Determination method of total nitrogen and total phosphorus

Determination method of total nitrogen and total phosphorus, Total:500 items.

In the international standard classification, Determination method of total nitrogen and total phosphorus involves: Water quality, Fertilizers, Analytical chemistry, Coals, External water conveyance systems, Milk and milk products, Meat, meat products and other animal produce, Soil quality. Pedology, Fuels, Animal feeding stuffs, Inorganic chemicals, Ferrous metals, Rubber, Surface treatment and coating, Products of the chemical industry, Wastes, Air quality, General methods of tests and analysis for food products, Organic chemicals, Non-metalliferous minerals, Lubricants, industrial oils and related products, Edible oils and fats. Oilseeds, Spices and condiments. Food additives, Farming and forestry, Test conditions and procedures in general, Construction materials, Tea. Coffee. Cocoa, Photography, Vocabularies, Raw materials for rubber and plastics, Sugar. Sugar products. Starch, Metalliferous minerals, Protection against fire, Ceramics, Ferroalloys, Headgear. Clothing accessories. Fastening of clothing.

American Society for Testing and Materials (ASTM), Determination method of total nitrogen and total phosphorus

ASTM D8001-16e1 Standard Test Method for Determination of Total Nitrogen, Total Kjeldahl Nitrogen by Calculation, and Total Phosphorus in Water, Wastewater by Ion Chromatography
ASTM D8001-16 Standard Test Method for Determination of Total Nitrogen, Total Kjeldahl Nitrogen by Calculation, and Total Phosphorus in Water, Wastewater by Ion Chromatography
ASTM D3590-11 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D3590-02 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D3590-17 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D1013-93(1998) Standard Test Method for Determining Total Nitrogen in Resins and Plastics
ASTM E258-67(2002) Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM D3228-22 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D8083-16 Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection
ASTM D5475-93(1997) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
ASTM E258-67(1996)e1 Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM D6556-10 Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-04 Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-00a Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-01a Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-01 Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-17 Standard Test Method for Carbon Black&x2014;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-07 Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption
ASTM D2973-71(2004) Standard Test Method for Total Nitrogen in Peat Materials
ASTM D2973-10e1 Standard Test Method for Total Nitrogen in Peat Materials
ASTM D2973-71(1998) Standard Test Method for Total Nitrogen in Peat Materials
ASTM D2973-10 Standard Test Method for Total Nitrogen in Peat Materials
ASTM D2973-22 Standard Test Method for Total Nitrogen in Peat Materials
ASTM D2973-16 Standard Test Method for Total Nitrogen in Peat Materials
ASTM D2973-23 Standard Test Method for Total Nitrogen in Peat Materials
ASTM D8083-16(2023) Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection
ASTM D5475-93(2002) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
ASTM D6556-03 Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D3228-20 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D6556-02 Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-02a Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D3228-19 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D3228-08(2019) Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM E258-07 Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM UOP432-65T Total Nitrogen in Liquefied Petroleum Gases by Acid Extraction-Kjeldahl Procedure
ASTM D3228-96 Standard Test Method for Total Nitrogen In Lubricating Oils and Fuel Oils By Modified Kjeldahl Method
ASTM D3228-01 Standard Test Method for Total Nitrogen In Lubricating Oils and Fuel Oils By Modified Kjeldahl Method
ASTM D322-97(2002)e1 Standard Test Method for Gasoline Diluent in Used Gasoline Engine Oils by Distillation
ASTM D3228-03 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D3228-08 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D322-97(2016) Standard Test Method for Gasoline Diluent in Used Gasoline Engine Oils by Distillation
ASTM D3228-05 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D3590-02(2006) Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D3590-89(1994)e1 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D6556-09 Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-14 Standard Test Method for Carbon Blackmdash;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-21 Standard Test Method for Carbon Black—Total and External Surface Area by Nitrogen Adsorption

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Determination method of total nitrogen and total phosphorus

GB/T 10209.1-2008 Determination of monoammonium phosphate and diammonium phosphate.Part 1:Total nitrogen content
GB/T 10511-2008 Determination of tatal nitrogen content for nitrophosphate.Titrimetric method after distillation
GB/T 2441.1-2001 Determination of urea-Determination of total nitrogen content
GB/T 10209.1-2001 Determination of total nitrogen content for monoammonium phosphate and diammonium phosphate(Titrimetric method after distillation)
GB 6913.3-1986 Determination of Phosphate Total Phosphate
GB/T 609-2006 Chemical reagent General method for the determination of total nitrogen
GB/T 609-2018 Chemical reagent.General method for the determination of total nitrogen
GB/T 2441.1-2008 Determination of urea.Part 1:Total nitrogen content
GB 6913.2-1986 Determination of Phosphate Total Inorganic Phosphate
GB/T 6437-2002 Determination of phosphorus in feed--Spectphotometry
GB/T 8572-2001 Determination of total nitrogen content for compound fertilizers-Titrimetric method after distillation
GB/T 8572-2010 Determination of total nitrogen content for compound fertilizers titrimetric method after distillation
GB/T 17767.1-2008 Determination of organic-inorganic compound fertilizers.Part 1:Total nitrogen content
GB/T 41965-2022 Photography—Processing waste—Determination of total amino nitrogen(microdiffusion Kjeldahl method)
GB/T 17767.2-2010 Determination of organic-inorgnaic compound fertilizers-Part2:Total phosphorus content
GB/T 23952-2009 Inorganic chemicals for industrial use.General method for the determination of total nitrogen content.Distillation-acid-base titrations method
GB/T 10722-2003 Carbon black-Determination of total and external surface area by nitrogen adsorption
GB/T 10722-2014 Carbon black.Determination of total and external surface area.Nitrogen adsorption test method
GB/T 9984.2-2004 Sodium tripolyphosphate for industrial use-Determination of total phosphorus(v)oxide content-Quinoline phosphomolybdate gravimetric method
GB/T 23869-2009 Method for determination of the total mercury in pollen
GB 9170-1988 Determination method of total nitrogen content in lubricating oil and fuel oil (improved Kjeldahl method)
GB/T 17767.1-1999 Determination of total nitrogen content for organic-inorganic compound fertilizers

GOSTR, Determination method of total nitrogen and total phosphorus

GOST R 58596-2019 Soils. Methods for determination of total nitrogen
GOST 4151-1972 Drinking water. Method for determination of total hardness
GOST 27588-2020 Coke. Determination of total moisture

TR-TSE, Determination method of total nitrogen and total phosphorus

TS 974-1971 DETERMINATION OF NITROGEN, TOTAL SULPHUR CHLORINE AND PHOSPHORUS ?N COKE
TS 2928-1978 PHOSPHORIC ACID FOR INDUSTRIAL USE (INCLUDING FOODSTUFFS) — DETERMINATION OF TOTAL PHOSPHORUS (V) OXIDE CONTENT — QUINOLINE PHOSPHOMOLYBDATE GRAVIMETRIC METHOD

