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surface water total nitrogen

surface water total nitrogen, Total:301 items.

In the international standard classification, surface water total nitrogen involves: Water quality, Analytical chemistry, Wastes, Raw materials for rubber and plastics, ENVIRONMENT. HEALTH PROTECTION. SAFETY, Fertilizers, Products of the chemical industry, Farming and forestry, Soil quality. Pedology, Inorganic chemicals, Test conditions and procedures in general, Environmental protection, Earthworks. Excavations. Foundation construction. Underground works, Geology. Meteorology. Hydrology, Installations in buildings, Accident and disaster control, Mining and quarrying, Edible oils and fats. Oilseeds, Vocabularies, Ground service and maintenance equipment, Cutting tools, Protective equipment, Telecontrol. Telemetering, Open systems interconnection (OSI), Spices and condiments. Food additives, Applications of information technology, Microbiology, Radiocommunications, Non-metalliferous minerals, Protection of and in buildings, Plastics, Pipeline components and pipelines, Character sets and information coding, External water conveyance systems, Milk and milk products, Sports equipment and facilities, Hydraulic energy engineering, External sewage systems, Measurement of fluid flow.

RO-ASRO, surface water total nitrogen

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 7312-1983 SURFACE AND RESIDUAL WATERS Determination of azote content
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 10064-1975 SURFACE AND WASTE WATERS Determination of phosphates
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 12875-1990 Surface waters and waste waters. Acetone content determination
STAS 8717-1970 SURFACE AND WASTE WATERS Determination of benzaldehyde
STAS 8507-1970
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 7167-1992 Surface and used water. Determination of phenolic compounds
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

HU-MSZT, surface water total nitrogen

MNOSZ 448-27.lap-1955

PL-PKN, surface water total nitrogen

PN C04576 ArkusZ14-1973 Water and w?sie water Tes?s for nitrogen Calcula?ion of to?al nitrogen
PN C04576 ArkusZ12-1973 Water and waste water Tests for nitrogenDetermination of total nitrogen of Kjeldahl
PN C04636-1986 Protection and development of environment Hydrosphere General guidelines concerned the protection of ground and surface water against the pollution
PN H74085-1963 Surface water ou?lets for roofs and ?erraces
PN C05560-01-1986 Water and waste water Tests for chlorophyll in surface water [ntroduction and scope of the standard
PN C04620 ArkusZ02-1974 Water and waste water Sampling methods Sampling of surface waters for physical-chemical and bacteriolo- gical

Jiangsu Provincial Standard of the People's Republic of China, surface water total nitrogen

DB32/T 4541-2023 Sea water quality evaluation guide for total nitrogen and total phosphorus
DB32/T 2962-2016 Technical Regulations on Nitrogen Control and Phosphorus Reduction of Rice in Taihu Lake Area
DB32/T 4188-2022 Table Structure and Identifier of Surface Water Resources Analysis and Evaluation Database

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

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/SHZSAQS 00004-2021 Technical regulations for joint utilization of surface water and groundwater for cotton drip irrigation on the north slope of Tianshan Mountains
T/CHES 82-2022
T/CPCIF 0140-2021 Catalyst carrier— Determination of surface area and pore volume for quasi-thin-water aluminit— Nitrogen adsorption method

National Metrological Verification Regulations of the People's Republic of China, surface water total nitrogen

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

NL-NEN, surface water total nitrogen

NEN 6642-1992 Water-Calculation of total nitrogen content
NEN 6600-1981 Waste water, surf ace water and sludge - Sampling
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
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
NPR 6600-1993 Waste water, surface water, sediment and sludge. Sampling

Taiwan Provincial Standard of the People's Republic of China, surface water total nitrogen

CNS 3944-1976 Method for Determination of Total Kjeloahl Nitrogen in Polluted and Waste Water

ZA-SANS, surface water total nitrogen

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), surface water total nitrogen

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 D6556-17 Standard Test Method for Carbon Black&x2014;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 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 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 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 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 D6556-10 Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-04 Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-00a Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-01a Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-01 Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-07 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 D4149-82(2004) Standard Classification for Sampling Phytoplankton in Surface Waters
ASTM D6556-16 Standard Test Method for Carbon Black&x2014;Total and External Surface Area by Nitrogen Adsorption
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 D5176-20 Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection

