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Determination method of total nitrogen in water quality

Determination method of total nitrogen in water quality, Total:499 items.

In the international standard classification, Determination method of total nitrogen in water quality involves: Water quality, Analytical chemistry, Soil quality. Pedology, Test conditions and procedures in general, Furniture, Wind turbine systems and other alternative sources of energy, Vocabularies, Non-metalliferous minerals, Environmental testing, Fertilizers, Fuels, Milk and milk products, Semiconductor devices, Organic chemicals, Radiation measurements, Radiation protection, Lubricants, industrial oils and related products, Petroleum products in general, Products of the chemical industry, Spices and condiments. Food additives, Natural gas, Semiconducting materials, Leather technology, Refractories, General methods of tests and analysis for food products, Inorganic chemicals, Animal feeding stuffs, Farm buildings, structures and installations, Biology. Botany. Zoology, Microbiology, Non-destructive testing, Rubber, Construction materials, Pesticides and other agrochemicals, Products of the textile industry, Textile fibres, Refrigerating technology, Air quality, Geology. Meteorology. Hydrology, Environmental protection, Metalliferous minerals, Electronic components in general, Fruits. Vegetables, Mechanical testing, Packaging materials and accessories, Measurement of fluid flow, Medical sciences and health care facilities in general, Shipbuilding and marine structures in general.

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

CJ 26.27-1991 Municipal sewage water quality inspection method standard Determination of total nitrogen Titration method after distillation
CJ 26.25-1991 Determination of Standard Ammonia Nitrogen in Municipal Sewage Water Quality Inspection Method
CJ 26.20-1991 Determination of Standard Total Chromium in Municipal Sewage Water Quality Inspection Method
CJ 26.13-1991 Municipal sewage water quality test method Determination of standard aniline Azo spectrophotometric method
CJ 26.5-1991 Municipal sewage water quality inspection method Standard gravimetric method for total solids
CJ 26.26-1991 Municipal sewage water quality inspection method standard Determination of nitrite nitrogen spectrophotometric method
CJ 26.28-1991 Municipal sewage water quality inspection method standard Determination of total phosphorus spectrophotometric method
CJ 26.29-1991 Municipal sewage water quality inspection method standard Determination of total organic carbon non-dispersive infrared method
CJ 26.7-1991 Water quality inspection method of urban sewage - Determination gravimetric method of standard oil
CJ 26.23-1991 Municipal sewage water quality inspection method standard Determination of total arsenic by silver diethyldithiocarbamate spectrophotometric method
CJ 26.10-1991 Determination of standard sulfide in urban sewage water quality inspection method
CJ 26.9-1991 Determination of Standard Cyanide in Municipal Sewage Water Quality Inspection Method
CJ 26.1-1991 Municipal sewage water quality inspection method standard pH value determination potentiometer method
CJ 26.11-1991 Municipal sewage water quality inspection method standard sulfate gravimetric method
CJ 26.3-1991 Water quality examination methods for urban sewage - Volumetric method for standard easily sinkable solids
CJ 26.2-1991 Municipal sewage water quality examination method standard gravimetric method for the determination of suspended solids
CJ 26.22-1991 Water quality inspection method of urban sewage standard Determination of cadmium dithizone spectrophotometric method
CJ 26.17-1991 Water quality examination methods for urban sewage Standard Determination of zinc dithizone spectrophotometric method
CJ 26.19-1991 Water quality inspection methods for municipal sewage Determination of standard lead dithizone spectrophotometric method
CJ 26.18-1991 Water quality examination methods for municipal sewage Determination of standard mercury cold atomic absorption spectrometry
CJ 26.6-1991 Municipal sewage water quality inspection method standard Determination of chemical oxygen demand Potassium dichromate method
CJ 26.14-1991 Municipal sewage water quality inspection method standard benzene series (C6-C8) determination by gas chromatography

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

JIS K 0170-3:2011 Testing methods for water quality by flow analysis -- Part 3: Total nitrogen
JIS K 0170-3:2019 Testing methods for water quality by flow analysis -- Part 3: Total nitrogen
JIS K 0400-44-40:2000 Water quality -- Determination of Kjeldahl nitrogen -- Method after mineralization with selenium
JIS K 0551:1994 Testing methods for total organic carbon in highly purified water
JIS K 0170-1:2011 Testing methods for water quality by flow analysis -- Part 1: Ammonium nitrogen
JIS K 0170-1:2019 Testing methods for water quality by flow analysis -- Part 1: Ammonium nitrogen
JIS K 0550:1994 Testing methods for detection and estimation of micro-biological contaminants in highly purified water
JIS K 0170-2:2011 Testing methods for water quality by flow analysis -- Part 2: Nitrite nitrogen and nitrate nitrogen
JIS K 0170-2:2019 Testing methods for water quality by flow analysis -- Part 2: Nitrite nitrogen and nitrate nitrogen
JIS K 0555:1995 Testing methods for determination of silica in highly purified water
JIS K 0170-4:2011 Testing methods for water quality by flow analysis -- Part 4: Orthophosphate and total phosphorus
JIS K 0170-4:2019 Testing methods for water quality by flow analysis -- Part 4: Orthophosphate and total phosphorus
JIS K 0556:1995 Testing methods for determination of anions in highly purified water
JIS K 0350-90-10:2005 Testing method for detection of sulfur bacteria in industrial water
JIS K 0350-80-10:2005 Testing method for detection of iron bacteria in industrial water
JIS K 0554:1995 Testing methods for concentration of fine particles in highly purified water
JIS K 0350-20-10:2001 Testing methods for detection and enumeration of coliform organisms in industrial water and waste water
JIS K 0125:1995 Testing methods for volatile organic compounds in industrial water and waste water
JIS K 0125:2016 Testing methods for volatile organic compounds in industrial water and waste water
JIS K 0350-70-10:2005 Testing method for detection of Sphaerotilus in industrial water
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
JIS K 0170-7:2011 Testing methods for water quality by flow analysis -- Part 7: Chromium (VI)
JIS K 0170-5:2011 Testing methods for water quality by flow analysis -- Part 5: Phenol index
JIS K 0170-5:2019 Testing methods for water quality by flow analysis -- Part 5: Phenol index
JIS K 0170-7:2019 Testing methods for water quality by flow analysis -- Part 7: Chromium (VI)