Professional Standard - Agriculture, Determination method of total nitrogen and total phosphorus

NY/T 1977-2010 Water-suluble fertilizers-Determination of total nitrogen, phosphorus and potassium content
NY 146.17-1988 Determination method for total phosphorus in fruit juice
GB 10511-1989 Determination of total nitrogen content in nitrophosphate fertilizers Titration after distillation
NY/T 82.17-1988 Determination of total phosphorus
GB 609-1988 General method for the determination of total nitrogen content of chemical reagents
GB/T 609-2018(XG1-2024) Chemical Reagents General Method for Determination of Total Nitrogen
NY/T 2542-2014 Fertilizers.Determination of total nitrogen content
NY/T 30-1986 Determination of rare earth oxide content in soil.Chlorophosphonazo-p-hippuric acid photometric method
GB 6260-1986 Determination of Total Oxidized Rare Earth in Soil Spectrophotometric Method for Azochlorophosphorus Hippurate
GB/T 42955-2023 Determination of total nitrogen content in fertilizers Dumas combustion method
HJ 199-2023 Determination of total nitrogen in water quality by gas phase molecular absorption spectrometry
NY 146.8-1988 Method for Determination of Fruit Juice Determination of Total Ash
GB/T 5009.11-1996 Determination method of total arsenic in food
GB/T 5009.17-1996 Determination method of total mercury in food
GB 12031-1989 Determination of total phosphorus pentoxide content in detergents - quinoline phosphomolybdate gravimetric method

RU-GOST R, Determination method of total nitrogen and total phosphorus

GOST 10671.4-2016 Reagents. Methods for determination of total nitrogen impurity
GOST 9794-2015 Meat products. Methods for the determination of total phosphorus content
GOST 26107-1984 Soils. Methods for determination of total nitrogen
GOST 26715-1985 Organic fertilizers. Methods for determination of total nitrogen
GOST 9794-1974 Meat products. Methods for the determination of total phosphorus contents
GOST 26717-1985 Organic fertilizers. Methods for determination of total phosphorus
GOST R 51473-1999 Milk. Spectrometric method for determination of total phosphorus content
GOST 26261-1984 Soils. Methods for determining total phosphorus and total potassium
GOST 24596.3-2015 Feed phosphates. Method for determination of nitrogen
GOST 31980-2012 Milk. Spectrometric method for determination of total phosphorus content
GOST EN 15478-2013 Fertilizers. Determination of total nitrogen in urea
GOST 32985-2014 Solid biofuels. Determination of carbon, hydrogen and nitrogen by instrumental methods
GOST R 54216-2010 Solid biofuels. Determination of total content of carbon, hydrogen and nitrogen by instrumental methods
GOST R ISO 7514-2012 Method for determination of total ash
GOST 28902-1991 Animal feeding stuffs. Determination of total phosphorus content. Spectrophotometric method
GOST 31584-2012 Milk. Spectrophotometric method for determination of total phosphorus content
GOST 24596.3-1981 Feed phosphates. Methods for determination of 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 ISO 1575-2013 Tea. Method for determination of total ash
GOST 29302-1992 Ammonium nitrate for industrial use. Method for determination of total nitrogen content (titrimetric) after distillation
GOST R 55800-2013 Starch. Method of determination total ash
GOST 30181.4-1994 Mineral fertilizers. Method for determination of total mass fraction of nitrogen in compound fertilizers and nitrale fertilizers in ammonium and nitrate forms (Deward Method)
GOST 27588-1991 Hard coal coke. Method for determination of total moisture content
GOST 13217.7-1990 Ferrovanadium. Methods for determination of total aluminium
GOST 4011-1972 Driking water. Methods for determination of total iron

Jilin Provincial Standard of the People's Republic of China, Determination method of total nitrogen and total phosphorus

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

Professional Standard - Coal, Determination method of total nitrogen and total phosphorus

MT/T 743.1-1997 Determination of total phosphorus in mine water
MT/T 743.1-2011 Determination of total phosphorus in mine water
MT/T 742.1-1997 Determination of total chrominum in mine water
MT/T 742.1-2011 Determination of total chrominum in mine water
MT/T 744-1997 Determination of the gross αand grossβradioactivity of the groundwater in coal mines

Group Standards of the People's Republic of China, Determination method of total nitrogen and total phosphorus

T/QAS 071-2021 Determination of total nitrogen in brine Kjeldahl method
T/NAIA 044-2021 Urine Total Nitrogen Determination in Livestock Kjeldahl Method
T/GXAS 477-2023 Determination of total nitrogen content in sugarcane juice —sulphuric acid titrimetric method
T/CHES 15-2017 Determination of Total Nitrogen in Water Quality Gas Phase Molecular Absorption Spectrometry
T/CMES 01011-2023 Determination method for content of nitrogen, sulfur and phosphorus in recycled sand for foundry
T/SDAQI 054-2021 Textiles - Determination of total content of lead and cadmium in metallic accessories

Indonesia Standards, Determination method of total nitrogen and total phosphorus

SNI 4146-2013 Method for determination of total nitrogen content in sediment by Kjeldahl titration method
SNI 13-4721-1998 Methods for determination of total nitrogen content in soils
SNI 06-6323-2000 Determination of total nitrogen content in peat
SNI 19-1501-1989 Test methods for total nitrogen oxide in air
SNI 13-4172-1996 Determination of total ferro oxide (Fe2O3) in phosphatic rock specimens by atomic absorption spectrometer method
SNI 13-4699-1998 Determination of total manganese (Mn-total) in manganese ores sample

Association Francaise de Normalisation, Determination method of total nitrogen and total phosphorus

