Determination and analysis method of total nitrogen in water

Determination and analysis method of total nitrogen in water, Total:346 items.

The international standard classification for "Determination and analysis method of total nitrogen in water" includes: Cadmium, cobalt and their alloys , Ferroalloys , Chemical analysis , Fertilizers , Metalliferous minerals , Coals , Boilers and heat exchangers , Non-ferrous metals , Cement. Gypsum. Lime. Mortar , Inorganic chemicals in general , Chemical reagents , Rubber , Other standards related to wastes , Chemical analysis of metals , Aluminium , Other non-ferrous metals and their alloys , Water quality , Aluminium and aluminium alloys .

The Chinese standard classification for "Determination and analysis method of total nitrogen in water" includes: Rare metals and their alloys analysis method , Steel and iron alloy analysis method , Basic standards and general methods for water treatment agent , Chemical fertilizer and chemical soil conditioner , Basic standards and general methods on chemical fertilizers , Iron ore , Coal analysis methods , Rare metal ore , Boiler and its auxiliary equipment , Cement , Inorganic chemicals in general , Chemical reagent in general , Heavy metal ore , Rubber products in general , Solvent oil , Light metals and their alloys analysis method , Water supply and draining instrument and equipment , Analysis methods for toxic substances in water , Metal physical property test method , Analysis and test methods for radioactive substances and radiation intensity .

Professional Standard - Commodity Inspection

SN/T 3005-2011 Test Method for Instrumental Determination of Carbon
SN/T 3097-2012 Determination of total nitrogen in fertilizers-Combustion

Group Standards of the People's Republic of China

T/HNNMIA 63-2023 Chemical analysis methods of amidoxime resins-Determination of nitrogen content-Elemental analysis
T/GRM 046-2022 Determination of Mercury in Gas Field Water
T/GXAS 477-2023 Determination of total nitrogen content in sugarcane juice —sulphuric acid titrimetric method
T/NAIA 0247-2023 Determination of water quality nitrate nitrogen by continuous flow analysis method
T/GRM 049-2022 Determination of Mercury in Crude Oil
T/NAIA 044-2021 Urine Total Nitrogen Determination in Livestock Kjeldahl Method
T/NAIA 0248-2023 Determination of nitrite nitrogen in water quality by continuous flow analysis method
T/CHES 15-2017 Determination of Total Nitrogen in Water Quality Gas Phase Molecular Absorption Spectrometry
T/QAS 071-2021 Determination of total nitrogen in brine Kjeldahl method
T/CHES 27-2019 Water Quality Determination of Ammonia Nitrogen Automatic Analysis Nessler's Reagent Spectrophotometry

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

GB/T 43875-2024 Determination method of total chromium in cement raw materials
GB/T 223.36-1994 Methods for chemical analysis of iron, steel and alloy The neutral titration method for the determinaion of nitrogen content after distillation separation
GB/T 15076.13-1994 Methods for chemical analysis of tantalum and niobium-Determination of nitrogen content in tantalum
GB/T 11224-1989 Analytical method of thonium in water
GB/T 10511-2008 Determination of total nitrogen content for nitrophosphate - Titrimetric method after distillation
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 609-2006 Chemical Reagent - General Method for the Determination of Total Nitrogen
GB/T 8572-2001 Determination of total nitrogen content for compound fertilizers--Titrimetric method after distillation
GB/T 2441.1-2008 Determination of urea - Part 1: Total nitrogen content
GB/T 2441.1-2001 Determination of urea-Determination of total nitrogen content
GB/T 22923-2008 Determination of nitrogen,phosphorus and potassium for fertilizers by auto analyzer
GB/T 16480.5-1996 Method for chemical analysis of yttrium and yttium oxide--Determination of nitrogen content
GB/T 11225-1989 Analytical method of plutonium in water
GB/T 10511-1989 The determination of total nitrogen content for nitrophosphate titrimetric method after distillation
GB/T 19227-2008 Determination of nitrogen in coal
GB/T 6913.3-1986 Methods for analysis of water for boiler and for cooling--The determination of phosphates--Total phosphate
GB/T 3257.15-1999 Methods for chemical analysis of bauxite--Determination the total content of rare earth oxide--Tribromo-arsenazo photometric method
GB/T 609-1988 Chemical reagent-General method for the determination of total nitrogen
GB/T 15079.12-1994 Molybdenum concentrates-Determination of oil and moisture content
GB/T 6730.24-1986 Methods for chemical analysis of iron ores; The arsenazo 3 photometric method for the determination of rare earth elements content
GB/T 609-2018 Chemical reagent—General method for the determination of total nitrogen
GB/T 8572-2010 Determination of total nitrogen content for compound fertilizers titrimetric method after distillation
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 12375-1990 Analytical method of tritium in water
GB/T 5687.4-1985 Methods for chemical analysis of ferro-chromium; The neutralization titration method for the determination of nitrogen content
GB/T 14422-2008 Analysis of water used in boiler and cooling system - Determination of benzotriazole
GB/T 14422-1993 Analysis of water used in boiler and cooling system－Determination of benzotriazole－Ultraviolet spectrophotometry

