Total nitrogen analysis method

Total nitrogen analysis method, Total:194 items.

The international standard classification for "Total nitrogen analysis method" includes: Abrasives , Advanced ceramics , Cadmium, cobalt and their alloys , Ferroalloys , Ferrous metals , Refractories , Other non-ferrous metals and their alloys , Salts , Chemical analysis , Metalliferous minerals , Welding consumables , Textiles in general , Flow in open channels , Aluminium and aluminium alloys , Titanium and titanium alloys , Oxides , Lead, zinc, tin and their alloys , Copper and copper alloys , Chemical analysis of metals .

The Chinese standard classification for "Total nitrogen analysis method" includes: Grinding material and apparatus , Special ceramics , Rare metals and their alloys analysis method , Steel and iron alloy analysis method , Metallochemistry analysis method in general , Heavy metals and their alloys analysis method , Special refractory , Light metals and their alloys analysis method , Semimetal and semiconductor material analysis method , Basic standards and general methods for water treatment agent , Iron ore , Heavy metals and their alloys , Rare light metals and their alloys , Rare refractory metals and their compounds , Petroleum geology exploration , Fireproof material in general , Precious metals and its alloy analysis method , Basic standards and general methods on chemical fertilizers , Chemical Measurement .

Military Standard of the People's Republic of China-General Armament Department

GJB 8682.11-2015 Methods of chemical analysis of pyrotechnics Part 11: Determination of barium nitrate content and nitrogen determination method
GJB 507-1988 Boron nitride chemical analysis method
GJB 770.308-1990 Test methods for gunpowder analysis Determination of nitrogen content of nitrocellulose Ferrous iron-titanium chloride method
GJB 770.303-1989 Test methods for gunpowder analysis: Determination of nitrogen content of nitrocellulose. Five-tube nitrogen meter method

Professional Standard - Machinery

JB/T 7994-1999 Chemical analysis methods of cubic boron nitride
JB/T 7994-2012 Superabrasive — Chemical analysis method for cubic boran nitricle

Professional Standard - Building Materials

JC/T 2342-2015 Method for the quantitative phase analysis of silicon nitride

Taiwan Provincial Standard of the People's Republic of China

CNS 188-1971 Method of Analysis for Calcium Cyanamide
CNS 3572-1973 Chemical Analysis of Natural Rubber (Nitrogen)
CNS 12786-1990 Method of Chemical Analysis for Silicon Nitride Powders
CNS 10509-1983 Methods of Chemical Analysis for Nitrogen in Ferrochromium

Group Standards of the People's Republic of China

T/HNNMIA 63-2023 Chemical analysis methods of amidoxime resins-Determination of nitrogen content-Elemental analysis

