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Determination of total nitrogen and total phosphorus

Determination of total nitrogen and total phosphorus, Total:498 items.

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

International Organization for Standardization (ISO), Determination 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 3099:1974 Oilseed residues — Determination of total nitrogen content
ISO 11261:1995 Soil quality - Determination of total nitrogen - Modified Kjeldahl method
ISO 23776:2021 Meat and meat products - Determination of total phosphorous content
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 9438:1989 Metallurgical-grade fluorspar — Determination of total phosphorus content — Reduced molybdophosphate spectrometric method
ISO 20620:2021 Fertilizers and soil conditioners - Determination of total nitrogen by combustion
ISO 2294:1974 Meat and meat products; Determination of total phosphorus content (Reference method)
ISO 13730:1996 Meat and meat products - Determination of total phosphorus content - Spectrometric method
ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen
ISO 3331:1975 Ammonium nitrate for industrial use — Determination of total nitrogen content — Titrimetric method after distillation
ISO 4313:1976 Washing powders; Determination of total phosphorus(V) oxide content; Quinoline phosphomolybdate gravimetric method
ISO 9438:1993 Metallurgical-grade fluorspar; determination of total phosphorus content; reduced-molybdophosphate spectrometric method
ISO 29541:2010 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen content - Instrumental method
ISO 9874:2006 Milk - Determination of total phosphorus content - Method using molecular absorption spectrometry
ISO 6491:1980 Animal feeding stuffs; Determination of total phosphorus content; Spectrophotometric method
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 6676:1990 Acid-grade and ceramic-grade fluorspar — Determination of total phosphorus content — Reduced-molybdophosphate spectrometric method
ISO 3706:1976 Phosphoric acid for industrial use (including foodstuffs); Determination of total phosphorus(V) oxide content; Quinoline phosphomolybdate gravimetric method
ISO 20236:2018 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion
ISO 3357:1975 Sodium tripolyphosphate and sodium pyrophosphate for industrial use; Determination of total phosphorus(V) oxide content; Quinoline phosphomolybdate gravimetric method
ISO 6676:1993 Acid-grade and ceramic-grade fluorspar; determination of total phosphorus content; reduced-molybdophosphate spectrometric 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/CD 20236 Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN b) and dissolved bound nitrogen (DN b) after high temperature catalytic oxidative combustion
ISO/DIS 20236:2023 Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN b) and dissolved bound nitrogen (DN b) after high temperature catalytic oxidative combustion
ISO 3946:1982 Starches and derived products; Determination of total phosphorus content; Spectrophotometric method
ISO 9874:1992 Milk; determination of total phosphorus content; method using molecular absorption spectrometry
ISO 15672:2000 Rubber and rubber additives - Determination of total nitrogen content using an automatic analyser
ISO 914:1977 Sulphuric acid and oleum for industrial use; Determination of total nitrogen content; Titrimetric method after distillation
ISO 14255:1998 Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
ISO 19043:2023 Natural rubber latex concentrate — Determination of total phosphate content by spectrophotometric method
ISO 17812:2007 Paper, board and pulps - Determination of total magnesium, total calcium, total manganese, total iron and total copper
ISO 6851:2001 Photography - Processing waste - Determination of total amino nitrogen (microdiffusion Kjeldahl method)

National Metrological Verification Regulations of the People's Republic of China, Determination of total nitrogen and total phosphorus

JJG 1094-2013 Water Quality On-line Analyzers of Total Phosphorus and Total Nitrogen

TR-TSE, Determination 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 of total nitrogen and total phosphorus

NY/T 1977-2010 Water-suluble fertilizers-Determination of total nitrogen, phosphorus and potassium content
GB 10511-1989 Determination of total nitrogen content in nitrophosphate fertilizers Titration after distillation
NY/T 82.17-1988 Determination of total phosphorus
NY/T 2542-2014 Fertilizers.Determination of total nitrogen content
SL/T 788.1-2019 Part 1: Determination of total nitrogen in water quality
NY 146.17-1988 Determination method for total phosphorus in fruit juice
GB 8572-1988 Determination of total nitrogen content in compound fertilizer
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 609-1988 General method for the determination of total nitrogen content of chemical reagents
GB/T 42955-2023 Determination of total nitrogen content in fertilizers Dumas combustion method
NY/T 2017-2011 Determination of nitrogen,phosphorus and potassium in plants
GB 12031-1989 Determination of total phosphorus pentoxide content in detergents - quinoline phosphomolybdate gravimetric method
ZB X 66037-1987 total acid assay
GB/T 8306-1987 Determination of total ash in tea
NY/T 82.8-1988 Determination of total ash