NF V04-211:1971 MILK. DETERMINATION OF TOTAL NITROGEN CONTENT. (KJELDAHL METHOD).
NF A06-555:2010 Steel - Determination of nitrogen content - Spectrophotometric method.
NF U42-151:1984 Fertilizers. Determination of total nitrogen content. Titrimetric method after distillation.
NF T73-702:1977 Washing powders. Determination of total phosphorus (V)oxide content.quinoline phosphomolybdate gravimetric method.
NF X31-111*NF ISO 11261:1995 Soil quality. Determination of total nitrogen. Modified kjeldahl method.
NF EN 15478:2009 Fertilizers - Determination of total nitrogen in urea
NF U42-147*NF EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrate
NF V04-220*NF ISO 9874:2008 Milk - Determination of total phosphorus content - Method using molecular absorption spectrometry
NF V04-220:1992 Milk. Determination of total phophorus content. Method using molecular absorption spectrometry.
NF ISO 20620:2022 Fertilizers and amendments - Determination of total nitrogen by combustion
NF U42-416*NF EN 15478:2009 Fertilizers - Determination of total nitrogen in urea.
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 V04-406:1992 Meat and meat products. Determination of total phosphorus content.
NF V18-106*NF ISO 6491:2011 Animal feeding stuffs - Determination of phosphorus content - Spectrophotometric method
NF V18-106:1980 Animal feeding stuffs. Determination of total phosphorus content. Spectrophotometric method.
NF ISO 9874:2008 Milk - Determination of total phosphorus content - Molecular absorption spectrometry method
NF T73-282*NF EN 13716:2002 Surface active agents - Determination of total base nitrogen - Potentiometric titration.
NF EN 13716:2002 Surfactants - Determination of total basic nitrogen content - Potentiometric titration
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 U42-504*NF ISO 20620:2022 Fertilizers and soil conditioners - Determination of total nitrogen by combustion
NF X33-024*NF EN 14672:2005 Characterization of sludges - Determination of total phosphorus
NF EN 15561:2009 Fertilizers - Determination of total nitrogen in nitrated calcium cyanamide
NF T20-476:1973 Phosphoric acid for industrial use. Determination of total phosphoric pentoxide content. Gravimetric method using quinoline phosphomolybdate.
NF V03-613*NF EN ISO 3946:1994 Starches and derived products. Determination of total phosphorus content. Spectrophotometric method.
NF X34-117:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods.
NF X34-117*NF EN ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen
NF X31-418*NF ISO 13878:1998 Soil quality. Determination of total nitrogen content by dry combustion ("elemental analysis").
NF V04-284*NF ISO 2962:2010 Cheese and processed cheese products - Determination of total phosphorus content - Molecular absorption spectrometric method
NF EN ISO 16948:2015 Solid biofuels - Determination of total carbon, hydrogen and nitrogen content
NF EN 15560:2009 Fertilizers - Determination of total nitrogen in nitrate-free calcium cyanamide

International Organization for Standardization (ISO), Determination method of total nitrogen and total phosphorus

ISO 21793:2020 Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb), dissolved bound nitrogen (DNb), total bound phosphorus (TPb) and dissolved boun
ISO 11261:1995 Soil quality - Determination of total nitrogen - Modified Kjeldahl method
ISO 5315:1984 Fertilizers; Determination of total nitrogen content; Titrimetric method after distillation
ISO 6676:1981 Acid-grade fluorspar — Determination of total phosphorus content — Molybdophosphate photometric method
ISO 3099:1974 Oilseed residues — Determination of total nitrogen content
ISO 13730:1996 Meat and meat products - Determination of total phosphorus content - Spectrometric method
ISO 2294:1974 Meat and meat products; Determination of total phosphorus content (Reference method)
ISO 9438:1989 Metallurgical-grade fluorspar — Determination of total phosphorus content — Reduced molybdophosphate spectrometric method
ISO 23776:2021 Meat and meat products - Determination of total phosphorous content
ISO 9874:2006 Milk - Determination of total phosphorus content - Method using molecular absorption spectrometry
ISO 9874:2006 | IDF 42:2006 Milk — Determination of total phosphorus content — Method using molecular absorption spectrometry
ISO 9874:2006|IDF 42:2006 Determination of total phosphorus content in milk by molecular absorption spectrometry
ISO 6491:1980 Animal feeding stuffs; Determination of total phosphorus content; Spectrophotometric method
ISO 3331:1975 Ammonium nitrate for industrial use — Determination of total nitrogen content — Titrimetric method after distillation
ISO 9438:1993 Metallurgical-grade fluorspar; determination of total phosphorus content; reduced-molybdophosphate spectrometric method
ISO 4313:1976 Washing powders; Determination of total phosphorus(V) oxide content; Quinoline phosphomolybdate gravimetric method
ISO 29541:2010 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen content - Instrumental method
ISO 20620:2021 Fertilizers and soil conditioners - Determination of total nitrogen by combustion
ISO 6676:1990 Acid-grade and ceramic-grade fluorspar — Determination of total phosphorus content — Reduced-molybdophosphate spectrometric method
ISO 13878:1998 Soil quality - Determination of total nitrogen content by dry combustion ("elemental analysis")
ISO 3706:1976 Phosphoric acid for industrial use (including foodstuffs); Determination of total phosphorus(V) oxide content; Quinoline phosphomolybdate gravimetric method
ISO/TS 12902:2001 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
ISO/CD 29541:1976 Solid mineral fuels — Determination of total carbon, hydrogen and nitrogen content — Instrumental method
ISO 6676:1993 Acid-grade and ceramic-grade fluorspar; determination of total phosphorus content; reduced-molybdophosphate spectrometric method
ISO 9874:1992 Milk; determination of total phosphorus content; method using molecular absorption spectrometry
ISO 3946:1982 Starches and derived products; Determination of total phosphorus content; Spectrophotometric method
ISO 3357:1975 Sodium tripolyphosphate and sodium pyrophosphate for industrial use; Determination of total phosphorus(V) oxide content; Quinoline phosphomolybdate gravimetric method
ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen

European Committee for Standardization (CEN), Determination method of total nitrogen and total phosphorus

EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
EN 15478:2009 Fertilizers - Determination of total nitrogen in urea
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 14672:2005 Characterization of sludges - Determination of total phosphorus
EN 13716:2001 Surface active agents - Determination of total base nitrogen - Potentiometric titration
EN ISO 3946:1994 Starches and Derived Products - Determination of Total Phosphorous Content - Spectrometric Method (ISO 3946:1982)
EN 15104:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
EN 15560:2023 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free

Hebei Provincial Standard of the People's Republic of China, Determination method of total nitrogen and total phosphorus

DB13/T 1224-2010 Determination method of total nitrogen in organic chemical products
DB13/T 2499.3-2017 Determination methods for liquid mixtures: Part 3: Determination of total phosphorus (ammonium molybdate spectrophotometric method)

VN-TCVN, Determination method of total nitrogen and total phosphorus

TCVN 6498-1999 Soil quality.Determination of total nitrogen.Modifierd Kejldahl method
TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
TCVN 5265-1990 Bee products.Determination of total nitrogen content
TCVN 7141-2002 Meat and meat products.Determination of total phosphorus content.Spectrometric method
TCVN 6271-2007 Milk.Determination of total phosphorus content.Method using molecular absorption spectrometry
TCVN 6645-2000 Soil quality.Determination of total nitrogen content by dry combustion ("elemental analysis")
TCVN 5489-1991 Washing powders.Determination of total phosphorus (V) oxide content.Quinoline phosphomolybdate gravimetric method
TCVN 4053-1985 Soil.Method for the determination of total potassium
TCVN 7252-2003 Tobacco and tobacco products.Determination of total nitrogen content
TCVN 7254-2003 Tobacco and tobacco products.Determination of total phosphorus content
TCVN 4050-1985 Soil.Method for the determination of total organic matter