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

GB/T 6987.4-2001 Aluminium and aluminium alloys-Determination of copper content-Orthopenanthroline photometric method
GB/T 14849.1-1993 Silicon metal－Determination of iron content－1,10-Phenanthroline spectrophotometric method
GB/T 7315.3-1987 Methods for chamical analysis of vanadium pentixide--The ortho-phenanthroline spectrophotometric method forthe determination of iron content
GB/T 8654.1-1988 Methods for chemical analysis of manganese metal--The ortho-phenanthroline photometric method for the determination of iron content
GB/T 3260.2-2013 Methods for Chemical Analysis of Tin - Part 2: Determination of Iron Content - 1,10-Phenanthroline Photometric Method
GB/T 4375.4-1984 Methods for chemical analysis of gallium--The 4, 7-diphenyl-1, 10-phenanthroline photometric method for the determination of iron content
GB/T 223.37-1989 Methods for Chemical Analysis of Iron, Steel and Alloy - the Indophenol Blue Photometric Method for the Determination of Nitrogen Content after Distillation Separation
GB 223.37-1989 Methods for chemical analysis of iron,steel and alloy The indophenol blue photometric methods for the determination of nitrogen content after distillation seperation
GB/T 8156.7-1987 Methods for chemical analysis of aluminium fluoride for industrial use--The 1, 10-phenanthroline photometric method for the determination of iron content
GB/T 4325.26-1984 Methods for chemical analysis of molybdenum;The nessler reagent photometric method for the determination of nitrogen content
GB/T 5121.8-2024 Methods for chemical analysis of copper and copper alloys—Part 8 : Determination of oxygen, nitrogen and hydrogen contents
GB/T 4324.6-1984 Methods for chemical analysis of tungsten - The ortho-phenanthroline photometric method for the determination of iron content
GB/T 223.36-1994 Methods for chemical analysis of iron, steel and alloy The neutral titration method for the determinaion of nitrogen content after distillation separation
GB/T 6730.24-1986 Methods for chemical analysis of iron ores; The arsenazo 3 photometric method for the determination of rare earth elements content
GB/T 8158.4-1987 Methods for chemical analysis of sodium fluoride--The 1, 10-phenanthroline spectro photometric method for the determination of iron content
GB/T 10267.5-1988 Method for analysis of calcium metal-The determination of nitrogen by distillation-Nessler reagent photometric method
GB 223.37-1985 Methods for chemical analysis of iron, steel and alloys Distillation separation-volumetric determination of nitrogen content
GB/T 10574.5-1989 Tin-lead solders-Determination of iron content-1,10-phenanthroline spectrophotometric method
GB/T 15076.4-2020 Methods for chemical analysis of tantalum and niobium—Part 4:Determination of iron content—1,10-Phenanthroline spectrophotometry
GB/T 16555-2008 Chemical analysis of refractories containing carbon and silicon carbide or nitride
GB/T 4375.2-1984 Methods for chemical analysis of gallium;The 4-(2-pyridylazo)-resorcinol photometric method for the determination of lead content
GB/T 14422-2008 Analysis of water used in boiler and cooling system - Determination of benzotriazole
GB/T 13748.4-1992 Magnesium and its alloys--Determination of cerium content--Tribromoarsenazo spectrophotometric method
GB 10267.5-1988 Analytical method for calcium metal Distillation-Nessler reagent photometric determination of nitrogen
GB/T 4324.15-1984 Methods for chemical analysis of tungsten--The chlorophosphonazo I photometric method for the determination of magnesium content
GB/T 6609.4-1986 Methods for chemical analysis of aluminium oxide--The orthophenanthroline photometric method for the determination of ferric oxide content
GB 223.36-1985 Methods for chemical analysis of iron, steel and alloy--The volumetric method for the determination of nitrogen content after distillation separation
GB/T 15076.13-1994 Methods for chemical analysis of tantalum and niobium-Determination of nitrogen content in tantalum
GB/T 4324.6-2012 Methods for chemical analysis of tungsten - Part 6: Determination of iron content-1,10-phenanthroline spectrophotometry
GB/T 8220.2-1998 Methods for chemical analysis bismuth--Determination of iron content--1, 10-Phenanthroline photometric method
GB/T 4325.15-1984 Methods for chemical analysis of molybdenum;The chlorophosphonazo 1 photometric method for the determination of magnesium content
GB/T 13748.5-1992 Magnesium and its alloys--Determination of iron content--Orthophenanthroline spectrophotometric method
GB/T 20931.4-2007 Methods for chemical analysis of lithium-Determination of iron content-Orthopenanthroline spectrophotometric method
GB/T 14265-1993 rule of chemical analysis for hydrogen, oxygen, nitrogen, carbon and sulfur in metals materials
GB/T 5687.4-1985 Methods for chemical analysis of ferro-chromium; The neutralization titration method for the determination of nitrogen content
GB/T 4325.6-1984 Methods for chemical analysis of molybdenum;The ortho-phenanthroline photometric method for the determination of iron content
GB/T 20931.9-2007 Methods for chemical analysis of lithium—Determination of nitrogen content—Mercuric potassium iodide spectrophotometric method
GB/T 4324.26-1984 Methods for chemical analysis of tungsten - The Nessler reagent photometric method for the determination of nitrogen content
GB/T 4698.7-2011 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Determination of oxygen and nitrogen content
GB/T 17592.3-1998 Textiles--Test method of the use of banned azo colourants--Thin-layer chromatography
GB/T 13747.2-1992 and zirconium alloys - Determination of iron content-1, 10-phenanthroline spectrophotometric method

工业和信息化部

YS/T 540.4-2018 Methods for chemical analysis of vanadium- Part 4:Determination of iron content- 1, 10-phenanthroline spectrophotometry
YS/T 1467.10-2021 Hafnium Chemical Analysis Methods Part 10: Determination of Oxygen and Nitrogen Amounts
YS/T 1179.3-2017 Chemical analysis methods of aluminum slag-Part 3:Determination of carbon，nitrogen-Element analysis method