国家市场监督管理总局、中国国家标准化管理委员会

GB/T 40723-2021 Rubber—Determination the contents of total sulfur and total nitrogen — Automatic analyser method

未注明发布机构

ASTM RR-D05-1046 2013 D5373-Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke
ASTM RR-D05-1015 1993 D3302/D3302M-Test Method for Total Moisture in Coal
ASTM RR-D19-1194 2016 D8083-Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection
ASTM RR-D05-1048 2016 D5373-Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke
AS 1050.12:1983(R2016) Steel analysis methods Determination of nitrogen in steel (steam distillation titration method)

National Metrological Verification Regulations of the People's Republic of China

JJG 1094-2013 Water Quality On-line Analyzers of Total Phosphorus and Total Nitrogen

Xinjiang Provincial Standard of the People's Republic of China

DB65/T 602.4-2001 The determinanation of nitrate nitrogen in soil
DB65/T 602.2-2001 The determinanation of hydrolyzable nitrogen in soil
DB65/T 602.3-2001 The determinanation of ammonium nitrogen in soil

Jilin Provincial Standard of the People's Republic of China

DB22/T 2270-2018 Determination of Ammonium Nitrogen and Nitrate Nitrogen in Farmland Soil by Flow Injection Analysis
DB22/T 2270-2015 Determination of Ammonium Nitrogen and Nitrate Nitrogen in Farmland Soil by Flow Injection Analysis
DB22/T 1932-2013 Determination method of total nitrogen content in peat (Kjeldahl method)

Fujian Provincial Standard of the People's Republic of China

DB35/T 1144-2011 Determination of inorganic nitrogen and active phosphate in seawater by flow chemical analysis

Professional Standard - Urban Construction

CJ 26.27-1991 Municipal sewage water quality inspection method standard Determination of total nitrogen Titration method after distillation
CJ/T 77-1999 Municipal sewage.Determination of total nitrogen.Distillation and titration method

Hunan Provincial Standard of the People's Republic of China

DB43/T 2139-2021 Determination of Nitrogen and Phosphorus in Plants by Continuous Flow Analysis

Professional Standard - Agriculture

GB 10511-1989 The determination of total nitrogen content for nitrophosphate titrimetric method after distillation
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
HJ 199-2023 Water quality―Determination of total nitrogen ―Gas-phase molecular absorption spectrometry
GB 609-1988 General method for the determination of total nitrogen content of chemical reagents
SL/T 788.1-2019 Part 1: Determination of total nitrogen in water quality
GB/T 42955-2023 Determination of total nitrogen content for fertilizers—Dumas combustion method

Professional Standard - Coal

MT/T 743.1-2011 Determination of Total Phosphorus in Mine Water
MT/T 742.1-2011 Determination of Total Chromium in Mine Water
MT/T 742.1-1997 Determination of total chrominum in mine water
MT/T 743.1-1997 Determination of total phosphorus in mine water
MT/T 744-1997 Determination of the gross α and grossβ radioactivity of the groundwater in coal mines

Professional Standard - Nuclear Industry

EJ 194.2-1982 Environmental samples.Method for analyzing total trace of mercury in water

Professional Standard - Aviation

HB 5218.14-1995 Aluminum Alloy Chemical Analysis Method Tribromoarsine Spectrophotometric Determination of Total Rare Earth in Cerium Group
HB 5297.25-2001 Methods for Chemical Analysis of Titanium Alloys - Determination of Nitrogen Content by Water Vapor Distillation Method
HB/Z 5218.14-2004 Methods for chemical analysis of aluminium alloys-Part 14:Determination of the cerium subgroup of rare earth elements content by tribromoarsenazo spectrophtometric 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