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

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 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 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 D5176-20 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 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 D1426-98 Standard Test Methods for Ammonia Nitrogen In Water
ASTM D5176-08(2015) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D3590-02(2006) Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D3590-89(1994)e1 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D5475-93(1997) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
ASTM D1426-03 Standard Test Methods for Ammonia Nitrogen In Water
ASTM D5475-93(2002) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
ASTM D3223-91 Standard Test Method for Total Mercury in Water
ASTM D3223-17 Standard Test Method for Total Mercury in Water
ASTM E258-67(2002) Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM D3228-22 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM C1494-01 Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
ASTM E258-67(1996)e1 Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM C1494-13(2018) Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
ASTM D4129-05(2020) Standard Test Method for Total and Organic Carbon in Water by High Temperature Oxidation and by Coulometric Detection
ASTM D3454-11 Standard Test Method for Radium-226 in Water
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 C562-91(2005) Standard Test Method for Moisture in a Graphite Sample
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 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 E258-07 Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM E1756-95 Standard Test Method for Determination of Total Solids in Biomass
ASTM E1756-01 Standard Test Method for Determination of Total Solids in Biomass
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 D5907-18 Standard Test Methods for Filterable Matter (Total Dissolved Solids) and Nonfilterable Matter (Total Suspended Solids) in Water
ASTM D3228-08(2014) Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D4129-98 Standard Test Method for Total and Organic Carbon in Water by High Temperature Oxidation and by Coulometric Detection
ASTM D4129-98(2003) Standard Test Method for Total and Organic Carbon in Water by High Temperature Oxidation and by Coulometric Detection
ASTM D412-98a(2002)e1 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers8212;Tension
ASTM D412-06ae1 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomersx2014;Tension
ASTM D4176-21 Standard Test Method for Free Water and Particulate Contamination in Distillate Fuels (Visual Inspection Procedures)
ASTM D4176-93(1997) Standard Test Method for Free Water and Particulate Contamination in Distillate Fuels (Visual Inspection Procedures)
ASTM D4176-02 Standard Test Method for Free Water and Particulate Contamination in Distillate Fuels (Visual Inspection Procedures)
ASTM D4176-22 Standard Test Method for Free Water and Particulate Contamination in Distillate Fuels (Visual Inspection Procedures)
ASTM E1756-08(2020) Standard Test Method for Determination of Total Solids in Biomass
ASTM E1756-08(2015) Standard Test Method for Determination of Total Solids in Biomass
ASTM E1756-08 Standard Test Method for Determination of Total Solids in Biomass
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 D4129-05 Standard Test Method for Total and Organic Carbon in Water by High Temperature Oxidation and by Coulometric Detection
ASTM D4129-05(2012) Standard Test Method for Total and Organic Carbon in Water by High Temperature Oxidation and by Coulometric Detection
ASTM D4129-05(2013) Standard Test Method for Total and Organic Carbon in Water by High Temperature Oxidation and by Coulometric Detection
ASTM D6452-99(2012)e1 Standard Guide for Purging Methods for Wells Used for Groundwater Quality Investigations
ASTM D5907-13 Standard Test Methods for Filterable Matter lpar;Total Dissolved Solidsrpar; and Nonfilterable Matter lpar;Total Suspended Solidsrpar; in Water
ASTM D6530-00(2013) Standard Test Method for Total Active Biomass in Cooling Tower Waters lpar;Kool Kount Assay; KKArpar;
ASTM D7598-09 Standard Test Method for Determination of Thiodiglycol in Water by Single Reaction Monitoring Liquid Chromatography/Tandem Mass Spectrometry
ASTM D7598-09e1 Standard Test Method for Determination of Thiodiglycol in Water by Single Reaction Monitoring Liquid Chromatography/Tandem Mass Spectrometry
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 F2096-11 Standard Test Method for Detecting Gross Leaks in Packaging by Internal Pressurization (Bubble Test)
ASTM D7184-12 Standard Test Method for Ultra Low Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
ASTM D7184-13 Standard Test Method for Ultra Low Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
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 D6317-98(2009) Standard Test Method for Low Level Determination of Total Carbon, Inorganic Carbon and Organic Carbon in Water by Ultraviolet, Persulfate Oxidation, and Membrane Conductivity Detection
ASTM D4839-03(2017) Standard Test Method for Total Carbon and Organic Carbon in Water by Ultraviolet, or Persulfate Oxidation, or Both, and Infrared Detection
ASTM D4176-04e1 Standard Test Method for Free Water and Particulate Contamination in Distillate Fuels (Visual Inspection Procedures)
ASTM D4176-04 Standard Test Method for Free Water and Particulate Contamination in Distillate Fuels (Visual Inspection Procedures)
ASTM D4176-04(2009) Standard Test Method for Free Water and Particulate Contamination in Distillate Fuels (Visual Inspection Procedures)
ASTM D4176-04(2014) Standard Test Method for Free Water and Particulate Contamination in Distillate Fuels (Visual Inspection Procedures)
ASTM D5997-15 Standard Test Method for On-Line Monitoring of Total Carbon, Inorganic Carbon in Water by Ultraviolet, Persulfate Oxidation, and Membrane Conductivity Detection
ASTM D6530-19 Standard Test Method for Total Active Biomass in Cooling Tower Waters (Kool Kount Assay; KKA)
ASTM D6317-98(2004) Standard Test Method for Low Level Determination of Total Carbon, Inorganic Carbon and Organic Carbon in Water by Ultraviolet, Persulfate Oxidation, and Membrane Conductivity Detection
ASTM D6317-98 Standard Test Method for Low Level Determination of Total Carbon, Inorganic Carbon and Organic Carbon in Water by Ultraviolet, Persulfate Oxidation, and Membrane Conductivity Detection
ASTM D7041-04 Standard Test Method for Determination of Total Sulfur in Light Hydrocarbons, Motor Fuels, and Oils by Online Gas Chromatography with Flame Photometric Detection
ASTM D7419-18 Standard Test Method for Determination of Total Aromatics and Total Saturates in Lube Basestocks by High Performance Liquid Chromatography (HPLC) with Refractive Index Detection
ASTM D5907-03 Standard Test Method for Filterable and Nonfilterable Matter in Water
ASTM D7678-11 Standard Test Method for Total Petroleum Hydrocarbons (TPH) in Water and Wastewater with Solvent Extraction using Mid-IR Laser Spectroscopy
ASTM D7184-15(2019)e1 Standard Test Method for Ultra Low Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
ASTM D7184-19 Standard Test Method for Ultra Low Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
ASTM D7184-15 Standard Test Method for Ultra Low Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
ASTM D7184-20 Standard Test Method for Ultra Low Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
ASTM D5904-02(2017) Standard Test Method for Total Carbon, Inorganic Carbon, and Organic Carbon in Water by Ultraviolet, Persulfate Oxidation, and Membrane Conductivity Detection
ASTM D8459-23 Standard Test Methods for Detecting Water Soluble Sulfates in Construction Soils

VN-TCVN, Determination method of total nitrogen in water quality

TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
TCVN 6053-2011 Water quality.Measurement of gross alpha activity in non-saline water.Thick source method
TCVN 6219-2011 Water quality.Measurement of gross beta activity in non-saline water.Thick source method
TCVN 6653-2000 Soil quality.Biological methods.Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes
TCVN 6189-1-2009 Water quality.Detection and enumeration of intestinal enterococci in surface and waste water.Part 1: Miniaturized method (most probable number) by inoculation in liquid medium

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

GOST 10671.4-2016 Reagents. Methods for determination of total nitrogen impurity
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 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 28738-2016 Reagents. Methods for determination of total sulphur impurity in organic solvents
GOST ISO 14238-2014 Soil quality. Biological methods. Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes
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 R 52717-2007 Work-place air. Determination of mass concentration of nitrogen dioxide. Method using detector tubes for short-term sampling with direct indication