Xinjiang Provincial Standard of the People's Republic of China

DB65/T 602.3-2001 The determinanation of ammonium nitrogen in soil
DB65/T 602.2-2001 The determinanation of hydrolyzable nitrogen in soil
DB65/T 602.4-2001 The determinanation of nitrate nitrogen in soil

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 14265-2017 General rule of chemical analysis for hydrogen, oxygen, nitrogen, carbon and sulfur in metallic materials
GB/T 19143-2017 Analytical method of element for carbon,hydrogen,oxygen and nitrogen in rock organics
GB/T 16555-2017 Chemical analysis of refractories containing carbon and silicon carbide or nitride
GB/T 34500.5-2017 Chemical analysis methods for rare earth residue and waste water―Part 5:Determination of ammonia nitrogen content
GB/T 15076.13-2017 Methods for chemical analysis of tantalum and niobium—Part 13:Determination of nitrogen content—Inert gas fusion thermal conductivity method

Professional Standard - Non-ferrous Metal

YS/T 372.18-2006 Method for elementary analysis of precious alloy - Determination of gadolinium content - Chlorophosphonazo Ⅲ spectrophotometry
YS/T 535.4-2006 Sodium fluoride chemical analysis method o-phenanthrene spectrophotometric determination of iron content
YS/T 536.2-2006 Bismuth Chemical Analysis Method 1,10-Phenanthroline Spectrophotometric Determination of Iron Content
YS/T 520.4-2006 Methods for chemical analysis of gallium. The 4, 7-diphenyl-1, 10-phenanthroline photometric method for the determination of iron content
YS/T 372.19-2006 Method for elementary analysis of precious alloy—Determination of yttrium content—Chlorophosphonazo Ⅲ spectrophotometry
YS/T 74.7-2010 Methods for chemical analysis of cadmium—Part 7:Determination of iron content—1,10-Phenanthroline spectrophotometry
YS/T 1179.3-2023 Chemical analysis methods of aluminium slags and ash – Part 3: Determination of carbon and nitrogen contents
YS/T 520.2-2006 Methods for chemical analysis of gallium. The 4-(2-pyridylazo)-resorcinol photometric method for the determination of lead content
YS/T 74.7-1994 Cadmium Chemical Analysis Method 1,10-Phenanthroline Spectrophotometric Determination of Iron Content

Professional Standard - Ferrous Metallurgy

YB/T 5330-2006 Methods for chemical analysis of vanadium pentoxide The ortho-phenanthroline spectrophotometric method for the determination iron content
YB/T 174.1-2000 Chemical analysis for silicon nitride bonded silicon carbide product. Determination of silicon nitride content. High pressure dissolve specimen method
YB/T 174.4-2000 Chemical analysis for silicon nitride bonded silicon carbide product. Determination of iron oxide content. o-Phenanthroline photometric method

Professional Standard - Aviation

HB 5220.43-1995 Determination of Lanthanum Content by DBC-Arsenazo Absorption Spectrophotometry Method for Chemical Analysis of Superalloys
HB 5219.19-1998 Methods for Chemical Analysis of Magnesium Alloy - Determination of Cerium Content with Tribromo Arsenazo Spectrophotometric Method
HB 5297.25-2001 Methods for Chemical Analysis of Titanium Alloys - Determination of Nitrogen Content by Water Vapor Distillation Method
HB 5297.20-2001 Methods for Chemical Analysis of Titanium Alloys - Determination of Cerium Content by Chlorophosphonazo III Spectrophotometric Method
HB 5422.23-1989 Chemical Analysis Methods for Copper Alloy - Arsenazo III Absorption Photometry for the Determination of Zirconium Content
HB 5220.42-1995 Determination of Cerium Content by DBC-Arsenazo Absorption Spectrophotometry Method for Chemical Analysis of Superalloys
HB 5297.17-2001 Methods for Chemical Analysis of Titanium Alloys - Determination of Zirconium Content by Arsenazo iii Photometric Method
HB 5297.24-2001 Methods for Chemical Analysis of Titanium Alloys - Determination of Oxygen and Nitrogen Content by Pulse Heating-infrared Thermal Conductance Method