American Society for Testing and Materials (ASTM), Determination 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 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 UOP432-65T Total Nitrogen in Liquefied Petroleum Gases by Acid Extraction-Kjeldahl Procedure
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 D5475-93(1997) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
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 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

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

DB32/T 4541-2023 Sea water quality evaluation guide for total nitrogen and total phosphorus

HU-MSZT, Determination of total nitrogen and total phosphorus

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

GB/T 10209.1-2001 Determination of total nitrogen content for monoammonium phosphate and diammonium phosphate(Titrimetric method after distillation)
GB/T 10511-1989 The determination of total nitrogen content for nitrophosphate titrimetric method after distillation
GB/T 10511-2008 Determination of tatal nitrogen content for nitrophosphate.Titrimetric method after distillation
GB/T 10209.1-2008 Determination of monoammonium phosphate and diammonium phosphate.Part 1:Total nitrogen content
GB 6913.3-1986 Determination of Phosphate Total Phosphate
GB 6913.2-1986 Determination of Phosphate Total Inorganic Phosphate
GB/T 2441.1-2001 Determination of urea-Determination of total nitrogen content
GB/T 9695.4-1988 Meat and meat products--Method for determination of total phosphorus
GB/T 9695.4-2009 Meat and meat products.Determination of total phosphorus
GB/T 9823-1988 Method for determination of total nitrogen content in oilseed residues
GB/T 609-1988 Chemical reagent--General method for the determination of total nitrogen
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 6437-2002 Determination of phosphorus in feed--Spectphotometry
GB/T 22427.11-2008 Starches and derived products.Determination of total phosphorus content
GB/T 2441.1-2008 Determination of urea.Part 1:Total nitrogen content
GB/T 11893-1989 Water quality--Determination of total phosphorus--Ammonium molybdate spectrophotometric method
GB/T 12092-1989 Method for determination of total phosphorus content in starches and derived products
GB/T 23835.12-2009 Lithium perchlorate anhydrous.Part 12:Determination of total nitrogen content
GB/T 17767.1-1999 Determination of total nitrogen content for organic-inorganic compound fertilizers
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 41965-2022 Photography—Processing waste—Determination of total amino nitrogen(microdiffusion Kjeldahl method)
GB/T 17767.2-1999 Determination of total phosphorus content for organic-inorganic compound fertilizer
GB/T 9823-2008 Inspection of grain and oils.Determination of total nitrogen content in plant oilseeds residues
GB/T 6913.3-1986 Methods for analysis of water for boiler and for cooling--The determination of phosphates--Total phosphate
GB/T 9984.2-2004 Sodium tripolyphosphate for industrial use-Determination of total phosphorus(v)oxide content-Quinoline phosphomolybdate gravimetric method
GB/T 9984.2-1988 Sodium tripolyphosphate for industrial use--Determination of total phosphorus pentoxide content--Quinoline phosphomolybdate qravimetric method
GB/T 12031-1989 Determination of total phosphorus pentoxide content in detergents--Quinoline phosphomolybdate gravimetric 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 6913.2-1986 Methods for analysis of water for boiler and for cooling--The determination of phosphates--Total inorganic phosphates
GB/T 22105.1-2008 Soil quality.Analysis of total mercury,arsenic and lead contents.Atomic fluorescence spectrometry.Part 1:Analysis of total mercury contents in soils
GB/T 22105.2-2008 Soil quality.Analysis of total mercury,arsenic and lead contents.atomic fluorescence spectrometry.Part 2:Analysis of total arsenic contents in soils
GB/T 22105.3-2008 Soil quality.Analysis of total mercury,arsenic and lead contents.Atomic fluorescence spectrometry.Part3:Analysis of total lead contents in soils
GB/T 17767.1-2008 Determination of organic-inorganic compound fertilizers.Part 1:Total nitrogen content
GB 9170-1988 Determination method of total nitrogen content in lubricating oil and fuel oil (improved Kjeldahl method)
GB/T 9170-1988 Lubricating oils and fuel oils--Determination of total nitrogen--Modified kjeldahl method
GB/T 30157-2013 Textiles.Determination of total content of lead and cadmium
GB/T 17767.2-2010 Determination of organic-inorgnaic compound fertilizers-Part2:Total phosphorus content
GB/T 24583.5-2009 Vanadium-Nitrogen alloy.Determination of phosphorus content.The bismuth molybdenum blue spectrophotometry method
GB/T 6730.24-1986 Methods for chemical analysis of iron ores--The arsenazo 3 photometric method for the determination of rare earth elements content
GB/T 11894-1989 Water quality--Determination of total nitrogen--Alkaline potassium persulfate digestion-UV spectro photometric method
GB/T 8306-2002 Tea--Determination of total ash content
GB/T 8306-2013 Tea.Determination of total ash content

