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total nitrogen in surface water

total nitrogen in surface water, Total:227 items.

In the international standard classification, total nitrogen in surface water involves: Water quality, Wastes, Raw materials for rubber and plastics, Fertilizers, Products of the chemical industry, Inorganic chemicals, Test conditions and procedures in general, Geology. Meteorology. Hydrology, Accident and disaster control, Vocabularies, Ground service and maintenance equipment, Spices and condiments. Food additives, Microbiology, Plastics, Measurement of fluid flow, Sports equipment and facilities, Milk and milk products, Analytical chemistry, Heat pumps, Non-metalliferous minerals, Installations in buildings, Construction materials, Metrology and measurement in general.

RO-ASRO, total nitrogen in surface water

STAS 8683-1970 SURFACE AND WASTE WATERS Determination of ainm nia nitrogen
STAS 8911-1971 SURFACE AND WASTE WATERS Determination of total carbon dioxide
STAS 12200-1985 SLUDGES RESULTED FROM= SURFACE WATERS TREATMENT AND WASTE WATERS PURIFI- CATION Nitrogen content determination
STAS 9187-1984 SURFACE, UNDERGROUND AND WASTE WATERS Residuum determination
STAS 7852-1980 SURFACE AND WASTE WATERS Cadmiu determination
STAS 7795-1980 SURFACE AND WASTE WATERS Coppcr determination
STAS 8634-1970 SURFACE AND WASTE WATERS Iron determination
STAS 11422-1984 SURFACE AND WASTE WATERS Determination of molybdenum
STAS 8562-1970 SURFACE AND WASTE WATERS Determination of naphthalene
STAS 8563-1970 SURFACE AND WASTE WATERS Determination of hydrazine
STAS 8662-1970 SURFACE AND WASTE WATERS Manganse determination
STAS 9411-1983 SURFACE AND WASTE WATERS Determination of aluminium
STAS 8663-1970 SURFACE AND WASTE WATERS Chloride determination
STAS SR 12702-1997 Sludges resulted from the surface waters and wastewaters treatment. Vocabulary
STAS 7685-1966
STAS 8190-1968
STAS 8508-1970
STAS 8685-1970 SURFACE AND WASTE WATERS Determination of furfural
STAS 7884-1967
STAS 8288-1969
STAS 9375-1973 SURFACE AND WASTE WATER Determination of silicon content
STAS 7885-1967
STAS 7987-1967
STAS 8716-1970 SURFACE AND WASTE WATERS Determination of quinoline
STAS 8717-1970 SURFACE AND WASTE WATERS Determination of benzaldehyde
STAS 8601-1970 SURFACE AND WASTE WATERS Sulphate determination
STAS 8484-1969
STAS 8910-1971 SURFACE AND WASTE WATERS Determination of fluoride
STAS 8900/1-1971 SURFACE AND WASTE WATERS Nitrate determination
STAS 8582-1970 SURFACE AND WASTE WATERS a and β-naphtol determination
STAS 7510-1966
STAS 8295-1969
STAS 8581-1970 SURFACE AND WASTE WATERS Carbon disulfide determination
STAS 8900/2-1971 SURFACE AND WASTE WATERS Nitrite determination
STAS 7877-1987 SUKFACE WATERS AND WASTE WATERS Determination of petroleum products content
STAS 13094-1992 Sludges resulting from the surface waters and from the treatement of the used waters. Determination of the nickel content
STAS 12702-1989 MUDS RESULTED FROM SURFACE WATERS TREATMENT AND FROM USED WATERS CLEANING Terminology
STAS 9887-1974 SURFACE AND WASTE WATERS Determination of chemical oxygen demand (Potassium permanganate method)
STAS 12205-1984 SLUDGES RESULTED FROM SURFACE WATERS TREATING AND WASTE WATERS PURI- FICATION Phosphorus content determination
STAS SR 13181-1994 Sludges resulting from the surface waters treatment and used waters purging. Determination of the zinc content

Group Standards of the People's Republic of China, total nitrogen in surface water

T/QAS 071-2021 Determination of total nitrogen in brine Kjeldahl method
T/CHES 15-2017 Determination of Total Nitrogen in Water Quality Gas Phase Molecular Absorption Spectrometry
T/CPCIF 0140-2021 Catalyst carrier— Determination of surface area and pore volume for quasi-thin-water aluminit— Nitrogen adsorption method