Professional Standard - Commodity Inspection

SN/T 0736.11-2002 Chemical analysis of fertilizers for import and export - Determination of nitrogen content by auto analyzer

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

JJG 801-2004 Verification Regulation of Chemiluminescent NO/NOx Analyzers

Professional Standard - Rare Earth

XB/T 601.7-1993 Lanthanum hexaboride chemical analysis method 1,10-phenanthrene-phenanthrene spectrophotometric determination of iron content

Military Standard of the People's Republic of China-Commission of Science,Technology and Industry for National Defence

GJB 5381.11-2005 Methods of chemical analysis for pyrotech. Part 11: Determination of barium nitrate content. Azotometry method

Jilin Provincial Standard of the People's Republic of China

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

Professional Standard - Geology

DZ/T 0064.57-2021 Methods for analysis of groundwater quality- Part 57: Determination of ammonia nitrogen- Nessler's reagent spectrophotometry
DZ/T 0064.23-2021 Methods for analysis of groundwater quality- Part 23: Determination of iron content - Phenanthrolion spectrophotometry

国家能源局

SY/T 7315-2016 Comprehensive two-dimensional gas chromatography component analysis method for condensate oil

Japanese Industrial Standards Committee (JISC)

JIS K 0808:2008 Automatic total nitrogen analyzer
JIS R 1640:2002 Methods for the quantitative phase analysis of silicon nitride
JIS G 1311-7:2012 Method for chemical analysis of ferromanganese -- Part 7: Determination of nitrogen content
JIS G 1313-6:2012 Method for chemical analysis of ferrochromium .Part 6: Determination of nitrogen content
JIS R 1603:2007 Methods for chemical analysis of fine silicon nitride powders for fine ceramics
JIS R 1675:2007 Methods for chemical analysis of fine aluminium nitride powders for fine ceramics
JIS K 0170-3:2019 Testing methods for water quality by flow analysis -- Part 3: Total nitrogen
JIS R 1603:1994 Methods for chemical analysis of fine silicon nitride powders for fine ceramics
JIS K 0170-3:2011 Testing methods for water quality by flow analysis -- Part 3: Total nitrogen
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

SCC

BS 1121-39:1959 Methods for the analysis of iron and steel. Nitrogen in iron and steel
AWWA ACE58255 Analytical Methods for Organic-N in Water Sources
BS 1121-39:1967 Methods for the analysis of iron and steel. Nitrogen in iron and steel. Volumetric
BS 5551-4.1.5:1993 Fertilizers. Chemical analysis. Determination of nitrogen.-Method for determination of urea nitrogen content (gravimetric method using xanthydrol)
BS PD ISO/TS 22176:2020 Cosmetics. Analytical methods. Development of a global approach for validation of quantitative analytical methods
BS 6200-3.22.2:1985 Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of nitrogen-Steel: spectrophotometric method
BS 5766-4:1981 Methods for analysis of animal feeding stuffs-Determination of nitrogen content and calculation of crude protein content
NS 4746:1975 Water analysis - Determination of ammonia-nitrogen
BS 5766-4:1998 Methods for analysis of animal feeding stuffs-Determination of nitrogen content and calculation of crude protein content

Korean Agency for Technology and Standards (KATS)

