Nitrogen production method

Nitrogen production method, Total:271 items.

The international standard classification for "Nitrogen production method" includes: Deck equipment and installations , Coals , Fertilizers , Solid fuels , Cadmium, cobalt and their alloys , Tobacco, tobacco products and related equipment , Steels , Refractories , Abrasives , Ground service and maintenance equipment , Ceramic products , Aircraft and space vehicles in general .

The Chinese standard classification for "Nitrogen production method" includes: Engine room equipment , Coal analysis methods , Chemical fertilizer and chemical soil conditioner , Rare metals and their alloys analysis method , Tobacco, beverage crop and product , Metal casting and forging materials used for aviation and aerospace , Special refractory , Grinding material and apparatus , Material Protection , Analysis methods for environmental quality of soils , Chemical reagent in general , Aerospace ground equipment in general , Tobacco , Special ceramics .

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

GB/T 19227-2003 Determination of nitrogen in coal and coke―semi-micro gasification method
GB/T 13598-1992 A method for the determination of agricultural chemical residues containing nitrogenous in tobacco leaves
GB/T 9506.5-1988 Test method for nitrogen-released and gas-absorbed dynamic curve of nitrogen-doped getter
GB/T 19227-2008 Determination of nitrogen in coal
GB/T 30728-2014 Determination of nitrogen in solid biofuels
GB/T 30503-2014 General Specification for Marine Nitrogen Gas Generator
GB/T 6625-1986 Test methods for nitrogen content of nitrogen-doped getter
GB/T 2441.1-2001 Determination of urea-Determination of total nitrogen content
GB/T 15076.13-1994 Methods for chemical analysis of tantalum and niobium-Determination of nitrogen content in tantalum

Professional Standard - Aviation

HB 5493-1991 Determination method for carburizing and carbonitriding layer depth of aviation steel parts
HB 5023-1994 Determination of Depth of Nitriding and Nitrocarburizing and Carbonitriding of Aircraft Steel

Group Standards of the People's Republic of China

T/CMA 031-2021 Calibration method for basic nitrogen meters
T/CBMF 72-2019 Test method for air-purification performance of photocatalytic materials and products Removal of nitric oxides
T/QGCML 200-2021 Selection and marking methods of commonly used materials for nitrogen and oxygen generators
T/QAS 071-2021 Determination of total nitrogen in brine Kjeldahl method

Professional Standard - Agriculture

GB 13025.10-1991 Determination of Ferrous Potassium Nitride General Test Method for Salt Industry
GB 4845-1984 Methods of determination for helium
JAP-031 Azaphenanthridine detection method

Jilin Provincial Standard of the People's Republic of China

DB22/T 1932-2013 Determination method of total nitrogen content in peat (Kjeldahl method)

Professional Standard - Ferrous Metallurgy

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 - Machinery

JB/T 6075-1992 Titanium Nitride Coatings Metallographic Examination Method
JB/T 7994-1999 Chemical analysis methods of cubic boron nitride
JB/T 53025-1999 Product quality classification of adsorption oxygen and nitrogen production equipment

Professional Standard - Environmental Protection

HJ 717-2014 Soil quality - Determination of total nitrogen - Modified Kjeldahl method
HJ 537-2009 Water quality-Determination of ammonia nitrogen-Distillation-neutralization titration
HJ 535-2009 Water Quality - Determination of Ammonia Nitrogen - Nesslers Reagent Spectrophotometry

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

GJB 507-1988 Boron nitride chemical analysis method
GJB 770.303-1989 Test methods for gunpowder analysis: Determination of nitrogen content of nitrocellulose. Five-tube nitrogen meter method

Hebei Provincial Standard of the People's Republic of China

DB13/T 1224-2010 Determination method of total nitrogen in organic chemical products

Professional Standard - Commodity Inspection

SN/T 4042-2014 Determination of azide in wines for export
SN/T 1037-2002 Method for the determination of lime nitrogen for import and export