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

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 9696-2007(2017) Water quality－Measurement of gross alpha activity in non-saline water－Thick source method
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 9697:2007 Water quality－Measurement of gross beta activity in non-saline water
KS I ISO 9696:2007 Water quality－Measurement of gross alpha activity in non-saline water－Thick source method
KS I ISO 10705-3:2021 Water quality — Detection and enumeration of bacteriophages —Part 3: Validation of methods for concentration of bacteriophages from water
KS M 2457-2003 Test method for chlorine content of light and middle distillates by oxidative microcoulometry
KS I ISO 9308-3:2009 Water quality-Detection and enumeration of Escherichia coli and coliform bacteria-Part 3: Miniaturized method(Most Probable Number) for the detection and enumeration of E. coli in surface and waste water
KS I ISO 10705-3:2015 Water quality — Detection and enumeration of bacteriophages — Part 3: Validation of methods for concentration of bacteriophages from water
KS I ISO 10705-3:2010 Water quality-Detection and enumeration of bacteriophages-Part 3:Validation of methods for concentration of bacteriophages from water
KS I ISO 7899-1:2009 Water quality-Detection and enumeration of intestinal enterococci-Part 1:Miniaturized method(Most Probable Number) for surface and waste water
KS I ISO 16266:2018 Water quality — Detection and enumeration of Pseudomonas aeruginosa — Method by membrane filtration
KS B ISO 2975-1-2014(2019) Measurement of water flow in closed conduits — Tracer methods — Part 1: General
KS M 9103-1996(2001) WATER QUALITY- DETERMINATION OF TOTAL MERCURY BY FLAMELESS ATOMIC ABSORPTION SPECTROMERTY(METHOD AFTER DIGESTION WITH BROMIN)
KS I 3226-2009 Method for determination of tetra-through octa-chlorodibenzo-p-dioxins, tetra-though octa-chlorodibenzofurans and coplanar polychlorobiphenyls in industrial water and wastewater
KS I ISO 10359-2:2008 Water quality-Determination of fluoride-Part 2:Determination of inorganically bound total fluoride after digestion and distillation

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

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
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 11732:2005 Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection (ISO 11732:2005)
EN ISO 10704:2015 Water quality - Measurement of gross alpha and gross beta activity in non-saline water - Thin source deposit method
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 14238:2013 Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes

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

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 23695:2023 Water quality — Determination of ammonium nitrogen in water — Small-scale sealed tube method
ISO 10704:2009 Water quality - Measurement of gross alpha and gross beta activity in non-saline water - Thin source deposit method
ISO 9697:2008 Water quality - Measurement of gross beta activity in non-saline water - Thick source method
ISO 9696:1992 Water quality; measurement of gross alpha activity in non-saline water; thick source method
ISO 9696:2007 Water quality - Measurement of gross alpha activity in non-saline water - Thick source method
ISO 29441:2010 Water quality - Determination of total nitrogen after UV digestion - Method using flow analysis (CFA and FIA) and spectrometric detection
ISO/CD 13646 Water quality — Determination of selected estrogens in whole water samples — Method using solid phase extraction (SPE) followed by chromatography coupled to mass spectrometric detection
ISO 28540:2011 Water quality - Determination of 16 polycyclic aromatic hydrocarbons (PAH) in water - Method using gas chromatography with mass spectrometric detection (GC-MS)
ISO 9308-3:1998 Water quality - Detection and enumeration of Escherichia coli and coliform bacteria in surface and waste water - Part 3: Miniaturized method (most probable number) by inoculation in liquid medium
ISO 10705-3:2003 Water quality - Detection and enumeration of bacteriophages - Part 3: Validation of methods for concentration of bacteriophages from water
ISO 7899-1:1998 Water quality - Detection and enumeration of intestinal enterococci in surface and waste water - Part 1: Miniaturized method (most probable number) by inoculation in liquid medium
ISO 10359-2:1994 Water quality - Determination of fluoride - Part 2: Determination of inorganically bound total fluoride after digestion and distillation

ZA-SANS, Determination method of total nitrogen in water quality

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

Professional Standard - Environmental Protection, Determination method of total nitrogen in water quality

HJ/T 199-2005 Water quality Determination of tota-nitrogen Gas-phase molecular absorption spectrometry
HJ 537-2009 Water quality.Determination of ammonia nitrogen.Distillation-neutralization titration
HJ 101-2019 Ammonia nitrogen water quality online automatic monitor technical requirements and detection methods
HJ 667-2013 Water quality.Determination of total nitrogen by continuous flow analysis (CFA) and N-(1-naphthyl)ethylene diamine dihydrochloride spectrophotometry
HJ 668-2013 Water quality.Determination of total nitrogen by flow injection analysis (FIA) and N-(1-naphthyl)ethylene diamine dihydrochloride spectrophotometry
HJ 636-2012 Water quality.Determination of total nitrogen.Alkaline potassium persulfate digestion UV spectrophotometric method
HJ 798-2016 Specifications Test Methods for Automatic/On-line Monitor of Total Chromium in Water
HJ 550-2009 Water quality.Determination of cobalt.5-CI-PADAB spectrophotometry

Danish Standards Foundation, Determination method of total nitrogen in water quality

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 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/EN ISO 11732:2005 Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection
DS/ISO 10704:2010 Water quality - Measurement of gross alpha and gross beta activity in non-saline water - Thin source deposit method
DS/ISO 17381:2007 Water quality - Selection and application of ready-to-use test kit methods in water analysis
DS/ISO 28540:2011 Water quality - Determination of 16 polycyclic aromatic hydrocarbons (PAH) in water - Method using gas chromatography with mass spectrometric detection (GC-MS)
DS/ISO 10705-3:2004 Water quality - Detection and enumeration of bacteriophages - Part 3: Validation of methods for concentration of bacteriophages from water
DS/ISO 11704:2010 Water quality - Measurement of gross alpha and beta activity concentration in non-saline water - Liquid scintillation counting method
DS/EN ISO 11905-1:2001 Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate
DS/EN ISO 9308-3/AC:2001 Water quality - Detection and enumeration of Escherichia coli and coliform bacteria in surface and waste water - Part 3: Miniaturized method (Most Probable Number) by inoculation in liquid medium
DS/EN ISO 9308-3:1999 Water quality - Detection and enumeration of Escherichia coli and coliform bacteria in surface and waste water - Part 3: Miniaturized method (Most Probable Number) by inoculation in liquid medium
DS/EN ISO 7899-1/AC:2001 Water quality - Detection and enumeration of intestinal enterococci in surface and waste water - Part 1: Miniaturized method (Most Probable Number) by inoculation in liquid medium
DS/EN ISO 7899-1:1999 Water quality - Detection and enumeration of intestinal enterococci in surface and waste water - Part 1: Miniaturized method (Most Probable Number) by inoculation in liquid medium
DS/EN ISO 23913:2009 Water quality - Determination of chromium(VI) - Method using flow analysis (FIA and CFA) and spectrometric detection

