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Determination method and calculation method of total nitrogen in water

Determination method and calculation method of total nitrogen in water, Total:284 items.

In the international standard classification, Determination method and calculation method of total nitrogen in water involves: Water quality, Milk and milk products, Lubricants, industrial oils and related products, Fertilizers, Spices and condiments. Food additives, Non-ferrous metals, Organic chemicals, Animal feeding stuffs, Leather technology, Coals, Inorganic chemicals, Microbiology, Air quality, Fuels, Analytical chemistry, Edible oils and fats. Oilseeds, Metalliferous minerals, Sugar. Sugar products. Starch, Products of the chemical industry, Meat, meat products and other animal produce, Cutting tools, Machine tools, Tea. Coffee. Cocoa, Vocabularies, Radiation protection, Electricity. Magnetism. Electrical and magnetic measurements, Electromagnetic compatibility (EMC), Radiation measurements, Nuclear energy engineering, Burners. Boilers, Fruits. Vegetables, Petroleum products in general, Food products in general, Soil quality. Pedology, Construction materials, Crude petroleum, Glass, Ferrous metals, Mining equipment, Testing of metals, Installations in buildings, Protection against fire, General methods of tests and analysis for food products, Applications of information technology, Optics and optical measurements.

American Society for Testing and Materials (ASTM), Determination method and calculation method of total nitrogen in water

