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nitrogen form in water

nitrogen form in water, Total:190 items.

In the international standard classification, nitrogen form in water involves: Fertilizers, Water quality, Farming and forestry, Animal feeding stuffs, Soil quality. Pedology, Organic chemicals, Beverages, General methods of tests and analysis for food products, Meat, meat products and other animal produce, Geology. Meteorology. Hydrology, Agricultural machines, implements and equipment, Vocabularies, Medical sciences and health care facilities in general, Fruits. Vegetables, Fuels, Coals, Air quality, Analytical chemistry, Environmental testing, Fluid storage devices, Petroleum products in general, Construction materials.

RU-GOST R, nitrogen form in water

GOST EN 15604-2013 Fertilizers. Determination of different forms of nitrogen in the same sample: nitric, ammoniacal, cyanamide and urea nitrogen
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 30181.6-1994 Mineral fertilizers. Method for determination of mass fraction of nitrogen in ammonium salts (in ammonium form, using the formaldehyde method)
GOST 30181.3-1994 Mineral fertilizers. Method for determination of mass fraction of nitrogen in fertilizers with nitrate nitrogen
GOST 32527-2013 Mineral nitrogen-containing substances. Determination in air and water

British Standards Institution (BSI), nitrogen form in water

BS DD CEN/TS 15604:2007 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
DD CEN/TS 15604:2007 Fertilizers — Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
BS EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
BS ISO 23695:2023 Water quality. Determination of ammonium nitrogen in water. Small-scale sealed tube method
14/30313910 DC BS ISO 15604. Fertilizers. Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
21/30396472 DC BS ISO 23695. Water quality. Determination of ammonium nitrogen in water. Small-scale sealed tube method
BS DD CEN/TS 15750:2009 Fertilizers - Determination of different forms of nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
BS EN 16039:2011 Water quality. Guidance standard on assessing the hydromorphological features of lakes
BS EN 16503:2014 Water quality. Guidance standard on assessing the hydromorphological features of transitional and coastal waters
BS 7777-4:1993 Flat-bottomed, vertical, cylindrical storage tanks for low temperature service - Specification for the design and construction of single containment tanks for the storage of liquid oxygen, liquid nitrogen and liquid argon
BS EN ISO 11732:2005 Water quality. Determination of ammonium nitrogen. Method by flow analysis (CFA and FIA) and spectrometric detection
BS EN 14614:2020 Water quality - Guidance standard for assessing the hydromorphological features of rivers
BS EN 14614:2005 Water quality - Guidance standard for assessing the hydromorphological features of rivers
BS EN 14614:2004 Water quality - Guidance standard for assessing the hydromorphological features of rivers

German Institute for Standardization, nitrogen form in water

DIN CEN/TS 15604:2008 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen; German version CEN/TS 15604:2007
DIN EN 15604:2009-06 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen; German version EN 15604:2009 / Note: To be replaced by DIN EN ISO 15604 (2019-06).
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 ISO 14255:1998-11 Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant (ISO 14255:1998)
DIN EN 12260:2003 Water quality - Determination of nitrogen - Determination of bound nitrogen (TN<(Index)b>), following oxidation to nitrogen oxides; German version EN 12260:2003
DIN EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen; English version of DIN EN 15604:2009-06
DIN ISO 14255:1998 Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant (ISO 14255:1998)
DIN EN 14614:2022 Water quality - Guidance standard for assessing the hydromorphological features of rivers
DIN EN 14614:2018 Water Quality - Guidance standard for assessing the hydromorphological features of rivers; German and English version prEN 14614:2018
DIN EN 14614:2005 Water quality - Guidance standard for assessing the hydromorphological features of rivers; German version EN 14614:2004
DIN EN 16870:2017 Water quality - Guidance standard on determining the degree of modification of lake hydromorphology
DIN EN ISO 12782-5:2012-09 Soil quality - Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials - Part 5: Extraction of humic substances from aqueous samples (ISO 12782-5:2012); German version EN ISO 12782-5:2012
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