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

T/QAS 071-2021 Determination of total nitrogen in brine Kjeldahl method
T/CIMA 0040-2021 Rapid determination of total phosphorus in water
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

CZ-CSN, Determination of total nitrogen and total phosphorus

CSN 68 4124-1980 Determination of small mounts of total nitrogen
CSN 65 1069-1981 Determination of total hosphorus pentoxide
CSN ISO 6676:1992 Acid-grade fluorspar - Determination of total phosphorus content - Molybdophosphate photometric method
CSN 65 4836-1983 Minerál fertilizers Methode for determination of total nitrogen content
CSN 46 7092-11-1998 Testing methods for feeding stuffs - Part 11: Determination of total phosphorus content
CSN ISO 9438:1992 Metallurgical-grade fluorspar - Determination of total phosphorus content - Reduced molybdophosphate spectrometric method
CSN 65 1025 Cast.10-1989 Sulphuric acid for industrial use. pectrophotometric method for the etermination of total nitrogen xides
CSN 58 0703-7-1999 Testing methods of dehydrated products and seasonings - Part 7: Determinaton of total nitrogen
CSN 83 0540 Cast.13-1984 Chemical and physical analysis of waste water Determination of organic and total nitrogen
CSN 72 0118-1973 Determination of total sulphur
CSN 68 1155-1994 Testing methods for surfactants and detergents. Determination of total phosphorus oxide content

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

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

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

NF V04-211:1971 MILK. DETERMINATION OF TOTAL NITROGEN CONTENT. (KJELDAHL METHOD).
NF EN 15478:2009 Engrais - Détermination de l'azote total dans l'urée
NF U42-147*NF EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrate
NF U42-416*NF EN 15478:2009 Fertilizers - Determination of total nitrogen in urea.
NF V04-406:1992 Meat and meat products. Determination of total phosphorus content.
NF U42-151:1984 Fertilizers. Determination of total nitrogen content. Titrimetric method after distillation.
NF A06-555:2010 Steel - Determination of nitrogen content - Spectrophotometric method.
NF ISO 20620:2022 Engrais et amendements - Détermination de l'azote total par combustion
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 15561:2009 Engrais - Dosage de l'azote total dans la cyanamide calcique nitratée
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 X33-024*NF EN 14672:2005 Characterization of sludges - Determination of total phosphorus
NF X34-117*NF EN ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen
NF U42-504*NF ISO 20620:2022 Fertilizers and soil conditioners - Determination of total nitrogen by combustion
NF EN ISO 16948:2015 Biocombustibles solides - Détermination de la teneur totale en carbone, hydrogène et azote
NF EN 15560:2009 Engrais - Dosage de l'azote total dans la cyanamide calcique exempte de nitrate
NF T73-282*NF EN 13716:2002 Surface active agents - Determination of total base nitrogen - Potentiometric titration.
NF EN 13716:2002 Agents de surface - Détermination de la teneur en azote total basique - Titrage potentiométrique
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 Lait - Détermination de la teneur en phosphore total - Méthode par spectrométrie d'absorption moléculaire
NF X31-418*NF ISO 13878:1998 Soil quality. Determination of total nitrogen content by dry combustion ("elemental analysis").
NF T20-295:1968 CHEMICAL ANALYSIS OF SULPHURIC ACID AND OLEUM. DETERMINATION OF TOTAL NITROGEN.
NF T20-476:1973 Phosphoric acid for industrial use. Determination of total phosphoric pentoxide content. Gravimetric method using quinoline phosphomolybdate.
NF T90-236*NF EN ISO 20236:2021 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion
NF EN ISO 20236:2021 Qualité de l'eau - Dosage du carbone organique total (COT), carbone organique dissous (COD), azote lié total (TNb) et azote lié dissous (DNb) après combustion catalytique oxydante à haute température
NF V03-613*NF EN ISO 3946:1994 Starches and derived products. Determination of total phosphorus content. Spectrophotometric method.
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 V04-284*NF ISO 2962:2010 Cheese and processed cheese products - Determination of total phosphorus content - Molecular absorption spectrometric method
NF X34-117:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods.
NF U42-146*NF EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free.
NF ISO 13878:1998 Qualité du sol - Détermination de la teneur totale en azote par combustion sèche ("analyse élémentaire")
NF EN 15750:2010 Engrais - Détermination de la teneur en azote total des engrais ne contenant l'azote que sous forme nitrique, ammoniacale et uréique, selon deux méthodes différentes
NF T20-486:1973 SODIUM TRIPOLYPHOSPHATE AND PYROPHOSPHATE FOR INDUSTRIAL USE ; DETERMINATION OF TOTAL PHOSPHORIC PENTOXIDE ; GRAVIMETRIC METHOD USING QUINOLINE PHOSPHOMOLYBDATE.
NF EN ISO 13395:1996 Qualité de l'eau - Détermination de l'azote nitreux et de l'azote nitrique et de la somme des deux par analyse en flux (CFA et FIA) et détection spectrométrique
NF T60-304:1976 Soaps. Determination of the total alkali and total fat contents.
NF V04-284:1985 Cheese and processed cheese products. Determination of total phosphorus content. Molecular absorption spectrometric method.
NF ISO 2962:2010 Fromages et fromages fondus - Détermination de la teneur en phosphore total - Méthode par spectrométrie d'absorption moléculaire