Tianjin Provincial Standard of the People's Republic of China

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

Professional Standard - Aerospace

QJ 3225-2005 General specification for making and charging nitrogen equipment

Professional Standard - Military and Civilian Products

WJ 2128-1993 Method for Determination of Nitrogen Content in Primer

海关总署

SN/T 1037-2020 Method for the inspection of Lime nitrogen for import and export

Professional Standard - Tobacco

YC/T 33-1996 Tobacco and tobacco products -- Determination of total nitrogen -- Kendal method

Anhui Provincial Standard of the People's Republic of China

DB34/T 2135-2014 Determination method of carbon, hydrogen and nitrogen in coal thermal conductivity method

Taiwan Provincial Standard of the People's Republic of China

CNS 6511-1980 Method of Test for Meat and Meat Products: Determination of Nitrogen Content

国家市场监督管理总局、中国国家标准化管理委员会

GB/T 40535.1-2021 Test methods of continuous nitride ceramic fibers—Part 1：Nitrogen content
GB/T 39716-2020 Test method for air-purification performance of photocatalytic materials and products—Removal of nitric oxide

IN-BIS

IS 5194-1969 Determination method of nitrogen-Kjeldahl method
IS 5960 Pt.1-1970 Test methods for meat and meat products Part Ⅰ Determination of nitrogen content

RU-GOST R

GOST 938.7-1968 Leather. Method of determination of nitrogen content
GOST R 55479-2013 Meat and meat products. Method for determination of amino-ammonia nitrogen
GOST R 50453-1992 Meat and meat products. Determination of nitrogen content (Reference method)
GOST 13020.7-1985 Metallic chrome. Methods for determination of nitrogen
GOST 9853.1-1979 Sponge titanium. Method for the determination of 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 15750-2016 Fertilizers. Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
GOST 14338.4-1982 Molybdenum. Methods for determination of nitrogen, oxygen and hydrogen
GOST 14339.4-1982 Tungsten. Methods for the determination of nitrogen, oxygen, hydrogen
GOST 33045-2014 Water. Methods for determination of nitrogen-containing matters
GOST R 54756-2011 Milk and milk products. Мethod for determination of mass portion of whey protein with Kjeldahl method
GOST 24596.3-2015 Feed phosphates. Method for determination of nitrogen
GOST 26107-1984 Soils. Methods for determination of total nitrogen
GOST 10671.4-2016 Reagents. Methods for determination of total nitrogen impurity
GOST 20851.1-1975 Mineral fertilizers. Methods for determination of nitrogen content
GOST 27753.8-1988 Greenhouse grounds method for determination of ammonium nitrogen
GOST R 55246-2012 Milk and milk products. Determination of non-protein nitrogen content by Kjeldahl method
GOST 27753.7-1988 Greenhouse grounds methods for determination of nitrate nitrogen
GOST 30181.7-1994 Mineral fertilizers. Method for determination of total mass fraction of nitrogen in compound fertilizers (in ammonium and amide forms, using hypochlorite method)
GOST 13.2.002-1990 Reprography. Copirography. Means of diazocopying. General technical requirements and methods of tests
GOST 16923-1983 Organic products. Preparation of standard solutions for analyses by diazotization and combination methods
GOST 16698.13-1984 Metallic manganese. Method for determination of nitrogen
GOST 16698.13-1993 Metallic manganese and nitrated manganese. Method for determination of nitrogen

International Organization for Standardization (ISO)

ISO/FDIS 937 Meat and meat products — Determination of nitrogen content — Reference method
ISO 937:2023 Meat and meat products — Determination of nitrogen content — Reference method
ISO/DIS 937 Meat and meat products — Determination of nitrogen content — Reference method
ISO 937:1978 Meat and meat products; Determination of nitrogen content (Reference method)
ISO/DIS 21068-4 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon — Part 4: XRD methods
ISO 332:1981 Coal — Determination of nitrogen — Macro Kjeldahl method
ISO 332:1974 Title missing - Legacy paper document
ISO 6106:1979 Abrasive products; Grain sizes of diamond or cubic boron nitride
ISO 8968-1:2001 Milk - Determination of nitrogen content - Part 1: Kjeldahl method (Second edition)
ISO 8968-1:2001|IDF 20-1:2001 Determination of milk nitrogen content Part 1: Kjeldahl method
ISO/TS 17837:2008 | IDF/RM 25: 2008 Processed cheese products — Determination of nitrogen content and crude protein calculation — Kjeldahl method

