Ammonia-nitrogen ratio

Ammonia-nitrogen ratio, Total:220 items.

The international standard classification for "Ammonia-nitrogen ratio" includes: Spices and condiments. Food additives , Sugar. Sugar products. Starch , Textiles in general , Fertilizers , Organic chemicals .

The Chinese standard classification for "Ammonia-nitrogen ratio" includes: Flavoring materials , Sugar refining and sugar products in general , Basic standards and general methods , Basic standards and general methods on chemical fertilizers , Photographic-grade chemicals , Analysis methods for exhaust emission pollutants , Water supply and draining instrument and equipment , Organic chemicals in general .

Professional Standard - Business

SB/T 10318-1999 Analysis of ammoniacal nitrogen

Professional Standard - Chemical Industry

HGB 3517-1962 Neutral red (2-methyl-3-amino-6-dimethylaminodiazaanthene hydrochloride)
HGB 3470-1962 p-aminoazobenzene
HGB 3085-1959 Dimethyl Yellow (Dimethylaminoazobenzene)

Group Standards of the People's Republic of China

T/SCSX 0104-2020 "Ammonia nitrogen remover for water treatment agent" group standard
T/ACEF 145-2024 Technical specification for anammox treatment of high strength ammonia nitrogen wastewater
T/NAIA 0169-2022 Water Quality Determination of Ammonia Nitrogen by Ion Chromatography
T/CIEP 0036-2023 Technical specifications for chemical treatment of high ammonia nitrogen wastewater
T/NAIA 001-2020 Determination of ammoniacal nitrogen in fermented feed Kjeldahl method
T/CIMA 0041-2021 Ammonia Nitrogen Rapid Tester

Professional Standard - Agriculture

ZB X 66038-1987 Amino nitrogen determination method
JAP-031 Azaphenanthridine detection method

Taiwan Provincial Standard of the People's Republic of China

CNS 3942-1976 Methods for Determination of Ammonia Nitrogen in Polluted and Waste Water

Professional Standard - Urban Construction

CJ/T 75-1999 Municipal sewage.Determination of nitrogen(ammonia)

Professional Standard - Light Industry

QB/T 5015-2016 The determination of a- amino nitrogen in sugar beet

未注明发布机构

ASTM RR-D20-1239 2003 D6979-Test Method for Polyurethane Raw Materials: Determination of Basicity in Polyols, Expressed as Percent Nitrogen

工业和信息化部

HG/T 5251-2017 Textile dyeing and finishing auxiliaries- Determination of ammonia nitrogen

National Metrological Verification Regulations of the People's Republic of China

JJG 631-2013 Ammonia-Nitrogen Automatic Analyzers

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

GB/T 23344-2009 Textiles - Determination of 4-aminoazobenzene
GB/T 23344-2009(英文版) Textiles-Determination of 4 aminoazobenzene
GB/T 3600-2000 Fertilizers;Determination of ammoniacal nitrogen content;Formaldehyde method
GB/T 41965-2022 Photography—Processing waste—Determination of total amino nitrogen (microdiffusion Kjeldahl method)

National Metrological Technical Specifications of the People's Republic of China

JJF 1424-2013 Program of Pattern Evaluation of Ammonia-Nitrogen Automatic Analyzers

Professional Standard - Environmental Protection

HJ 634-2012 Soil-Determination of ammonium,nitrite and nitrate by extraction with potassium chloride solution -spectrophotometric methods
HJ/T 64.3-2001 Stationary source emission -- Determination of cadmium p-Azobenzenediazoaminazobenzene sulfonic acid spectrophotometric method
HJ 537-2009 Water quality-Determination of ammonia nitrogen-Distillation-neutralization titration
HJ/T 101-2003 The technical requirement for water quality automatic analyzer of ammonia

Hubei Provincial Standard of the People's Republic of China

DB42/T 2120-2023 Determination of ammonia nitrogen, nitrite nitrogen and nitrate nitrogen in soil by gas phase molecular absorption spectrometry

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

GB/T 34532-2017 Coking wastewater - Determination of ammonia nitrogen content - Formaldehyde method