NL-NEN, total nitrogen in surface water

NEN 6642-1992 Water-Calculation of total nitrogen content
NEN 6646-1990 Water - Photometric determination of the content of ammonium nitrogen and of the sum of the contents of ammoniacal and organically bound nitrogen according to Kjeldahl by continuous flow analysis
NEN 6482-1982 Water - Determination of the sum of ammoniacal and organically bound nitrogen according to Kjeldahl after mineralization with selenium
NEN 6481-1983 Water - Determination of the sum of ammoniacal and organically bound nitrogen according to Kjeldahl after mineralization with selenium

ZA-SANS, total nitrogen in surface water

SANS 5922:1978 Total moisture content of coal (nitrogen-oven method)
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

American Society for Testing and Materials (ASTM), total nitrogen in surface water

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 D6556-19a Standard Test Method for Carbon Black—Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-19 Standard Test Method for Carbon Black—Total and External Surface Area by Nitrogen Adsorption
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 D6556-17 Standard Test Method for Carbon Black&x2014;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 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 D6556-03 Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D8083-16 Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection
ASTM D6556-09 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 D6556-00a 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 D6556-10 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 D6556-07 Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption
ASTM D6000-96e1 Standard Guide for Presentation of Water-Level Information From Ground-Water Sites
ASTM D6556-14 Standard Test Method for Carbon Blackmdash;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-16 Standard Test Method for Carbon Black&x2014;Total and External Surface Area by Nitrogen Adsorption
ASTM D5176-20 Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D5073-90(1996)e1 Standard Practice for Depth Measurement of Surface Water
ASTM D3731-87(2004) Standard Practices for Measurement of Chlorophyll Content of Algae in Surface Waters
ASTM D5073-02 Standard Practice for Depth Measurement of Surface Water
ASTM D5073-02(2021) Standard Practice for Depth Measurement of Surface Water
ASTM D5073-21 Standard Practice for Depth Measurement of Surface Water
ASTM D5073-02(2013) Standard Practice for Depth Measurement of Surface Water
ASTM D5073-02(2007) Standard Practice for Depth Measurement of Surface Water
ASTM D4149-82(1998) Standard Classification for Sampling Phytoplankton in Surface Waters
ASTM D4149-82(2012) Standard Classification for Sampling Phytoplankton in Surface Waters
ASTM D5906-02(2007) Standard Guide for Measuring Horizontal Positioning During Measurements of Surface Water Depths
ASTM D5906-02 Standard Guide for Measuring Horizontal Positioning During Measurements of Surface Water Depths
ASTM D5906-96 Standard Guide for Measuring Horizontal Positioning During Measurements of Surface Water Depths
ASTM D5906-21 Standard Guide for Measuring Horizontal Positioning During Measurements of Surface Water Depths
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

Danish Standards Foundation, total nitrogen in surface water

DS/EN 13342:2001 Characterisation of sludges - Determination of total Kjeldahl nitrogen
DS/EN 13716:2002 Surface active agents - Determination of total base nitrogen - Potentiometric titration
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 15216:2008 Characterization of waste - Determination of total dissolved solids (TDS) in water and eluates

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

GB/T 10722-2003 Carbon black-Determination of total and external surface area by nitrogen adsorption
GB/T 10722-2014 Carbon black.Determination of total and external surface area.Nitrogen adsorption test method
GB/T 11894-1989 Water quality--Determination of total nitrogen--Alkaline potassium persulfate digestion-UV spectro photometric method

NO-SN, total nitrogen in surface water

NS 4745-1991 Water analysis - Determination of the sum of nitrite nitrogen and nitrate nitrogen
NS 4743-1993 Water analysis. Determination of total nitrogen after oxidation with peroxodisulphate
NS 4865-1983 Air quality - Determination of the sum of nitrite- and nitrate-nitrogen in precipitation