RO-ASRO, Determination of total nitrogen and total phosphorus

SR 8379-9-1997 Superfosphate - Total phosphore content determination
STAS 6182/38-1975 WINE Determination of to- tal phosphorus
STAS 8379/9-1981 SUPERPHOSPHATE Determination of total phosphon content
STAS SR 4895-5-1997 Tobacco and tobacco products. Determination of total nitrogen content
SR ISO 5315:1984 Fertilizers. Determination of totai nitrogen content.Titrimetric method after distilation
STAS 11624/4-1983 PHOSPHATING SOLUTIONS Total and free acidity determination
STAS 9952/7-1990 Milk and milk products. Phosphor total content determination of cheese
STAS 9029-1986 DRESSED LEATHERS Determination of total nitrogen and hide snbstance
STAS 11624/1-1983 PHOSPHATING SOLUTIONS Determination of phosphoric acid, azotic acid and sodiimi nitrate
STAS SR 13325-1995 Animal feeding stuffs - Determination of total nitrogen content and calculation of crude protein content
STAS SR ISO 9874:1994 Milk-Determination o total phosphorus content - Method using molecular absorption spectrometry

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

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 10671.4-2016 Reagents. Methods for determination of total nitrogen impurity
GOST EN 15478-2013 Fertilizers. Determination of total nitrogen in urea
GOST 9794-2015 Meat products. Methods for the determination of total phosphorus content
GOST R 51473-1999 Milk. Spectrometric method for determination of total phosphorus content
GOST 31584-2012 Milk. Spectrophotometric method for determination of total phosphorus content
GOST 31980-2012 Milk. Spectrometric method for determination of total phosphorus content
GOST 26107-1984 Soils. Methods for determination of total nitrogen
GOST 28902-1991 Animal feeding stuffs. Determination of total phosphorus content. Spectrophotometric method
GOST 24596.3-1981 Feed phosphates. Methods for determination of nitrogen
GOST 30181.3-1994 Mineral fertilizers. Method for determination of mass fraction of nitrogen in fertilizers with nitrate nitrogen
GOST 26261-1984 Soils. Methods for determining total phosphorus and total potassium
GOST EN 15560-2013 Fertilizers. Determination of total nitrogen in calcium cyanamide nitrate free
GOST EN 15561-2013 Fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates
GOST 29302-1992 Ammonium nitrate for industrial use. Method for determination of total nitrogen content (titrimetric) after distillation
GOST 24596.3-2015 Feed phosphates. Method for determination of nitrogen
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 EN 15750-2016 Fertilizers. Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
GOST R 51482-1999 Meat and meat products. Spectrophotometric method for determination of total phosphorus content
GOST 32009-2013 Meat and meat products. Spectrophotometric method for determination of total phosphorous content
GOST 32459-2013 White phosphorus. Determination in water by gas chromatography with nitrogen-phosphorus detector

GOSTR, Determination of total nitrogen and total phosphorus

GOST R 58596-2019 Soils. Methods for determination of total nitrogen

PL-PKN, Determination of total nitrogen and total phosphorus

PN C04576 ArkusZ12-1973 Water and waste water Tests for nitrogenDetermination of total nitrogen of Kjeldahl
PN C04537-09-1991 Water and waste water Tests for phosphates Determination of total phosphorus
PN C04576 ArkusZ14-1973 Water and w?sie water Tes?s for nitrogen Calcula?ion of to?al nitrogen