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 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 D3590-11 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D3590-02 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D3590-17 Standard Test Methods for Total Kjeldahl Nitrogen in Water
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 D3228-22 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 E258-67(2002) Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM D5176-08(2015) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D6016-06(2012) Standard Test Method for Determination of Nitrogen, Water Extractable in Leather
ASTM E258-67(1996)e1 Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM D6016-06 Standard Test Method for Determination of Nitrogen, Water Extractable in Leather
ASTM D3228-20 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
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 D5475-93(1997) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
ASTM D5176-20 Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
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 D3228-08(2014) Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D6016-17 Standard Test Method for Determination of Nitrogen, Water Extractable in Leather
ASTM E258-07 Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM D6016-96 Standard Test Method for Determination of Nitrogen, Water Extractable in Leather
ASTM D6016-96(2001) Standard Test Method for Determination of Nitrogen, Water Extractable in Leather
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 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 D6556-17 Standard Test Method for Carbon Black&x2014;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-07 Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption
ASTM C1494-13(2018) Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
ASTM D6556-03 Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
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 D7678-17(2022) Standard Test Method for Total Oil and Grease (TOG) and Total Petroleum Hydrocarbons (TPH) in Water and Wastewater with Solvent Extraction using Mid-IR Laser Spectroscopy
ASTM D7678-17 Standard Test Method for Total Oil and Grease (TOG) and Total Petroleum Hydrocarbons (TPH) in Water and Wastewater with Solvent Extraction using Mid-IR Laser Spectroscopy
ASTM D8193-18 Standard Test Method for Total Oil and Grease (TOG) and Total Petroleum Hydrocarbon (TPH) in Water and Wastewater with Solvent Extraction Using Non-Dispersive Mid-IR Transmission Spectroscopy
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 D4129-05(2020) Standard Test Method for Total and Organic Carbon in Water by High Temperature Oxidation and by Coulometric Detection
ASTM D7573-18 Standard Test Method for Total Carbon and Organic Carbon in Water by High Temperature Catalytic Combustion and Infrared Detection
ASTM D7573-18a Standard Test Method for Total Carbon and Organic Carbon in Water by High Temperature Catalytic Combustion and Infrared Detection
ASTM D7573-09(2017) Standard Test Method for Total Carbon and Organic Carbon in Water by High Temperature Catalytic Combustion and Infrared Detection
ASTM D7573-18ae1 Standard Test Method for Total Carbon and Organic Carbon in Water by High Temperature Catalytic Combustion and Infrared Detection
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 D5373-08 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal
ASTM E385-11 Standard Test Method for Oxygen Content Using a 14-MeV Neutron Activation and Direct-Counting Technique
ASTM D6556-16 Standard Test Method for Carbon Black&x2014;Total and External Surface Area by Nitrogen Adsorption
ASTM D5291-92 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D5291-96 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D5291-16 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D5291-10(2015) Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D5291-09 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D6565-00 Standard Test Method for Determination of Water (Moisture) Content of Soil by the Time-Domain Reflectometry (TDR) Method
ASTM D6565-00(2005) Standard Test Method for Determination of Water (Moisture) Content of Soil by the Time-Domain Reflectometry (TDR) Method
ASTM D5465-16(2020) Standard Practices for Determining Microbial Colony Counts from Waters Analyzed by Plating Methods
ASTM D7283-06 Standard Test Method for Alpha- And Beta- Activity in Water By Liquid Scintillation Counting
ASTM D4928-00(2005) Standard Test Methods for Water in Crude Oils by Coulometric Karl Fischer Titration
ASTM D4928-00e1 Standard Test Methods for Water in Crude Oils by Coulometric Karl Fischer Titration
ASTM D4928-00 Standard Test Methods for Water in Crude Oils by Coulometric Karl Fischer Titration
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 D5916-96(2002) Standard Test Method for Detection and Enumeration of Clostridium perfringens from Water and Extracted Sediments by Membrane Filtration (MF)
ASTM D5916-96 Standard Test Method for Detection and Enumeration of Clostridium perfringens from Water and Extracted Sediments by Membrane Filtration (MF)
ASTM D5373-93(2002) Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal and Coke
ASTM D5373-93(1997) Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal and Coke
ASTM D5373-16 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 D5982-15 Standard Test Method for Determining Cement Content of Fresh Soil-Cement (Heat of Neutralization Method)
ASTM D5373-02 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal and Coke
ASTM D5373-02(2007) Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal and Coke
ASTM D4007-81(1995)e1 Standard Test Method for Water and Sediment in Crude Oil by the Centrifuge Method (Laboratory Procedure)
ASTM D4007-02 Standard Test Method for Water and Sediment in Crude Oil by the Centrifuge Method (Laboratory Procedure)
ASTM D4007-02(2006) Standard Test Method for Water and Sediment in Crude Oil by the Centrifuge Method (Laboratory Procedure)
ASTM D4007-08 Standard Test Method for Water and Sediment in Crude Oil by the Centrifuge Method (Laboratory Procedure)
ASTM D4007-11(2016)e1 Standard test method for determination of water and sediment in crude oil by centrifugation (laboratory method)
ASTM D1428-82e1 Methods of Test for Sodium and Potassium in Water and Water-Formed Deposits by Flame Photometry
ASTM D5982-07 Standard Test Method for Determining Cement Content of Fresh Soil-Cement (Heat of Neutralization Method)
ASTM E1019-03 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM E1019-02 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM D5291-10 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D5291-21 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D4374-00 Standard Test Methods for Cyanides in Water--Automated Methods for Total Cyanide, Acid dissociable Cyanide, and Thiocyanate
ASTM D3651-11 Standard Test Method for Barium in Brackish Water, Seawater, and Brines
ASTM E1019-00 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM E1019-18 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM D1072-06 Standard Test Method for Total Sulfur in Fuel Gases by Combustion and Barium Chloride Titration
ASTM C1494-01(2007) Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
ASTM C1494-13 Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
ASTM D5762-12 Standard Test Method for Nitrogen in Petroleum and Petroleum Products by Boat-Inlet Chemiluminescence
ASTM D7678-11 Standard Test Method for Total Petroleum Hydrocarbons (TPH) in Water and Wastewater with Solvent Extraction using Mid-IR Laser Spectroscopy
ASTM D4374-06 Standard Test Methods for Cyanides in Water-Automated Methods for Total Cyanide, Weak Acid Dissociable Cyanide, and Thiocyanate
ASTM D4517-04(2009) Standard Test Method for Low-Level Total Silica in High-Purity Water by Flameless Atomic Absorption Spectroscopy
ASTM D4007-11 Standard Test Method for Water and Sediment in Crude Oil by the Centrifuge Method (Laboratory Procedure)
ASTM D4007-11e1 Standard Test Method for Water and Sediment in Crude Oil by the Centrifuge Method (Laboratory Procedure)
ASTM D2709-96(2006) Standard Test Method for Water and Sediment in Middle Distillate Fuels by Centrifuge
ASTM D4282-95(2001) Standard Test Method for Determination of Free Cyanide in Water and Wastewater by Microdiffusion
ASTM D4282-95 Standard Test Method for Determination of Free Cyanide in Water and Wastewater by Microdiffusion
ASTM D4468-85(2011) Standard Test Method for Total Sulfur in Gaseous Fuels by Hydrogenolysis and
Rateometric Colorimetry
ASTM D1072-23 Standard Test Method for Total Sulfur in Fuel Gases by Combustion and Barium Chloride Titration
ASTM E1064-05 Standard Test Method for Water in Organic Liquids by Coulometric Karl Fischer Titration