GB/T 34500.5-2017 Chemical analysis methods for rare earth residue and waste water―Part 5:Determination of ammonia nitrogen content

Hebei Provincial Standard of the People's Republic of China

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

Professional Standard - Non-ferrous Metal

YS/T 575.18-2006 Methods for chemical analysis of bauxite -- Determination of total carbon content -- Non-aqueous titrimetric method after combustion
YS/T 555.11-2009 Methods for chemical analysis of molybdenum concentrate—Determination of oil and moisture content—Gravimetry
YS/T 555.12-2006 Molybdenum concentrates. Determination of oil and moisture content
YS/T 575.14-2006 Methods for chemical analysis of bauxite -- Determination the total content of rare earth oxide -- Tribromo-arsenazo photometric method

Professional Standard - Electricity

DL/T 1358-2014 Analytical Methods of Steam and Water in Power Plants—Determination of Total Organic Carbon
DL/T 522.2-1993 Determination of acetoxime (DMKO) in water

国家质量监督检验检疫总局

SN/T 4764-2017 Determination of total carbon,hydrogen,nitrogen and sulfur content in coal—Elemental analyzer method

Professional Standard - Environmental Protection

HJ 537-2009 Water quality-Determination of ammonia nitrogen-Distillation-neutralization titration
HJ 1126-2020 Analysis method for tritium in water
HJ/T 199-2005 Water quality -- Determination of total-nitrogen Gas-phase molecular absorption spectrometry
HJ/T 102-2003 The technical requirement for water quality automatic ananlyzer of total nitrogen

Professional Standard - Geology

DZ/T 0064.57-2021 Methods for analysis of groundwater quality- Part 57: Determination of ammonia nitrogen- Nessler's reagent spectrophotometry
DZ/T 0064.23-2021 Methods for analysis of groundwater quality- Part 23: Determination of iron content - Phenanthrolion spectrophotometry
DZ/T 0064.76-2021 Methods for analysis of groundwater qualit- Part 76: Determination of total alpha and total beta radioactivity- Radiochemical method

Professional Standard - Railway

TB/T 2059.5-1989 Analytical method for cooling water additives of railway diesel locomotive Determination of benzotriazole

Military Standard of the People's Republic of China-General Armament Department

GJB 770.303-1989 Test methods for gunpowder analysis: Determination of nitrogen content of nitrocellulose. Five-tube nitrogen meter method

工业和信息化部

YS/T 1161.3-2016 Chemical analysis methods of pseudoboehmite—Part 3:Determination of pore volume and specific surface area—Bynitrogen adsorption
YS/T 1467.10-2021 Hafnium Chemical Analysis Methods Part 10: Determination of Oxygen and Nitrogen Amounts
YS/T 1179.3-2017 Chemical analysis methods of aluminum slag-Part 3:Determination of carbon，nitrogen-Element analysis method

中华人民共和国环境保护部

GB 11225-1989 Analytical method of plutonium in water
GB 12375-1990 Analytical method of tritium in water

American Society for Testing and Materials (ASTM)

ASTM D3590-02 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D3590-11 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D3590-17 Standard Test Methods for Total Kjeldahl Nitrogen in Water
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 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 D1013-93(1998) Standard Test Method for Determining Total Nitrogen in Resins and Plastics
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 D3590-02(2006) Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM E258-67(2002) Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM D3590-89(1994)e1 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D3228-22 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D1426-98 Standard Test Methods for Ammonia Nitrogen In Water
ASTM D5176-91(1995) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D5176-91(2003) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D3179-02 Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
ASTM D3179-89(2002) Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
ASTM D3179-89(1997)e1 Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
ASTM D5373-21 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 D5176-08 Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D5373-14 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 D3179-02e1 Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
ASTM D3179-89(1997) Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
ASTM D1426-03 Standard Test Methods for Ammonia Nitrogen In Water
ASTM D5373-14e1 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 D5373-13 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 D5176-08(2015) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM E778-87(1996) Standard Test Methods for Nitrogen in the Analysis Sample of Refuse-Derived Fuel
ASTM E778-87(2004) Standard Test Methods for Nitrogen in the Analysis Sample of Refuse-Derived Fuel
ASTM E258-67(1996)e1 Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM D7675-22 Standard Test Method for Determination of Total Hydrocarbons in Hydrogen by FID-Based Total Hydrocarbon (THC) Analyzer
ASTM D8083-16(2023) Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection
ASTM D5475-93(1997) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
ASTM UOP481-10 Water in Liquid Hydrocarbons by Coulometry
ASTM E778-15(2021) Standard Test Methods for Nitrogen in Refuse-Derived Fuel Analysis Samples
ASTM D6016-06(2012) Standard Test Method for Determination of Nitrogen, Water Extractable in Leather
ASTM D6016-17 Standard Test Method for Determination of Nitrogen, Water Extractable in Leather
ASTM D3327-79e1 Method for Analysis of Selected Elements in Waterborne Oils