Heilongjiang Provincial Standard of the People's Republic of China, surface water total nitrogen

DB23/T 3310-2022 Water quality total nitrogen monitoring technical specification
DB23/T 2000-2017 Screening of Rice Varieties Tolerant to Low Nitrogen in Cold Regions
DB23/T 2668-2020 Technical regulations for staged diagnosis of total nitrogen fertilizer control in rice
DB23/T 3589-2023 Technical specifications for surface runoff water quality early warning and forecasting models

Professional Standard - Agriculture, surface water total nitrogen

SL/T 788.1-2019 Part 1: Determination of total nitrogen in water quality
NY/T 1977-2010 Water-suluble fertilizers-Determination of total nitrogen, phosphorus and potassium content
GB 3838-1983 Environmental Quality Standards for Surface Water

Danish Standards Foundation, surface water total nitrogen

DS 223:1991 Water analysis. Determination of the sum of nitrite- and nitrate-nitrogen
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/EN 13757-6:2008 Communication systems for meters and remote reading of meters - Part 6: Local Bus
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 5667-23:2011 Water quality - Sampling - Part 23: Guidance on passive sampling in surface waters

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

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 23835.12-2009 Lithium perchlorate anhydrous.Part 12:Determination of total nitrogen content
GHZB 1-1999 Environmental quality standard for surface water
GB 3838-2002 Environmental quality standards for surface water
GB/T 11894-1989 Water quality--Determination of total nitrogen--Alkaline potassium persulfate digestion-UV spectro photometric method

NO-SN, surface water total nitrogen

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, surface water total nitrogen

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 75 1400-1997 Hydrological data on surface water
CSN 73 6805-1975 Hydrological data of surfaeo 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 ON 73 6805-1966 Hydrological data of surfaee water
CSN 75 7221-1998 Water quality - Classification of surface water quality
CSN ON 73 6931-1966 Surfncc and Subsurface Field Drainage Systems
CSN 83 0603-1966 Quality inspection of surface water
CSN 83 0540 Cast.13-1984 Chemical and physical analysis of waste water Determination of organic and total nitrogen
CSN 58 0703-7-1999 Testing methods of dehydrated products and seasonings - Part 7: Determinaton of total nitrogen
CSN 83 0530 Cast.9-1978 Chemical and physical analysis of surfacc water. Determination of total filtrablo and nonfiltrable residua
CSN 83 0532 Cast.1-1979 Biological analysis of surface water. General data
CSN 83 0533 Cast.4-1979 Radiological analysis of surface water. Determination of uranium
CSN 83 0901-1985 Protection of surface water again pollution. General requirements.
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

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

JIS K 0102-2:2022 Testing methods for industrial water and industrial wastewater -- Part 2: Inorganic anions, ammonium ion, organic nitrogen, total nitrogen and total phosphorus
JIS B 8570-1:2005 Meters for cold water and hot water -- Part 1: General specifications
JIS B 8570-1:2013 Meters for cold water and hot water.Part 1: General specifications
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

SE-SIS, surface water total nitrogen

SIS SS 02 81 86-1985 Determination of total arsenic in water - Silver diethyldithiocarbamate spectrometric method
SIS SS 02 81 33-1991 Determination of the sum of the nitrite and nitrate nitrogen content of water

Professional Standard - Environmental Protection, surface water total nitrogen

HJ/T 102-2003 The technical requirement for water quality automatic analyzer of total nitrogen
HJ/T 199-2005 Water quality Determination of tota-nitrogen Gas-phase molecular absorption spectrometry
HJ/T 91-2002 Technical Specifications Requirements for Monitoring of Surface Water and Waste Water
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 1236-2021 Technical specifications for remote sensing investigation of risk sources in centralized surface water drinking water sources
HJ 550-2009 Water quality.Determination of cobalt.5-CI-PADAB spectrophotometry
HJ 932-2017 Encoding rules for water body codes for surface water environment in China
HJ 91.2-2022 Technical specifications for surface water environmental quality monitoring
HJ 915-2017 Technical Specifications for Surface Water Automatic Monitoring (Trial)
HJ 522-2009 Codes for surface-water environmental function zone categories

Lithuanian Standards Office , surface water total nitrogen

LST EN 13716-2002 Surface active agents - Determination of total base nitrogen - Potentiometric titration
LST EN 13757-6-2009 Communication systems for meters and remote reading of meters - Part 6: Local Bus
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)

AENOR, surface water total nitrogen

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).