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

BS 7755-3.7:1995 Soil quality. Chemical methods. Determination of total nitrogen. Modified Kjeldahl method
BS ISO 23695:2023 Water quality. Determination of ammonium nitrogen in water. Small-scale sealed tube 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
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 EN 25663:1993 Water quality. Determination of Kjeldahl nitrogen. Method after mineralization with selenium
21/30396472 DC BS ISO 23695. Water quality. Determination of ammonium nitrogen in water. Small-scale sealed tube 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 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
21/30426875 DC BS ISO 23697-1. Water quality. Determination of total nitrogen (TNb) in water using small-scale sealed tubes. Part 1. Dimethylphenol based method
22/30455832 DC BS EN 17892. Water quality. Determination of the sum of perfluorinated substances (Sum of PFAS) in drinking water. Method using liquid chromatography/mass spectrometry (LC/MS)
BS ISO 23697-2:2023 Water quality. Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Chromotropic acid colour reaction
BS ISO 9697:2015 Water quality. Gross beta activity in non-saline water. Test method using thick source
DD ENV 12260-1996 Water quality. Determination of nitrogen. Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection
BS ISO 9696:2007 Water quality - Measurement of gross alpha activity in non-saline water - Thick source method
BS ISO 9697:2008 Water quality - Measurement of gross beta activity in non-saline water - Thick source method
BS ISO 10705-3:2003 Water quality. Detection and enumeration of bacteriophages. Validation of methods for concentration of bacteriophages from water
BS ISO 17381:2003 Water quality. Selection and application of ready-to-use test kit methods in water analysis
15/30331502 DC BS EN ISO 9696. Water quality. Measurement of gross alpha activity in non-saline water. Thick source method
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 7899-2:2000 Water quality. Detection and enumeration of intestinal enterococci in surface and waste water. Membrane filtration method
BS ISO 28540:2011 Water quality. Determination of 16 polycyclic aromatic hydrocarbons (PAH) in water. Method using gas chromatography with mass spectrometric detection (GC-MS)
BS EN 14362-1:2003 Textiles - Methods for the determination of certain aromatic amines derived from azo colorants - Detection of the use of certain azo colorants accessible without extraction
BS EN ISO 7899-1:1999 Water quality. Detection and enumeration of intestinal enterococci in surface and waste water. Miniaturized method (Most probable number) for surface and waste water
BS EN 14362-1:2012 Textiles. Methods for determination of certain aromatic amines derived from azo colorants. Detection of the use of certain azo colorants accessible with and without extracting the fibres
BS EN ISO 14362-1:2017 Textiles. Methods for determination of certain aromatic amines derived from azo colorants. Detection of the use of certain azo colorants accessible with and without extracting the fibres
BS EN ISO 9697:2019 Tracked Changes. Water quality. Gross beta activity. Test method using thick source
BS EN ISO 10704:2019 Tracked Changes. Water quality. Gross alpha and gross beta activity. Test method using thin source deposit
BS 1747-9:1987 Methods for measurement of air pollution. Determination of the mass concentration of nitrogen oxides in ambient air: chemiluminescence method
BS 6068 Sec.3.1:1993 Water quality. Radiological methods. Measurement of gross alpha activity in non-saline water:thick source method
BS EN ISO 9308-3:1999 Water quality. Detection and enumeration of Escherichia Coli and coliform bacteria in surface and waste water. Miniaturized method (most probable number) for the detection and enumeration of $7IE. coli$7R in surface and waste water
BS EN ISO 14238:2013 Soil quality. Biological methods. Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes
BS EN ISO 11704:2018 Tracked Changes. Water quality. Gross alpha and gross beta activity. Test method using liquid scintillation counting
BS EN 26461-1:1993 Water quality. Detection and enumeration of the spores of sulfite-reducing anaerobes (Clostridia). Method by enrichment in a liquid medium
PD ISO/TS 28581:2012 Water quality. Determination of selected non-polar substances. Method using gas chromatography with mass spectrometric detection (GC-MS)
BS EN 14362-2:2003 Textiles - Methods for the determination of certain aromatic amines deriv ed from azo colorants - Detection of the use of certain azo colorants accessible by extracting t he fibres
BS EN 14362-2:2003(2006) Textiles - Methods for the determination of certain aromatic amines deriv ed from azo colorants - Detection of the use of certain azo colorants accessible by extracting t he fibres
BS 6043-2-18:2001 Methods of sampling and test for carbonaceous materials used in aluminium manufacture. Electrode coke. Determination of total sulfur by the Eschka method
BS ISO 22863-10:2021 Fireworks. Test methods for determination of specific chemical substances. Nitrogen content in nitrocellulose by iron(II) sulfate titration
BS EN ISO 23913:2009 Water quality - Determination of Chromium(VI) - Method using flow analysis (FIA and CFA) and spectrometric detection
BS ISO 22066:2020 Water quality. Determination of total cyanide. Method using segmented flow injection, in-line ultraviolet digestion analysis by gas diffusion and amperometric detection
BS ISO 16145-4:2013 Ships and marine technology. Protective coatings and inspection method. Automated measuring method for the total amount of water-soluble salts
BS EN ISO 23753-1:2011 Soil quality. Determination of dehydrogenase activity in soil. Method using triphenyltetrazolium chloride (TTC)
BS EN ISO 9308-1:2000 Water quality - Detection and enumeration of Escherichia coli and coliform bacteria - Membrane filtration method
BS EN ISO 17993:2002 Water quality - Determination of 15 polycyclic aromatic hydrocarbons (PAH) in water by HPLC with fluorescence detection after liquid-liquid extraction

Group Standards of the People's Republic of China, Determination method of total nitrogen in water quality

T/CHES 15-2017 Determination of Total Nitrogen in Water Quality Gas Phase Molecular Absorption Spectrometry
T/CASAS 010-2019 Determination of Trace Impurities Concentration and Distribution in GaN Materials by Secondary Ion Mass Spectrometry
T/GRM 046-2022 Determination of Mercury in Gas Field Water
T/FJEMIA 8-2022 Determination of 13 Drugs and Metabolites in Sewage by Liquid Chromatography-Tandem Mass Spectrometry

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

GB/T 32437-2015 Testing methods for harmful substances of furniture.General guidelines
GB/T 30728-2014 Determination of nitrogen in solid biofuels
GB/T 11894-1989 Water quality--Determination of total nitrogen--Alkaline potassium persulfate digestion-UV spectro photometric method
GB/T 11446.8-2013 Test method for total organic carbon in electronic grade water
GB/T 11446.8-1997 Test method for total organic carbon in electronic grade water
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 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 11446.10-1997 Test method for total bacterial count in electronic grade water by membrane filters
GB/T 11446.10-2013 Test method for total bacterial count in electronic grade water by membrane filters
GB 8858-1988 Method for determination of dry matter and moisture content in fruit and vegetable products
GB/T 8858-1988 Method for determination of dry matter and water content in fruit and vegetable products
GB/T 13071-1991 Method of determing the radioactive ratio of U234/U238, TH230/TH232 in geological water samples