CZ-CSN, Determination method of total nitrogen and total phosphorus

CSN 65 4836-1983 Minerál fertilizers Methode for determination of total nitrogen content
CSN 68 4124-1980 Determination of small mounts of total nitrogen
CSN 46 7092-11-1998 Testing methods for feeding stuffs - Part 11: Determination of total phosphorus content
CSN ISO 6676:1992 Acid-grade fluorspar - Determination of total phosphorus content - Molybdophosphate photometric method
CSN 58 0703-7-1999 Testing methods of dehydrated products and seasonings - Part 7: Determinaton of total nitrogen
CSN 68 1155-1994 Testing methods for surfactants and detergents. Determination of total phosphorus oxide content
CSN 65 1025 Cast.10-1989 Sulphuric acid for industrial use. pectrophotometric method for the etermination of total nitrogen xides
CSN ISO 9438:1992 Metallurgical-grade fluorspar - Determination of total phosphorus content - Reduced molybdophosphate spectrometric method

British Standards Institution (BSI), Determination method of total nitrogen and total phosphorus

BS 7755-3.7:1995 Soil quality. Chemical methods. Determination of total nitrogen. Modified Kjeldahl method
BS 5551-4.1.3:1986 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of total nitrogen content (titrimetric method after distillation)
BS 4267-2:1988(1999) Ammonium nitrate — Part 2 : Method for determination of total nitrogen content
BS EN 15478:2009 Fertilizers - Determination of total nitrogen in urea
BS ISO 6851:2001 Photography. Processing waste. Determination of total amino nitrogen (microdiffusion Kjeldahl method)
BS 3762-3.19:1983 Analysis of formulated detergents. Quantitative test methods. Method for determination of total phosphorus (V) oxide content
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 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
BS EN 14672:2005 Characterization of sludges - Determination of total phosphorous
BS EN 14672:2005(2006) Characterization of sludges - Determination of total phosphorous
BS DD CEN/TS 15104:2006 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
BS DD CEN/TS 15104:2005 Solid biofuels — Determination of total content of carbon, hydrogen and nitrogen — Instrumental methods
BS EN ISO 3946:1994(2000) Starches and derived products — Determination oftotal phosphorous content — Spectrometric method
BS EN 13716:2002 Surface active agents - Determination of total base nitrogen - Potentiometric titration
BS ISO 20620:2021 Fertilizers and soil conditioners. Determination of total nitrogen by combustion
BS 4258-7:1978(1999) Methods of test for Phosphoric acid (orthophosphoric acid) for industrial use — Part 7 : Determination of total phosphorus (V) oxide content : quinoline phosphomolybdate gravimetric method
BS ISO 23776:2021 Meat and meat products. Determination of total phosphorous content
BS ISO 9874:2006 Milk - Determination of total phosphorus content - Method using molecular absorption spectrometry
24/30474161 DC BS ISO 29541 Coal - Determination of total carbon, hydrogen and nitrogen content. Instrumental method
BS 4401-10:1997 Methods of test for meat and meat products - Determination of total phosphorus content - Spectrometric method
BS 812-112:1990(1998) Testing aggregates — Part 112 : Methods for determination of aggregate impact value (AIV)
BS EN 15104:2011 Solid biofuels. Determination of total content of carbon, hydrogen and nitrogen. Instrumental methods
BS EN ISO 3946:1994 Starches and derived products - Determination of total phosphorus content - Spectrometric method
DD CEN/TS 15560:2007 Fertilizers. Determination of total nitrogen in calcium cyanamide nitrate free
BS EN ISO 16948:2015 Solid biofuels. Determination of total content of carbon, hydrogen and nitrogen
21/30442087 DC BS EN 15560. Fertilizers. Determination of total nitrogen in calcium cyanamide nitrate free
BS EN 15560:2023 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
BS ISO 29541:2010 Solid mineral fuels. Determination of total carbon, hydrogen and nitrogen content. Instrumental method
DD CEN/TS 15561:2007 Fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates

German Institute for Standardization, Determination method of total nitrogen and total phosphorus

DIN 51732:2014 Testing of solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
DIN 51732:2007 Testing of solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
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 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 14672:2005-10 Characterization of sludges - Determination of total phosphorus; German version EN 14672:2005
DIN EN 15478:2009 Fertilizers - Determination of total nitrogen in urea; English version of DIN EN 15478:2009-04
DIN EN 15478:2009-04 Fertilizers - Determination of total nitrogen in urea; German version EN 15478:2009
DIN EN 13716:2003-05 Surface active agents - Determination of total base nitrogen - Potentiometric titration; German version EN 13716:2001
DIN 51732:2014-07 Testing of solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
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 14672:2005 Characterization of sludges - Determination of total phosphorus; English version of DIN EN 14672
DIN ISO 11261:1997 Soil quality - Determination of total nitrogen - Modified Kjeldahl method (ISO 11261:1995)
DIN 10324:1990-12 Determination of the total phosphorus content of cheese and processed cheese; spectrometric method
DIN EN 13716:2003 Surface active agents - Determination of total base nitrogen - Potentiometric titration; German version EN 13716:2001
DIN EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; English version of DIN EN 15560:2009-06
DIN EN 15560:2021 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German and English version prEN 15560:2021
DIN EN ISO 16948:2015-09 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (ISO 16948:2015); German version EN ISO 16948:2015
DIN EN 15560:2023 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free

未注明发布机构, Determination method of total nitrogen and total phosphorus

DIN 51732 E:2013-07 Testing of solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
ASTM RR-D19-1194 2016 D8083-Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection
ASTM RR-D31-1024 2019 D8284-Test method for the Determination of the total alkalinity

Association of Official Analytical Chemists (AOAC), Determination method of total nitrogen and total phosphorus

AOAC 991.20 AOAC Official Method 991.20 Nitrogen (Total) in Milk Kjeldahl Methods
AOAC Official Method 2001.14 Determination of total nitrogen in cheese