SCC

DANSK DS/ISO 937:1979 Meat and meat products – Determination of nitrogen content (Reference method)
BS 4401-2:1969 Methods of test for meat and meat products. Determination of nitrogen content
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
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 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
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
CSA Z223.24-M1983-1983(R1999) Method for the Measurement of Nitric Oxide and Nitrogen Dioxide in Air
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
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 5697-1:1979 Methods of test for starch and its derivatives and by-products. Determination of nitrogen conteny by the Kjeldahl method ( titrimetric method)
JIS K 0110:2018 Methods for determination of dinitrogen monoxide in flue gas
DANSK DS/EN 14211:2012 Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence
NS-EN 14211:2012 Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence
BS EN ISO 8968-1:2002 Milk. Determination of nitrogen content-Kjeldahl method
BS DD ISO/TS 17837:2008 Milk and milk products. Determination of nitrogen content and crude protein calculation. Kjeldahl method
BS 5697-2:1979 Methods of test for starch and its derivatives and by-products. Determination of nitrogen conteny by the Kjeldahl method ( spectrophotometric method)
VDI 2456-2004 Measurement of gaseous emissions — Reference method for the determination of the sum of nitrogen monoxide and nitrogen dioxide — Ion chromatographic method
DANSK DS/EN 25663:1994 Water quality - Determination of Kjeldahl nitrogen - Method after mineralization with selenium
NS-EN 14211:2005 Ambient air quality — Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence

Standard Association of Australia （SAA）

AS 2300.1.2.2:2008 Methods of chemical and physical testing for the dairying industry Method 1.2.2: General methods and principles- Determination of nitrogen—Nitrogen fractions from milk
AS 2300.1.2.2:1988 Methods of chemical and physical testing for the dairying industry - General methods and principles - Determination of nitrogen - Nitrogen fractions from milk
AS 1871.11:1976 List of methods for examination of waters Nitrogen (total Kjeldahl incl. ammoniacal)
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
AS 2300.1.2.1:1991 Methods of chemical and physical testing for the dairying industry - General methods and principles - Determination of nitrogen - Reference Kjeldahl method
AS 1871.10:1976 List of methods for examination of waters Nitrogen (ammonia)
AS K1.12:1959 Methods for the analysis of iron and steel, Part 12: Method for the determination of nitrogen in steel

British Standards Institution (BSI)

BS 4401-2:1980 Methods of test for meat and meat products. Determination of nitrogen content (reference method)
BS ISO 937:2023 Meat and meat products. Determination of nitrogen content. Reference method
BS 7755-3.7:1995 Soil quality. Chemical methods. Determination of total nitrogen. Modified Kjeldahl method
22/30444436 DC BS ISO 937. Meat and meat products. Determination of nitrogen content. Reference method
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
BS 5551-4.1.3:1986 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of total nitrogen content (titrimetric method after distillation)
BS EN 12698-1:2007 Chemical analysis of nitride bonded silicon carbide refractories - Chemical methods
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
DD ISO/TS 17837:2008 Milk and milk products. Determination of nitrogen content and crude protein calculation. Kjeldahl method
BS EN 25663:1993 Water quality. Determination of Kjeldahl nitrogen. Method after mineralization with selenium
BS EN ISO 8968-4:2016 Milk and milk products. Determination of nitrogen content. Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)

German Institute for Standardization

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 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 14211:2022-11 Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence; German and English version prEN 14211:2022 / Note: Date of issue 2022-09-30*Intended as replacement for DIN EN 14211 ...
DIN EN 14211:2012-11 Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence; German version EN 14211:2012 / Note: To be replaced by DIN EN 14211 (2022-11).
DIN EN 14211:2005 Air quality — measurement method for determining the concentration of nitrogen dioxide and nitrogen monoxide using chemiluminescence
DIN EN ISO 14891:2002-07 Milk and milk products - Determination of nitrogen content - Routine method using combustion according to the Dumas principle (ISO 14891:2002); German version EN ISO 14891:2002