German Institute for Standardization, Determination 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 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 14672:2005-10 Characterization of sludges - Determination of total phosphorus; German version EN 14672:2005
DIN EN 14672:2005 Characterization of sludges - Determination of total phosphorus; English version of DIN EN 14672
DIN EN 13716:2003-05 Surface active agents - Determination of total base nitrogen - Potentiometric titration; German version EN 13716:2001
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 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; English version of DIN EN 15560:2009-06
DIN ISO 11261:1997 Soil quality - Determination of total nitrogen - Modified Kjeldahl method (ISO 11261:1995)
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 13716:2003 Surface active agents - Determination of total base nitrogen - Potentiometric titration; German version EN 13716:2001
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 15561:2021 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German and English version prEN 15561:2021
DIN EN 15561:2021-12 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German and English version prEN 15561:2021 / Note: Date of issue 2021-11-05*Intended as replacement for DIN EN 15561 (2009-06).
DIN EN 15561:2009-06 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German version EN 15561:2009 / Note: To be replaced by DIN EN 15561 (2021-12).
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 10324:1990-12 Determination of the total phosphorus content of cheese and processed cheese; spectrometric method
DIN EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; English version of DIN EN 15561:2009-06
DIN CEN/TS 15561:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German version CEN/TS 15561:2007
DIN CEN/TS 15560:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German version CEN/TS 15560:2007
DIN ISO 13878:1998 Soil quality - Determination of total nitrogen content by dry combustion ("elemental analysis") (ISO 13878:1998)
DIN 51732:2014-07 Testing of solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
DIN EN 15560:2009-06 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German version EN 15560:2009 / Note: To be replaced by DIN EN 15560 (2021-12).
DIN EN ISO 20236:2023 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN) and dissolved bound nitrogen (DN) after high temperature catalytic oxidative combustion (ISO 20236:2018)
DIN ISO 3946:1986 Starches and derived products; determination of the total phosphorus content; spectrophotometric method; identical with ISO 3946, edition 1982
DIN EN 16168:2012-11 Sludge, treated biowaste and soil - Determination of total nitrogen using dry combustion method; German version EN 16168:2012
DIN ISO 14255:1998-11 Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant (ISO 14255:1998)
DIN EN 15560:2023-10 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German version EN 15560:2023
DIN EN ISO 20236:2023-10 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN<(Index)b>) and dissolved bound nitrogen (DN<(Index)b>) after high temperature catalytic oxidative combustion (ISO/DIS 2023...

NL-NEN, Determination 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

VN-TCVN, Determination of total nitrogen and total phosphorus

TCVN 6498-1999 Soil quality.Determination of total nitrogen.Modifierd Kejldahl method
TCVN 5265-1990 Bee products.Determination of total nitrogen content
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 6271-2007 Milk.Determination of total phosphorus content.Method using molecular absorption spectrometry
TCVN 7141-2002 Meat and meat products.Determination of total phosphorus content.Spectrometric method
TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
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 6643-2000 Soil quality.Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant

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

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

Indonesia Standards, Determination of total nitrogen and total phosphorus

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 4146-2013
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

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

BS EN 15478:2009 Fertilizers - Determination of total nitrogen in urea
BS EN 14672:2005 Characterization of sludges - Determination of total phosphorous
BS EN 14672:2005(2006) Characterization of sludges - Determination of total phosphorous
BS 7755-3.7:1995 Soil quality. Chemical methods. Determination of total nitrogen. Modified Kjeldahl method
BS ISO 23776:2021 Meat and meat products. Determination of total phosphorous content
BS ISO 6851:2001 Photography. Processing waste. Determination of total amino nitrogen (microdiffusion 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 Ammonium nitrate - Method for determination of total nitrogen content
BS ISO 20620:2021 Fertilizers and soil conditioners. Determination of total nitrogen by combustion
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 EN 13716:2002 Surface active agents - Determination of total base nitrogen - Potentiometric titration
20/30400319 DC BS ISO 23776. Meat and meat products. Determination of total phosphorous content
DD CEN/TS 15561:2007 Fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates
BS EN 15561:2023 Inorganic fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates
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 ISO 9874:2006 Milk - Determination of total phosphorus content - Method using molecular absorption spectrometry
BS ISO 29541:2010 Solid mineral fuels. Determination of total carbon, hydrogen and nitrogen content. Instrumental method
21/30442090 DC BS EN 15561. Fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates
BS EN ISO 20236:2021 Water quality. Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN_b) and dissolved bound nitrogen (DN_b) after high temperature catalytic oxidative combustion
BS DD CEN/TS 15560:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
BS DD CEN/TS 15561:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
BS EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
BS EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
BS EN 15104:2011 Solid biofuels. Determination of total content of carbon, hydrogen and nitrogen. Instrumental methods
20/30419338 DC BS EN ISO 20620. Fertilizers and soil conditioners. Determination of total nitrogen by combustion
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 ISO 17812:2007 Paper, board and pulps - Determination of total magnesium, total calcium, total manganese, total iron and total copper
BS ISO 6851:2002 Photography - Processing waste - Determination of total amino nitrogen (microdiffusion Kjeldahl method)
DD ISO/TS 12902:2002 Solid mineral fuels. Determination of total carbon, hydrogen and nitrogen. Instrumental methods
BS EN ISO 7393-3:2000 Water quality. Determination of free chlorine and total chlorine. Iodometric titration method for the determination of total chlorine
BS 3762-3.19:1983 Analysis of formulated detergents. Quantitative test methods. Method for determination of total phosphorus (V) oxide content