SCC, Determination method of total nitrogen and total phosphorus

AS 1871.11:1976 List of methods for examination of waters Nitrogen (total Kjeldahl incl. ammoniacal)
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
BS 5659-6:1983 Methods of test for acid-grade fluorspar-Determination of total phosphorus content
BS 5659-6:1990 Methods of test for acid-grade fluorspar-Determination of total phosphorus content
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
NS-EN 15750:2009 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
DANSK DS/ISO 2294:1979 Meat and meat products - Determination of total phosphorus content (Reference method)
BS 4401-10:1975 Methods of test for meat and meat products-Determination of total phosphorus content
DANSK DS/ISO 21793:2020 Water quality – Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb), dissolved bound nitrogen (DNb), total bound phosphorus (TPb) and dissolved bound phosphorus (DPb) after wet chemical catalysed ozon...
NS-EN 14672:2005 Characterization of sludges — Determination of total phosphorus
DANSK DS/EN 14672:2005 Characterization of sludges - Determination of total phosphorus
UNE-CEN/TS 15478:2007 EX Fertilizers - Determination of total nitrogen in urea
SN-CEN/TS 15478:2006 Fertilizers — Determination of total nitrogen in urea
DANSK DS/EN 15478:2009 Fertilizers - Determination of total nitrogen in urea
NS-EN 15478:2009 Fertilizers — Determination of total nitrogen in urea
BS DD ISO/TS 12902:2002 Solid mineral fuels. Determination of total carbon, hydrogen and nitrogen. Instrumental 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
NS-EN 15104:2011 Solid biofuels — Determination of total content of carbon, hydrogen and nitrogen — Instrumental methods
SN-CEN/TS 15104:2005 Solid biofuels — Determination of total content of carbon, hydrogen and nitrogen — Instrumental methods
BS 5766-3:1981 Methods for analysis of animal feeding stuffs-Determination of total phosphorus content (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 13716:2002 Surface active agents - Determination of total base nitrogen - Potentiometric titration
NS-EN 13716:2001 Surface active agents — Determination of total base nitrogen — Potentiometric titration
DIN CEN/TS 15104:2005 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods; German version CEN/TS 15104:2005
DANSK DS/CEN/TS 15104:2005 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
UNE-CEN/TS 15104:2008 EX Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
DANSK DS/EN 13342:2001 Characterisation of sludges - Determination of total Kjeldahl nitrogen
VDI 2456-2004 Measurement of gaseous emissions — Reference method for the determination of the sum of nitrogen monoxide and nitrogen dioxide — Ion chromatographic method
DIN 51732 E:2013 Draft Document - Testing of solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
BS 770-6:1976 Methods for chemical analysis of cheese. Determination of total phosphorus content. Molecular absorption spectrometric method
SN-CEN/TS 15560:2007 Fertilizers — Determination of total nitrogen in calcium cyanamide nitrate free
08/30179310 DC BS EN 15478. Fertilizers. Determination of total nitrogen in urea
DANSK DS/EN 15560:2009 Fertilizers – Determination of total nitrogen in calcium cyanamide nitrate free
NS 4745:1991 Water analysis - Determination of the sum of nitrite nitrogen and nitrate nitrogen
DIN EN 15104 E:2010 Draft Document - Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods; German version FprEN 15104:2010
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
10/30219384 DC BS EN 15104. Solid biofuels. Determination of total content of carbon, hydrogen and nitrogen. Instrumental methods
DANSK DS/EN ISO 3946:1994 Starches and derived products - Determination of total phosphorus content - Spectrophometric method
NS 4725:1984 Water analysis - Determination of total phosphorus - Digestion by peroxodisulphate
DANSK DS/ISO 29541:2010 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen content - Instrumental method
NS 4743:1993 Water analysis — Determination of total nitrogen after oxidation by peroxodisulphate
NS-EN 15560:2023 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free

Korean Agency for Technology and Standards (KATS), Determination method of total nitrogen and total phosphorus

KS I ISO 11261-2008(2018) Soil quality－Determination of total nitrogen－Modified Kjeldahl method
KS I ISO 11261-2008(2021) Soil quality－Determination of total nitrogen－Modified Kjeldahl method
KS I ISO 11261:2008 Soil quality-Determination of total nitrogen-Modified Kjeldahl method
KS M ISO 5315-2007(2012) Fertilizers－Determination of total nitrogen content－Titrimetric method after distillation
KS M ISO 5315:2007 Fertilizers-Determination of total nitrogen content-Titrimetric method after distillation
KS M ISO 5315:2013 Fertilizers－Determination of total nitrogen content－Titrimetric method after distillation
KS H ISO 1871-2013(2018) Agricultural food products ― General directions for the determination of nitrogen by the Kjeldahl method
KS M ISO 4313-2003(2018) Washing powders－Determination of total phosphorus(V) oxide content－Quinoline phosphomolybdate gravimetric method
KS M ISO 6851-2002(2017) Photography－Processing waste－Determination of total amino nitrogen－Microdiffusion Kjeldahl method
KS H ISO 9874-2006(2016) Milk -- Determination of total phosphorus content -- Method using molecular absorption spectrometry
KS M ISO 4313:2003 Washing powders－Determination of total phosphorus(V) oxide content－Quinoline phosphomolybdate gravimetric method
KS M ISO 4313-2023 Washing powders－Determination of total phosphorus(V) oxide content－Quinoline phosphomolybdate gravimetric 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 H ISO 9909:2015 Oil of Dalmatian sage (Salvia officinalis L.)
KS H ISO 9874:2006 Milk－Determination of total phosphorus content－Method using molecular absorption spectrometry
KS H ISO 9874:2021 Milk — Determination of total phosphorus content —Method using molecular absorption spectrometry
KS I ISO 13878:2009 Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
KS H ISO 3946-2008(2018) Starches and derived products－Determination of total phosphorus content－Spectrophotometric method
KS H ISO 3946-2023 Starches and derived products－Determination of total phosphorus content－Spectrophotometric method
KS I ISO 15681:2014 Water quality — Determination of orthophosphate and total phosphorus contents by flow analysis(FIA and CFA)
KS I ISO 15681-2021 Water quality — Determination of orthophosphate and total phosphorus contents by flow analysis(FIA and CFA)
KS M ISO 6851-2002(2022) Photography－Processing waste－Determination of total amino nitrogen－Microdiffusion Kjeldahl method
KS M ISO 3357-2022 Sodium tripolyphosphate and sodium pyrophosphate for industrial use — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
KS H ISO 3946:2008 Starches and derived products－Determination of total phosphorus content－Spectrophotometric method
KS I ISO 15681-2014(2021) Water quality — Determination of orthophosphate and total phosphorus contents by flow analysis(FIA and CFA)
KS M ISO 3706-2017(2022) Phosphoric acid for industrial use(including foodstuffs) — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
KS M ISO 3706-2022 Phosphoric acid for industrial use(including foodstuffs) — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
KS M ISO 3357:2012 Sodium tripolyphosphate and sodium pyrophosphate for industrial use－Determination of total phosphorus(V) oxide content－Quinoline phosphomolybdate gravimetric method
KS M ISO 3357:2017 Sodium tripolyphosphate and sodium pyrophosphate for industrial use — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
KS M ISO 16948:2021 Solid biofuels — Determination of total content of carbon, hydrogen and nitrogen
KS M ISO 3706:2012 Phosphoric acid for industrial use(including foodstuffs)－Determination of total phosphorus(V) oxide content－Quinoline phosphomolybdate gravimetric method
KS M ISO 3706:2017 Phosphoric acid for industrial use(including foodstuffs) — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method