Indonesia Standards, Determination method of total nitrogen in water quality

SNI 06-2413-2002 Test methods for solid matter content in water
SNI 19-6964.7-2003 Seawater quality - Part 7: Test methods of nitrates (NO3-N) with cadmium reduction by spectrophotometry
SNI 06-6438-2000 Test methods for ferro bacteria in water and in water performed sediment
SNI ISO 9696:2009 Water quality - Measurement of gross alpha activity in non-saline water - Thick source method
SNI 19-6036-1999 Test method for hydrogen peroxide (H2O2) in waste water
SNI 03-6791-2002 Test method of cement content in soil-cement mixture by chemistry analysis
SNI 06-6858-2002 Test methods of total coli bacteria in water by membrane filters

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

DIN EN 25663:1993 Water quality; determination of Kjeldahl nitrogen; method after mineralization with selenium (ISO 5663:1984); German version EN 25663:1993
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 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 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 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 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 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 9697:2016 Water quality - Gross beta activity in non-saline water - Test method using thick source (ISO 9697:2015); German and English version FprEN ISO 9697:2015
DIN EN 25663:1993-11 Water quality; determination of Kjeldahl nitrogen; method after mineralization with selenium (ISO 5663:1984); German version EN 25663:1993
DIN EN ISO 11732:2005-05 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 EN ISO 9697:2020-12 Water quality - Gross beta activity - Test method using thick source (ISO 9697:2018); German version EN ISO 9697:2019
DIN EN ISO 9696:2018-04 Water quality - Gross alpha activity - Test method using thick source (ISO 9696:2017); German version EN ISO 9696:2017
DIN ISO 28540:2014-05 Water quality - Determination of 16 polycyclic aromatic hydrocarbons (PAH) in water - Method using gas chromatography with mass spectrometric detection (GC-MS) (ISO 28540:2011)
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 10704:2020-12 Water quality - Gross alpha and gross beta activity - Test method using thin source deposit (ISO 10704:2019); German version EN ISO 10704:2019
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 ISO 28540:2014 Water quality - Determination of 16 polycyclic aromatic hydrocarbons (PAH) in water - Method using gas chromatography with mass spectrometric detection (GC-MS) (ISO 28540:2011)
DIN EN ISO 9696:2018 Water quality - Gross alpha activity - Test method using thick source (ISO 9696:2017)
DIN 19746:2005-06 Soil quality - Determination of mineral nitrogen (nitrat and ammonium) in soil profiles (Nmin laboratory method)
DIN EN ISO 11704:2015-11 Water quality - Measurement of gross alpha and beta activity concentration in non-saline water - Liquid scintillation counting method (ISO 11704:2010); German version EN ISO 11704:2015 / Note: To be replaced by DIN EN ISO 11704 (2017-10).
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 ISO 10704:2015 Water quality - Measurement of gross alpha and gross beta activity in non-saline water - Thin source deposit method (ISO 10704:2009); German version EN ISO 10704:2015
DIN EN ISO 7899-1:1999-07 Water quality - Detection and enumeration of intestinal enterococci in surface and waste water - Part 1: Miniaturized method (most probable number) by inoculation in liquid medium (ISO 7899-1:1998); German version EN ISO 7899-1:1998
DIN 38409-9:1980-07 German standard methods for the examination of water, waste water and sludge; general measures of effects and substances (group H), determination of the settleable matter by volume in water and waste water (H9)
DIN 38409-10:1980-07 German standard methods for the examination of water, waste water and sludge; general measures of effects and substances (group H), determination of the settleable matter by mass concentration in water and waste water (H10)
DIN 50450-1:1987 Testing of materials for semiconductor technology; determination of impurities in carrier gases and doping gases; determination of water impurity in hydrogen, oxygen, nitrogen, argon and helium by using a diphosphorus pentoxide cell
DIN 38409-6:1986-01 German standard methods for the examination of water, waste water and sludge; summary indices of actions and substances (group H); water hardness (H 6)
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 ISO 14238:2011 Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes (ISO/DIS 14238:2011)
DIN 19746:2005 Soil quality - Determination of mineral nitrogen (nitrat and ammonium) in soil profiles (Nmin laboratory method)
DIN EN ISO 11905-1:1998-08 Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate (ISO 11905-1:1997); German version EN ISO 11905-1:1998
DIN 38407-42:2011 German standard methods for the examination of water, waste water and sludge - Jointly determinable substances (group F) - Part 42: Determination of selected polyfluorinated compounds (PFC) in water - Method using high performance liquid chromatography an
DIN 38412-16:1985 German standard methods for the examination of water, waste water and sludge; test methods using water organisms (group L); determination of chlorophyll a in surface water (L 16)
DIN 38409-16:1984 German standard methods for the examination of water, waste water and sludge; general measures of effects and substances (group H); determination of the phenol index (H 16)
DIN 38407-37:2013 German standard methods for the examination of water, waste water and sludge - Jointly determinable substances (group F) - Part 37: Determination of organochlorine pesticides, polychlorinated biphenyls and chlorobenzene in water - Method using gas chromat

AENOR, Determination method of total nitrogen in water quality

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 ISO 9697:2017 Water quality - Gross beta activity in non-saline water - Test method using thick source (ISO 9697:2015)
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-EN 25663:1994 WATER QUALITY. DETERMINATION OF KJELDAHL NITROGEN. METHOD AFTER MINERALIZATION WITH SELENIUM. (ISO 5663:1984).
UNE-EN ISO 11732:2005 Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection (ISO 11732:2005)
UNE-EN ISO 11905-1:1998 WATER QUALITY. DETERMINATION OF NITROGEN. PART 1: METHOD USING OXIDATIVE DIGESTION WITH PEROXODISULFATE. (ISO 11905-1:1997).

