Ammonia nitrogen measurement principle

Ammonia nitrogen measurement principle, Total:200 items.

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

The Chinese standard classification for "Ammonia nitrogen measurement principle" 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 , Organic chemicals in general .

Professional Standard - Business

SB/T 10318-1999 Analysis of ammoniacal nitrogen

Professional Standard - Agriculture

ZB X 66038-1987 Amino nitrogen determination method
GB 3595-1983 Fertilizers-Determination of ammoniacal
JAP-031 Azaphenanthridine detection method

Group Standards of the People's Republic of China

T/ACEF 145-2024 Technical specification for anammox treatment of high strength ammonia nitrogen wastewater
T/SDFA 002.4-2023 Fermented feed ingredients Part 4: Determination of amino acid nitrogen
T/CIMA 0041-2021 Ammonia Nitrogen Rapid Tester
T/NAIA 001-2020 Determination of ammoniacal nitrogen in fermented feed Kjeldahl method
T/NAIA 0169-2022 Water Quality Determination of Ammonia Nitrogen by Ion Chromatography

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

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 3595-2000 Fertilizers;Determination of ammoniacal nitrogen content;Titrimetric method after distillation
GB/T 23344-2009(英文版) Textiles-Determination of 4 aminoazobenzene
GB/T 41965-2022 Photography—Processing waste—Determination of total amino nitrogen (microdiffusion Kjeldahl method)
GB/T 23344-2009 Textiles - Determination of 4-aminoazobenzene
GB/T 3600-2000 Fertilizers;Determination of ammoniacal nitrogen content;Formaldehyde method

Professional Standard - Environmental Protection

HJ 537-2009 Water quality-Determination of ammonia nitrogen-Distillation-neutralization titration
HJ/T 64.3-2001 Stationary source emission -- Determination of cadmium p-Azobenzenediazoaminazobenzene sulfonic acid spectrophotometric method
HJ 536-2009 Water quality-Determination of ammonia nitrogen-Salicylic acid spectrophotometry

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

British Standards Institution (BSI)

BS DD CEN/TS 15476:2006 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
BS DD CEN/TS 15475:2006 Fertilizers - Determination of ammoniacal nitrogen
BS ISO 6851:2001 Photography. Processing waste. Determination of total amino nitrogen (microdiffusion Kjeldahl method)
BS ISO 6853:2001 Photography. Processing waste. Determination of ammoniacal nitrogen (microdiffusion method)
BS EN 15475:2009 Fertilizers — Determination of ammoniacal nitrogen
DD CEN/TS 15559:2007 Fertilizers. Determination of nitric and ammoniacal nitrogen according to Arnd
BS DD CEN/TS 15562:2007 Fertilizers - Determination of cyanamide nitrogen
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 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
14/30313907 DC BS ISO 25475. Fertilizers. Determination of ammoniacal 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 5551-4.1.2:1982 Fertilizers. Chemical analysis. Determination of nitrogen. Determination of ammoniacal nitrogen, titrimetric method after distillation
BS 5551-4.1.4:1984 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide (titrimetric method)
BS EN 15559:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
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 EN ISO 9702:1997 Plastics - Amine epoxide hardeners - Determination of primary, secondary and tertiary amine group nitrogen content
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 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 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 15475-2009 Fertilizers - Determination of ammoniacal nitrogen
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 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 15475:2006 Fertilizers - Determination of ammoniacal nitrogen
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 15559:2007 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd

SCC

DANSK DS/EN 15475:2009 Fertilizers - Determination of ammoniacal nitrogen
NS-EN 15475:2009 Fertilizers — Determination of ammoniacal nitrogen
DANSK DS/ISO 25475:2020 Fertilizers – Determination of ammoniacal nitrogen
NS 4746:1975 Water analysis - Determination of ammonia-nitrogen
SN-CEN/TS 15475:2006 Fertilizers — Determination of ammoniacal nitrogen
NS-EN 15476:2009 Fertilizers — Determination of nitric and ammoniacal nitrogen according to Devarda
AENOR UNE-EN 15476:2009 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
DANSK DS/EN 15559:2009 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
NS-EN 15559:2009 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 15558:2009 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
SN-CEN/TS 15558:2007 Fertilizers — Determination of nitric and ammoniacal nitrogen according to Ulsch
08/30179301 DC BS EN 15475. Fertilizers. Determination of ammoniacal nitrogen
08/30179304 DC BS EN 15476. Fertilizers. Determination of nitric and ammoniacal nitrogen according to Devarda
08/30179319 DC BS EN 15559. Fertilizers. Determination of nitric and ammoniacal nitrogen according to Arnd
DIN EN ISO 25475 E:2019 Draft Document - Fertilizers - Determination of ammoniacal nitrogen (ISO 25475:2016); German and English version prEN ISO 25475:2019
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
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
08/30179316 DC BS EN 15558. Fertilizers. Determination of nitric and ammoniacal nitrogen according to Ulsch
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
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
BS ISO 8225:1995 Photography. Ammonia-processed diazo photographic film. Specifications for stability
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
NS-EN 15604:2009 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
SN-CEN/TS 15560:2007 Fertilizers — Determination of total nitrogen in calcium cyanamide nitrate free
DANSK DS/EN ISO 8968-1:2014 Milk and milk products - Determination of nitrogen content - Part 1: Kjeldahl principle and crude protein calculation
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
AENOR UNE-EN 15560:2009 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
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

German Institute for Standardization

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 15475:2009 Fertilizers - Determination of ammoniacal nitrogen; English version of DIN EN 15475:2009-04
DIN CEN/TS 15562:2007 Fertilizers - Determination of cyanamide nitrogen; German version CEN/TS 15562:2007
DIN EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch; English version of DIN EN 15558:2009-06
DIN EN 15559:2009-06 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd; German version EN 15559:2009
DIN EN 15476:2009-04 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda; German version EN 15476:2009
DIN EN 15559:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd; English version of DIN EN 15559:2009-06
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 CEN/TS 15558:2007 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch; German version CEN/TS 15558:2007
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 CEN/TS 15559:2007 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd; German version CEN/TS 15559:2007
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 ISO 8968-1:2014-06 Milk and milk products - Determination of nitrogen content - Part 1: Kjeldahl principle and crude protein calculation (ISO 8968-1:2014); German version EN ISO 8968-1:2014
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

Danish Standards Foundation

DS/EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
DS/EN 15475:2009 Fertilizers - Determination of ammoniacal nitrogen
DS/EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
DS 224:1975 Water analysis. Determination of ammonia-nitrogen
DS/EN 15559:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
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

Spanish Association for Standardization (UNE)

UNE-EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
UNE-EN 15475:2009 Fertilizers - Determination of ammoniacal nitrogen
UNE-CEN/TS 15475:2007 EX Fertilizers - Determination of ammoniacal nitrogen
UNE-EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
UNE-CEN/TS 15476:2007 EX Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
UNE-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
UNE-CEN/TS 15558:2007 EX Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
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-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
UNE-CEN/TS 15560:2007 EX Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
UNE-EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods

GSO

BH GSO ISO 25475:2022 Fertilizers — Determination of ammoniacal nitrogen
GSO ISO 25475:2021 Fertilizers — Determination of ammoniacal nitrogen
GSO ISO 7408:2009 Fertilizers - Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide - Titrimetric method
GSO ISO 6851:2015 Photography -- Processing waste -- Determination of total amino nitrogen (microdiffusion Kjeldahl method)
OS GSO ISO 7408:2009 Fertilizers - Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide - Titrimetric method
OS GSO ISO 8968-1:2014 Milk and milk products -- Determination of nitrogen content -- Part 1: Kjeldahl principle and crude protein calculation
GSO ISO 18905:2013 Imaging materials -- Ammonia-processed diazo photographic film -- Specifications for stability
BH GSO ISO 18905:2016 Imaging materials -- Ammonia-processed diazo photographic film -- Specifications for stability