国家市场监督管理总局、中国国家标准化管理委员会, Determination method of total nitrogen and total phosphorus

GB/T 40723-2021 Rubber—Determination the contents of total sulfur and total nitrogen — Automatic analyser method
GB/T 6437-2018 Determination of phosphorus in feeds—Spectrophotometry

AENOR, Determination method of total nitrogen and total phosphorus

UNE 77318:2001 Soil quality. Determination of total nitrogen. Modified Kjeldahl method.
UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).
UNE-EN 14672:2006 Characterization of sludges - Determination of total phosphorus
UNE-EN 15478:2009 Fertilizers - Determination of total nitrogen in urea
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 13716:2002 Surface active agents - Determination of total base nitrogen - Potentiometric titration.
UNE 32008:1995 COAL. DETERMINATION OF TOTAL SULPHUR. ESCHKA METHOD.
UNE 55527:1979 SURFACE ACTIVE AGENTS. WASHING POWDERS. DETERMINATION OF TOTAL PHOSPHORUS (V) OXIDE CONTENT. QUINOLINE PHOSPHOMOLYBDATE METHOD
UNE-EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free

PL-PKN, Determination method of total nitrogen and total phosphorus

PN C04576 ArkusZ12-1973 Water and waste water Tests for nitrogenDetermination of total nitrogen of Kjeldahl

RO-ASRO, Determination method of total nitrogen and total phosphorus

SR 8379-9-1997 Superfosphate - Total phosphore content determination
STAS 8379/9-1981 SUPERPHOSPHATE Determination of total phosphon content
SR ISO 5315:1984 Fertilizers. Determination of totai nitrogen content.Titrimetric method after distilation
STAS SR ISO 9874:1994 Milk-Determination o total phosphorus content - Method using molecular absorption spectrometry
STAS 11624/4-1983 PHOSPHATING SOLUTIONS Total and free acidity determination
SR ISO 589:1981 Hard coal. Determination of tqtal moisture
STAS 9029-1986 DRESSED LEATHERS Determination of total nitrogen and hide snbstance
STAS 9952/7-1990 Milk and milk products. Phosphor total content determination of cheese

PH-BPS, Determination method of total nitrogen and total phosphorus

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

Japanese Industrial Standards Committee (JISC), Determination method of total nitrogen and total phosphorus

JIS K 0102-2:2022 Testing methods for industrial water and industrial wastewater -- Part 2: Inorganic anions, ammonium ion, organic nitrogen, total nitrogen and total phosphorus
JIS K 1468-4:1999 Acid-grade fluorspar -- Method for chemical analysis -- Part 4: Determination of total phosphorus content
JIS K 0170-3:2011 Testing methods for water quality by flow analysis -- Part 3: Total nitrogen
JIS K 0170-3:2019 Testing methods for water quality by flow analysis -- Part 3: Total nitrogen
JIS K 0170-4:2011 Testing methods for water quality by flow analysis -- Part 4: Orthophosphate and total phosphorus
JIS K 0170-4:2019 Testing methods for water quality by flow analysis -- Part 4: Orthophosphate and total phosphorus

GSO, Determination method of total nitrogen and total phosphorus

GSO ISO 21793:2024 Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb), dissolved bound nitrogen (DNb), total bound phosphorus (TPb) and dissolved bound phosphorus (DPb) after wet chemical catalysed ozon...
GSO ISO 6851:2015 Photography -- Processing waste -- Determination of total amino nitrogen (microdiffusion Kjeldahl method)
BH GSO ISO 2294:2015 Meat and meat products - determination of total phosphorus content (reference method).
BH GSO ISO 13730:2016 Meat and meat products -- Determination of total phosphorus content -- Spectrometric method
GSO ISO 2294:1988 Meat and meat products - determination of total phosphorus content (reference method).
OS GSO ISO 13730:2014 Meat and meat products -- Determination of total phosphorus content -- Spectrometric method
OS GSO ISO 2294:1988 Meat and meat products - determination of total phosphorus content (reference method).
GSO ISO 6491:2005 ANIMAL FEEDING STUFFS – DETERMINATION OF TOTAL PHOSPHORUS CONTENT – SPECTROPHOTOMETRIC METHOD
GSO ISO 23776:2023 Meat and meat products — Determination of total phosphorous content
BH GSO ISO 23776:2023 Meat and meat products — Determination of total phosphorous content
GSO ISO 9874:2008 Milk- Determination of total phosphorus content- Method using molecular absorption spectrometry
OS GSO ISO 6491:2005 ANIMAL FEEDING STUFFS – DETERMINATION OF TOTAL PHOSPHORUS CONTENT – SPECTROPHOTOMETRIC METHOD
OS GSO ISO 9874:2008 Milk- Determination of total phosphorus content- Method using molecular absorption spectrometry
GSO ISO 4313:1994 WASHING POWDERS – DETERMINATION OF TOTAL PHOSPHORUS (V) OXIDE CONTENT – QUINOLINE PHOSPHOMOLYBDATE GRAVIMIETRIC METHOD
GSO ISO 13730:2014 Meat and meat products -- Determination of total phosphorus content -- Spectrometric method
OS GSO ISO 4313:1994 WASHING POWDERS – DETERMINATION OF TOTAL PHOSPHORUS (V) OXIDE CONTENT – QUINOLINE PHOSPHOMOLYBDATE GRAVIMIETRIC METHOD
GSO ISO 29541:2014 Solid mineral fuels -- Determination of total carbon, hydrogen and nitrogen content -- Instrumental method
OS GSO ISO 29541:2014 Solid mineral fuels -- Determination of total carbon, hydrogen and nitrogen content -- Instrumental method
BH GSO ISO 29541:2016 Solid mineral fuels -- Determination of total carbon, hydrogen and nitrogen content -- Instrumental method
OS GSO ISO 3946:2015 Starches and derived products -- Determination of total phosphorus content -- Spectrophotometric method
GSO ISO 6059:2008 Water quality - Determination of the sum of calcium and magnesium - EDTA titrimetric method
GSO ISO 3946:2015 Starches and derived products -- Determination of total phosphorus content -- Spectrophotometric method
GSO ISO 3357:2015 Sodium tripolyphosphate and sodium pyrophosphate for industrial use -- Determination of total phosphorus(V) oxide content -- Quinoline phosphomolybdate gravimetric method
BH GSO ISO 13878:2016 Soil quality -- Determination of total nitrogen content by dry combustion ("elemental analysis")