VN-TCVN, Determination method and calculation method of total nitrogen in water

TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content

German Institute for Standardization, Determination method and calculation method of total nitrogen in water

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 ISO 14438:2002-09 Glass in building - Determination of energy balance value - Calculation method (ISO 14438:2002); German version EN ISO 14438:2002
DIN EN 17892:2022 Water quality - Determination of the sum of perfluorinated substances (Sum of PFAS) in drinking water - Method using liquid chromatography/mass spectrometry (LC/MS); German and English version prEN 17892:2022
DIN EN ISO 11704:2017-10 Water quality - Gross alpha and gross beta activity - Test method using liquid scintillation counting (ISO/DIS 11704:2017); German and English version prEN ISO 11704:2017 / Note: Date of issue 2017-09-01*Intended as replacement for DIN EN ISO 11704 (20...
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 VDE 0848-1:2000 Safety in electrical, magnetic and electromagnetic fields - Part 1: Definitions, methods for measurement and calculation
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 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 17892:2022-09 Water quality - Determination of the sum of perfluorinated substances (Sum of PFAS) in drinking water - Method using liquid chromatography/mass spectrometry (LC/MS); German and English version prEN 17892:2022 / Note: Date of issue 2022-08-12
DIN 52102:2013-10 Test methods for aggregates - Determination of dry bulk density by the cylinder method and calculation of the ratio of density
DIN EN ISO 11704:2017 Water quality - Gross alpha and gross beta activity - Test method using liquid scintillation counting (ISO/DIS 11704:2017); German and English version prEN ISO 11704:2017
DIN EN ISO 15351:2010-08 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method) (ISO 15351:1999); German version EN ISO 15351:2010
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 38406-5:1983 German standard methods for the examination of water, waste water and sludge; cations (group E); determination of ammonia-nitrogen (E 5)
DIN EN 15242:2007 Ventilation for buildings - Calculation methods for the determination of air flow rates in buildings including infiltration English version of DIN EN 15242:2007-09
DIN 52102:2006 Test methods for aggregates - Determination of dry bulk density by the cylinder method and calcualtion of the ratio of density
DIN EN 15104:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods; German version EN 15104:2011
DIN 51900-3:2005-01 Testing of solid and liquid fuels - Determination of gross calorific value by the bomb calorimeter and calculation of net calorific value - Part 3: Method using adiabatic jacket / Note: To be replaced by DIN 51900 (2022-06).
DIN 52102:2013 Test methods for aggregates - Determination of dry bulk density by the cylinder method and calculation of the ratio of density
DIN 52102:2012 Test methods for aggregates - Determination of dry bulk density by the cylinder method and calcualtion of the ratio of density

Standard Association of Australia （SAA）, Determination method and calculation method of total nitrogen in water

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 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 2300.1.1:2008
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 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 1301.457:2020 Methods of test for pulp and paper, Method 457: Determination of moisture content in paper, board and pulps

Professional Standard - Coal, Determination method and calculation method of total nitrogen in 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 742.1-2011 Determination of total chrominum in mine water
MT/T 743.1-2011 Determination of total phosphorus in mine water
MT/T 744-1997 Determination of the gross αand grossβradioactivity of the groundwater in coal mines
MT/T 252-2000 Determination method of potassium ion and sodium ion in coal mine water
MT/T 203-1995 Determination method of calcium ion and magnesium ion in coal mine water
MT 252-1991 Determination method of potassium ion and sodium ion in coal mine water