Indonesia Standards

SNI 4146-2013 Method for determination of total nitrogen content in sediment by Kjeldahl titration method
SNI 13-3482-1994 Coal, Determination of nitrogen using Kyeldahl method
SNI 06-0042-1987 Nitrogen, Specification and test method

PT-IPQ

NP 1612-2002 Meat and meat products Determination of nitrogen content Reference method

Korean Agency for Technology and Standards (KATS)

KS D 2555-1995 Methods for determination of nitrogen in tantalum
KS D 2555-2015 Methods for determination of nitrogen in tantalum
KS D 1811-2003(2018) Methods for determination of nitrogen in iron and steel
KS D 1811-1993 Methods for determination of nitrogen in iron and steel
KS D 1811-2023 Methods for determination of nitrogen in iron and steel
KS D 2555-2020 Determination of nitrogen in tantalum
KS H ISO 3188-2023 Starches and derived products－Determination of nitrogen content by the Kjeldahl method－Titrimetric method
KS H ISO 3188-2008(2018) Starches and derived products－Determination of nitrogen content by the Kjeldahl method－Titrimetric method
KS D 1811-2003 Methods for determination of nitrogen in iron and steel
KS H ISO 5378-2023 Starches and derived products－Determination of nitrogen content by the Kjeldahl method－Spectrophotometric method
KS D 0274-1993 Method of measuring nitrided case depth for iron and stee1
KS I 2203-2011 Methods for determination of oxides of nitrogen in flue gases
KS D 2573-2015(2020) Methods for determination of nitrogen in zirconium and zirconium alloys
KS D 2573-1995 Methods for determination of nitrogen in zirconium and zirconium alloys
KS L 9310-2017 Methods for chemical analysis of aluminum nitride powders
KS D 2573-2020 Methods for determination of nitrogen in zirconium and zirconium alloys
KS L 9310-2022 Methods for chemical analysis of aluminum nitride powders
KS H ISO 5378-2008(2018) Starches and derived products－Determination of nitrogen content by the Kjeldahl method－Spectrophotometric method
KS D 0274-2023 Method of measuring nitrided case depth for iron and steel
KS D 2530-2021 Methods for determination of nitrogen in titanium and titanium alloys
KS D 2573-2015 Methods for determination of nitrogen in zirconium and zirconium alloys
KS D 2530-2016 Methods for determination of nitrogen in titanium and titanium alloys
KS D 0275-2023 Method of measuring surface hardness for nitrided iron and steel
KS D 2530-2007 Methods for determination of nitrogen in titanium and titanium alloys
KS D 2555-2005 Methods for determination of nitrogen in tantalum
KS D 0275-1993 Method of measuring surface hardness for nitrided iron and stee1
KS B 8022-2014 Measurement method of NOx emission rate for open type forced draught oil burning space heaters
KS B 8022-2010 Measurement method of NOx emission rate for open type forced draught oil burning space heaters
KS D 0274-1993(2018) How to measure the depth of nitride layer in steel
KS E ISO 333-2018 Coal－Determination of nitrogen－Semi-micro Kjeldahl method
KS E ISO 333-2003(2013) Coal－Determination of nitrogen－Semi-micro Kjeldahl method
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

Spanish Association for Standardization (UNE)

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-EN 14211:2013 Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence
UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).
UNE-EN 14211:2006 Ambient air quality - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence

American Society for Testing and Materials (ASTM)