BE-NBN, Determination method of total nitrogen in water quality

NBN V 21-013-1978 Determination of the total nitrogen contaimng substances content of milk - Amido black method

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

DZ/T 0064.76-1993 Groundwater Quality Examination Methods Radiochemical Method Determination of Total α and Total β
DZ/T 0064.23-1993 Groundwater quality testing method Determination of iron by phenanthrene spectrophotometry
DZ/T 0064.9-1993 Determination of Total Dissolved Solids in Groundwater Quality Examination Methods
DZ/T 0064.18-1993 Groundwater quality testing method Determination of total chromium and hexavalent chromium by catalytic polarography
DZ/T 0064.7-1993 Determination of Eh Value in Groundwater Quality Inspection Method
DZ/T 0064.3-1993 Determination of temperature in underground water quality inspection method
DZ/T 0064.4-1993 Determination of Chromaticity in Groundwater Quality Inspection Method
DZ/T 0064.8-1993 Determination of suspended solids in groundwater quality testing methods
DZ/T 0064.6-1993 Determination of electrical conductivity by groundwater quality inspection method
DZ/T 0064.23-2021 Analytical methods for groundwater quality - Part 23: Determination of iron content by phenanthroline spectrophotometric method
DZ/T 0064.57-2021 Analytical Methods of Groundwater Quality Part 57: Determination of Ammonia Nitrogen by Nessler's Reagent Spectrophotometry
DZ/T 0064.76-2021 Methods of Analytical Groundwater Quality Part 76: Determination of Gross Alpha and Gross Beta Radioactivity Radiochemical Method
DZ/T 0064.9-2021 Methods of Analysis of Groundwater Quality Part 9: Gravimetric Method for Determination of Total Dissolved Solids

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

EN ISO 11732:1997 Water Quality - Determination of Ammonium Nitrogen by Flow Analysis (CFA and FIA) and Spectrometric Detection
EN ISO 10704:2019 Water quality - Gross alpha and gross beta activity - Test method using thin source deposit
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

NO-SN, Determination method of total nitrogen in water quality

NS 4865-1983 Air quality - Determination of the sum of nitrite- and nitrate-nitrogen in precipitation

Lithuanian Standards Office , Determination method of total nitrogen in water quality

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 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)
LST EN ISO 11732:2005 Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection (ISO 11732:2005)
LST ISO 9696:2008 Water quality - Measurement of gross alpha activity in non-saline water - Thick source method (ISO 9696:2007, identical)
LST ISO 9697:2009 Water quality - Measurement of gross beta activity in non-saline water - Thick source method (ISO 9697:2008, identical)
LST EN ISO 11905-1:2000 Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate (ISO 11905-1:1997)

Guangdong Provincial Standard of the People's Republic of China, Determination method of total nitrogen in water quality

DB44/T 1163-2013 Detection method of composite enzyme substrate for the total number of bacterial colonies in water

国家能源局, Determination method of total nitrogen in water quality

SY/T 7436-2019 Separation and detection method of neutral nitrogen compounds in petroleum geological samples

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

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 2239-2008 Determination of isometamidium residue in foodstuffs of animal origin for import and export.LC-MS/MS method
SN/T 4302-2015 Rapid detection method of tris-(aziridyl)phosphine oxide in textiles by gas chromatography-mass spectrometry
SN/T 0218-2014 Determination of pyrethrins residues in cereals for export.GC-MS method
SN/T 3613-2013 Test method for determining total volatile organic compounds from furniture
SN/T 1927-2007 Determination of cyadox residues in aquatic products for import and export.LC-MS/MS method
SN/T 2220-2008 Determination of benzodiazepine residues in foodstuffs of animal origin for import and export.HPLC-MS/MS metfod
SN/T 2221-2008 Determination of azaperone and its metabolite residues in foodstuffs of animal origin for import and export.GC-MS method
SN/T 3642-2013 Determination of metalaxyl residues in fruits for export.GC/MS method
SN/T 2216-2008 Determination of colchicine residues in foodstuffs of animal origin for import and export LC-MS/MS method
SN/T 0280-2012 Determination of dicloran residues in fruits for export
SN/T 0192-2017 Determination method of bromodifen residue in fruit for export
SN/T 1045.2-2002 Method for the determination of banned azo colourants in dyed textiles and leather products for import and export.Gas chromatography/mass spectrography method
SN/T 4319-2015 Detection of Microcystins in Exported Aquatic Products by Liquid Chromatography-Mass Spectrometry/Mass Spectrometry
SN/T 3643-2013 Determination of forchlorfenuron residue in fruits for export.LC-MS-MS method
SN/T 2290-2009 Determination of acetylsalicylic acid in cosmetics for import and export
SN/T 3616-2013 Determination of volatile organic compounds in wood materials.Headspace-GC-MS method
SN/T 0526-2015 Determination of piperonyl butoxide residues in foodstuffs for export.LC-MS/MS method
SN/T 1851-2006 Determination of retardant in textiles. GC-MS mothod
SN/T 3251-2012 Determination of 1,4-butanediol in toy material.Gas chromatography-mass spectrometry method
SN/T 2530-2010 Determination of polioviruses in shellfish, fruit, vegetable and water- Conventional RT-PCR and real-time RT-PCR
SN/T 1923-2007 Determination of glyphosate residues in food for import and export.HPLC-MS/MS method
SN/T 3538-2013 Determination of six kinds of artificial sweeteners in foodstuffs for export.LC-MS/MS method
SN/T 3649-2013 Determination of fluoroquinolones in feedstuff.LC-MS/MS method
SN/T 2623-2010 Determination of pyriproxyfen residues in foodstuffs for import and export.HPLC-MS/MS method
SN/T 3906-2014 Determination of kelevan in textiles for import and export.Liquid chromatography-tandem mass spectrometry method
SN/T 1974-2007 Determination of methylene blue residues in aquatic product for import and export.LC-MS/MS and HPLC method
SN/T 1873-2007 Determination of endosulfan residues in food for import and export.GC-MS