Professional Standard - Urban Construction, Determination method and calculation method of total nitrogen in water

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

Danish Standards Foundation, Determination method and calculation method of total nitrogen in water

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/ISO 29441:2010 Water quality - Determination of total nitrogen after UV digestion - Method using flow analysis (CFA and FIA) and spectrometric detection
DS/EN ISO 15351:2010 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method)

Lithuanian Standards Office , Determination method and calculation method of total nitrogen in water

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 1611-2000 Confectionery. Methods for determination moisture and total solids content

AENOR, Determination method and calculation method of total nitrogen in water

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 40241-1:1973 METHOD OF DETERMINATION THE CONTENT IN CISTEMIC ACID OF WOOL HYDROLIZED BY MEANS OF ELECTROPHORESIS IN PAPER AND COLOURIMETRY.

CZ-CSN, Determination method and calculation method of total nitrogen in water

CSN 58 0703-7-1999 Testing methods of dehydrated products and seasonings - Part 7: Determinaton of total nitrogen
CSN 58 0703-8-1999 Testing methods of dehydrated products and seasonings - Part 8: Determination of ammoniacal nitrogen

Japanese Industrial Standards Committee (JISC), Determination method and calculation method of total nitrogen in water

JIS H 1612:1993 Methods for determination of nitrogen in titanium and titanium alloys
JIS K 0350-20-10:2001 Testing methods for detection and enumeration of coliform organisms in industrial water and waste water
JIS K 0350-40-10:2002 Testing method for enumeration of total bacteria in industrial water and wastewater
JIS K 0350-30-10:2002 Testing methods for detection and enumeration of heterotrophic bacteria in industrial water and wastewater
JIS K 0350-50-10:2006 Testing method for detection and enumeration of Legionella in industrial water and wastewater

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

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 19227-2003 Determination of nitrogen in coal and coke semi-micro gasification 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 23772-2009 Inorganic chemicals for industrial use.General method for the determination of total nitrogen content.Nessler's reagent colorimetric method
GB/T 14422-2008 Analysis of water used in boiler and cooling systems.Determination of benzotriazole
GB/T 14422-1993 Analysis of water used in boiler and cooling system. Determination of benzotriazole. Ultraviolet spectrophotometry
GB/T 12392-1990 Method for determination of total ascorbic acid in fruits,vegetables and derived products--Fluorometric method and colorimetric 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 15079.12-1994 Molybdenum concentrates-Determination of oil and moisture content
GB/T 6913.3-1986 Methods for analysis of water for boiler and for cooling--The determination of phosphates--Total phosphate
GB/T 6609.34-2009 Chemical analysis methods and determination of physical performance of alumina.Part 34:Method of calculating alumina content

Association Francaise de Normalisation, Determination method and calculation method of total nitrogen in water

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 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 V04-407:2002 Meat, meat product and fishery products - Determination of nitrogen content and calculation of the protein content - Kjeldahl method.
NF X31-505:1992 Soil quality - Physical methods - Method for determining the bulk volume and the water content of lumps of earth
NF M60-820*NF EN ISO 11704:2018 Water quality - Gross alpha and gross beta activity - Test method using liquid scintillation counting
NF V04-221-4*NF EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4 : determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
NF M60-819:2010 Water quality - Measurement of gross alpha and gross beta activity in non-saline water - Thin source deposit method.
NF EN 16300:2013 Carburants pour automobiles - Détermination de l'indice d'iode dans les esters méthyliques d'acides gras (EMAG) - Méthode de calcul à partir des données obtenues par chromatographie en phase gazeuse

British Standards Institution (BSI), Determination method and calculation method of total nitrogen in water