SCC

AENOR UNE 77028:2002 Water quality. Determination of ammoniacal nitrogen. Method by distillation and titration or colorimetry.
DANSK DS/EN 15475:2009 Fertilizers - Determination of ammoniacal nitrogen
NS-EN 15475:2009 Fertilizers — Determination of ammoniacal nitrogen
UNE-CEN/TS 15475:2007 EX Fertilizers - Determination of ammoniacal nitrogen
DANSK DS/ISO 25475:2020 Fertilizers – Determination of ammoniacal nitrogen
UNE-CEN/TS 15476:2007 EX Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
NS-EN 15476:2009 Fertilizers — Determination of nitric and ammoniacal nitrogen according to Devarda
SN-CEN/TS 15475:2006 Fertilizers — Determination of ammoniacal nitrogen
NS 4746:1975 Water analysis - Determination of ammonia-nitrogen
AENOR UNE-EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
DANSK DS/EN 15559:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
UNE-CEN/TS 15559:2007 EX Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
SN-CEN/TS 15476:2006 Fertilizers — Determination of nitric and ammoniacal nitrogen according to Devarda
DANSK DS/EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
SN-CEN/TS 15559:2007 Fertilizers — Determination of nitric and ammoniacal nitrogen according to Arnd
AENOR UNE-EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
NS-EN 15559:2009 Fertilizers — Determination of nitric and ammoniacal nitrogen according to Arnd
UNE-CEN/TS 15558:2007 EX Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
DANSK DS/EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
NS-EN 15558:2009 Fertilizers — Determination of nitric and ammoniacal nitrogen according to Ulsch
NS-EN 15750:2009 Fertilizers — Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
SN-CEN/TS 15750:2008 Fertilizers — Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
DANSK DS/EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
SN-CEN/TS 15558:2007 Fertilizers — Determination of nitric and ammoniacal nitrogen according to Ulsch
AENOR UNE-EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
UNE-CEN/TS 15604:2008 EX Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
BS DD CEN/TS 15750:2008 Fertilizers. Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
SN-CEN/TS 15604:2007 Fertilizers — Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
DANSK DS/ISO 15604:2020 Fertilizers – Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
DANSK DS/EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
NS-EN 15604:2009 Fertilizers — Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
08/30179332 DC BS EN 15604. Fertilizers. Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
08/30179319 DC BS EN 15559. Fertilizers. Determination of nitric and ammoniacal nitrogen according to Arnd
AS 1871.10:1976 List of methods for examination of waters Nitrogen (ammonia)
08/30179304 DC BS EN 15476. Fertilizers. Determination of nitric and ammoniacal nitrogen according to Devarda
AS 1871.11:1976 List of methods for examination of waters Nitrogen (total Kjeldahl incl. ammoniacal)
BS DD CEN/TS 15750:2006 Fertilizers. Determination of different forms of nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
DIN EN 15750 E:2009 Draft Document - Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version prEN 15750:2009
08/30179316 DC BS EN 15558. Fertilizers. Determination of nitric and ammoniacal nitrogen according to Ulsch
08/30179301 DC BS EN 15475. Fertilizers. Determination of ammoniacal nitrogen
DIN EN ISO 25475 E:2019 Draft Document - Fertilizers - Determination of ammoniacal nitrogen (ISO 25475:2016); German and English version prEN ISO 25475:2019
DIN EN ISO 15604 E:2019 Draft Document - Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen (ISO 15604:2016); German and English version prEN ISO 15604:2019
AENOR UNE-EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
SN-CEN/TS 15560:2007 Fertilizers — Determination of total nitrogen in calcium cyanamide nitrate free
UNE-CEN/TS 15560:2007 EX Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
NS-EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
DANSK DS/EN 15560:2009 Fertilizers – Determination of total nitrogen in calcium cyanamide nitrate free

GOSTR

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

RU-GOST R

GOST EN 15604-2013 Fertilizers. Determination of different forms of nitrogen in the same sample: nitric, ammoniacal, cyanamide and urea nitrogen
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 EN 15475-2013 Fertilizers. Determination of ammoniacal nitrogen
GOST EN 15476-2013 Fertilizers. Determination of nitric and ammoniacal nitrogen according to Devarda
GOST EN 15559-2013 Fertilizers. Determination of nitric and ammoniacal nitrogen according to Arnd
GOST EN 15558-2013 Fertilizers. Determination of nitric and ammoniacal nitrogen according to Ulsch selon
GOST EN 15562-2013 Fertilizers. Determination of cyanamide nitrogen
GOST 26716-1985 Organic fertilizers. Methods for determination of ammonium 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 R 55479-2013 Meat and meat products. Method for determination of amino-ammonia nitrogen

Association Francaise de Normalisation

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 U42-144*NF EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
NF U42-145*NF EN 15559:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
NF EN 15475:2009 Fertilizers - Determination of ammoniacal nitrogen
NF U42-147*NF EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrate
NF U42-121*NF EN 15475:2009 Fertilizers - Determination of ammoniacal nitrogen
NF U42-142*NF EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
NF U42-148*NF EN 15562:2009 Fertilizers - Determination of cyanamide nitrogen.
NF T90-015:1975 TESTING WATER-DETERMINATION OF NITROGEN (AMMONIA)
NF U42-503*NF EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
NF EN 15750:2010 Fertilizers - Determination of the total nitrogen content of fertilizers containing nitrogen only in nitric, ammoniacal and urea form, using two different methods
NF EN ISO 120:1998 Plastics - Molded parts based on phenoplasts - Determination of free ammonia and ammonia compounds. Colorimetric comparison method
NF EN 15561:2009 Fertilizers - Determination of total nitrogen in nitrated calcium cyanamide