ASTM D3590-02 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D3590-11 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D3590-17 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D1426-98 Standard Test Methods for Ammonia Nitrogen In Water
ASTM D1426-15(2021)e1 Standard Test Methods for Ammonia Nitrogen In Water
ASTM E147-61(2017) Standard Specification for Apparatus for Microdetermination of Nitrogen by Kjeldahl Method
ASTM D3533-90(1995)e1 Standard Method of Rubber8212;Nitrogen Content
ASTM D1426-08 Standard Test Methods for Ammonia Nitrogen In Water
ASTM D1426-03 Standard Test Methods for Ammonia Nitrogen In Water
ASTM D3533-90(2001) Standard Test Method for Rubber8212;Nitrogen Content
ASTM D1426-15 Standard Test Methods for Ammonia Nitrogen In Water
ASTM C1494-01 Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
ASTM E258-67(2002) Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM RR-D31-1008 1996 D2868-Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather
ASTM D3228-22 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D3533-05 Standard Test Method for Rubber—Nitrogen Content
ASTM D982-16 Standard Test Method for Organic Nitrogen in Paper and Paperboard
ASTM D982-65 Method of Test for Organic Nitrogen in Paper and Paperboard
ASTM D2973-71(1998) Standard Test Method for Total Nitrogen in Peat Materials
ASTM C1494-13(2018) Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
ASTM C1494-13(2024) Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
ASTM D5475-93(1997) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
ASTM D2973-71(2004) Standard Test Method for Total Nitrogen in Peat Materials
ASTM D2973-22 Standard Test Method for Total Nitrogen in Peat Materials
ASTM D2973-10e1 Standard Test Method for Total Nitrogen in Peat Materials
ASTM D2973-16 Standard Test Method for Total Nitrogen in Peat Materials
ASTM D2973-10 Standard Test Method for Total Nitrogen in Peat Materials
ASTM D2973-23 Standard Test Method for Total Nitrogen in Peat Materials
ASTM D982-63(1971) Method of Test for Organic Nitrogen in Paper and Paperboard
ASTM D982-05 Standard Test Method for Organic Nitrogen in Paper and Paperboard

Japanese Industrial Standards Committee (JISC)

JIS H 1685:2000 Method for determination of nitrogen in tantalum
JIS H 1685:1976 Methods for determination of nitrogen in tantalum
JIS B 9506:1977 Methods of test for diazo copying machines
JIS G 1228:1997 Iron and steel -- Methods for determination of nitrogen content
JIS H 1612:1993 Methods for determination of nitrogen in titanium and titanium alloys
JIS L 0855:1998 Test methods for colour fastness to nitrogen oxides
JIS H 1653:1991 Methods for determination of nitrogen in zirconium and zirconium alloys
JIS R 1640:2002 Methods for the quantitative phase analysis of silicon nitride
JIS G 0562:1993 Method of measuring nitrided case depth for iron and steel
JIS K 0104:2000 Methods for determination of nitrogen oxides in flue gas
JIS G 1228 AMD 1:2006 Iron and steel -- Methods for determination of nitrogen content (Amendment 1)
JIS K 0104:1984 Methods for determination of oxides of nitrogen in flue gases
JIS G 0563:1993 Method of measuring surface hardness for nitrided iron and steel
JIS K 2609:1990 Crude petroleum and petroleum products -- Determination of nitrogen content
JIS K 0104:2011 Methods for determination of nitrogen oxides in flue gas

Lithuanian Standards Office

LST EN 15750-2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
LST ISO 937:2000 Meat and meat products. Determination of nitrogen content (Reference method) (idt ISO 937:1978(E))
LST EN 14211-2012 Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence

Danish Standards Foundation

DS/EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
DS/EN 14211:2012 Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence

FI-SFS

SFS 5023-1984 Technical drawing. Nitriding drawing

GOSTR

GOST 9853.1-1996 Sponge titanium. Method for determination of nitrogen
GOST R 58596-2019 Soils. Methods for determination of total nitrogen

KR-KS

KS D 1811-2003(2023) Methods for determination of nitrogen in iron and steel
KS H ISO 3188-2008(2023) Starches and derived products－Determination of nitrogen content by the Kjeldahl method－Titrimetric method
KS D 0274-1993(2023) Method of measuring nitrided case depth for iron and steel
KS H ISO 5378-2008(2023) Starches and derived products－Determination of nitrogen content by the Kjeldahl method－Spectrophotometric method
KS D 0275-1993(2023) Method of measuring surface hardness for nitrided iron and steel

HU-MSZT

MSZ 9279/8-1980 Fine chemicals testing methods. Nitrogen pollution detection
MSZ 21862/5-1976 How to test nitrogen dioxide gas

AR-IRAM

IRAM 14 006-1958 Determination of nitrogen in milk and dairy products

CZ-CSN

CSN 65 0176 Cast.7-1979 Testing methods for tarch. Determination of nitrogen
CSN 65 4836-1983 Minerál fertilizers Methode for determination of total nitrogen content