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 EN ISO 8968-4:2016 Milk and milk products. Determination of nitrogen content. Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
BS 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 684-2.8:1977 Methods of analysis of fats and fatty oils - Other methods - Determination of total neutral oil
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 11732:2005 Water quality. Determination of ammonium nitrogen. Method by flow analysis (CFA and FIA) and spectrometric detection
22/30461582 DC BS EN 673. Glass in building. Determination of thermal transmittance (U value). Calculation method
BS ISO 10704:2010 Water quality. Measurement of gross alpha and gross beta activity in non-saline water. Thin source deposit method
BS ISO 10704:2009 Water quality - Measurement of gross alpha and gross beta activity in non-saline water - Thin source deposit method
BS DD CEN/TS 15750:2009 Fertilizers - Determination of different forms of nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
BS EN ISO 11704:2018 Tracked Changes. Water quality. Gross alpha and gross beta activity. Test method using liquid scintillation counting
BS ISO 21939-1:2019 A method to calculate and express energy consumption of industrial wastewater treatment for the purpose of water reuse - Biological processes
BS 684 Sec.2.8:1977 Methods of analysis of fats and fatty oils. Other methods. Determination of total neutral oil
BS ISO 10705-3:2003 Water quality. Detection and enumeration of bacteriophages. Validation of methods for concentration of bacteriophages from water
BS 1016-102:2000 Methods for analysis and testing of coal and coke - Determination of total moisture of coke
BS EN ISO 18589-6:2021 Measurement of radioactivity in the environment. Soil - Gross alpha and gross beta activities. Test method using gas-flow proportional counting

European Committee for Standardization (CEN), Determination method and calculation method of total nitrogen in water

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 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 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
EN 13465:2004 Ventilation for buildings - Calculation methods for the determination of air flow rates in dwellings
EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
EN ISO 11704:2015 Water quality - Measurement of gross alpha and beta activity concentration in non-saline water - Liquid scintillation counting method (ISO 11704:2010)
EN ISO 18134-2:2017 Solid biofuels - Determination of moisture content - Oven dry method Part 2: Total moisture - Simplified method

KR-KS, Determination method and calculation method of total nitrogen in water

KS I 3202-2023 Testing methods for total organic carbon in highly purified water

RU-GOST R, Determination method and calculation method of total nitrogen in water

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 31956-2012 Water. Methods for determination of chromium (VI) and total chromium
GOST R 52991-2008 Water. Methods for determination of total and dissolved organic carbon
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 2082.2-1981 Molibdenum concentrates. Method for the determination of total moisture and oil content
GOST 28552-1990 Tea. Methods for determination of total, water-insoluble and water-soluble ash
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 R 54491-2011 Canned fruits. Method for determination of quinoline, triarylmethane and azo colours presence
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 33768-2015 Method determination of kinematic viscosity and calculation of dynamic viscosity of transparent and opaque liquids
GOST R 54751-2011 Food common salt. Calculation method for determination (measurement) of the principal substance by saline composition
GOST ISO 14438-2014 Glass and glass products. Determination of energy balance value. Calculation method
GOST 28656-1990 Liquefied hydrocarbon gases. Calculation method for density and saturated vapours pressure
GOST 17.5.4.02-1984 Nature protection. Recultivation of lands. Method of measurement and sum calculation of toxie salts in overburden and enclossing rocks
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

Association of German Mechanical Engineers, Determination method and calculation method of total nitrogen in water

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

工业和信息化部, Determination method and calculation method of total nitrogen in water

YB/T 4773-2019 Determination and calculation method of oxidation burning loss of steel billet
YS/T 1161.3-2016 Methods for analysis of pseudoboehmite Part 3: Determination of pore volume and specific surface area Nitrogen adsorption method

HU-MSZT, Determination method and calculation method of total nitrogen in water

MSZ 260/15.lap-1967

Korean Agency for Technology and Standards (KATS), Determination method and calculation method of total nitrogen in water

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 F 2550-2017(2022) Methods of test for total moisture content of aggregate and surface moisture in aggregate by drying
KS D ISO 10700-2008(2018) Steel and iron－Determination of manganese content－Flame atomic absorption spectrometric method
KS F 2550-2017 Methods of test for total moisture content of aggregate and surface moisture in aggregate by drying
KS M 2418-2006(2021) Standard test method for instrumental determination of carbon, hydrogen, and nitrogen in petroleum products and lubricants
KS M 2115-2017(2022) Testing method for water and sediment in distillate fuel by centrifuge