British Standards Institution (BSI)

BS 5551-4.1.3:1986 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of total nitrogen content (titrimetric method after distillation)
BS 7755-3.7:1995 Soil quality. Chemical methods. Determination of total nitrogen. Modified Kjeldahl method
BS 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
BS EN ISO 11732:2005 Water quality. Determination of ammonium nitrogen. Method by flow analysis (CFA and FIA) and spectrometric detection
BS EN 15478:2009 Fertilizers - Determination of total nitrogen in urea
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 EN 15750:2010 Fertilizers. Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
BS 4267-2:1988(1999) Ammonium nitrate — Part 2 : Method for determination of total nitrogen content
BS 684-2.8:1977 Methods of analysis of fats and fatty oils - Other methods - Determination of total neutral oil
DD ISO/TS 12902:2002 Solid mineral fuels. Determination of total carbon, hydrogen and nitrogen. Instrumental methods
BS 5551-4.1.2:1982 Fertilizers. Chemical analysis. Determination of nitrogen. Determination of ammoniacal nitrogen, titrimetric method after distillation
BS 5551 SubSec.4.1.5:1993 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of urea nitrogen content (gravimetric method using xanthydrol)
BS 6986-4:1990 Analysis of instant tea. Method for determination of total ash
BS 6870-2.2:1987 Analysis of aluminium ores. Chemical methods. Method for determination of hygroscopic moisture in analytical samples: gravimetric method
BS 4267-2:1988 Ammonium nitrate - Method for determination of total nitrogen content
BS ISO 5068-1:2007 Brown coals and lignites - Determination of moisture content - Indirect gravimetric method for total moisture
21/30426878 DC BS ISO 23697-2. Water quality. Determination of total nitrogen (TNb) in water using small-scale sealed tubes. Part 2. Chromotropic acid based method
BS 1016-102:2000 Methods for analysis and testing of coal and coke - Determination of total moisture of coke

AENOR

UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).
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 15478:2009 Fertilizers - Determination of total nitrogen in urea
UNE 77035:1983 WATER ANALYSIS METHODS IN INDUSTRIAL WASTES. DETERMINATION OF ACIDITY
UNE 77325:2003 Soil quality. Determination of total nitrogen content by dry combustion ("elemental analysis").
UNE 77318:2001 Soil quality. Determination of total nitrogen. Modified Kjeldahl method.
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).