British Standards Institution (BSI)

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
BS EN 15604:2009 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 DD CEN/TS 15475:2006 Fertilizers - Determination of ammoniacal nitrogen
DD CEN/TS 15559:2007 Fertilizers. Determination of nitric and ammoniacal nitrogen according to Arnd
BS DD CEN/TS 15558:2007 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
BS DD CEN/TS 15559:2007 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
BS EN 15475:2009 Fertilizers — Determination of ammoniacal nitrogen
BS DD CEN/TS 15562:2007 Fertilizers - Determination of cyanamide nitrogen
BS EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
BS EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
BS ISO 25761:2008 Plastics - Polyols for use in the production of polyurethanes - Determination of basicity (total amine value), expressed as percent nitrogen
14/30313907 DC BS ISO 25475. Fertilizers. Determination of ammoniacal nitrogen
BS ISO 25761:2014 Plastics. Polyols for use in the production of polyurethanes. Determination of basicity (total amine value), expressed as percent nitrogen
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
BS DD CEN/TS 15476:2006 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
BS EN 15750:2010 Fertilizers. Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
BS EN 15559:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
BS EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
BS EN ISO 9702:1997 Plastics - Amine epoxide hardeners - Determination of primary, secondary and tertiary amine group nitrogen content
BS 5551-4.1.2:1982 Fertilizers. Chemical analysis. Determination of nitrogen. Determination of ammoniacal nitrogen, titrimetric method after distillation
BS ISO 6851:2001 Photography. Processing waste. Determination of total amino nitrogen (microdiffusion Kjeldahl method)

Danish Standards Foundation

DS/EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
DS/EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
DS/EN 15475:2009 Fertilizers - Determination of ammoniacal nitrogen
DS/EN 15559:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
DS 224:1975 Water analysis. Determination of ammonia-nitrogen
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 241:1988 Water quality. Ammonium-nitrogen. Distillation and titration method
DS/EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods

AENOR

UNE-EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
UNE-EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
UNE-EN 15475:2009 Fertilizers - Determination of ammoniacal nitrogen
UNE-EN 15559:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
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 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods

Lithuanian Standards Office

LST EN 15476-2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
LST EN 15558-2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
LST EN 15475-2009 Fertilizers - Determination of ammoniacal nitrogen
LST EN 15559-2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
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 15750-2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods

CEN - European Committee for Standardization

PD CEN/TS 15476:2006 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
PD CEN/TS 15558:2007 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
PD CEN/TS 15475:2006 Fertilizers - Determination of ammoniacal nitrogen
PD CEN/TS 15559:2007 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
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

German Institute for Standardization

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 15475:2009-04 Fertilizers - Determination of ammoniacal nitrogen; German version EN 15475:2009 / Note: To be replaced by DIN EN ISO 25475 (2019-06).
DIN EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch; English version of DIN EN 15558:2009-06
DIN EN 15559:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd; English version of DIN EN 15559:2009-06
DIN EN 15559:2009-06 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd; German version EN 15559:2009
DIN EN 15475:2009 Fertilizers - Determination of ammoniacal nitrogen; English version of DIN EN 15475:2009-04
DIN EN 15476:2009-04 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda; German version EN 15476:2009
DIN CEN/TS 15562:2007 Fertilizers - Determination of cyanamide nitrogen; German version CEN/TS 15562:2007
DIN CEN/TS 15558:2007 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch; German version CEN/TS 15558:2007
DIN EN 15750:2010-02 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version EN 15750:2009
DIN EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda; English version of DIN EN 15476:2009-04
DIN EN 15558:2009-06 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch; German version EN 15558:2009
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 15559:2007 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd; German version CEN/TS 15559:2007
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 EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version EN 15750:2009
DIN 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

RO-ASRO

SR 184-25-1998 Ethyl alcohol. Determination of ammonia and azotic bases nitrogen content
STAS 8683-1970 SURFACE AND WASTE WATERS Determination of ainm nia nitrogen

GSO

BH GSO ISO 25475:2022 Fertilizers — Determination of ammoniacal nitrogen
GSO ISO 25475:2021 Fertilizers — Determination of ammoniacal nitrogen
GSO ISO 25761:2013 Plastics - Polyols for use in the production of polyurethanes - Determination of basicity (total amine value), expressed as percent nitrogen
OS GSO ISO 25761:2013 Plastics - Polyols for use in the production of polyurethanes - Determination of basicity (total amine value), expressed as percent nitrogen
BH GSO ISO 25761:2016 Plastics - Polyols for use in the production of polyurethanes - Determination of basicity (total amine value), expressed as percent nitrogen
GSO ISO 120:2015 Plastics -- Phenol-formaldehyde mouldings -- Determination of free ammonia and ammonium compounds -- Colorimetric comparison method
GSO ISO 6851:2015 Photography -- Processing waste -- Determination of total amino nitrogen (microdiffusion Kjeldahl method)