International Organization for Standardization (ISO), Determination method and calculation method of total nitrogen in water

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 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 10704:2009 Water quality - Measurement of gross alpha and gross beta activity in non-saline water - Thin source deposit method
ISO/DIS 21939-2 A method to calculate and express energy consumption of industrial wastewater treatment for the purpose of water reuse — Part 2: Accounting for energy recovery
ISO/FDIS 21939-2:2023 A method to calculate and express energy consumption of industrial wastewater treatment for the purpose of water reuse — Part 2: Accounting for energy recovery
ISO 16730-1:2015 Fire safety engineering - Procedures and requirements for verification and validation of calculation methods - Part 1: General
ISO 20380:2017 Public swimming pools — Computer vision systems for the detection of drowning accidents in swimming pools — Safety requirements and test methods

ZA-SANS, Determination method and calculation method of total nitrogen in water

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 4374:2007 Standard test methods for cyanides in water - Automated methods for total cyanide, weak acid dissociable cyanide, and thiocyanate

Professional Standard - Electricity, Determination method and calculation method of total nitrogen in water

DL/T 2296-2021 Determination method of total mercury in coal and coal ash direct combustion method

Professional Standard - Commodity Inspection, Determination method and calculation method of total nitrogen in water

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 1933.1-2007 Detection of Enterococci in food and water.Part 1: Rtethod for plate count and MPN

Professional Standard - Agriculture, Determination method and calculation method of total nitrogen in water

水和废水监测分析方法 5.2.4-2003 Chapter 5 Water and Wastewater Biological Monitoring Methods Chapter 2 Bacteriological Determination in Water 4 Determination of Total Bacteria in Water (B)
水和废水监测分析方法 5.2.5-2003 Chapter Five Water and Wastewater Biological Monitoring Methods Chapter Two Bacteriological Determination in Water Five Determination of Total Coliform Bacteria in Water (B)
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
GB 8857-1988 Method for determination of total ash and alkalinity of total ash and water-soluble ash in fruit and vegetable products
水和废水监测分析方法 5.2.9-2003 Chapter 5 Biomonitoring Methods of Water and Wastewater Chapter 2 Bacteriological Determination in Water 9. Rapid Determination of Total Coliforms in Water and Fecal Coliforms (C)

Canadian Standards Association (CSA), Determination method and calculation method of total nitrogen in water

CSA Z223.24 -M1983-1983 Method for the Measurement of Nitric Oxide and Nitrogen Dioxide in Air General Instruction No 1 R(1999)

National Aeronautics and Space Administration (NASA), Determination method and calculation method of total nitrogen in water

NASA NACA-TR-1098-1952 Summary of methods for calculating dynamic lateral stability and response and for estimating lateral stability derivatives

CEN - European Committee for Standardization, Determination method and calculation method of total nitrogen in water

EN ISO 8968-4:2001 Milk - Determination of Nitrogen Content - Part 4: Determination of Non-Protein Nitrogen Content
EN ISO 11704:2018 Water quality - Gross alpha and gross beta activity - Test method using liquid scintillation counting
EN ISO 20380:2017 Public swimming pools - Computer vision systems for the detection of drowning accidents in swimming pools - Safety requirements and test methods

IN-BIS, Determination method and calculation method of total nitrogen in water

ES-UNE, Determination method and calculation method of total nitrogen in water

UNE-EN ISO 11704:2018 Water quality - Gross alpha and gross beta activity - Test method using liquid scintillation counting (ISO 11704:2018) (Endorsed by Asociación Española de Normalización in February of 2019.)
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)

American Society of Mechanical Engineers (ASME), Determination method and calculation method of total nitrogen in water

ASME B5.57-1998 Methods for Performance Evaluation of Computer Numerically Controlled Lathes and Turning Centers