AR-IRAM, Determination method of total nitrogen and total phosphorus

IRAM 12 030-1963 Method for determination of total iron content in organophosphorus pesticides

HU-MSZT, Determination method of total nitrogen and total phosphorus

MSZ 21976/8-1982 Inspection of solid waste in residential areas, determination of total nitrogen, phosphorus, and calcium content

YU-JUS, Determination method of total nitrogen and total phosphorus

JUS H.B8.288-1983 Fertilizers. Determination of content total-nitrogen. Volumetric method
JUS H.G8.104-1984 Reagents. Potassium chloride. Determination of total nitrogen content. Colorimetric method
JUS H.G8.343-1988 Reagents. Zine chloride. Determination of total nitrogen content. Colorinetcic metbod
JUS H.G8.489-1991 Reagents. Potassium permanganate. Determination of total nitrogen content. Colorimetric method
JUS H.G8.514-1991 Reagents. Potassium hydroxide. Determination of total nitrogen content. Colorimetric method
JUS H.G8.457-1991 Reagents. Potassium sulpbate. Determination of total nltrogen content. Colorlmetrlc metho?
JUS H.G8.083-1983 Reagents. Sodium chloride. Determination of total nitrogen content. Colorimetric method
JUS H.G8.435-1990 Reaqents. Potassium iodide. Determination of total nitroaen content. Colorimetric method
JUS H.G8.298-1987 Reagents. Oxaiic acid dihydrate. Determination of total nitrogen content. Colorimetric metbod
JUS H.G8.055-1983 Reagents. Hydrogen peroxide. Determination of total nitrogen content. Colorimetric method
JUS H.G8.290-1987 Reagents. Copper(ll) oxide. Determination of total nitrogen content. Colorimetric method
JUS H.G8.415-1991 Reagents. So?ium hydroxide. Determination of total nitrogen content. Colorimetric method
JUS H.G8.447-1990 Reagents. Zine sulphate heptahydrate. Determination of total nitrogen content. Colorimetric method
JUS E.Z8.016-1993 Soups,broaths,sauces and seasonings - Determination of total nitrogen content
JUS H.G8.261-1987 Reagents. Barium chloride dihydrate. Determination of total nitrogen content. Colorimetric method
JUS H.G8.158-1984 Reagents. Sodium carbonate anhydrous and sodium carbonate decahydrate. Determination of total ni-trogen contont. Colorimetric method
JUS H.G8.064-1983 Reagents. Copper sulphate pentahydrate. Determination of total nitrogen content. Colorimetric method

NL-NEN, Determination method of total nitrogen and total phosphorus

NEN 6662-1985 Sludge - Determination of total phosphorus content
NEN 2846-1984 Fruit juices - Determination of total phosphorus content - Gravimetric method
NEN 6395-1992 Fruit lemonades - Determination of total phosphorus content - Spectrometric method

Yunnan Provincial Standard of the People's Republic of China, Determination method of total nitrogen and total phosphorus

DB53/T 625-2014 Determination of Total Phosphorus in Coking Sewage by Phosphomolybdenum Blue Spectrophotometry

Danish Standards Foundation, Determination method of total nitrogen and total phosphorus

DS/EN 14672:2005 Characterization of sludges - Determination of total phosphorus
DS/EN 15478:2009 Fertilizers - Determination of total nitrogen in urea
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 13716:2002 Surface active agents - Determination of total base nitrogen - Potentiometric titration
DS/EN 13342:2001 Characterisation of sludges - Determination of total Kjeldahl nitrogen
DS/ISO 29541:2011 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen content - Instrumental method
DS/EN 15104:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
DS/EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free

Lithuanian Standards Office , Determination method of total nitrogen and total phosphorus

LST EN 14672-2005 Characterization of sludges - Determination of total phosphorus
LST EN 15478-2009 Fertilizers - Determination of total nitrogen in urea
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 EN 13716-2002 Surface active agents - Determination of total base nitrogen - Potentiometric titration
LST EN 15104-2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
LST EN 15560-2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free

CEN - European Committee for Standardization, Determination method of total nitrogen and total phosphorus

PD CEN/TS 15478:2006 Fertilizers - Determination of total nitrogen in urea
PD CEN/TS 15104:2005 Solid biofuels - Determination of total content of carbon@ hydrogen and nitrogen - Instrumental methods
PD CEN/TS 15560:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
PD CEN/TS 15561:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates

Professional Standard - Urban Construction, Determination method of total nitrogen and total phosphorus

CJ/T 77-1999 Municipal sewage.Determination of total nitrogen.Distillation and titration method
CJ/T 78-1999 Municipal sewage.Determination of total phosphorus.Spectrophotometric method
CJ 26.27-1991 Municipal sewage water quality inspection method standard Determination of total nitrogen Titration method after distillation
CJ 26.28-1991 Municipal sewage water quality inspection method standard Determination of total phosphorus spectrophotometric method
CJ/T 3018.9-1993 Leachate.Determination of total phosphorus.Spectrophotometric molybdovanadophosphate method

工业和信息化部, Determination method of total nitrogen and total phosphorus

HG/T 5669-2019 Determination of total nitrogen in textile dyeing and finishing auxiliaries

SE-SIS, Determination method of total nitrogen and total phosphorus

SIS SS 02 81 86-1985 Determination of total arsenic in water - Silver diethyldithiocarbamate spectrometric method
SIS 02 81 27-1974 Determ i nation of total phosphorous content of water
SIS SS 02 81 27-1984 Determination of total phosphorous in water - Digestion with peroxodisulphate

Professional Standard - Commodity Inspection, Determination method of total nitrogen and total phosphorus

SN/T 3097-2012 Determination of total nitrogen in fertelezers.Combustion
SN/T 3808-2014 Determination of total phosphorus content in diammonium phosphate.X-ray fluorescence spectrometry

IN-BIS, Determination method of total nitrogen and total phosphorus

IS 5960 Pt.9-1988 Meat and meat products—Test methods Part 9 Determination of total phosphorus content
IS 3708 Pt.8-1986 Test methods for natural rubber latex Part 8 Determination of total nitrogen [NRL: 12]
IS 5194-1969 Determination method of nitrogen-Kjeldahl method