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

EN 15478:2009 Fertilizers - Determination of total nitrogen in urea
EN 15750:2009 Fertilizers - Determination of total 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 15560:2023 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
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 ISO 3946:1994 Starches and Derived Products - Determination of Total Phosphorous Content - Spectrometric Method (ISO 3946:1982)
EN ISO 20236:2021 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion (ISO 20236:2018)
EN ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (ISO 16948:2015)
EN 15104:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
EN 15561:2023 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
prEN ISO 20236:2021 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion (ISO 20236:2018)
EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free

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

PD CEN/TS 15478:2006 Fertilizers - Determination of total nitrogen in urea
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
PD CEN/TS 15104:2005 Solid biofuels - Determination of total content of carbon@ hydrogen and nitrogen - Instrumental methods

Danish Standards Foundation, Determination of total nitrogen and total phosphorus

DS/EN 15478:2009 Fertilizers - Determination of total nitrogen in urea
DS/EN 14672:2005 Characterization of sludges - Determination of total phosphorus
DS 223:1991 Water analysis. Determination of the sum of nitrite- and nitrate-nitrogen
DS/EN 13342:2001 Characterisation of sludges - Determination of total Kjeldahl nitrogen
DS/EN 13716:2002 Surface active agents - Determination of total base nitrogen - Potentiometric titration
DS/EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
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 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
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 ISO 3946:1995 Starches and derived products - Determination of total phosphorus content - Spectrophometric method

Lithuanian Standards Office , Determination of total nitrogen and total phosphorus

LST EN 15478-2009 Fertilizers - Determination of total nitrogen in urea
LST EN 14672-2005 Characterization of sludges - Determination of total phosphorus
LST EN 13716-2002 Surface active agents - Determination of total base nitrogen - Potentiometric titration
LST EN 15560-2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
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 15561-2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
LST EN 15104-2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
LST EN ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (ISO 16948:2015)
LST ISO 4313:2005 Washing powders. Determination of total phosphorus(V) oxide content. Quinoline phosphomolybdate gravimetric method (idt ISO 4313:1976)
LST ISO 2294:2000 Meat and meat products. Determination of total phosphorus content (Reference method) (idt ISO 2294:1974(E))
LST ISO 13730:2002 Meat and meat products. Determination of total phosphorus content. Spectrometric method (identical ISO 13730:1996)

AENOR, Determination of total nitrogen and total phosphorus

UNE-EN 15478:2009 Fertilizers - Determination of total nitrogen in urea
UNE-EN 14672:2006 Characterization of sludges - Determination of total phosphorus
UNE 77318:2001 Soil quality. Determination of total nitrogen. Modified Kjeldahl method.
UNE-EN 13716:2002 Surface active agents - Determination of total base nitrogen - Potentiometric titration.
UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).
UNE-EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
UNE-EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
UNE-EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
UNE 55527:1979 SURFACE ACTIVE AGENTS. WASHING POWDERS. DETERMINATION OF TOTAL PHOSPHORUS (V) OXIDE CONTENT. QUINOLINE PHOSPHOMOLYBDATE METHOD
UNE 77325:2003 Soil quality. Determination of total nitrogen content by dry combustion ("elemental analysis").
UNE 77306:1999 SOIL QUALITY. DETERMINATION OF NITRATE NITROGEN, AMMONIUM NITROGEN AND TOTAL SOLUBLE NITROGEN IN AIR-DRY SOIL USING CALCIUM CHLORIDE SOLUTION AS EXTRACTANT.