PL-PKN, Determination method and calculation method of total nitrogen in water

PN C04596-02-1990 Water and waste water Tests for zinc Determination of zinc by zincon method
PN A74855-04-1987 Sugar Test methods Determinution of moisturc content and dry substance by calculation

Canadian General Standards Board （CGSB), Determination method and calculation method of total nitrogen in water

CGSB 4.2 NO. 8.2-2004-CAN/CGSB-2004 M磂thodes pour 磂preuves textiles Textiles D磂termination de la torsion des fils M磂thode par comptage direct

Indonesia Standards, Determination method and calculation method of total nitrogen in water

SNI 06-6989.28-2005 Water and wastewater - Part 28: Test methods of total organic carbon (TOC)
SNI 06-6989.26-2005 Water and wastewater - Part 26: Test methods of total solid content by gravimetric analysis
SNI 2332.3-2015 Cara uji mikrobiologi - Bagian 3: Penentuan Angka Lempeng Total (ALT) pada produk perikanan

NL-NEN, Determination method and calculation method of total nitrogen in water

NEN 6523-1990 Water - A method for the calculation of the content of hydrogen carbonate, carbon dioxide and carbonate from total carbon dioxide content and the pH

YU-JUS, Determination method and calculation method of total nitrogen in water

JUS B.H8.338-1986 Methnds of analysis of coal and coke. Coke - Determination of total moisture

Professional Standard - Light Industry, Determination method and calculation method of total nitrogen in water

QB/T 2623.3-2003 Test methods of soaps Determination of total alkali content and total fatty matter content in soaps

GOSTR, Determination method and calculation method of total nitrogen in water

GOST 28656-2019 Liquefied hydrocarbon gases. Calculation method for determination of saturated vapour density and pressure

未注明发布机构, Determination method and calculation method of total nitrogen in water

BS EN 1136:1995(1999) Method for Determination of phosphorus content of fruit and vegetable juices : Spectrometric method
BS 684-2.8:1977(2009) Methods of analysis of Fats and fatty oils — Part 2 : Other methods — Section 2.8 : Determination of total neutral oil
BS EN 1141:1995(2000) Method for Determination of proline content of fruit and vegetable juices : Spectrometric method

ES-AENOR, Determination method and calculation method of total nitrogen in water

UNE 55-595-1981

BE-NBN, Determination method and calculation method of total nitrogen in water

NBN T 03-174-1980 Sodium sulphate for industrial use - Determination of sulphates content - Calculation method and barium sulphate gravimetric method

Professional Standard - Non-ferrous Metal, Determination method and calculation method of total nitrogen in water

YS/T 555.11-2009 Methods for chemical analysis of molybdenum concentrate.Determination of oil and moisture content.Gravimetry
YS/T 555.12-2006 Method for chemical analysis of molybdenum concentrate - Determination of total oil and water content

NZ-SNZ, Determination method and calculation method of total nitrogen in water

AS/NZS 2341.24:1996 Methods of Testing Bitumen and Related Roadmaking Products Method 24: Calculation of Non-Aqueous Volatiles Content (by Difference)

KE-KEBS, Determination method and calculation method of total nitrogen in water

KS 08-264-1981 KENYA STANDARD METHODS FOR ESTIMATION OF MOISTURE. TOTAL SIZE OR FINISH, ASH. FATTY MATTER AND DETERMINATION OF WATER-SOLUBLE MATTER IN TEXTILES

Professional Standard - Geology, Determination method and calculation method of total nitrogen in water

DZ/T 0064.76-2021 Methods of Analytical Groundwater Quality Part 76: Determination of Gross Alpha and Gross Beta Radioactivity Radiochemical Method

TR-TSE, Determination method and calculation method of total nitrogen in water

TS 3325-1979 FORMS AND THEIR ARRANGEMENT METHOD FOR MEASUREMENT OF HORIZONTAL ANGLE AND SUMMARIZED SET IN TRANGULATION NETWORK

American National Standards Institute （ANSI), Determination method and calculation method of total nitrogen in water

ANSI/ASTM E1585:1993 Test Method for Measuring and Calculating Emittance of Architectural Flat Glass Products using Spectrometric Measurements