated pyrite in coal seam

Professional Standard - Speciality, Determination method and principle of total nitrogen

ZB D21003-1990 Method for Determination of Total Carbon in Coal Measures Pyrite and Pyrite Concentrate

煤炭工业部, Determination method and principle of total nitrogen

ZB 21003-1990 Method for determination of total carbon content in coal-bearing pyrite and sulfide concentrates

CEN - European Committee for Standardization, Determination method and principle of total nitrogen

EN ISO 8968-4:2001 Milk - Determination of Nitrogen Content - Part 4: Determination of Non-Protein Nitrogen Content

Jiangxi Provincial Standard of the People's Republic of China, Determination method and principle of total nitrogen

DB36/T 689-2012 Chemical analysis method of ionic rare earth raw ore Determination of total amount of rare earth in ionic phase EDTA titration method

Professional Standard - Agriculture, Determination method and principle of total nitrogen

GB 8857-1988 Method for determination of total ash and alkalinity of total ash and water-soluble ash in fruit and vegetable products
水产品质量安全检验手册 2.17.1.0-2005 Chapter 2 Basic Analysis Methods for Physical and Chemical Testing of Aquatic Products Section 17 Determination of Volatile Base Nitrogen in Aquatic Products (GBT 5009.44-2003) 1. Semi-trace Nitrogen Determination Method
水产品质量安全检验手册 6.15.1.2-2005 Chapter 6 Inspection of Elements in Aquatic Products Section 15 Determination of Total Mercury and Organic Mercury in Aquatic Products (GBT 5009.17-2003) 1. Determination of Total Mercury (2) Cold Atomic Absorption Spectrometry
水产品质量安全检验手册 6.15.1.1-2005 Chapter 6 Inspection of Elements in Aquatic Products Section 15 Determination of Total Mercury and Organic Mercury in Aquatic Products (GBT 5009.17-2003) 1. Determination of Total Mercury (1) Atomic Fluorescence Spectrometry
水产品质量安全检验手册 6.14.1.1-2005 Chapter 6 Inspection of elements in aquatic products Section 14 Determination of total arsenic and inorganic arsenic in aquatic products (GBT 5009.11-2003) 1. Determination of total arsenic (1) Hydride atomic fluorescence spectrometry
水产品质量安全检验手册 6.14.1.4-2005 Chapter 6 Inspection of elements in aquatic products Section 14 Determination of total arsenic and inorganic arsenic in aquatic products (GBT 5009.11-2003) 1. Determination of total arsenic (4) Borohydride reduction colorimetric method

TR-TSE, Determination method and principle of total nitrogen

TS 2550-1977 Essential Ratings And Characteristics Of Semiconductor Devices And General Principles Of Measuring Methods Part 0; General And Terminology
TS 2552-1977 Essential Ratings And Characteristics Of Seraiconductor Devices And General Principles Of Measuring Methods Part 2: General Principles Of Measuring Methods
TS 2553-1977 Essential Ratings And Characteristics Of Semiconductor Devices And General Principles Of Measuring Methods Part 3 : Referance Methods Of Measurement

International Electrotechnical Commission (IEC), Determination method and principle of total nitrogen

IEC 60147-0:1966 Essential ratings and characteristics of semiconductor devices and general principles of measuring methods. Part 0: General and terminology
IEC 60147-2:1963 Essential ratings and characteristics of semiconductor devices and general principles of measuring methods. Part 2 : General principles of measuring methods
IEC 60147-3:1970 Essential ratings and characteristics of semiconductor devices and general principles of measuring methods. Part 3 : Reference methods of measurement

Professional Standard - Rare Earth, Determination method and principle of total nitrogen

XB/T 619-2015 Chemical analysis methods of ion type rare earth ore.Determination of total rare earth ion phase

SE-SIS, Determination method and principle of total nitrogen

SIS SS 02 84 23-1991 Air Quality — Stationary source emissions — Determination of the total mass concentration ofmercury — Flameless atomic absorption methods