SCC

AWWA ACE58255 Analytical Methods for Organic-N in Water Sources
NS 4745:1991 Water analysis - Determination of the sum of nitrite nitrogen and nitrate nitrogen
NS 4743:1993 Water analysis — Determination of total nitrogen after oxidation by peroxodisulphate
NS 4746:1975 Water analysis - Determination of ammonia-nitrogen
AS 1871.11:1976 List of methods for examination of waters Nitrogen (total Kjeldahl incl. ammoniacal)
AS K1.12:1959 Methods for the analysis of iron and steel, Part 12: Method for the determination of nitrogen in steel
SN-CEN/TS 15750:2008 Fertilizers — Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
NS-EN 15750:2009 Fertilizers — Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
BS DD CEN/TS 15750:2008 Fertilizers. Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
DANSK DS/EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
AENOR UNE-EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
DANSK DS/ISO 29441:2010 Water quality - Determination of total nitrogen after UV digestion - Method using flow analysis (CFA and FIA) and spectrometric detection
BS 1121-39:1959 Methods for the analysis of iron and steel. Nitrogen in iron and steel
DIN EN 15750 E:2009 Draft Document - Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version prEN 15750:2009
DANSK DS/CEN/TR 17365:2019 Method for the determination of C3A in the clinker from cement analysis
SN-CEN/TR 17365:2019 Method for the determination of C3A in the clinker from cement analysis
BS PD CEN/TR 17365:2019 Method for the determination of C3A in the clinker from cement analysis
NS 4728:1983 Water analysis - Determination of the sum of calcium and magnesium - Titrimetric method
DANSK DS/EN 15478:2009 Fertilizers - Determination of total nitrogen in urea
NS-EN 15478:2009 Fertilizers — Determination of total nitrogen in urea
SN-CEN/TS 15478:2006 Fertilizers — Determination of total nitrogen in urea
BS 1121-39:1967 Methods for the analysis of iron and steel. Nitrogen in iron and steel. Volumetric
DANSK DS/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
UNE-CEN/TS 15478:2007 EX Fertilizers - Determination of total nitrogen in urea
BS 5551-4.1.5:1993 Fertilizers. Chemical analysis. Determination of nitrogen.-Method for determination of urea nitrogen content (gravimetric method using xanthydrol)
NS 4865:1983 Air quality — Determination of the sum of nitrite- and nitrate-nitrogen in precipitation
BS 6200-3.22.2:1985 Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of nitrogen-Steel: spectrophotometric method
BS 7020-2:1988 Analysis of iron ores-Method for the determination of hygroscopic moisture in analytical samples
AENOR UNE 77037:1983 METHOD OF ANALYSIS OF WATER IN INDUSTRIAL DISCHARGE. DETERMINATION OF OIL AND GREASE, TOTAL RECOVERABLE. SOXHLET EXTRACTION METHOD
NS 4731:1991 Water analysis — Determination of available chlorine in water — Titrimetric method
BS 4288-5:1970 Methods for the analysis of fruit and vegetable products. Determination of total solids
BS 4325-2:1968 Methods for analysis of oilseed residues. Determination of total ash
DANSK DS/EN ISO 11732:2005 Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection
AENOR UNE 77057:1983 WATER ANALYSIS METHODS IN INDUSTRIAL DISCHARGE. DETERMINATION OF MERCURY. COLD STEAM METHOD
NS 4729:1991 Water analysis — Determination of available chlorine in water — Photometric method

SE-SIS

SIS SS 02 81 33-1991 Determination of the sum of the nitrite and nitrate nitrogen content of water
SIS SS 02 81 86-1985 Determination of total arsenic in water - Silver diethyldithiocarbamate spectrometric method
SIS SS 02 81 76-1986 Determination of total cyanide in water - Photometric or titrimetric method
SIS SS 02 81 99-1990 Guidelines for the determination of total organic carbon (TOC) in water
SIS 02 81 27-1974 Determ i nation of total phosphorous content of water

BE-NBN

NBN T 91-255-1976 Water analysis methods - Determination of the ammoniacal and organic nitrogen - (Kjeldahl nitrogen)
NBN T 91-253-1976 Water analysis methods - Determination of the albuminoid nitrogen
NBN T 91-257-1977 Water analysis methods - Determination of the nitrite nitrogen - Photoraetric method
NBN T 91-252-1976 Water analysis methods - Determination of the ammoniacal nitro-gen after preliminary distillation
NBN T 91-256-1977 Water analysis methods - Determination of the nitrate nitrogen -Photometric method with chromotropic acid
NBN T 91-254-1976 Water analysis methods - Determination of the ammoniacal nitrogen -Direct photometric methodwith sodium phenate
NBN T 91-251-1976 Water analysis methods — Determination of the ammoniacal nitrogen — Direct photometric method with Nessler reagent
NBN V 21-013-1978 Determination of the total nitrogen contaimng substances content of milk - Amido black method

NO-SN

NS 4745-1991 Water analysis - Determination of the sum of nitrite nitrogen and nitrate nitrogen
NS 4743-1993 Water analysis. Determination of total nitrogen after oxidation with peroxodisulphate
NS 4796-1987 Water analysis - Determination of total cyanide
NS 4799-1993 Water analysis. Determination of acid soluble aluminium in water. Photometric method

Japanese Industrial Standards Committee (JISC)

JIS K 0170-3:2019 Testing methods for water quality by flow analysis -- Part 3: Total nitrogen
JIS K 0170-3:2011 Testing methods for water quality by flow analysis -- Part 3: Total nitrogen
JIS H 1685:2000 Method for determination of nitrogen in tantalum
JIS H 1685:1976 Methods for determination of nitrogen in tantalum
JIS R 1640:2002 Methods for the quantitative phase analysis of silicon nitride
JIS G 1228:1997 Iron and steel -- Methods for determination of nitrogen content
JIS K 0170-1:2011 Testing methods for water quality by flow analysis -- Part 1: Ammonium nitrogen