GOST, Determination method of total nitrogen and total phosphorus

GOST 34789-2021 Brewing products. Identification. Determination of mass concentration of total nitrogen by Kjeldahl method

中华人民共和国环境保护部, Determination method of total nitrogen and total phosphorus

GB 11893-1989 Water quality-Determination of total phosphorus-Ammonium molybdate spectrophotometric method

PT-IPQ, Determination method of total nitrogen and total phosphorus

NP 1612-2002 Meat and meat products Determination of nitrogen content Reference method
NP 1842-2-2002 Meat and meat products Determination of total phosphorus content Part 2: Gravimetric method (Reference method)

Professional Standard - Tobacco, Determination method of total nitrogen and total phosphorus

YC/T 33-1996 Tobacco and tobacco products-Determination of total nitrogen-Kjeldahl method
YC/T 161-2002 Tobacco and tobacco products----Determination of total nitrogen----Continuous flow method

BE-NBN, Determination method of total nitrogen and total phosphorus

NBN T 63-130-1980 Washing powders - DEermination of total phosphorus(V) oxide content - Quinoline phosphomolybdate gravimErie method
NBN V 21-013-1978 Determination of the total nitrogen contaimng substances content of milk - Amido black method
NBN T 03-056-1979 Ammonium nitrate for industrial use - Determination of total nitrogen content - Titrimetric method after distillation

CU-NC, Determination method of total nitrogen and total phosphorus

NC 28-08-1987 Fertilxzers. Mixed, Granulated and Complex Fertilizers. Determination of Total Nitrogen, Assimilable Phosphorus and Potassium by the Weighing Method
NC 23-04-1968 Sulphuric acid. Determination oí total acidity. Volumetric method.

International Dairy Federation (IDF), Determination method of total nitrogen and total phosphorus

IDF 42-2006 Milk - Determination of total phosphorus content - Method using molecular absorption spectrometry

KR-KS, Determination method of total nitrogen and total phosphorus

KS H ISO 9874-2021 Milk — Determination of total phosphorus content —Method using molecular absorption spectrometry
KS H ISO 3946-2008(2023) Starches and derived products－Determination of total phosphorus content－Spectrophotometric method
KS M ISO 16948-2021 Solid biofuels — Determination of total content of carbon, hydrogen and nitrogen
KS I ISO 13878-2009(2023) Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
KS M ISO 3706-2017 Phosphoric acid for industrial use(including foodstuffs) — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method

Malaysia Standards, Determination method of total nitrogen and total phosphorus

MS 954 Pt.10-1986 Test methods for meat and meat products Part 10: Determination of total phosphorus content (Reference method)

AT-ON, Determination method of total nitrogen and total phosphorus

ONORM ISO 4313:1986 Washing powders; determination of total phosphorus(V)-oxide content; quinoline phosphomolybdate gravimetric method
ONORM DIN 10324-1993 Determination of the total phosphorus content of cheese and processed cheese - Spectrometric method

Tianjin Provincial Standard of the People's Republic of China, Determination method of total nitrogen and total phosphorus

DB12/T 1023-2020 Determination of total nitrogen content in organic fertilizers Dumas combustion method

VDI - Verein Deutscher Ingenieure, Determination method of total nitrogen and total phosphorus

VDI 2456-2003 Stationary source emissions - Determination of the total of nitrogen monoxide and nitrogen dioxide - Ion chromatography method

Professional Standard - Environmental Protection, Determination method of total nitrogen and total phosphorus

HJ 632-2011 Soil. Determination of Total Phosphorus by alkali fusion. Mo-Sb Anti spectrophotometric method
HJ 670-2013 Water quality.Determination of orthophosphate and total phosphorus.Continuous flow analysis (CFA) and Ammonium molybdate spectrophotometry
HJ 712-2014 Solid waste.Determination of total phosphorus.Ammonium metamolybdate spectrophotometric method
HJ/T 199-2005 Water quality Determination of tota-nitrogen Gas-phase molecular absorption spectrometry
HJ 671-2013 Water quality.Determination of total phosphorus.Flow injection Analysis (FIA) and Ammonium molybdate spectrophotometry
HJ 545-2009 Stationary source emission.Determination of total gaseous phosphorus.Quimociac volumetric analysis
HJ 545-2017 Determination of Gaseous Total Phosphorus in Exhaust Gases from Stationary Pollutants

Henan Provincial Standard of the People's Republic of China, Determination method of total nitrogen and total phosphorus

DB41/T 833-2013 Determination of Fluorine, Chloride and Total Phosphorus in Feeds by Ion Chromatography
DB41/T 1704-2018 Determination of total nitrogen content in compound fertilizers Dumas combustion method

Taiwan Provincial Standard of the People's Republic of China, Determination method of total nitrogen and total phosphorus

CNS 6611-2008 Method of test for meat and meat products - Determination of total phosphorus content
CNS 12957-2007 Method of test for milk and milk products - Determination of total phosphorus content in edible cheese
CNS 12957-1992 Method of Test for Milk and Milk Products:Determination of Total Phosphorus Content

Professional Standard - Aviation, Determination method of total nitrogen and total phosphorus

HB/Z 5108.1-1999 Analytical methods for phosphating solutions - Potentiometric titration for the determination of free and total acidity

NO-SN, Determination method of total nitrogen and total phosphorus

NS 4745-1991 Water analysis - Determination of the sum of nitrite nitrogen and nitrate nitrogen
NS 4743-1993 Water analysis. Determination of total nitrogen after oxidation with peroxodisulphate

ZA-SANS, Determination method of total nitrogen and total phosphorus

SANS 12902:2007 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
SANS 579:2005 Coke - Determination of total moisture
SANS 589:2005 Hard coal - Determination of total moisture

Shandong Provincial Standard of the People's Republic of China, Determination method of total nitrogen and total phosphorus

DB37/T 2735-2015 Determination of ammonium sulfate content in dry powder fire extinguishing agent Total nitrogen content method

Professional Standard - Non-ferrous Metal, Determination method of total nitrogen and total phosphorus

YS/T 587.15-2023 Calcined coke for prebaked blocks— Part 15: Determination of total carbon,hydrogen and nitrogen contents

Standard Association of Australia （SAA）, Determination method of total nitrogen and total phosphorus

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

ES-UNE, Determination method of total nitrogen and total phosphorus

UNE-EN ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (ISO 16948:2015)
UNE-EN 15560:2024 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free

ES-AENOR, Determination method of total nitrogen and total phosphorus

UNE 55-595-1981 Determination of total content of sulfuric acid and nitrogen in detergent formulation raw materials by post-distillation volumetric method