Korean Agency for Technology and Standards (KATS), Determination 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 M ISO 6851-2002(2017) Photography－Processing waste－Determination of total amino nitrogen－Microdiffusion Kjeldahl method
KS M ISO 6851:2002 Photography-Processing waste-Determination of total amino nitrogen-Microdiffusion Kjeldahl method
KS M ISO 4313:2003 Washing powders－Determination of total phosphorus(V) oxide content－Quinoline phosphomolybdate gravimetric method
KS H ISO 1871-2013(2018) Agricultural food products ― General directions for the determination of nitrogen by the Kjeldahl method
KS M ISO 16948:2021 Solid biofuels — Determination of total content of carbon, hydrogen and nitrogen
KS I ISO 15681:2014 Water quality — Determination of orthophosphate and total phosphorus contents by flow analysis(FIA and CFA)
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 M ISO 6851-2002(2022) Photography－Processing waste－Determination of total amino nitrogen－Microdiffusion Kjeldahl method
KS M ISO 4313-2003(2018) Washing powders－Determination of total phosphorus(V) oxide content－Quinoline phosphomolybdate gravimetric 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 17812:2020 Paper, board and pulps — Determination of total magnesium, total calcium, total manganese, total iron and total copper
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 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 3706-2017(2022) Phosphoric acid for industrial use(including foodstuffs) — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
KS M ISO 3357-2017(2022) Sodium tripolyphosphate and sodium pyrophosphate for industrial use — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
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
KS H ISO 3946:2008 Starches and derived products－Determination of total phosphorus content－Spectrophotometric method
KS M ISO 15672:2007 Rubber and rubber additives－Determination of total nitrogen content using an automatic analyser
KS M ISO 15672-2007(2017) Rubber and rubber additives－Determination of total nitrogen content using an automatic analyser
KS I ISO 13395-2008(2018) Water quality－Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
KS M ISO 15672-2007(2022) Rubber and rubber additives－Determination of total nitrogen content using an automatic analyser
KS I ISO 14255:2009 Soil quality－Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
KS I ISO 14255-2009(2019) Soil quality－Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
KS H ISO 2962:2021 Cheese and processed cheese products — Determination of total phosphorus content — Molecular absorption spectrometric method
KS H ISO 9874-2006(2016) Milk -- Determination of total phosphorus content -- Method using molecular absorption spectrometry
KS M ISO 17812:2009 paper, board and pulps－Determination of total magnesium, total calcium, total manganese, total iron and total copper

国家市场监督管理总局、中国国家标准化管理委员会, Determination 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
GB/T 39544-2020 Natural rubber latex concentrate—Determination of total phosphate content—Spectrophotometric method
GB/T 39356-2020 Determination of total nickel,total cobalt,total selenium, total vanadium, total stibium,total thallium in fertilizers — Inductively coupled plasma optical emission spectroscopy
GB/T 24583.5-2019 Vanadium-nitrogen—Determination of phosphorus content—Bismuth molybdenum blue spectrophotometric method

YU-JUS, Determination of total nitrogen and total phosphorus

JUS H.B8.288-1983 Fertilizers. Determination of content total-nitrogen. Volumetric 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.G8.055-1983 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.G8.104-1984 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 E.Z8.016-1993 Soups,broaths,sauces and seasonings - Determination of total nitrogen content
JUS H.G8.447-1990 Reagents. Zine sulphate heptahydrate. Determination of total nitrogen content. Colorimetric method
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.G8.298-1987 Reagents. Oxaiic acid dihydrate. Determination of total nitrogen content. Colorimetric metbod
JUS H.G8.261-1987 Reagents. Barium chloride dihydrate. Determination of total nitrogen content. Colorimetric method
JUS H.G8.064-1983 Reagents. Copper sulphate pentahydrate. Determination of total nitrogen content. Colorimetric method
JUS H.G8.280-1987 Reagents. lron(ll)sulphate heptahydrate. 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.B8.432-1983 High-grade fluorspar and acid-grade fluorspar for industrial use. Determination of total phosphorus content. Molybdophosphate photometric method

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

HG/T 5669-2019 Determination of total nitrogen in textile dyeing and finishing auxiliaries
YB/T 4582.3-2017 Determination of phosphorus content in silicon iron nitride bismuth phosphorus molybdenum blue spectrophotometry
YB/T 4566.6-2016 Determination of phosphorus content in vanadium iron nitride bismuth phosphorus molybdenum blue spectrophotometry

Professional Standard - Coal, Determination 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

Japanese Industrial Standards Committee (JISC), Determination 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

SE-SIS, Determination 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
SIS SS 02 81 33-1991 Determination of the sum of the nitrite and nitrate nitrogen content of water

Hebei Provincial Standard of the People's Republic of China, Determination 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)

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

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

PT-IPQ, Determination of total nitrogen and total phosphorus

NP 3646-1987
NP 1612-2002 Meat and meat products Determination of nitrogen content Reference method

Professional Standard - Urban Construction, Determination 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/T 3018.9-1993 Leachate.Determination of total phosphorus.Spectrophotometric molybdovanadophosphate method
CJ 26.27-1991 Municipal sewage water quality inspection method standard Determination of total nitrogen Titration method after distillation

NO-SN, Determination 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
NS 4865-1983 Air quality - Determination of the sum of nitrite- and nitrate-nitrogen in precipitation