Association Francaise de Normalisation, nitrogen form in water

NF U42-149*NF EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
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 EN 15604:2009 Engrais - Détermination des différentes formes d'azote dans un même échantillon contenant l'azote sous forme nitrique, ammoniacale, uréique et cyanamidique
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 T90-359:2005 Water quality - Guidance standard for assessing the hydromorphological features of rivers.
NF T90-399*NF EN 16039:2011 Water quality - Guidance standard on assessing the hydromorphological features of lakes.
NF T90-712*NF EN 16503:2014 Water quality - Guidance standard on assessing the hydromorphological features of transitional and coastal waters
NF V00-202:1981 Fruits et légumes - Nomenclature morphologique et structurale
FD X30-494:2015 Caractérisation des déchets - Spéciation des éléments dans les déchets
V00-202:1981 Fruits and vegetables. Morphological and structural nomenclature.
NF T90-870*NF EN 16870:2017 Water quality - Guidance standard on determining the degree of modification of lake hydromorphology

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

ASTM D1426-98 Standard Test Methods for Ammonia Nitrogen In Water
ASTM D1426-03 Standard Test Methods for Ammonia Nitrogen In Water
ASTM D1426-15 Standard Test Methods for Ammonia Nitrogen In Water
ASTM D1426-08 Standard Test Methods for Ammonia Nitrogen In 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 D1426-15(2021)e1 Standard Test Methods for Ammonia Nitrogen In Water
ASTM UOP938-00 Total Mercury and Mercury Species in Liquid Hydrocarbons
ASTM UOP938-20 Total Mercury and Mercury Species in Liquid Hydrocarbons
ASTM UOP981-14 Trace Nitrogen in Liquid Hydrocarbons by Oxidative Combustion with Chemiluminescence Detection
ASTM UOP981-11 Trace Nitrogen in Liquid Hydrocarbons by Oxidative Combustion with Chemiluminescence Detection
ASTM D4581-86(2005) Standard Guide for Measurement of Morphologic Characteristics of Surface Water Bodies
ASTM D4581-86(1996)e1 Standard Guide for Measurement of Morphologic Characteristics of Surface Water Bodies
ASTM D4581-86(2001) Standard Guide for Measurement of Morphologic Characteristics of Surface Water Bodies
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 UOP740-79T Volatile Nitrogen Bases, Including Ammonia, in Solids and Aqueous Solutions
ASTM D1608-98 Standard Test Method for Oxides of Nitrogen in Gaseous Combustion Products (Phenol-Disulfonic Acid Procedures)
ASTM D1608-98(2003) Standard Test Method for Oxides of Nitrogen in Gaseous Combustion Products (Phenol-Disulfonic Acid Procedures)
ASTM D1608-16 Standard Test Method for Oxides of Nitrogen in Gaseous Combustion Products (Phenol-Disulfonic Acid Procedures)
ASTM D5475-93(1997) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
ASTM UOP938-10 Total Mercury and Mercury Species in Liquid Hydrocarbons
ASTM D5475-93(2002) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
ASTM UOP481-91 Water in Liquid Hydrocarbons by Coulometry
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

FI-SFS, nitrogen form in water

SFS 3029 E-1976 In the event of any differences in interpretation of this standard the Finnish version shall take precedence over this translation

GOSTR, nitrogen form in water

GOST R ISO 15604-2019 Fertilizers. Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen

International Organization for Standardization (ISO), nitrogen form in water

ISO 23695:2023 Water quality — Determination of ammonium nitrogen in water — Small-scale sealed tube method
ISO 15604:2016 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
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

PL-PKN, nitrogen form in water

PN C04576 ArkusZ02-1973 Water and waste water Tests for nitrogen Determination of ammonium nitrogen by titrimetric method
PN C04576 ArkusZ05-1973 Water and waste water Tests for nitrogen Determination of nitrogen in form of aramonia and ?n form of ammonium ions
PN C04642-04-1991 Water and waste water. Tests of pollutants in atmospheric precipitation. Determination of ammonium nitrogen by colorimetric method
PN C04576 ArkusZ01-1973 Water and waste water Tests for nitrogen Determination of ammonium nitrogen by colorimetric method with Nessler reagent
PN C04576-10-1986 Water and waste water Tests for nitrogen Determination of nitrate nitrogen by potentiometric method with ion selective electrode
PN R75100-1992 Fruits - morphological and structural terminology
PN-EN 14614-2020-12 E Water quality -- Guidance standard for assessing the hydromorphological features of rivers