German Institute for Standardization, surface water total nitrogen

DIN EN 13716:2003-05 Surface active agents - Determination of total base nitrogen - Potentiometric titration; German version EN 13716:2001
DIN EN 13716:2003 Surface active agents - Determination of total base nitrogen - Potentiometric titration; German version EN 13716:2001
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 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 20236:2023-10 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 EN ISO 13395:1996-12 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 5667-23:2011-06 Water quality - Sampling - Part 23: Guidance on passive sampling in surface waters (ISO 5667-23:2011); German Version EN ISO 5667-23:2011

IN-BIS, surface water total nitrogen

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

EN 13716:2001 Surface active agents - Determination of total base nitrogen - Potentiometric titration
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)
EN ISO 5667-23:2011 Water quality - Sampling - Part 23: Guidance on passive sampling in surface waters
EN 13244-1:2002 Plastics piping systems for buried and above-ground pressure systems for water for general purposes, drainage and sewerage - Polyethylene (PE) - Part 1: General

Professional Standard - Urban Construction, surface water total nitrogen

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

Guangxi Provincial Standard of the People's Republic of China, surface water total nitrogen

DB45/T 1557-2017 Technical Regulations for Monitoring Sugarcane Field Surface Runoff and Underground Leaching Nitrogen and Phosphorus Loss

British Standards Institution (BSI), surface water total nitrogen

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 EN ISO 5667-23:2011 Water quality. Sampling. Guidance on passive sampling in surface waters
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 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 ISO 23697-1:2023 Water quality. Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Dimethylphenol 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
BS 8582:2013 Code of practice for surface water management for development sites
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
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 ISO 14592-1:2003 Water quality - Evaluation of the aerobic biodegradability of organic compounds at low concentrations - Shake-flask batch test with surface water or surface water/sediment suspensions
BS EN ISO 11298-1:2011 Plastics piping systems for renovation of underground water supply networks. General
BS EN ISO 1452-1:2010 Plastics piping systems for water supply and for buried and above-ground drainage and sewerage under pressure. Unplasticized poly(vinyl chloride) (PVC U). General
BS EN ISO 1452-1:2009 Plastics piping systems for water supply and for buried and above-ground drainage and sewerage under pressure - Unplasticized poly(vinyl chloride) (PVC U) - General
BS EN 12616:2013 Surfaces for sports areas. Determination of water infiltration rate
BS EN 13244-1:2002 Plastics piping systems for buried and above-ground pressure systems for water for general purposes,drainage and sewerage - Polyethylene (PE) - Part 1:General

Association Francaise de Normalisation, surface water total nitrogen

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 E75-300:1990 Diamond or cubic boron nitride grinding wheels. General survey : designation - Marking.
NF EN ISO 13395:1996 Qualité de l'eau - Détermination de l'azote nitreux et de l'azote nitrique et de la somme des deux par analyse en flux (CFA et FIA) et détection spectrométrique
NF X10-960-1:2013 Water and geothermal drilling - Vertical geothermal probe - Part 1 : general
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 T90-511-23*NF EN ISO 5667-23:2011 Water quality - Sampling - Part 23 : guidance on passive sampling in surface waters.
NF P90-107*NF EN 12616:2013 Surfaces for sports areas - Determination of water infiltration rate
NF EN ISO 5667-23:2011 Qualité de l'eau - Échantillonnage - Partie 23 : lignes directrices pour l'échantillonnage passif dans les eaux de surface

GOSTR, surface water total nitrogen

GOST R 59054-2020 Environmental protection. Surface and underground water. Classification of water bodies
GOST R 59056-2020 Environmental protection. Surface and groundwater. General requirements for protection against pesticide contamination