European Committee for Standardization (CEN)

EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
EN 15475:2009 Fertilizers - Determination of ammoniacal nitrogen
EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
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 15559:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd

International Organization for Standardization (ISO)

ISO 25475:2016 Fertilizers - Determination of ammoniacal nitrogen
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
ISO 15604:2016 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen

BE-NBN

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

European Committee for Electrotechnical Standardization（CENELEC）

EN 61400-25-1:2007 Fertilizers - Determination of cyanamide nitrogen
EN 61400-25-1:2017 Wind energy generation systems - Part 25-1: Communications for monitoring and control of wind power plants - Overall description of principles and models

IN-BIS

IS 7661-1975 Specification for 4-aminoazobenzene

PH-BPS

PTS 86-1970 Method of Test for the Determination of Armoniacal Nitrogen

American Society for Testing and Materials (ASTM)

ASTM D1426-98 Standard Test Methods for Ammonia Nitrogen In Water
ASTM D6979-13 Standard Test Method for Polyurethane Raw Materials: Determination of Basicity in Polyols, Expressed as Percent Nitrogen
ASTM D1426-15(2021)e1 Standard Test Methods for Ammonia Nitrogen In Water
ASTM D6979-24 Standard Test Method for Polyurethane Raw Materials: Determination of Basicity in Polyols, Expressed as Percent Nitrogen
ASTM D1426-03 Standard Test Methods for Ammonia Nitrogen In Water
ASTM D6979-18 Standard Test Method for Polyurethane Raw Materials: Determination of Basicity in Polyols, Expressed as Percent Nitrogen
ASTM D1426-08 Standard Test Methods for Ammonia Nitrogen In Water
ASTM D1426-15 Standard Test Methods for Ammonia Nitrogen In Water

Military Standards (MIL-STD)

DOD A-A-53305 A-1988 CARBAMAZEPINE TABLETS, USP [Use In Lieu Of: DOD A-A-0053305]

Korean Agency for Technology and Standards (KATS)

KS I 2101-2010 Nitrogen monoxide(standard reference gas)
KS M 8373-2014 4-Amino antipyrine (Reagent)
KS M 1011-1994 Nitrogen monoxide(standard reference gas)
KS M 8373-2014(2019) 4-Amino antipyrine (Reagent)
KS M 8373-2006 4-Amino antipyrine
KS M 8373-2019 4-Amino antipyrine (Reagent)
KS M ISO 6851-2002(2017) Photography－Processing waste－Determination of total amino nitrogen－Microdiffusion Kjeldahl method
KS M ISO 6851:2002 Photography-Processing waste-Determination of total amino nitrogen-Microdiffusion Kjeldahl method
KS M ISO 6851-2022 Photography－Processing waste－Determination of total amino nitrogen－Microdiffusion Kjeldahl method
KS K ISO 2913:2018 Wool — Colorimetric determination of cystine plus cysteine in hydrolysates
KS M ISO 9702:2002 Plastics－Amine epoxide hardners－Determination of primary, secondary and tertiary amine group nitrogen content

VN-TCVN

TCVN 3706-1990 Aquatic products.Method for the determination of nitrogen ammonia content
TCVN 3707-1990 Aquatic products.Method for the determination of amine ammonia nitrogen content
TCVN 3708-1990 Aquatic products.Method for the determination of nitrogen amino acid content

Japanese Industrial Standards Committee (JISC)

JIS K 8048:2021 4 -- Aminoantipyrine (Reagent)

YU-JUS

JUS H.B8.285-1983 Fertilizers. Determination of content amoniac-nitrogen. Volumetric method

CZ-CSN

CSN 65 4835-1983 Minerál fertilizers. Determination of ammoniacal nitrogen content by distillating method

BR-ABNT

ABNT MB-1146-1979 Magnesium oxide method to detect ammonia nitrogen in fertilizers

KR-KS

KS K ISO 2913-2018 Wool — Colorimetric determination of cystine plus cysteine in hydrolysates

PL-PKN

PN C04576 ArkusZ01-1973 Water and waste water Tests for nitrogen Determination of ammonium nitrogen by colorimetric method with Nessler reagent

Society of Automotive Engineers (SAE)

SAE AMS2759/6D-2024 Gaseous Nitriding of Steel Parts, Controlled by Ammonia Dissociation