European Committee for Standardization (CEN), nitrogen form in water

PD CEN/TS 15750:2008 Fertilizers - Determination of different forms of nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
EN 14614:2004 Water Quality - Guidance standard for assessing the hydromorphological features of rivers
EN 16503:2014 Water quality - Guidance standard on assessing the hydromorphological features of transitional and coastal waters
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

Jilin Provincial Standard of the People's Republic of China, nitrogen form in water

DB22/T 2270-2018 Determination of Ammonium Nitrogen and Nitrate Nitrogen in Farmland Soil by Flow Injection Analysis
DB22/T 2270-2015 Determination of Ammonium Nitrogen and Nitrate Nitrogen in Farmland Soil by Flow Injection Analysis

BE-NBN, nitrogen form in water

NBN T 91-255-1976 Water analysis methods - Determination of the ammoniacal and organic nitrogen - (Kjeldahl nitrogen)
NBN T 91-252-1976 Water analysis methods - Determination of the ammoniacal nitro-gen after preliminary distillation
NBN T 91-256-1977 Water analysis methods - Determination of the nitrate nitrogen -Photometric method with chromotropic acid
NBN T 91-254-1976 Water analysis methods - Determination of the ammoniacal nitrogen -Direct photometric methodwith sodium phenate
NBN T 91-251-1976 Water analysis methods — Determination of the ammoniacal nitrogen — Direct photometric method with Nessler reagent

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

T/NAIA 001-2020 Determination of ammoniacal nitrogen in fermented feed Kjeldahl method
T/CPMA 021-2020 Method of on-site detection of ammonia nitrogen in drinking water - Salicylic Acid Method
T/NAIA 004-2020 Determination of Ammonia Nitrogen Concentration in Rumen Fluid Alkaline Sodium Hypochlorite-Phenol Spectrophotometry

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

GB/T 3597-2002 Fertilizer--Determination of nitrate nitrogen content--Nitron gravimetric method
GB/T 3600-2000 Fertilizers-Determination of ammoniacal nitrogen content-Formaldehyde method
GB/T 3598-1983 Fertilizers--Determination of urea nitrogen content--Urease method
GB/T 3595-2000 Fertilizers-Determination of ammoniacal nitrogen content-Titrimetric method after distillation
GB/T 12143.2-1989 Determination method for amino nitrogen content in fruit and vegetable juice beverages--Formol number
GB 12143.2-12143.3-89 Determination method for amino nitrogen content in fruit and vegetable juice beverages-Formol number Determination method for L-ascorbic acid in fruit and vegetable juice beverages-Ethyl ether extract
GB/T 215-1996 Determination of forms of sulfur in coal
GB/T 215-2003 Determination of forms of sulfur in coal
GB/T 10466-1989 Vegetable and fruit--Morphological and structural terminology--Part 1
GB/T 26430-2010 Fruits and vegetables.Morphological and structural terminology

Professional Standard - Agriculture, nitrogen form in water

GB 3597-1983 Determination of nitrate nitrogen content in fertilizers Nitrogen reagent gravimetric method
GB 3598-1983 Determination of Urea Nitrogen Content in Fertilizers Urease Method
GB 3595-1983 Determination of ammonia nitrogen content in fertilizers Titration method after distillation
NY/T 1116-2006 Fertilizers-Determination of nitrate nitrogen content.UItraviolet spectro-photometric method
NY/T 921-2004 Morphological and structural terminology of tropical fruits
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
GB 10466-1989 Morphological and structural terms of vegetables and fruits (1)
SC/T 9444-2023 Determination of ammonia nitrogen in aquaculture water by gas phase molecular absorption spectrometry
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
177药典四部-2020 2001 Other methods of traditional Chinese medicine 2322 Mercury, arsenic element form and its valence determination method
189药典四部-2015 2001 Other methods of traditional Chinese medicine 2322 Mercury and arsenic element speciation and its valence determination method