CZ-CSN, total nitrogen in surface water

CSN 83 0533 Cast.2-1979 Radiological analysis of surface water. Measurement of gross alpha activity
CSN 83 0533 Cast.3-1979 Radiological analysis of surface water. Measurement of gross bota aotivity
CSN ON 73 6805-1966 Hydrological data of surfaee water
CSN 83 0531 Cast.5-1978 Microblological analysis of surface water Total plate count at 20 °C
CSN 83 0531 Cast.4-1978 Microbiological analysis of surface water Total plate count at 37°C
CSN 75 7221-1998 Water quality - Classification of surface water quality
CSN 83 0540 Cast.13-1984 Chemical and physical analysis of waste water Determination of organic and total nitrogen
CSN 83 0603-1966 Quality inspection of surface water
CSN 58 0703-7-1999 Testing methods of dehydrated products and seasonings - Part 7: Determinaton of total nitrogen
CSN 83 0530 Cast.9-1978 Chemical and physical analysis of surfacc water. Determination of total filtrablo and nonfiltrable residua
CSN 83 0533 Cast.4-1979 Radiological analysis of surface water. Determination of uranium
CSN 83 0531 Cast.1-1981 Microbiologlcal analysis of surface water General regulations
CSN 83 0530 Cast.2-1981 Chemical and physical analysis of surface water. Sampling
CSN 83 0533 Cast.1-1979 Radiological analysis of surfaee water. General dáte
CSN 83 0532 Cast.4-1978 Biological anály sis of surface water. Determination of benthos
CSN 83 0530 Cast.44-1981 Chemical and physical analysis of surf ace water. Determination of lead
CSN 83 0530 Cast.42-1981 Chemical and physical analysis oí surface water. Determination of cadmium
CSN 83 0530 Cast.41-1981 Chemical and physical analysis of surface water. Determination of zlnc
CSN 83 0530 Cast.45-1981 Chemical and physical analysis of surface water. Determination of chromium
CSN 83 0530 Cast.48-1981 Chemical and physical analysis of surface water. Dctermination of arsenic
CSN 83 0530 Cast.49-1981 Chemical and physical analysis of surface water. Determination of seleni um
CSN 83 0530 Cast.40-1981 Chemical and physical analysis of surface water. Determination of silver
CSN 83 0530 Cast.47-1981 Chemical and physical analysis of surface watur. Determination of vanadium
CSN 83 0530 Cast.43-1981 Chemical and physical analysis of surface water. Determination of msrcury
CSN 83 0530 Cast.46-1981 Chemical and physical inalysis of surface water. Determination oí nickel
CSN 83 0530 Cast.38-1981 Chemical and physical analysis o! surface vvater. Dotenuination of aJuminium
CSN 83 0530 Cast.39-1981 Chemical and physicalanalysis nf surface water. Determinatton of copper
CSN 83 0530 Cast.12-1978 Chemical and physioal analysis of surface water. Determination of alkalinity
CSN 83 0531 Cast.7-1981 Microbíological analysis of surface water Determination of enterococci
CSN 83 0530 Cast.7-1978 Chemical and physioal analysis of sur?ace water. Deterniination of turbidity
CSN 83 0532 Cast.5-1979 Biological analysis of surface water. Determination of periphyton (Aufwuchs)
CSN 83 0530 Cast.3-1978 Chemical and physical analysis of surface water. Determination of temperature
CSN 83 0530 Cast.5-1978 Chemical and physical analysis of surface water. Determination of odour
CSN 83 0530 Cast.6-1978 Chemical and physical analysis of surface water. Dctcrmination of colour
CSN 83 0530 Cast.13-1978 Chemical and physioal analysis of surface water. Determination of acidity
CSN 83 0530 Cast.1-1981 Chemical and physical analysis of surface water. General regulations
CSN 83 0532 Cast.2-1978 Biological analysis of surface water. Determination of bioseston
CSN 83 0530 Cast.4-1978 Chemical and physioal analysis of surface water. Determination of pH
CSN 83 0530 Cast.11-1978 Chemical and physical analysis of surface water. Determination of dissolved oxygen
CSN 83 0530 Cast.50-1981 Chemical and physical analysis of surface water. Determination of barium
CSN 83 0531 Cast.3-1978 Microbiologícal analysls of surface water. Deterrninatiom of coliform bacteria
CSN 83 0532 Cast.8-1979 Biological analysis o? surface water. Determination of biogenic oxygen production
CSN 83 0530 Cast.8-1978 Chemical ancl physioal analysis of surface water. Detcrmination of transparenty

PL-PKN, total nitrogen in surface water

PN C04636-1986 Protection and development of environment Hydrosphere General guidelines concerned the protection of ground and surface water against the pollution