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

DB23/T 3310-2022 Water quality total nitrogen monitoring technical specification

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

SN/T 3808-2014 Determination of total phosphorus content in diammonium phosphate.X-ray fluorescence spectrometry
SN/T 3097-2012 Determination of total nitrogen in fertelezers.Combustion
SN/T 3793-2014 Determination of total phosphorus, potassium content in compound fertilizers.X-ray fluorescence spectrometry

AT-ON, Determination of total nitrogen and total phosphorus

ONORM L 1095-2002 Chemical analyses of soils - Determination of total nitrogen by dry combustion
ONORM ISO 4313:1986 Washing powders; determination of total phosphorus(V)-oxide content; quinoline phosphomolybdate gravimetric method
ONORM S 7009-1982 Testing of leather; determination of the contents of total nitrogen and of ammonium salts; calculation of hide substance
ONORM DIN 10324-1993 Determination of the total phosphorus content of cheese and processed cheese - Spectrometric method
OENORM EN ISO 20236:2021 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion (ISO 20236:2018)

BE-NBN, Determination 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 T 03-056-1979 Ammonium nitrate for industrial use - Determination of total nitrogen content - Titrimetric method after distillation
NBN V 21-013-1978 Determination of the total nitrogen contaimng substances content of milk - Amido black method
NBN-EN ISO 3946:1994 Starches and derived products - Determination of total phosphorus content - Spectrophotometric method (ISO 3946:1982)

Taiwan Provincial Standard of the People's Republic of China, Determination 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
CNS 6611-1980 Method of Test for Meat and Meat Products: Determination of Total Phosphorus Content
CNS 14573-2001 Starches and derived products－Determination of total phosphorus content－Spectrophotometric method

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

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

KR-KS, Determination of total nitrogen and total phosphorus

KS M ISO 16948-2021 Solid biofuels — Determination of total content of carbon, hydrogen and nitrogen
KS H ISO 9874-2021 Milk — Determination of total phosphorus content —Method using molecular absorption spectrometry
KS M ISO 17812-2020 Paper, board and pulps — Determination of total magnesium, total calcium, total manganese, total iron and total copper
KS M ISO 3706-2017 Phosphoric acid for industrial use(including foodstuffs) — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
KS H ISO 2962-2021 Cheese and processed cheese products — Determination of total phosphorus content — Molecular absorption spectrometric 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

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

BS 4267-2:1988(1999) Ammonium nitrate — Part 2 : Method for determination of total nitrogen content
BS EN ISO 3946:1994(2000) Starches and derived products — Determination oftotal phosphorous content — Spectrometric method
BS EN ISO 20236:2021(2022) Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative 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 EN ISO 13395:1996(1998) Water quality — Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection

Professional Standard - Tobacco, Determination 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

ES-UNE, Determination 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 ISO 20236:2022 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion (ISO 20236:2018)

CU-NC, Determination 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

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

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

PH-BPS, Determination of total nitrogen and total phosphorus

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

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

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

AR-IRAM, Determination of total nitrogen and total phosphorus

IRAM 12 030-1963

Professional Standard - Chemical Industry, Determination of total nitrogen and total phosphorus

HG/T 3540-2011 Industrial circulating cooling water.Determination of total phosphate

Professional Standard - Environmental Protection, Determination 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 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
HJ/T 199-2005 Water quality Determination of tota-nitrogen Gas-phase molecular absorption spectrometry
HJ 667-2013 Water quality.Determination of total nitrogen by continuous flow analysis (CFA) and N-(1-naphthyl)ethylene diamine dihydrochloride spectrophotometry
HJ 668-2013 Water quality.Determination of total nitrogen by flow injection analysis (FIA) and N-(1-naphthyl)ethylene diamine dihydrochloride spectrophotometry
HJ 636-2012 Water quality.Determination of total nitrogen.Alkaline potassium persulfate digestion UV spectrophotometric method

Henan Provincial Standard of the People's Republic of China, Determination 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

Canadian Standards Association (CSA), Determination of total nitrogen and total phosphorus

CAN/CSA-ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (First Edition)

IN-BIS, Determination of total nitrogen and total phosphorus

ZA-SANS, Determination of total nitrogen and total phosphorus

SANS 12902:2007 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods

Shandong Provincial Standard of the People's Republic of China, Determination 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

Association of German Mechanical Engineers, Determination of total nitrogen and total phosphorus

VDI 2456-2004 Stationary source emissions - Reference method for determination of the sum of nitrogen monoxide and nitrogen dioxide - Ion chromatography method

Professional Standard - Aviation, Determination 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