Association Francaise de Normalisation

NF EN 15475:2009 Fertilizers - Determination of ammoniacal nitrogen
NF U42-121*NF EN 15475:2009 Fertilizers - Determination of ammoniacal 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 U42-148*NF EN 15562:2009 Fertilizers - Determination of cyanamide nitrogen.
NF U42-147*NF EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrate
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 U42-142*NF EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
NF T90-015:1975 TESTING WATER-DETERMINATION OF NITROGEN (AMMONIA)
NF V59-202:1988 Collagenes. Determination of the nitrogen content.
NF EN 15561:2009 Fertilizers - Determination of total nitrogen in nitrated calcium cyanamide
NF EN 14671:2006 Characterization of sludge - Pretreatment for the determination of ammoniacal nitrogen extractable with a 2 mol/l potassium chloride solution

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
SR ISO 5314:1981 Fertilizers. Determination of ammoniaca! nitrogen content Titrimetric method after distillation

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

International Organization for Standardization (ISO)

ISO 25475:2016 Fertilizers - Determination of ammoniacal nitrogen
ISO 7408:1983 Fertilizers; Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide; Titrimetric method
ISO 5314:1981 Fertilizers; Determination of ammoniacal nitrogen content; Titrimetric method after distillation
ISO 8968-1:2014 | IDF 20-1:2014 Milk and milk products — Determination of nitrogen content — Part 1: Kjeldahl principle and crude protein calculation
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
NBN T 03-055-1979 Ammonium nitrate for industrial use - Determination of ammoniacal nitrogen content - Titrimetric method after distillation

European Committee for Standardization (CEN)

EN 15475:2009 Fertilizers - Determination of ammoniacal nitrogen
EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
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 15559:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
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

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

Korean Agency for Technology and Standards (KATS)

KS M ISO 6851-2002(2022) Photography－Processing waste－Determination of total amino nitrogen－Microdiffusion Kjeldahl method
KS M ISO 6851-2002(2017) Photography－Processing waste－Determination of total amino nitrogen－Microdiffusion Kjeldahl method
KS M ISO 5314-2007(2012) Fertilizers－Determination of ammoniacal nitrogen content－Titrimetric method after distillation
KS M ISO 5314:2007 Fertilizers-Determination of ammoniacal nitrogen content-Titrimetric method after distillation
KS M ISO 5314:2013 Fertilizers－Determination of ammoniacal nitrogen content－Titrimetric method after distillation
KS M ISO 5314-2013 Fertilizers－Determination of ammoniacal nitrogen content－Titrimetric method after distillation
KS M ISO 6851-2022 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 7408-2007(2012) Fertilizers－Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide－Titrimetric method

PH-BPS

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

Standard Association of Australia （SAA）

AS 1871.11:1976 List of methods for examination of waters Nitrogen (total Kjeldahl incl. ammoniacal)
AS ISO 8968.1:2021 Milk and milk products — Determination of nitrogen content, Part 1: Kjeldahl principle and crude protein calculation
AS 2300.1.2.1:1988 Methods of chemical and physical testing for the dairying industry, Method 1.2.1: General methods and principles - Determination of nitrogen - Reference Kjeldahl method

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

YU-JUS

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

CZ-CSN

CSN ISO 7408:1993 Fertizers - Determination of ammoniacal nitogen content in the presence of other substances which release ammonia when treated with sodium hydroxide - Titrimetric method
CSN 65 4835-1983 Minerál fertilizers. Determination of ammoniacal nitrogen content by distillating method

American Society for Testing and Materials (ASTM)

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

International Dairy Federation (IDF)

IDF 20-1-2014 Milk and milk products - Determination of nitrogen content - Part 1: Kjeldahl principle and crude protein calculation