Hubei Provincial Standard of the People's Republic of China, surface water total nitrogen

DB42/T 1649.1-2021 Technical regulations for reducing nitrogen and phosphorus emissions from surface runoff of agricultural land Part 1: Slope farmland
DB42/T 1420-2018 Technical Regulations for Prevention and Control of Nitrogen and Phosphorus Loss in Surface Runoff of Paddy Fields
DB42/T 1425-2018 Technical regulations for the prevention and control of nitrogen and phosphorus loss in surface runoff of cotton fields
DB42/T 1649.3-2022 Technical regulations for reducing nitrogen and phosphorus emissions from surface runoff of agricultural land Part 3: Comprehensive rice and shrimp farming fields

VN-TCVN, surface water total nitrogen

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

YU-JUS, surface water total nitrogen

JUS H.G8.447-1990 Reagents. Zine sulphate heptahydrate. Determination of total nitrogen content. Colorimetric method
JUS H.G8.298-1987 Reagents. Oxaiic acid dihydrate. Determination of total nitrogen content. Colorimetric metbod
JUS H.G8.261-1987 Reagents. Barium chloride dihydrate. Determination of total nitrogen content. Colorimetric method
JUS H.G8.064-1983 Reagents. Copper sulphate pentahydrate. Determination of total nitrogen content. Colorimetric method
JUS H.G8.280-1987 Reagents. lron(ll)sulphate heptahydrate. Determination of total nitrogen content. Colorimetric method
JUS H.G8.158-1984 Reagents. Sodium carbonate anhydrous and sodium carbonate decahydrate. Determination of total ni-trogen contont. Colorimetric method

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

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 23697-2:2023 Water quality — Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes — Part 2: Chromotropic acid colour reaction
ISO 25761:2014 Plastics - Polyols for use in the production of polyurethanes - Determination of basicity (total amine value), expressed as percent nitrogen
ISO 5667-23:2011 Water quality - Sampling - Part 23: Guidance on passive sampling in surface waters
ISO 23697-1:2023 Water quality — Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes — Part 1: Dimethylphenol colour reaction
ISO 5667-18:2001/cor 1:2008 Water quality - Sampling - Part 18: Guidance on sampling of groundwater at contaminated sites; Technical Corrigendum 1
ISO 14592-1:2002 Water quality - Evaluation of the aerobic biodegradability of organic compounds at low concentrations - Part 1: Shake-flask batch test with surface water or surface water/sediment suspensions

Indonesia Standards, surface water total nitrogen

SNI 03-3970-1995 Measurement method for free ground water surface level in well
SNI 6989.57-2008 Water and waste water - Part 57 : Sampling method for surface water

RU-GOST R, surface water total nitrogen

GOST 22.6.02-1997 Safety in emergencies. Mobile surface water treatment units. General technical requirements
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 25855-1983 Level and discharge of surface waters. General requirements for measurement

Qinghai Provincial Standard of the People's Republic of China, surface water total nitrogen

DB63/T 1962-2021 Technical Specifications for Organic Alternative Nitrogen Fertilizers in Spring Wheat

American Society of Civil Engineers (ASCE), surface water total nitrogen

ASCE 95-1998 Urban Subsurface Drainage

AT-ON, surface water total nitrogen

OENORM M 6231-2021 Ecological survey of standing surface waters
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

ITU-R - International Telecommunication Union/ITU Radiocommunication Sector, surface water total nitrogen

ITU-R P.836-1992 Surface Water Vapour Density
ITU-R P.836-6-2017 Water vapour: surface density and total columnar content
ITU-R P.836-2-2001 Water Vapour: Surface Density and Total Columnar Content
ITU-R P.836-1-1997 Water Vapour: Surface Density and Total Columnar Content

Professional Standard - Geology, surface water total nitrogen

DZ/T 0064.1-1993 General rules for groundwater quality inspection methods
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

未注明发布机构, surface water total nitrogen

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
BS EN ISO 13395:1996(1998) Water quality — Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
ISO 14592-1:2002/Cor 1:2003 Water quality -Evaluation of the aerobic biodegradability of organic compounds at low concentrations - Part I: Shake-flask batch test with surface water or surface watedsediment suspensions