PL-PKN

PN C04576 ArkusZ12-1973 Water and waste water Tests for nitrogenDetermination of total nitrogen of Kjeldahl

ZA-SANS

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 5922:1978 Total moisture content of coal (nitrogen-oven method)
SANS 579:2005 Coke - Determination of total moisture
SANS 589:2005 Hard coal - Determination of total moisture

International Organization for Standardization (ISO)

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 13878:1998 Soil quality - Determination of total nitrogen content by dry combustion ("elemental analysis")
ISO 6332:1982 Water analysis — Determination of iron — 1,10-phenanthroline photometric method
ISO 11732:2005 Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection
ISO 11732:1997 Water quality - Determination of ammonium nitrogen by flow analysis (CFA and FIA) and spectrometric detection
ISO 11261:1995 Soil quality - Determination of total nitrogen - Modified Kjeldahl method

Korean Agency for Technology and Standards (KATS)

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 I ISO 13395-2008(2018) Water quality－Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
KS D 2555-1995 Methods for determination of nitrogen in tantalum
KS D 2555-2015 Methods for determination of nitrogen in tantalum
KS I ISO 13878:2009 Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
KS I 2203-2011 Methods for determination of oxides of nitrogen in flue gases
KS D 1811-1993 Methods for determination of nitrogen in iron and steel
KS D 1811-2023 Methods for determination of nitrogen in iron and steel
KS I ISO 11732:2008 Water quality－Determination of ammonium nitrogen－Method by flow analysis(CFA and FIA) and spectrometric detection
KS I ISO 11261-2008(2021) Soil quality－Determination of total nitrogen－Modified Kjeldahl method
KS E ISO 11722-2022 Solid mineral fuels — Hard coal — Determination of moisture in the general analysis test sample by drying in nitrogen
KS I ISO 11732-2023 Water quality — Determination of ammonium nitrogen — Method by flow analysis (CFA and FIA) and spectrometric detection
KS D 1811-2003 Methods for determination of nitrogen in iron and steel
KS I ISO 11732-2008(2018) Water quality－Determination of ammonium nitrogen－Method by flow analysis(CFA and FIA) and spectrometric detection
KS I ISO 11261-2008(2018) Soil quality－Determination of total nitrogen－Modified Kjeldahl method
KS D 1910-6-2023 Method for chemical analysis of ferrochromium — Part 6: Determination of nitrogen content
KS I ISO 11261:2008 Soil quality-Determination of total nitrogen-Modified Kjeldahl method
KS D 2530-2007 Methods for determination of nitrogen in titanium and titanium alloys
KS I ISO 13395-2018 Water quality－Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
KS D 2555-2005 Methods for determination of nitrogen in tantalum
KS D 2573-2005 Methods for determination of nitrogen in zirconium and zirconium alloys

European Committee for Standardization (CEN)

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
CEN/TR 17365:2019 Method for the determination of C3A in the clinker from cement analysis
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 15478:2009 Fertilizers - Determination of total nitrogen in urea
EN ISO 11732:2005 Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection (ISO 11732:2005)

Association of Official Analytical Chemists (AOAC)

AOAC 991.20 AOAC Official Method 991.20 Nitrogen (Total) in Milk Kjeldahl Methods
AOAC Official Method 2001.14 Determination of total nitrogen in cheese

Danish Standards Foundation

DS 224:1975 Water analysis. Determination of ammonia-nitrogen
DS/ISO 29441:2010 Water quality - Determination of total nitrogen after UV digestion - Method using flow analysis (CFA and FIA) and spectrometric detection
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 15478:2009 Fertilizers - Determination of total nitrogen in urea
DS/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
DS 250:1973 Water analysis. Determination of the sum of calcium and magnesium
DS/EN ISO 11732:2005 Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection

Standard Association of Australia （SAA）

AS 1050.12:1983/Amdt 1:1984 Steel analysis methods Determination of nitrogen in steel (steam distillation titration method)
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 2434.1:1999 Methods for the analysis and testing of lower rank coal and its chars - Determination of the total moisture content of lower rank coal
AS 1050.12:1983 Methods for the analysis of iron and steel - Determination of nitrogen in steel (steam distillation titrimetric method)