Professional Standard - Agriculture, total nitrogen in surface water

NY/T 1977-2010 Water-suluble fertilizers-Determination of total nitrogen, phosphorus and potassium content

Lithuanian Standards Office , total nitrogen in surface water

LST EN 13716-2002 Surface active agents - Determination of total base nitrogen - Potentiometric titration
LST EN 15216-2008 Characterization of waste - Determination of total dissolved solids (TDS) in water and eluates

AENOR, total nitrogen in surface water

UNE-EN 13716:2002 Surface active agents - Determination of total base nitrogen - Potentiometric titration.
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 15216:2008 Characterization of waste - Determination of total dissolved solids (TDS) in water and eluates

German Institute for Standardization, total nitrogen in surface water

DIN EN 13716:2003-05 Surface active agents - Determination of total base nitrogen - Potentiometric titration; German version EN 13716:2001
DIN 38404-14:1987 German standard methods for the examination of water, waste water and sludge; physical-chemical parameters (group C); determination of total alpha activity concentration in potable water, ground water and surface water (C 14)
DIN EN ISO 20236:2023 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN) and dissolved bound nitrogen (DN) after high temperature catalytic oxidative combustion (ISO 20236:2018)
DIN EN ISO 20236:2023-10 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN<(Index)b>) and dissolved bound nitrogen (DN<(Index)b>) after high temperature catalytic oxidative combustion (ISO/DIS 2023...
DIN 591-1:1989 Floor drains class L 15 with cleaning eye - Summary
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)

IN-BIS, total nitrogen in surface water

Professional Standard - Urban Construction, total nitrogen in surface water

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

Professional Standard - Environmental Protection, total nitrogen in surface water

HJ/T 199-2005 Water quality Determination of tota-nitrogen Gas-phase molecular absorption spectrometry
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 550-2009 Water quality.Determination of cobalt.5-CI-PADAB spectrophotometry

British Standards Institution (BSI), total nitrogen in surface water

BS EN 13716:2002 Surface active agents - Determination of total base nitrogen - Potentiometric titration
BS PD ISO/TR 21414:2016 Hydrometry. Groundwater. Surface geophysical surveys for hydrogeological purposes
BS EN ISO 20236:2021 Water quality. Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN_b) and dissolved bound nitrogen (DN_b) after high temperature catalytic oxidative combustion
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 ISO 25761:2008 Plastics - Polyols for use in the production of polyurethanes - Determination of basicity (total amine value), expressed as percent nitrogen
BS ISO 25761:2014 Plastics. Polyols for use in the production of polyurethanes. Determination of basicity (total amine value), expressed as percent nitrogen
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
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
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
BS EN 12616:2013 Surfaces for sports areas. Determination of water infiltration rate
BS EN ISO 7899-2:2000 Water quality. Detection and enumeration of intestinal enterococci in surface and waste water. Membrane filtration method

Association Francaise de Normalisation, total nitrogen in surface water

NF T73-282*NF EN 13716:2002 Surface active agents - Determination of total base nitrogen - Potentiometric titration.
NF EN 13716:2002 Agents de surface - Détermination de la teneur en azote total basique - Titrage potentiométrique
NF T90-236*NF EN ISO 20236:2021 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion
NF EN ISO 20236:2021 Qualité de l'eau - Dosage du carbone organique total (COT), carbone organique dissous (COD), azote lié total (TNb) et azote lié dissous (DNb) après combustion catalytique oxydante à haute température
NF P90-107*NF EN 12616:2013 Surfaces for sports areas - Determination of water infiltration rate
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.

VN-TCVN, total nitrogen in surface water

TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
TCVN 5591-1991 Surface water.General rules for measuring flow rate
TCVN 5295-1995 Water quality.General requirements for protection of surface and underground water from pollution caused by oil and oil products

International Organization for Standardization (ISO), total nitrogen in surface water