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

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 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 M60-819:2010 Water quality - Measurement of gross alpha and gross beta activity in non-saline water - Thin source deposit method.
NF EN ISO 11732:2005 Qualité de l'eau - Dosage de l'azote ammoniacal - Méthode par analyse en flux (CFA et FIA) et détection spectrométrique
NF M60-815:2008 Water quality - Measurement of gross alpha activity in non-saline water - Thick source method.
NF M60-816:2008 Water quality - Measurement of gross beta activity in non-saline water - Thick source method.
NF M07-058:1992 Produits pétroliers - Dosage de l'azote total dans les distillats pétroliers - Méthode par combustion et détection par chimioluminescence.
NF M60-816*NF EN ISO 9697:2019 Water quality - Gross beta activity - Test method using thick source
NF M60-815*NF EN ISO 9696:2017 Water quality - Gross alpha activity - Test method using thick source
NF T90-091*NF ISO 28540:2011 Water quality - Determination of 16 polycyclic aromatic hydrocarbons (PAH) in water - Method using gas chromatography with mass spectrometric detection (GC-MS).
NF M60-819*NF EN ISO 10704:2019 Water quality - Gross alpha and gross beta activity - Test method using thin source deposit
NF M60-820*NF EN ISO 11704:2018 Water quality - Gross alpha and gross beta activity - Test method using liquid scintillation counting
NF X31-505:1992 Soil quality - Physical methods - Method for determining the bulk volume and the water content of lumps of earth
NF T90-411:1989 Testing water. Detection and enumeration of groupe D streptococci. General methd by culture in liquid media (mpn).
NF X31-225*NF EN ISO 14238:2014 Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes
NF T90-385:2001 Water quality - Method for measuring the EROD enzyme activity in freshwater and saltwater fish.
NF EN ISO 14362-3:2017 Textiles - Méthodes de détermination de certaines amines aromatiques dérivées de colorants azoïques - Partie 3 : détection de l'utilisation de certains colorants azoïques susceptibles de libérer du 4-aminoazobenzène
NF ISO 13169:2019 Qualité de l'eau - Uranium - Méthode d'essai par comptage des scintillations alpha en milieu liquide
NF EN 16694:2015 Qualité de l'eau - Dosage du pentabromodiphényléther (PBDE) dans des échantillons d'eau totale - Méthode par extraction en phase solide (SPE) avec disques SPE, avec couplage chromatographie en phase gazeuse-spectrométrie de masse (CG-SM)
NF T90-260:2023 Qualité de l'eau - Caractérisation des méthodes d'analyses - Mesure du potentiel d'oxydoréduction dans l'eau
NF M60-820:2010 Water quality - Measurement of gross alpha and beta activity concentration in non-saline water - Liquid scintillation counting method.
NF EN ISO 14362-1:2017 Textiles - Méthodes de détermination de certaines amines aromatiques dérivées de colorants azoïques - Partie 1 : détection de l'utilisation de certains colorants azoïques accessibles avec ou sans extraction
NF ISO 8761:1990 Air des lieux de travail - Détermination de la concentration en masse du dioxyde d'azote - Méthode utilisant des tubes détecteurs pour échantillonnage rapide à lecture directe.
NF ISO 16308:2014 Qualité de l'eau - Détermination du glyphosate et de l'AMPA - Méthode par chromatographie en phase liquide à haute performance (CLHP) avec détection par spectrométrie de masse en tandem
NF EN ISO 7899-1:1999 Qualité de l'eau - Recherche et dénombrement des entérocoques intestinaux dans les eaux de surface et résiduaires - Partie 1 : méthode miniaturisée (nombre le plus probable) par ensemencement en milieu liquide
NF EN ISO 13165-1:2020 Qualité de l'eau - Radium 226 - Partie 1 : méthode d'essai par comptage des scintillations en milieu liquide
NF EN ISO 22125-1:2019 Qualité de l'eau - Technétium-99 - Partie 1 : méthode d'essai par comptage des scintillations en milieu liquide
NF T90-413:1985 Testing water - Detection and enumeration of coliforms and thermotolerant coliforms - General method by culture in liquid media (M.P.N.).
XP T90-224:2013 Water Quality - Determination of Trihalomethanes in swimming pool water - Method using either static headspace or purge-and-trap with thermal desorption, on-line with gas chromatographic analysis with mass spectrometric detection
NF X31-293-1:2011 Soil Quality - Determination of dehydrogenase activity in soils - Part 1 : method using triphenyltetrazolium chloride (TTC).

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

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(R2013)
AS 1141.6.1:1995 Methods for sampling and testing aggregates Method 6.1: Particle density and water absorption of coarse aggregate - Weighing - in-waer method

Professional Standard - Coal, Determination method of total nitrogen in water quality

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

BR-ABNT, Determination method of total nitrogen in water quality

AT-ON, Determination method of total nitrogen in water quality

ONORM M 6248-1988 Water quality; determlnation of Kjeldabl nitrogen; method ajter mineralization with selenium

CZ-CSN, Determination method of total nitrogen in water quality

CSN 58 0703-7-1999 Testing methods of dehydrated products and seasonings - Part 7: Determinaton of total nitrogen
CSN 65 2462-1981 Sodium Chloride [Salt) Method for Determination of Insoluble Substances In Water.

KR-KS, Determination method of total nitrogen in water quality

KS I 3202-2023 Testing methods for total organic carbon in highly purified water
KS I ISO 10705-3-2015 Water quality — Detection and enumeration of bacteriophages — Part 3: Validation of methods for concentration of bacteriophages from water
KS I ISO 10705-3-2021 Water quality — Detection and enumeration of bacteriophages —Part 3: Validation of methods for concentration of bacteriophages from water
KS I ISO 16266-2018 Water quality — Detection and enumeration of Pseudomonas aeruginosa — Method by membrane filtration
KS I ISO 9308-3-2009 Water quality－Detection and enumeration of Escherichia coli and coliform bacteria－Part 3: Miniaturized method(Most Probable Number) for the detection and enumeration of E. coli in surface and waste wa

FI-SFS, Determination method of total nitrogen in water quality

UY-UNIT, Determination method of total nitrogen in water quality

UNIT 413-1975

Professional Standard - Electron, Determination method of total nitrogen in water quality

SJ/T 11493-2015 Test method for measuring nitrogen concentration in silicon substrates by secondary ion mass spectrometry
SJ/T 11365-2006 Testing methods for hazardous substances in electronic information products

ES-UNE, Determination method of total nitrogen in water quality

UNE-EN ISO 9697:2019 Water quality - Gross beta activity - Test method using thick source (ISO 9697:2018) (Endorsed by Asociación Española de Normalización in August of 2019.)
UNE-EN ISO 9696:2018 Water quality - Gross alpha activity - Test method using thick source (ISO 9696:2017)
UNE-EN ISO 10704:2019 Water quality - Gross alpha and gross beta activity - Test method using thin source deposit (ISO 10704:2019) (Endorsed by Asociación Española de Normalización in May of 2019.)
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-ISO 10705-3:2021 Water quality. Detection and enumeration of bacteriophages. Part 3: Validation of methods for concentration of bacteriophages from water
UNE-EN ISO 9308-3/AC:2000 Water quality - Detection and enumeration of Escherichia coli and coliform bacteria - Part 3: Miniaturized method (Most Probable Number) for the detection and enumeration of E.coli in surface and waste water (ISO 9308-3:1998)

Liaoning Provincial Standard of the People's Republic of China, Determination method of total nitrogen in water quality

DB21/T 2071-2013 Determination method of total carbon in magnesia carbonaceous refractories

国家质量监督检验检疫总局, Determination method of total nitrogen in water quality

SN/T 1114-2014 Determination method for diconazole residues in fruits for export: liquid chromatography-mass spectrometry/mass spectrometry
SN/T 0220-2016 Detection method for carbendazim residues in exported fruits
SN/T 4777-2017 Method for detection of anthraquinone residues in exported tea: gas chromatography-mass spectrometry/mass spectrometry
SN/T 4653-2016 Method for detection of carbamate pesticide residues in exported Chinese medicinal materials using liquid chromatography-mass spectrometry/mass spectrometry