ES-UNE, surface water total nitrogen

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)

Jiangxi Provincial Standard of the People's Republic of China, surface water total nitrogen

DB36/T 1353-2020 Technical regulations for the prevention and control of nitrogen and phosphorus loss in surface runoff of double-cropping paddy fields

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

SAE AIR4783-1994 Glossary of Terms - Aircraft Ground Refueling

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

KS E 4110-2006(2011) Gas pressure type moisture detector in coal and rock-dust mixtures
KS I ISO 13395:2008 Water quality-Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
KS I ISO 13395-2008(2018) Water quality－Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
KS I ISO 14592-1:2007 Water quality-Evaluation of the aerobic biodegradability of organic compounds at low concentrations-Part 1:Shake-flask batch test with surface water or surface water/sediment suspensions

Professional Standard - Water Conservancy, surface water total nitrogen

SL 63-1994 Quality standards for surface water resources
SL 63-1994（条文说明） Quality Standards for Surface Water Resources
SL 395-2007 Technological regulations for surface water resources quality assessment
SL 586-2012 Structure and identifier for groundwater database
SL 63-2007 Technical specification for quality assessment of surface water resources

Beijing Provincial Standard of the People's Republic of China, surface water total nitrogen

DB11/T 247-2004 Tabulation frame of groundwater database
DB11/T 247-2021 Groundwater database table structure
DB11/T 306.1-2005 Tabulation frame of water project database—Part 1：General rules

International Telecommunication Union (ITU), surface water total nitrogen

ITU-R P.836-4-2009
ITU-R P.836-4 FRENCH-2009 Water vapour: surface density and total columnar content
ITU-R P.836-4 SPANISH-2009 Water vapour: surface density and total columnar content
ITU-R P.836-2013 Water vapour: surface density and total columnar content
ITU-R P.836-5-2013 Water vapour: surface density and total columnar content

BELST, surface water total nitrogen

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

Shanxi Provincial Standard of the People's Republic of China, surface water total nitrogen

DB14/ 67-2014 Functional zoning of surface water environment in Shanxi Province
DB14/ 67-2019 Functional Zoning of Surface Water Environment in Shanxi Province

水利部, surface water total nitrogen

SL/T 788-2019 Determination of total nitrogen, volatile phenols, sulfides, anionic surfactants and hexavalent chromium in water quality continuous flow analysis-spectrophotometry
SL/T 478-2021 General principles for water conservancy database table structure and identifier compilation

ANS - American Nuclear Society, surface water total nitrogen

2.13-1979 Evaluation of Surface-Water Supplies for Nuclear Power Sites

Anhui Provincial Standard of the People's Republic of China, surface water total nitrogen

DB34/T 1427-2011 Cultivation Technical Regulations of Rice Nitrogen and Phosphorus Reduction Control in Chaohu Lake Region

Jilin Provincial Standard of the People's Republic of China, surface water total nitrogen

DB22/T 3511-2023 Technical Regulations for Returning Full Amount of Rice Straw to Soda-Saline-alkali Land and Applying Nitrogen Fertilizer

Standard Association of Australia （SAA）, surface water total nitrogen

AS 2660:1991 Hose and hose assemblies - Air/water - For underground coal mines
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

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

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

Shandong Provincial Standard of the People's Republic of China, surface water total nitrogen

DB37/T 4595-2023 Technical specifications for monitoring planktonic cyanobacteria in surface water

Tianjin Provincial Standard of the People's Republic of China, surface water total nitrogen

DB12/T 1084-2021 Technical Guidelines for Site Demonstration of Surface Water Quality Automatic Monitoring Stations

国家能源局, surface water total nitrogen

NB/T 10351-2019 Procedures for Preparation of Overall Planning and Design Report for Reservoir Seismic Monitoring of Hydropower Projects

Hunan Provincial Standard of the People's Republic of China, surface water total nitrogen

DB43/T 1424-2018 Technical specification for automatic monitoring of heavy metals in surface water