HU-MSZT

MNOSZ 448-27.lap-1955 Determination of total nitrogen water

VN-TCVN

TCVN 6645-2000 Soil quality.Determination of total nitrogen content by dry combustion ("elemental analysis")
TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
TCVN 305-2010 Steel and iron.Determination of nitrongen content.Methods of chemical analysis.
TCVN 6498-1999 Soil quality.Determination of total nitrogen.Modifierd Kejldahl method

NL-NEN

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
NEN 6483-1982 Water - Potentiometric determination of the total fluoride content

GOSTR

GOST R 58596-2019 Soils. Methods for determination of total nitrogen

GSO

OS GSO ISO 29441:2013 Water quality -- Determination of total nitrogen after UV digestion -- Method using flow analysis (CFA and FIA) and spectrometric detection
GSO ISO 29441:2013 Water quality -- Determination of total nitrogen after UV digestion -- Method using flow analysis (CFA and FIA) and spectrometric detection
GSO CEN/TR 17365:2021 Method for the determination of C3A in the clinker from cement analysis
BH GSO CEN/TR 17365:2022 Method for the determination of C3A in the clinker from cement analysis
BH GSO ISO 13878:2016 Soil quality -- Determination of total nitrogen content by dry combustion ("elemental analysis")
OS GSO ISO 11732:2015 Water quality -- Determination of ammonium nitrogen -- Method by flow analysis (CFA and FIA) and spectrometric detection

YU-JUS

JUS C.A1.409-1982 Methods for chemical analysi$ of ferroalloys. Titrimetric determination ofnitrogen in ferro-chromium
JUS B.H8.338-1986 Methnds of analysis of coal and coke. Coke - Determination of total moisture
JUS B.G8.132-1977 Metho?s of chemical analysis of iron ores. Determination ofhygroskopic moisture in analytical samples
JUS H.G8.298-1987 Reagents. Oxaiic acid dihydrate. Determination of total nitrogen content. Colorimetric metbod

Indonesia Standards

SNI 4146-2013 Method for determination of total nitrogen content in sediment by Kjeldahl titration method
SNI 13-4721-1998 Methods for determination of total nitrogen content in soils
SNI 06-6323-2000 Determination of total nitrogen content in peat
SNI 06-6989.26-2005 Water and wastewater - Part 26: Test methods of total solid content by gravimetric analysis

German Institute for Standardization

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 EN 15478:2009-04 Fertilizers - Determination of total nitrogen in urea; German version EN 15478:2009
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 EN 15478:2009 Fertilizers - Determination of total nitrogen in urea; English version of DIN EN 15478:2009-04
DIN EN ISO 11732:2005 Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection (ISO 11732:2005); German version EN ISO 11732:2005
DIN ISO 13878:1998 Soil quality - Determination of total nitrogen content by dry combustion ("elemental analysis") (ISO 13878:1998)

TR-TSE

TS 3651-1981 METHODS FOR THE ANALYSIS OF WATER — DETERMINATION OF IRON CONTENT — 1,10 Phenanthroline Spectrophotometry Method
TS 2428-1976 METHODS FOR THE CHEMICAL ANALYSIS OF IRON AND STEELS DETERMINATION OF NITROGEN CONTENT
TS 601-1972 CHEMICAL ANALYSIS OF STEELS DETERMINATION OP TOTAL CABBON (GRAVIMETKIC METHOD APTER COMBUSTION ?N A STREAM OP OXYGEN)
TS 2879-1977 METHODS FOR THE ANALYSIS OF WATER DETERMINATION OF CALCIUM AND MAGNESIUM CONTENTS
TS 3263-1978 METHODS FOR ANALYSIS OF WATER DETERMINATION OF pH VALUE
TS 974-1971 DETERMINATION OF NITROGEN, TOTAL SULPHUR CHLORINE AND PHOSPHORUS ?N COKE

CZ-CSN

CSN 83 0540 Cast.13-1984 Chemical and physical analysis of waste water Determination of organic and total nitrogen
CSN 58 0703-7-1999 Testing methods of dehydrated products and seasonings - Part 7: Determinaton of total nitrogen
CSN 65 4836-1983 Minerál fertilizers Methode for determination of total nitrogen content
CSN 46 3205-1987 Fresh fruits. Table grapes. Metod of analytical determination of total sugar content
CSN ON 65 4510-1962 Analysis of industrial degassing. Nitrogen determination

RU-GOST R

GOST 10671.4-2016 Reagents. Methods for determination of total nitrogen impurity
GOST EN 15478-2013 Fertilizers. Determination of total nitrogen in urea
GOST 33045-2014 Water. Methods for determination of nitrogen-containing matters
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 33503-2015 Solid mineral fuel. Methods for determination of moisture in the analysis sample