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

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 4.5.2.0-2005 Chapter 4 Testing of Toxic Substances in Aquatic Products Section 5 Determination of Histamine in Aquatic Products 2. Method 2 Enzyme-linked Immunoassay
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)
水产品质量安全检验手册 4.5.1.0-2005 Chapter 4 Testing of Toxic Substances in Aquatic Products Section 5 Determination of Histamine in Aquatic Products 1. Method 1 (GBT 5009.45-2003)
水产品质量安全检验手册 6.14.1.3-2005 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 (3) Arsenic spot method
水产品质量安全检验手册 6.14.1.2-2005 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 (2) Silver salt method
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 2.11.2.0-2005 Chapter II Basic Analysis Methods for Physical and Chemical Testing of Aquatic Products Eleventh Determination of Amino Acid Nitrogen in Aquatic Products (GBT 5009.39-2003) II. Colorimetry
水产品质量安全检验手册 2.11.1.0-2005 Chapter II Basic Analysis Methods for Physical and Chemical Testing of Aquatic Products Eleventh Determination of Amino Acid Nitrogen in Aquatic Products (GBT 5009.39-2003) 1. Formaldehyde value method
水产品质量安全检验手册 6.15.1.3-2005 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 (3) Dithizone Colorimetric Method
水产品质量安全检验手册 8.2.2.1-2005 Chapter 8 Inspection of other harmful substances in aquatic products Section 2 Determination of formaldehyde in aquatic products 2. Determination of formaldehyde in aquatic products (NY 5073-2001) (1) Identification method
水产品质量安全检验手册 2.15.1.0-2005 Chapter 2 Basic Analysis Methods for Physical and Chemical Testing of Aquatic Products Section 15 Determination of Total Acids in Aquatic Products (GBT 12456-1990) 1. Indicator 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 2.17.2.0-2005 Chapter 2 Basic Analysis Methods for Physical and Chemical Testing of Aquatic Products Section 17 Determination of Volatile Basic Nitrogen in Aquatic Products (GBT 5009.44-2003) 2. Trace Diffusion Method
水产品质量安全检验手册 8.1.2.0-2005 Chapter 8 Testing of Other Hazardous Substances in Aquatic Products Section 1 Determination of PCBs in Aquatic Products 2. Gas Chromatography (Test Method)
水产品质量安全检验手册 2.15.2.0-2005 Chapter 2 Basic Analysis Methods for Physical and Chemical Testing of Aquatic Products Section 15 Determination of Total Acids in Aquatic Products (GBT 12456-1990) 2. Potentiometric Titration
水产品质量安全检验手册 2.5.1.0-2005 Chapter 2 Basic Analysis Methods for Physical and Chemical Testing of Aquatic Products Section 5 Determination of Protein Content in Aquatic Products (GBT 5009.5-2003) 1. Method 1
水产品质量安全检验手册 2.5.2.0-2005 Chapter 2 Basic Analysis Methods for Physical and Chemical Testing of Aquatic Products Section 5 Determination of Protein Content in Aquatic Products (GBT 5009.5-2003) 2. Method 2
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
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)
水产品质量安全检验手册 6.14.2.2-2005 Chapter 6 Inspection of elements in aquatic products Section 14 Determination of total arsenic and inorganic arsenic in aquatic products (GBT 5009.11-2003) 2. Determination of inorganic arsenic (2) Silver salt method

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

YS/T 587.15-2023 Calcined coke for prebaked blocks— Part 15: Determination of total carbon,hydrogen and nitrogen contents

Hubei Provincial Standard of the People's Republic of China, Determination method of total nitrogen in water quality

DB42/T 275-2003 The method for determination of microcystins in water body

Jilin Provincial Standard of the People's Republic of China, Determination method of total nitrogen in water quality

DB22/T 2214-2014 Detection method of tapeworm and trematode in freshwater fish
DB22/T 2838-2017 Test method for 10 kinds of antibiotics in drinking water and source water by ultra-high performance liquid chromatography-mass spectrometry/mass spectrometry

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 of total nitrogen in water quality

GB/T 34641-2017 Non-destructive testing—Test method for determining image quality in direct thermal neutron radiographic examination
GB/T 33584.2-2017 Seawater quality requirements and analysis methods for seawater cooling system—Part 2: Determination of zinc
GB/T 33584.6-2017 Seawater quality requirements and analysis methods for seawater cooling system—Part 6: Determination of heterotrophic bacteria
GB/T 33584.4-2017 Seawater quality requirements and analysis methods for seawater cooling system—Part 4: Determination of sulfate
GB/T 33584.3-2017 Seawater quality requirements and analysis methods for seawater cooling system—Part 3: Determination of chloride
GB/T 33584.1-2017 Seawater quality requirements and analysis method for seawater cooling system—Part 1:Determination of calcium and magnesium

BELST, Determination method of total nitrogen in water quality

STB GOST R 51650-2001 Food stuffs. Methods for determination of benz(a)pyren fraction of total mass

National Health Commission of the People's Republic of China, Determination method of total nitrogen in water quality

GB 23200.25-2016 National food safety standards— Determination of oxadiazon residue in fruits
GB 23200.88-2016 National food safety standards— Determination of the multiple residue of organochlorine pesticides in aquatic products

HU-MSZT, Determination method of total nitrogen in water quality

MSZ MI 19389-1978

PL-PKN, Determination method of total nitrogen in water quality

PN-ISO 10705-3-2021-01 P Water quality -- Detection and enumeration of bacteriophages -- Part 3: Validation of methods for concentration of bacteriophages from water

YU-JUS, Determination method of total nitrogen in water quality

JUS H.Z1.137-1985 Testing of industrial vvaters. Determination of nitrite-nitrate and the combined nitrite-nitrate nitrogen, Spectrophotometric method

Shandong Provincial Standard of the People's Republic of China, Determination method of total nitrogen in water quality

DB37/T 343-2003 Determination method of phosphate content in cod and other aquatic products

IT-UNI, Determination method of total nitrogen in water quality

UNI 3619-1955 Procedures for chemical analysis of minerals. Determination of combined water in iron ore.
UNI 3894-1957 Procedures for the chemical analysis of minerals. Determination of the total iron content of chrome minerals. Volumetric method by means of disaggregation with sodium peroxide.
UNI 3665-1955 Procedures for chemical analysis of minerals. Determination of total alkali in iron ore. Gravimetric method, for standard analyses.

中华人民共和国环境保护部, Determination method of total nitrogen in water quality

GB 11894-1989 Water quality-Determination of total nitrogen-Alkaline potassium persulfate digestion-UV spectrophotometric method

KE-KEBS, Determination method of total nitrogen in water quality

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

TR-TSE, Determination method of total nitrogen in water quality

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

Guangxi Provincial Standard of the People's Republic of China, Determination method of total nitrogen in water quality

DB45/T 2138-2020 Real-time fluorescent RT-PCR method for nucleic acid detection of norovirus in water

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

BS EN ISO 9308-3:1999(2008)*BS 6068-4.10:1999 Water quality — Detection and enumeration of Escherichia coli and coliform bacteria — Part 3 : Miniaturized method (Most Probable Number) for the detection and enumeration of E. coli in surface and waste water

Ningxia Provincial Standard of the People's Republic of China, Determination method of total nitrogen in water quality

DB64/T 1682-2019 Rapid detection method for Pseudomonas aeruginosa in packaged drinking water

海关总署, Determination method of total nitrogen in water quality

SN/T 0654-2019 Determination of Captan Residues in Exported Fruits by Gas Chromatography and Gas Chromatography-Mass Spectrometry/Mass Spectrometry

NL-NEN, Determination method of total nitrogen in water quality

NEN-EN 196-21-1993 Methods of testing cement. Determination of the chloride, carbon dioxide and alkali content of cement