KS L 9310-2017(2022) Methods for chemical analysis of aluminum nitride powders
KS I 2203-2011 Methods for determination of oxides of nitrogen in flue gases
KS L 9310-2017 Methods for chemical analysis of aluminum nitride powders
KS L 9310-2022 Methods for chemical analysis of aluminum nitride powders
KS I ISO 13878-2009(2019) Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
KS I ISO 13878-2023 Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
KS L 3318-1988 METHODS FOR CHEMICAL ANALYSIS OF FINE SILICON NITRIDE POWDERS FOR FINE CERAMICS
KS L 3318-1998 METHODS FOR CHEMICAL ANALYSIS OF FINE SILICON NITRIDE POWDERS FOR FINE CERAMICS
KS D 2573-2005 Methods for determination of nitrogen in zirconium and zirconium alloys
KS D 1910-6-2023 Method for chemical analysis of ferrochromium — Part 6: Determination of nitrogen content
KS L 1613-2023 Methods for chemical analysis of fine silicon nitride powders for fine ceramics
KS L 3318-2001 METHODS FOR CHEMICAL ANALYSIS OF FINE SILICON NITRIDE POWDERS FOR FINE CERAMICS
KS L 1613-1994 Methods for chemeical analysis of fine silicon nitride powers for fine ceramics
KS D ISO 1812-2002(2022) Copper alloys－Determination of iron content－1,10-Phenanthroline spectrophotometric method
KS D ISO 1812-2002(2017) Copper alloys－Determination of iron content－1,10-Phenanthroline spectrophotometric method
KS L 1613-2011(2021) Methods for chemical analysis of fine silicon nitride powers for fine ceramics
KS L 1613-2011(2016) Methods for chemical analysis of fine silicon nitride powers for fine ceramics
KS D ISO 793-2002(2017) Aluminium and aluminium alloys－Determination of iron－Orthophenanthroline photometric method
KS M 2418-2006 Standard test method for instrumental determination of carbon, hydrogen, and nitrogen in petroleum products and lubricants

Standard Association of Australia （SAA）

AS K1.12:1967 Methods for the analysis of iron and steel, Part 12: Nitrogen in steel: volumetric
AS K1.12:1959 Methods for the analysis of iron and steel, Part 12: Method for the determination of nitrogen in steel
AS 1050.12:1983/Amdt 1:1984 Steel analysis methods Determination of nitrogen in steel (steam distillation titration method)
AS 1050.12:1983(R2016) Steel analysis methods Determination of nitrogen in steel (steam distillation titration method)
AS 3580.5.1:2023 Methods for sampling and analysis of ambient air, Method 5.1: Determination of oxides of nitrogen — Direct-reading instrumental method
AS 1050.12:1983 Methods for the analysis of iron and steel - Determination of nitrogen in steel (steam distillation titrimetric method)
AS 3580.5.1:2011 Methods for sampling and analyzing ambient air. Direct-reading instrument method for determination of nitrogen oxides.

AT-ON

ONORM L 1091-1999 Chemical analysis of soils - Determination of inorganic nitrogen Nmin-method
ONORM L 1082-1999 Chemical analyses of soils - Determination of nitrogen according to Kjeldahl
ONORM M 6296-1993 Analysis of sewage Sludge - Determination of nitrogen components

VN-TCVN

TCVN 305-2010 Steel and iron.Determination of nitrongen content.Methods of chemical analysis.

RO-ASRO

STAS SR 13348-1-1996 Tea. Analysis methods. Determination of proteic nitrogen by the Kjeldahl method. Spectrophotometric method

TR-TSE

TS 2428-1976 METHODS FOR THE CHEMICAL ANALYSIS OF IRON AND STEELS DETERMINATION OF NITROGEN CONTENT
TS 3651-1981 METHODS FOR THE ANALYSIS OF WATER — DETERMINATION OF IRON CONTENT — 1,10 Phenanthroline Spectrophotometry Method

BE-NBN

NBN T 91-255-1976 Water analysis methods - Determination of the ammoniacal and organic nitrogen - (Kjeldahl nitrogen)
NBN T 91-253-1976 Water analysis methods - Determination of the albuminoid nitrogen
NBN T 91-252-1976 Water analysis methods - Determination of the ammoniacal nitro-gen after preliminary distillation

British Standards Institution (BSI)

BS 5551 SubSec.4.1.3:1986 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of total nitrogen content (titrimetric method after distillation)
BS 5551-4.1.3:1986 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of total nitrogen content (titrimetric method after distillation)
BS 5551 SubSec.4.1.5:1993 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of urea nitrogen content (gravimetric method using xanthydrol)
PD ISO/TS 22176:2020 Cosmetics. Analytical methods. Development of a global approach for validation of quantitative analytical methods
BS 1742-5.2:1991 Methods for chemical analysis of condensed milks - Determination of nitrogen content - Routine method
BS 1742-5.1:1991 Methods for chemical analysis of condensed milks - Determination of nitrogen content - Reference method
BS 6200-3.22.3:1986 Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of nitrogen. Steel: spectrophotometric method (for trace amounts)
BS 1016-106.2:1997 Methods for analysis and testing of coal and coke - Ultimate analysis of coal and coke - Determination of nitrogen content
BS 1742 Sec.5.2:1991 Methods for chemical analysis of condensed milks. Determination of nitrogen content. Routine method
BS 5551-4.1.2:1982 Fertilizers. Chemical analysis. Determination of nitrogen. Determination of ammoniacal nitrogen, titrimetric method after distillation
BS 1741-5.2:1990 Methods for chemical analysis of liquid milk and cream - Determination of the nitrogen content of liquid milk - Routine method