ISO 21793:2020 Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb), dissolved bound nitrogen (DNb), total bound phosphorus (TPb) and dissolved boun
ISO/TR 21414:2016 Hydrometry - Groundwater - Surface geophysical surveys for hydrogeological purposes
ISO 20236:2018 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion
ISO/CD 20236 Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN b) and dissolved bound nitrogen (DN b) after high temperature catalytic oxidative combustion
ISO/DIS 20236:2023 Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN b) and dissolved bound nitrogen (DN b) after high temperature catalytic oxidative combustion
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 25761:2008 Plastics - Polyols for use in the production of polyurethanes - Determination of basicity (total amine value), expressed as percent nitrogen
ISO 25761:2014 Plastics - Polyols for use in the production of polyurethanes - Determination of basicity (total amine value), expressed as percent nitrogen

YU-JUS, total nitrogen in surface water

JUS H.G8.298-1987 Reagents. Oxaiic acid dihydrate. Determination of total nitrogen content. Colorimetric metbod
JUS H.G8.158-1984 Reagents. Sodium carbonate anhydrous and sodium carbonate decahydrate. Determination of total ni-trogen contont. Colorimetric method

RU-GOST R, total nitrogen in surface water

GOST 22.6.02-1997 Safety in emergencies. Mobile surface water treatment units. General technical requirements
GOST 25855-1983 Level and discharge of surface waters. General requirements for measurement
GOST 17.1.3.04-1982 Nature protection. Hydrosphere. General requirements for surface and underground water control against pollution by pesticides
GOST 17.1.3.11-1984 Nature protection. Hydrosphere. General requirements for surface and underground water protection against pollution with numeral fertilizers
GOST 17.1.3.05-1982 Nature protection. Hydrosphere. General requirements for surface and underground water protection against pollution by oil and oil products
GOST 17.1.3.13-1986 Nature protection. Hydrosphere. General requirements for surface water protection against pollution
GOST 17.1.5.05-1985 Nature protection. Hydrosphere. General requirements for surface and sea waters, ice and atmospheric precipitation sampling

Society of Automotive Engineers (SAE), total nitrogen in surface water

SAE AIR4783-1994 Glossary of Terms - Aircraft Ground Refueling

European Committee for Standardization (CEN), total nitrogen in surface water

EN ISO 20236:2021 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion (ISO 20236:2018)
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
prEN ISO 20236:2021 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion (ISO 20236:2018)

未注明发布机构, total nitrogen in surface water

BS EN ISO 20236:2021(2022) Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion

ES-UNE, total nitrogen in surface water

UNE-EN ISO 20236:2022 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion (ISO 20236:2018)

Japanese Industrial Standards Committee (JISC), total nitrogen in surface water

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

Korean Agency for Technology and Standards (KATS), total nitrogen in surface 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

AT-ON, total nitrogen in surface water

OENORM EN ISO 20236:2021 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion (ISO 20236:2018)
ONORM M 7756-1997 Special requirements for heat pump-systems using ground-water, surface water or soil
ONORM M 7755-2-2000 Electrically driven heat pumps - Special requirements for heat pump-systems using groundwater, surface water or soil

BELST, total nitrogen in surface water

STB 17.06.02-02-2016 Environmental protection and nature use. Hydrosphere. Classification of surface water and ground water

GOSTR, total nitrogen in surface water

GOST R 59056-2020 Environmental protection. Surface and groundwater. General requirements for protection against pesticide contamination

水利部, total nitrogen in surface water

SL/T 788-2019 Determination of total nitrogen, volatile phenols, sulfides, anionic surfactants and hexavalent chromium in water quality continuous flow analysis-spectrophotometry

ASHRAE - American Society of Heating@ Refrigerating and Air-Conditioning Engineers@ Inc., total nitrogen in surface water

ASHRAE 4832-2006 Environmental Impacts of Surface Water Heat Pump Systems

Standard Association of Australia （SAA）, total nitrogen in surface 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/NZS 1254:2010

Professional Standard - Geology, total nitrogen in surface water

DZ/T 0064.9-1993 Determination of Total Dissolved Solids in Groundwater Quality Examination Methods

SE-SIS, total nitrogen in surface water

SIS SS 92 36 21-1989 Floor and wall surfaces in bathrooms — Determination of water tightness

CEN - European Committee for Standardization, total nitrogen in surface water

EN 15216:2007 Characterization of waste - Determination of total dissolved solids (TDS) in water and eluates

Professional Standard - Chemical Industry, total nitrogen in surface water

HG/T 3073-1999 Rubber compounding ingredients.Silica,precipitated,hydrated.Determination of specific surface area - Nitrogen adsorption method