PH-BPS

PTS 86-1970 Method of Test for the Determination of Armoniacal Nitrogen
PTS 98-1970 Standardization of the Method of Test for the Determination of Total Nitrogen Content.Devarda Method

GSO

BH GSO 2007:2011 Methods of test for Specification for Industrial Nitrogen
OS GSO 2007:2010 Methods of test for Specification for Industrial Nitrogen
GSO 1149:2002 Test methods of nitrous oxide gas for medical purposes.
OS GSO ISO 937:1987 Meat and meat products -Determination of nitrogen content (Reference method).
BH GSO ISO 937:2015 Meat and meat products -Determination of nitrogen content (Reference method).
GSO ISO 937:1987 Meat and meat products -Determination of nitrogen content (Reference method).
GSO 2404:2014 GASES – MEDICAL NITROGEN GAS –TEST METHODS
BH GSO 2404:2015 GASES – MEDICAL NITROGEN GAS –TEST METHODS
GSO 2007:2010 Methods of test for Specification for Industrial Nitrogen

European Committee for Standardization (CEN)

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 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
EN ISO 14891:2002 Milk and Milk Products - Determination of Nitrogen Content - Routine Method Using Combustion According to the Dumas Principle
prEN 14211 Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence
FprEN ISO 21068-4 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 4: XRD methods (ISO/FDIS 21068‑4:2024)

VN-TCVN

TCVN 5255-2009 Soil quality.Method for the determination of bio-available nitrogen
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 305-2010 Steel and iron.Determination of nitrongen content.Methods of chemical analysis.
TCVN 6498-1999 Soil quality.Determination of total nitrogen.Modifierd Kejldahl method
TCVN 3708-1990 Aquatic products.Method for the determination of nitrogen amino acid content

Association Francaise de Normalisation

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 14891:2003 Milk and dairy products - Determination of nitrogen content - Practical method by combustion according to the Dumas principle
NF EN 14211:2012 Ambient air - Standard method for measuring the concentration of nitrogen dioxide and nitric oxide by chemiluminescence
NF V04-211:1971 MILK. DETERMINATION OF TOTAL NITROGEN CONTENT. (KJELDAHL METHOD).
NF EN ISO 8968-1:2014 Milk and dairy products - Determination of nitrogen content - Part 1: Kjeldahl method and calculation of crude protein content

GOST

GOST R 50255-1992 Solid mineral fuels. Methods for the determination of nitrogen
GOST 31027-2002 Meat and meat products. Determination of nitrogen content (arbitration method)

BE-NBN

NBN T 91-255-1976 Water analysis methods - Determination of the ammoniacal and organic nitrogen - (Kjeldahl nitrogen)

Society of Automotive Engineers (SAE)

SAE AMS2759/10A-2014 Automated Gaseous Nitriding Controlled by Nitriding Potential
SAE AMS2759/10-1999 Automated Gaseous Nitriding Controlled by Nitriding Potential

NL-NEN

NEN 2038-1979 Air quality - Calibration gas mixture of nitrogen monoxide in nitrogen - Gravimetric preparation

Canadian Standards Association (CSA)

CSA Z223.24 -M1983-1983 Method for the Measurement of Nitric Oxide and Nitrogen Dioxide in Air General Instruction No 1 R(1999)

CU-NC

NC 26-124-1985 Drugs, Deterrnination of Nitrogen by Kjejdah!. Testing Method

RO-ASRO

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

AT-ON

ONORM L 1091-1999 Chemical analysis of soils - Determination of inorganic nitrogen Nmin-method
ONORM M 6248-1988 Water quality; determlnation of Kjeldabl nitrogen; method ajter mineralization with selenium

TR-TSE

TS 2428-1976 METHODS FOR THE CHEMICAL ANALYSIS OF IRON AND STEELS DETERMINATION OF NITROGEN CONTENT

(U.S.) Ford Automotive Standards

FORD FLTM EU-BA 054-01-2000 METAL FOIL METHOD FOR DETERMINATION OF C- AND N-POTENTIAL OF CARBURIZING AND CARBONITRIDING FURNACE ATMOSPHERES