Lithuanian Standards Office

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 15478-2009 Fertilizers - Determination of total nitrogen in urea
LST EN ISO 13395:2000 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)

IT-UNI

UNI 3712-1956 Chemical analysis methods of metallic materials. Determination of total calcium in silicon. Gravimetric method*
UNI 2963-1949 Procedures for chemical analysis of metallic materials. Determination of total silicon content of ferrosilicon.
UNI 3711-1956 Chemical analysis methods of metallic materials. Determination of total calcium in silicon. Volume measurement method*
UNI 3665-1955 Procedures for chemical analysis of minerals. Determination of total alkali in iron ore. Gravimetric method, for standard analyses.
UNI 7336-1974 Chemical analysis of ferrous materials. Determination of nitrogen in steel. Spectrophotometric method.

CEN - European Committee for Standardization

PD CEN/TR 17365:2019 Method for the determination of C3A in the clinker from cement analysis
PD CEN/TS 15478:2006 Fertilizers - Determination of total nitrogen in urea
EN ISO 11732:1997 Water Quality - Determination of Ammonium Nitrogen by Flow Analysis (CFA and FIA) and Spectrometric Detection

Association Francaise de Normalisation

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 U42-147*NF EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrate
NF V04-211:1971 MILK. DETERMINATION OF TOTAL NITROGEN CONTENT. (KJELDAHL METHOD).
NF X31-418*NF ISO 13878:1998 Soil quality. Determination of total nitrogen content by dry combustion ("elemental analysis").
NF EN 15478:2009 Fertilizers - Determination of total nitrogen in urea
NF T90-080*NF EN ISO 11732:2005 Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection.
NF T20-295:1968 CHEMICAL ANALYSIS OF SULPHURIC ACID AND OLEUM. DETERMINATION OF TOTAL NITROGEN.
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 EN ISO 13395:1996 Water quality - Determination of nitrous nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
NF U42-416*NF EN 15478:2009 Fertilizers - Determination of total nitrogen in urea.
NF EN ISO 11732:2005 Water quality - Determination of ammoniacal nitrogen - Flow analysis method (CFA and FIA) and spectrometric detection
NF A06-555:2010 Steel - Determination of nitrogen content - Spectrophotometric method.

AT-ON

ONORM L 1091-1999 Chemical analysis of soils - Determination of inorganic nitrogen Nmin-method
ONORM L 1095-2002 Chemical analyses of soils - Determination of total nitrogen by dry combustion
ONORM M 6281-1991 Water analysis — Determination of total chlorine by iodometric ütration

VDI - Verein Deutscher Ingenieure

VDI 2456 Blatt 10-1989 Gaseous emission measurement; analytical determination of the sum of nitrogen monoxide and nitrogen dioxide; dimethylphenol method
VDI 2456 Blatt 10-1990 Gaseous emission measurement; analytical determination of the sum of nitrogen monoxide and nitrogen dioxide; dimethylphenol method

KR-KS

KS D 1811-2003(2023) Methods for determination of nitrogen in iron and steel
KS I ISO 13878-2009(2023) Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
KS I 3202-2023 Testing methods for total organic carbon in highly purified water
KS E ISO 11722-2017 Solid mineral fuels－Hard coal－Determination of moisture in the general analysis test sample by drying in nitrogen

RO-ASRO

STAS SR 13300-5-1994 `Starches. Methods of analysis. Total ash determination
STAS SR 13348-1-1996 Tea. Analysis methods. Determination of proteic nitrogen by the Kjeldahl method. Spectrophotometric method
SR 2567-1-1997 Soft drinks - Methods of analysis - Determination of total acidity (Uzual method )

American National Standards Institute （ANSI)

ANSI/ASTM D4019:1994 Test Method for Moisture in Plastics by Coulometry (08.03)

IN-BIS

IS 5194-1969 Determination method of nitrogen-Kjeldahl method

Others: Determination method of total nitrogen in water,Determination method of total nitrogen in wastewater,Determination and analysis method of total nitrogen in water,Determination method and calculation method of total nitrogen in water,A method for rapid determination of total nitrogen in water,Ultraviolet Spectrophotometric Determination Method of Total Nitrogen in Water,2. Analytical method for determination of total phosphorus in water,Analytical method for determination of total phosphorus in water