BELST, Determination method and principle of total nitrogen

STB 2447-2016 Knitted fabrics and garments. Methods for determination of appearance and mass part of raw materia
STB 1932-2009 Wine production and wine raw material. Method for free and total sulphurous acid determination

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, Determination method and principle of total nitrogen

GB/T 33208-2016 Non-destructive testing—Practice for the blades on-line monitoring based on tip-timing theory
GB/T 35818-2018 Standard method for analysis of forestry biomass－Determination of structural polysaccharides and lignin
GB/T 13747.22-2017 Methods for chemical analysis of zirconium and zirconium alloys—Part 22：Determination of oxygen and nitrogen contents—Inert gas fusion-infrared absorption and thermal conductivity method

TN-INNORPI, Determination method and principle of total nitrogen

American National Standards Institute （ANSI), Determination method and principle of total nitrogen

ANSI/ASTM D4661:1998 Polyurethane-Isocyanate Raw Materials, Determination of Total Chlorine, Method for Testing (08.03)

International Telecommunication Union (ITU), Determination method and principle of total nitrogen

ITU-T P.78-1996 Subjective Testing Method for Determination of Loudness Ratings in Accordance with Recommendation P.76 - Telephone Transmission Quality Measurements Related to Speech Loudness Study Group 12; 21 pp

Professional Standard - Hygiene , Determination method and principle of total nitrogen

WS/T 27-1996 Urine.Separate Determination of organic,inorganic and total mercury.Selective reduction cold atomic absorption spectrometric method
WS/T 131-1999 Workplace air.Determination of strontium and its compounds.Flame atomic absorption spectrometric method

国家市场监督管理总局、中国国家标准化管理委员会, Determination method and principle of total nitrogen

GB/T 14635-2020 Rare earth metals and their compounds—Determination of total rare earth content
GB/T 20975.24-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 24：Determination of total rare earth content
GB/T 13747.2-2019 Methods for chemical analysis of zirconium and zirconium alloys—Part 2：Determination of iron content—1,10-phenanthroline spectrophotometry and inductively coupled plasma atomic emission spectrometry
GB/T 40798-2021 Chemical analysis method of ion-adsorption rare earth ore—Determination of total rare earth contents—Inductively coupled plasma mass spectrometry
GB/T 13747.6-2019 Methods for chemical analysis of zirconium and zirconium alloys—Part 6：Determination of copper content—2,9-Dimethyl-1,10-phenanthroline spectrophotometry
GB/T 6609.12-2018 Chemical analysis methods and determination of physical performance of alumina—Part 12：Determination of zinc oxide content—Flame atomic absorption spectrometry method

PT-IPQ, Determination method and principle of total nitrogen

NP 1842-2-2002 Meat and meat products Determination of total phosphorus content Part 2: Gravimetric method (Reference method)

Canadian General Standards Board （CGSB), Determination method and principle of total nitrogen

CGSB 3.0 NO 19.5-2011-CAN/CGSB-2011 M閠hodes d抏ssai des produits p閠roliers et produits connexes Dosage du plomb dans l抏ssence pour automobiles (absorption atomique)
CAN/CGSB-4.2 NO.9.1-M90-1990 Textile Test Methods Breaking Strength of Fabrics - Strip Method - Constant-Time-to-Break Principle

Military Standard of the People's Republic of China-General Armament Department, Determination method and principle of total nitrogen

GJB 2589.20A-2021 Test methods for physical and chemical properties of military leather fur Part 20: Determination of nitrogen content and cortex

工业和信息化部, Determination method and principle of total nitrogen

YS/T 273.16-2020 Methods of chemical analysis and physical properties of cryolite Part 16: Determination of lithium content Flame atomic absorption spectrometry

IT-UNI, Determination method and principle of total nitrogen

UNI 4528-1960

Professional Standard - Geology, Determination method and principle of total nitrogen

DZ/T 0253.3-2014 Analytic methods for biologic samples in eco-geochemistry assessment.Part 3: Determination of total mecury content.Cold atomic fluorescent spectrophotometry