GSO

GSO ISO 13878:2014 Soil quality -- Determination of total nitrogen content by dry combustion ("elemental analysis")
BH GSO ISO 22176:2023 Cosmetics — Analytical methods — Development of a global approach for validation of quantitative analytical methods
GSO ISO 22176:2022 Cosmetics — Analytical methods — Development of a global approach for validation of quantitative analytical methods

Association Francaise de Normalisation

NF EN ISO 21814:2022 Technical ceramics - Methods for chemical analysis of aluminum nitride powders
NF EN ISO 17947:2023 Technical ceramics - Methods for the chemical analysis of fine silicon nitride powders
XP ISO/TS 22176:2020 Cosmetics - Analytical methods - Development of a global approach for the validation of quantitative analytical methods

Spanish Association for Standardization (UNE)

UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).
UNE-EN 12698-2:2007 Chemical analysis of nitride bonded silicon carbide refractories - Part 2: XRD methods

CZ-CSN

CSN ON 65 4510-1962 Analysis of industrial degassing. Nitrogen determination
CSN 42 0648 Cast.5-1986 Chemical analysis of metallic chromium. Determination of nitrogen by the titration and by the method with automatic analyzers
CSN 72 0120 Z1-1997 Basic analysis procedures for silicate. Determination method of potassium oxide and nitrogen flame photometry
CSN 72 0112 Cast.3 Z1-1997 Basic analysis procedures for silicate. Determination method of potassium oxide and nitrogen flame photometry
CSN 42 1112-1986 Metallic and nitrided manganese. Methods of taking and preparing samples for chemical and physical-chemical analysis

American Society for Testing and Materials (ASTM)

ASTM D3179-89(2002) Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
ASTM D3179-02 Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
ASTM D3179-89(1997)e1 Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
ASTM D3179-02e1 Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
ASTM D3179-89(1997) Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
ASTM E778-15 Standard Test Methods for Nitrogen in Refuse-Derived Fuel Analysis Samples
ASTM E778-87(2004) Standard Test Methods for Nitrogen in the Analysis Sample of Refuse-Derived Fuel
ASTM E778-87(1996) Standard Test Methods for Nitrogen in the Analysis Sample of Refuse-Derived Fuel
ASTM E778-08 Standard Test Methods for Nitrogen in the Analysis Sample of Refuse-Derived Fuel
ASTM E778-15(2021) Standard Test Methods for Nitrogen in Refuse-Derived Fuel Analysis Samples
ASTM D5373-21 Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke

YU-JUS

JUS B.H8.320-1988 Methods of analysis of coal and coke. Determination of nitrogen ccmtent - Makro Kjeldahl nethod
JUS C.A1.409-1982 Methods for chemical analysi$ of ferroalloys. Titrimetric determination ofnitrogen in ferro-chromium

RU-GOST R

GOST R ISO 15859-3-2010 Space systems. Fluid characteristics, sampling and methods of analysis. Part 3. Nitrogen

NL-NEN

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

International Organization for Standardization (ISO)

ISO/TS 22176:2020 Cosmetics — Analytical methods — Development of a global approach for validation of quantitative analytical methods

Danish Standards Foundation

DS 224:1975 Water analysis. Determination of ammonia-nitrogen
DS/EN 12698-2:2007 Chemical analysis of nitride bonded silicon carbide refractories - Part 2: XRD methods

IN-BIS

IS 5194-1969 Determination method of nitrogen-Kjeldahl method

Natural Gas Processor's Association (NGPA)

GPA STD 2103-2003 Tentative Method for the Analysis of Natural Gas Condensate Mixtures Containing Nitrogen and Carbon Dioxide by Gas Chromatography

Lithuanian Standards Office

LST EN 12698-2-2007 Chemical analysis of nitride bonded silicon carbide refractories - Part 2: XRD methods