NL-NEN, nitrogen form in water

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

AENOR, nitrogen form in water

UNE 77306:1999 SOIL QUALITY. DETERMINATION OF NITRATE NITROGEN, AMMONIUM NITROGEN AND TOTAL SOLUBLE NITROGEN IN AIR-DRY SOIL USING CALCIUM CHLORIDE SOLUTION AS EXTRACTANT.
UNE-EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
UNE-EN 16039:2012 Water quality - Guidance standard on assessing the hydromorphological features of lakes
UNE-EN 14614:2005 Water Quality - Guidance standard for assessing the hydromorphological features of rivers
UNE 32009:1958 Solid fuels analysis. Determination of the forms of sulphur in coal.
UNE-EN 16870:2017 Water quality - Guidance standard on determining the degree of modification of lake hydromorphology
UNE-EN 15843:2010 Water quality - Guidance standard on determining the degree of modification of river hydromorphology
UNE-EN 16503:2015 Water quality - Guidance standard on assessing the hydromorphological features of transitional and coastal waters
UNE-EN ISO 11732:2005 Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection (ISO 11732:2005)

Korean Agency for Technology and Standards (KATS), nitrogen form in water

KS I ISO 14255-2009(2019) Soil quality－Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
KS I ISO 11905-2-2008(2013) Water quality－Determination of nitrogen－Part 2：Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection
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

Danish Standards Foundation, nitrogen form in water

DS/EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
DS/EN 14614:2005 Water quality - Guidance standard for assessing the hydromorphological features of rivers
DS/EN 16039:2011 Water quality - Guidance standard on assessing the hydromorphological features of lakes
DS/EN ISO 11732:2005 Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection
DS/EN 15843:2010 Water quality - Guidance standard on determining the degree of modification of river hydromorphology
DS/EN ISO 12782-5:2012 Soil quality - Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials - Part 5: Extraction of humic substances from aqueous samples

Lithuanian Standards Office , nitrogen form in water

LST EN 15604-2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
LST EN 16039-2011 Water quality - Guidance standard on assessing the hydromorphological features of lakes
LST EN 14614-2020 Water quality - Guidance standard for assessing the hydromorphological features of rivers
LST EN 14614-2005 Water Quality - Guidance standard for assessing the hydromorphological features of rivers
LST EN 15843-2010 Water quality - Guidance standard on determining the degree of modification of river hydromorphology
LST EN ISO 11732:2005 Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection (ISO 11732:2005)

Tianjin Provincial Standard of the People's Republic of China, nitrogen form in water

DB12/T 512-2014 Determination method of nitrate nitrogen in soil samples

BR-ABNT, nitrogen form in water

ABNT MB-1146-1979

CEN - European Committee for Standardization, nitrogen form in water

PD CEN/TS 15604:2007 Fertilizers - Determination of different forms of nitrogen in the same sample@ containing nitrogen as nitric@ ammoniacal@ urea and cyanamide nitrogen
PREN 14614-2018 Water Quality - Guidance standard for assessing the hydromorphological features of rivers
EN 15843:2010 Water quality - Guidance standard on determining the degree of modification of river hydromorphology
EN 16870:2017 Water quality - Guidance standard on determining the degree of modification of lake hydromorphology

U.S. Air Force, nitrogen form in water

AIR FORCE A-A-58000-1992 TANK, STORAGE, LIQUID ARGON-NITROGEN-OXYGEN, CRYOGENIC, HORIZONTAL, 3000 AND 6000 GALLON

Universal Oil Products Company (UOP), nitrogen form in water

UOP 938-2010 Total Mercury and Mercury Species in Liquid Hydrocarbons
UOP 981-2014 Trace Nitrogen in Liquid Hydrocarbons by Oxidative Combustion with Chemiluminescence Detection

Taiwan Provincial Standard of the People's Republic of China, nitrogen form in water

CNS 12630-2004 Method of test for fruit and vegetable juices and drinks－Determination of formol nitrogen
CNS 12965-1992 Method of Test for Hazardous Components in Fertilizers:Determination of Biuret Nitrogen Content

TR-TSE, nitrogen form in water

TS 329-1966 DETERM1NATION OF FORMS OF SULPHUR ?N COAL

SE-SIS, nitrogen form in water

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

Guangdong Provincial Standard of the People's Republic of China, nitrogen form in water

DB44/T 317-2006 Determination of the total volatile basic nitrogen in seafood

Professional Standard - Aquaculture, nitrogen form in water

SC/T 3032-2007 Determination of the total volatile basic nitrogen in fishery products

VN-TCVN, nitrogen form in water

TCVN 6643-2000 Soil quality.Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant

Professional Standard - Ocean, nitrogen form in water

HY/T 152-2013 Speciation of trivalent arsenic and pentavalent arsenic in sea water by atomic fluorescence spectroscopy

Professional Standard - Urban Construction, nitrogen form in water

CJ/T 3018.6-1993 Leachate.Determination of ammoniacal nitrogen.Distillation and titration method

National Health Commission of the People's Republic of China, nitrogen form in water

GB 5009.235-2016 Determination of Amino Acid Nitrogen in Food Safety National Standard Food

Professional Standard - Environmental Protection, nitrogen form in water

HJ 537-2009 Water quality.Determination of ammonia nitrogen.Distillation-neutralization titration

CH-SNV, nitrogen form in water

SN EN 14614-2021 Water quality - Guidance standard for assessing the hydromorphological features of rivers

IT-UNI, nitrogen form in water

UNI EN 14614-2020 Water quality - Guidance standard for assessing the hydromorphological features of rivers

Professional Standard - Chemical Industry, nitrogen form in water

HG/T 3519-2012 Industrial circulating cooling water.Determination of benzotriazole
HG/T 3519-2023 Determination of benzotriazole in industrial circulating cooling water
HG/T 3519-2003 Industrial circulating cooling water-Determination of Benzotriazole
HG 5-1519-1985 Determination method of benzotriazole in industrial circulating cooling water

Japanese Industrial Standards Committee (JISC), nitrogen form in 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

Indonesia Standards, nitrogen form in water

SNI 19-6964.7-2003 Seawater quality - Part 7: Test methods of nitrates (NO3-N) with cadmium reduction by spectrophotometry

Shanxi Provincial Standard of the People's Republic of China, nitrogen form in water

DB14/T 1428-2017 Determination methods of various forms of sulfur in coke

国家市场监督管理总局、中国国家标准化管理委员会, nitrogen form in water

GB/T 39769-2021 Determination of forms of sulfur in coke

Professional Standard - Petrochemical Industry, nitrogen form in water

SH/T 0657-1998 Standard test method for trace nitrogen in liquid petroleum hydrocarbons by syringe/inlet oxidative combustion and chemiluminescence detection
SH/T 0657-2007 Standard test method for trace nitrogen in liquid petroleum hydrocarbons by syringe/inlet oxidative combusaonand and chemiluminescence detection

Fujian Provincial Standard of the People's Republic of China, nitrogen form in water

DB35/T 2006-2021 Chemical conversion method for determination of nitrate nitrogen isotope in water

ESDU - Engineering Sciences Data Unit, nitrogen form in water

ESDU 89027-1989 Steady state temperatures and thermal stresses in a spherical or cylindrical laminated shell.

PK-PSQCA, nitrogen form in water

PS 176-1962 TEST EVALUATION TWIST IN YARN IN PACAKGE FORM

Professional Standard - Aviation, nitrogen form in water

HB 5297.17-1984 Determination of Nitrogen in Titanium and Titanium Alloys by Steam Distillation

Yunnan Provincial Standard of the People's Republic of China, nitrogen form in water

DB53/T 624-2014 Determination of Nitrate Nitrogen and Nitrite Nitrogen in Coking Wastewater by Dairyler's Alloy Reduction-Neutralization Titration

API - American Petroleum Institute, nitrogen form in water

API 4217-1974 FOUNDATION FOR MODELING NOx AND SMOKE FORMATION IN DIESEL FLAMES

ES-UNE, nitrogen form in water

UNE-EN ISO 12782-5:2012 Soil quality - Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials - Part 5: Extraction of humic substances from aqueous samples (ISO 12782-5:2012) (Endorsed by AENOR in July of 2012.)

RO-ASRO, nitrogen form in water

STAS 12200-1985 SLUDGES RESULTED FROM= SURFACE WATERS TREATMENT AND WASTE WATERS PURIFI- CATION Nitrogen content determination

Professional Standard - Building Materials, nitrogen form in water

JC/T 454-1992 Granulated calcium enriched liquid slag intended to be used in cement

国家建筑材料工业局, nitrogen form in water

JC 454-1992 Granulated calcium-enhancing liquid slag used in cement

ZA-SANS, nitrogen form in water

SANS 13395:1996 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection