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Determination method of total nitrogen in feed

Determination method of total nitrogen in feed, Total:499 items.

In the international standard classification, Determination method of total nitrogen in feed involves: Animal feeding stuffs, Fertilizers, Organic chemicals, Lubricants, industrial oils and related products, Milk and milk products, Water quality, External water conveyance systems, Farming and forestry, Edible oils and fats. Oilseeds, Vocabularies, Analytical chemistry, Non-ferrous metals, Coals, Fuels, General methods of tests and analysis for food products, Soil quality. Pedology, Petroleum products in general, Microbiology, Ferrous metals, Veterinary medicine, Inorganic chemicals, Beverages, Refractories, Air quality, Protection against fire, Metalliferous minerals, Food products in general, Sugar. Sugar products. Starch, Crude petroleum, Tobacco, tobacco products and related equipment, Products of the textile industry, Ferroalloys.

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

GB/T 13093-1991 Method for determination of aerobic bacterial count in feeds
GB 13093-1991 Method for determiantion of aerobic bacterial count in feeds
GB/T 13079-1999 Determination of total arsenic in feeds
GB/T 13079-2006 Determination of total arsenic in feeds
GB/T 13079-2022 Determination of total arsenic in feeds
GB/T 21318-2009 Determination of total nirogen content in animal feeding stuffs by combustion according to the Dumas principle and calculation o the crude protein content
GB/T 24318-2009 Determination of total nitrogen content in animal feeding stuffs by combustion according to the Dumas principle and calculation of the crude protein content
GB/T 32141-2015 Determination of the total volatile basic nitrogen in feed
GB/T 6437-2002 Determination of phosphorus in feed--Spectphotometry
GB/T 42491-2023 Determination of total starch content in feed by enzymatic method
GB/T 13883-1992 Method for the determination of selenium in feedstuffs.(DAN) fluorometrt
GB/T 13080-1991 Method for determination of lead in feeds
GB/T 13081-1991 Method for determination of mercury in feeds
GB/T 13082-1991 Method for determination of cadmium in feeds
GB/T 13088-1991 Method for determination of chromium in feeds
GB 13082-1991 Determination method of cadmium in feed
GB/T 13092-2006 Enumeration of molds count in feeds
GB/T 13093-2006 Examination of bacterial count in feeds
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 13084-1991 Method for determination of glycosidic hydrocyanic acid in feeds
GB 13084-1991 Determination method of cyanide in feed
GB/T 2441.1-2001 Determination of urea-Determination of total nitrogen content
GB/T 13085-1991 Method for determination of nitrite in feeds
GB/T 13086-1991 Method for determination of free gossypol in feeds
GB/T 6434-1994 Method for determination of crude fiber in feedstuffs
GB/T 6432-1994 Method for the determination of crude protein in feedstuffs
GB/T 9823-1988 Method for determination of total nitrogen content in oilseed residues
GB/T 19227-2008 Determination of nitrogen in coal
GB/T 30728-2014 Determination of nitrogen in solid biofuels
GB/T 8381-1987 The method of determination of aflatoxin B1 in feedstuff
GB/T 13087-1991 Method for determination of isothiocyanates in feeds
GB 13087-1991 Determination method of isothiocyanate in feed
GB/T 13089-1991 Method for determination of oxazolidinethione in feeds
GB/T 17816-1999 Determination of total ascorbic acid in feeds--o-Phenylenediamine fluorometry
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 17767.1-1999 Determination of total nitrogen content for organic-inorganic compound fertilizers
GB/T 13884-1992 Method for the determination of cobalt in feedstuffs—Atomic absorption spectroscopy
GB/T 6435-1986 Method for the determination of moisture in feedstuffs
GB/T 17776-2016 Determination of sulfur in feedstuff.Magnesium nitrate method
GB/T 17776-1999 Determination of sulfur in feedstuff--Magnesium nitrate method
GB/T 3597-2002 Fertilizer--Determination of nitrate nitrogen content--Nitron gravimetric method
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 15400-1994 Determination of tryptophan in feedstuffs--Spectrophotometry
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 2441.1-2008 Determination of urea.Part 1:Total nitrogen content
GB/T 12143.2-1989 Determination method for amino nitrogen content in fruit and vegetable juice beverages--Formol number
GB/T 8381.2-2005 Determination of Shigella in feeds
GB/T 13091-2002 Determination of salmonella in feeds
GB/T 17767.1-2008 Determination of organic-inorganic compound fertilizers.Part 1:Total nitrogen content
GB/T 18633-2018 Determination of potassium in feeds.Flame photometry
GB/T 18633-2002 Determination of potassium in feed flame photometric method
GB/T 17777-2009 Determination of molybdenum in feeds-Spectrophotometry
GB/T 17777-1999 Determination of molybenum in feedstuff--Spectrophotometry
GB 12143.2-12143.3-89 Determination method for amino nitrogen content in fruit and vegetable juice beverages-Formol number Determination method for L-ascorbic acid in fruit and vegetable juice beverages-Ethyl ether extract
GB/T 3600-2000 Fertilizers-Determination of ammoniacal nitrogen content-Formaldehyde method
GB/T 13085-2005 Determination of nitrite in feeds-Method using colorimetric analysis
GB/T 27985-2011 Determination of tannin in feeds.Spectrophotometry
GB/T 20194-2006 Animal feeding stuffs--Determination of starch content--Polarimetric method
GB/T 13885-1992 Method for the determination of the iron、copper、manganese、zinc and magnesium in feedstuffs—Atomic absorption spectroscopy
GB/T 12456-1990 Method for determination of total acid in foods
GB/T 23869-2009 Method for determination of the total mercury in pollen
GB/T 22923-2008 Determination of nitrogen,phosphorus and potassium for fertilizers by auto analyzer
GB/T 13884-2018 Determination of cobalt in feeds.Atomic absorption spectrometry
GB/T 13080-2004 Determination of lead in feeds Method using atomic absorption spectrometry
GB/T 13884-2003 Determination of cobalt in feed--Atomic absorption spectroscopy
GB/T 23710-2009 Determination of betaine in feeds.Ion chromatography
GB/T 8381.9-2005 Determination of Choramphenicol in Feeds Gas Chromatography
GB/T 6434-2006 Feeding stuffs.Determination of crude fiber content.Method with intermediate filtration
GB/T 3595-2000 Fertilizers-Determination of ammoniacal nitrogen content-Titrimetric method after distillation
GB/T 23772-2009 Inorganic chemicals for industrial use.General method for the determination of total nitrogen content.Nessler's reagent colorimetric method
GB/T 21101-2007 Identification of porcine derived materials in animal-originated feedstuffs- PCR method
GB/T 21105-2007 Identification of Canis derived materials in animal-originated feedstuffs-PCR method
GB/T 21106-2007 Identification of Cervus derived materials in animaloriginated feedstuffs-PCR method
GB/T 15399-1994 Determination of sulfur amino acids in feedstuffs--Ion exchange chromatography
GB/T 3598-1983 Fertilizers--Determination of urea nitrogen content--Urease method
GB/T 21542-2008 Determination of enramycin in feeds.Microbiological method
GB/T 13083-2002 Determination of fluorine in feed--Ion selective electrode method
GB/T 8381.8-2005 Determination of Polychlorobiphenyls(PCBs)in Feeds-Gas Chromatography
GB/T 15076.13-1994 Methods for chemical analysis of tantalum and niobium-Determination of nitrogen content in tantalum
GB/T 13598-1992 A method for the determination of agricultural chemical residues containing nitrogenous in tobacco leaves
GB/T 19227-2003 Determination of nitrogen in coal and coke semi-micro gasification method
GB/T 21107-2007 Idemtification of horse and donkey derived materials in animal-originated feedstuffs.PCR method
GB/T 21100-2007 Identification of Camelidae derived materials in animal-originated feedstuffs.PCR method

Group Standards of the People's Republic of China, Determination method of total nitrogen in feed

T/NAIA 001-2020 Determination of ammoniacal nitrogen in fermented feed Kjeldahl method
T/NAIA 060-2021 Determination of true protein in feed 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/SDFA 002.1-2020 Fermented Feed Raw Materials Part 1 Determination of Total Acids - Acid-Base Titration

RU-GOST R, Determination method of total nitrogen in feed

GOST 24596.3-2015 Feed phosphates. Method for determination of nitrogen
GOST R 51423-1999 Feedstuffs, compound feeds, feed raw materials. Method for determination of soluble nitrogen fraction of total mass after treatment with pepsin in dilute hydrochloric acid
GOST R 50466-1993 Fodder, mixed fodder and animal feed raw stuff. Methods of nitrogen and crude protein determination
GOST 24596.3-1981 Feed phosphates. Methods for determination of nitrogen
GOST EN 15478-2013 Fertilizers. Determination of total nitrogen in urea
GOST R 51422-1999 Feedstuffs, compound feeds, feed raw materials. Method for determination of urea fraction of total mass
GOST R 51425-1999 Feedstuffs, compound feeds, feed raw materials. Method for determination of zearalenone fraction of total mass
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 51418-1999 Feedstuffs, compound feeds, feed raw materials. Methods for determination of ash fraction of total mass insoluble in hydrochloric acid
GOST 10671.4-2016 Reagents. Methods for determination of total nitrogen impurity
GOST 30181.3-1994 Mineral fertilizers. Method for determination of mass fraction of nitrogen in fertilizers with nitrate nitrogen
GOST 30181.6-1994 Mineral fertilizers. Method for determination of mass fraction of nitrogen in ammonium salts (in ammonium form, using the formaldehyde method)
GOST 32045-2012 Feeds, compound feeds, material for compound feeds. Methods for determination of ash content, insoluble in hydrochloric acid
GOST 32933-2014 Feeds, compound feeds. Method for determination of crude ash
GOST 32201-2013 Feeds, compound feeds. Method for determination of tryptophan
GOST 32195-2013 Feeds, compound feeds. Method for determination of amino acids
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 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 13496.22-1990 Fodder, mixed fodder, and mixed fodder raw materials. Method for determination of cistinum and metioninum
GOST 30181.8-1994 Mineral fertilizers. Method for determination of mass fraction of ammonium nitrogen in compound fertilizers (chloramine method)
GOST 29113-2016 Feed, feed raw materials. Methods for determination of mass fraction of urea
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 30181.7-1994 Mineral fertilizers. Method for determination of total mass fraction of nitrogen in compound fertilizers (in ammonium and amide forms, using hypochlorite method)
GOST 32904-2014 Feeds, compound feeds. Methods for determination of calcium content titrimetric method
GOST 31482-2012 Mixed feeds. Method for determination of aldehydes
GOST 31674-2012 Feeds, compound feeds, material for compound feeds. Methods for the determination of common toxicity
GOST R 52337-2005 Feeds, compound feeds, material for compounds feeds. Methods for the determination of common toxicity
GOST 27753.8-1988 Greenhouse grounds method for determination of ammonium nitrogen
GOST 13496.18-1985 Mixed fodder and fodder raw stuff. Methods for determination of fat acid value
GOST 32251-2013 Feeds, compound feeds. Method for determination of aflatoxin B1
GOST 28902-1991 Animal feeding stuffs. Determination of total phosphorus content. Spectrophotometric method
GOST 32905-2014 Feeds, mixed feeds and raw material. Method for determination of fat content
GOST 20851.1-1975 Mineral fertilizers. Methods for determination of nitrogen content
GOST 30181.9-1994 Mineral fertilizers. Method for determination of total mass fraction of nitrogen in compound fertilizers (distillation method using the chromium reduction of nitrate nitrogen and mineralization of organic nitrogen)
GOST 24596.11-2015 Feed phosphates. Method for determination of cadmium
GOST 24596.9-2015 Feed phosphates. Method for determination of lead
GOST 24596.10-2015 Feed phosphates. Methods for determination of mercury
GOST 24596.8-2015 Feed phosphates. Methods for determination of arsenic
GOST 24596.4-2015 Feed phosphates. Method for determination of calcium
GOST 24596.2-2015 Feed phosphates. Methods for determination of phosphorus
GOST 24596.7-2015 Feed phosphates. Method for determination of flourine
GOST 13496.17-1995 Forage. Methods for determining carotin
GOST 13496.17-1984 Forage. Method for determination carotin
GOST 13496.2-1991 Fodder mixed fodder and mixed fodder raw material. Method for determination of raw cellular tissue
GOST R 52839-2007 Feeds. Methods for determination of crude fibre content with intermediate filtration
GOST 24230-1980 Vegetable feeds. Methods for determination of digestibility in vitro
GOST R 51417-1999 Feeds, mixed feeds and raw material. Determination of mass fraction of nitrogen and calculation of mass fraction of crude protein. Kjeldahl method
GOST 13496.20-2014 Feeds, mixed feeds and raw material. Method for determining residual quantities of pesticides
GOST 13496.15-2016 Feeds, mixed feeds and raw material. Methods for determining the raw fat content
GOST 13496.15-1985 Forages, compound feeds, raw material. Methods for determining rawfat
GOST 28497-2014 Feeds, compound feeds. Method of crumbling properties granule determination
GOST 31640-2012 Feeds. Methods for determination of dry matter content
GOST R 52838-2007 Feeds. Methods for determination of dry matter content
GOST 24596.6-2015 Feed phosphates. Methods for determination of moisture
GOST 31675-2012 Feeds. Methods for determination of crude fibre content with intermediate filtration
GOST R 50465-1993 Fodder, mixed fodder and animal feed raw stuff. Methods of nitrate and nitrite determination
GOST 30181.1-1994 Mineral fertilizers. Method for determination of total overall mass fraction of nitrogen in compound fertilizers (in ammonium and amide forms, with deammoniation)
GOST 30181.2-1994 Mineral fertilizers. Method for determination of total mass fraction of nitrogen in single - component fertlizers (in ammonium and amide forms, no deammoniation)
GOST 13496.14-1987 Mixed fodder, raw mixed fodder, fodder. Method for determination of ash insoluble in hydrochloric acid
GOST ISO 5983-2-2016 Feeds, compound feeds, feed raw materials. Determination of mass fraction of nitrogen and calculation of mass fraction of crude protein. Part 2. Block digestion and steam distillation method
GOST 26573.1-1993 Premixes. Methods for determination of vitamin A
GOST 27548-1997 Vegetable feeds. Methods for determination of moisture content
GOST 34044-2016 Feeds, compound feeds, feed raw materials. Method for determination of xenobiotics by high performance liquid chromatography-mass spectrometry
GOST R 56058-2014 Feed and feed additives. Methods of identification and determination GMO of plant origin
GOST R 55987-2014 Feeds and raw material for mixed feeds. Method for determination of digestibility of feather meal in vitro
GOST 13496.19-2015 Feeds, mixed feeds and raw material. Methods for determination of nitrate and nitrite
GOST R 52698-2006 Mixed fodders, rawstuff for mixed fodders. Method for determining the residual quantities of chlorine-organic pesticides
GOST 13496.21-1987 Feeds, mixed feeds and raw material. Methods for determining content of lisin and tryptophane

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 in feed

GB/T 6432-2018 Determination of crude protein in feeds—Kjeldahl method
GB/T 6437-2018 Determination of phosphorus in feeds—Spectrophotometry
GB/T 13086-2020 Method for determination of free gossypol in feeds
GB/T 13089-2020 Method for determination of oxazolidinethione in feeds
GB/T 13087-2020 Determination of isothiocyanates in feeds
GB/T 13085-2018 Determination of nitrite in feeds—Colorimetry method
GB/T 13080-2018 Determination of lead in feeds—Atomic absorption spectrometry
GB/T 13083-2018 Determination of fluorine in feeds—Ion selective electrode method
GB/T 20194-2018 Determination of starch in feeds—Polarimetry

German Institute for Standardization, Determination method of total nitrogen in feed

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 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 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 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; English version of DIN EN 15560:2009-06
DIN EN 16006:2011-10 Animal feeding stuffs - Determination of the sum of fumonisin B<(Index)1> and B<(Index)2> in compound animal feed with immunoaffinity clean-up and RP-HPLC with fluorescence detection after pre- or post-column derivatisation; German version ...
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 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 51732:2014-07 Testing of solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
DIN EN 17050:2017-11 Animal feeding stuffs - Methods of sampling and analysis - Determination of iodine in animal feed by ICP-MS; German version EN 17050:2017
DIN EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; English version of DIN EN 15561:2009-06
DIN EN 17050:2017 Animal feeding stuffs - Methods of sampling and analysis - Determination of iodine in animal feed by ICP-MS
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 EN ISO 5983-1 Berichtigung 1:2009-07 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005); German version EN ISO 5983-1:2005, Corrigendum to DIN EN ISO 5983-1:2005-10; German version EN ISO 5983-1:20...
DIN EN ISO 5983-1:2005-10 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005); German version EN ISO 5983-1:2005
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 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 17362:2020 Animal feeding stuffs: Methods of sampling and analysis - Determination of pentachlorophenol (PCP) in feed materials and compound feed by LC-MS/MS
DIN EN 17853:2023-06 Animal feeding stuff - Methods of sampling and analysis - Determination of intact glucosinolates in feed materials and compound feed by LC-MS/MS; German version EN 17853:2023
DIN EN 17362:2020-07 Animal feeding stuffs: Methods of sampling and analysis - Determination of pentachlorophenol (PCP) in feed materials and compound feed by LC-MS/MS; German version EN 17362:2020
DIN EN 17504:2022 Animal feeding stuffs: Methods of sampling and analysis - Determination of gossypol in cotton seed and feeding stuff by LC-MS/MS
DIN EN 17504:2022-05 Animal feeding stuffs: Methods of sampling and analysis - Determination of gossypol in cotton seed and feeding stuff by LC-MS/MS; German version EN 17504:2022
DIN EN 15560:2023-10 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German version EN 15560:2023
DIN EN 17053:2018 Animal feeding stuffs - Methods of sampling and analysis - Determination of trace elements, heavy metals and other elements in feed by ICP-MS (multi-method)
DIN EN 17053:2018-03 Animal feeding stuffs - Methods of sampling and analysis - Determination of trace elements, heavy metals and other elements in feed by ICP-MS (multi-method); German version EN 17053:2018
DIN EN 17462:2020 Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed; German and English version prEN 17462:2019
DIN EN 17462:2021-06 Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed; German version EN 17462:2021
DIN EN 17256:2019-12 Animal feeding stuffs: Methods of sampling and analysis - Determination of ergot alkaloids and tropane alkaloids in feed materials and compound feeds by LC-MS/MS; German version EN 17256:2019

Danish Standards Foundation, Determination method of total nitrogen in feed

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 15478:2009 Fertilizers - Determination of total nitrogen in urea
DS/ISO 1871:2009 Food and feed products - General guidelines for the determination of nitrogen by the Kjeldahl method
DS/EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
DS/EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
DS/EN ISO 15914:2005 Animal feeding stuffs - Enzymatic determination of total starch content
DS/EN ISO 5983-1/AC:2009 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method
DS/EN ISO 5983-1:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method
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 17462:2021 Animal feeding stuffs: Methods of sampling and analysis – Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed

Lithuanian Standards Office , Determination method of total nitrogen in feed

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 15478-2009 Fertilizers - Determination of total nitrogen in urea
LST EN 15560-2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
LST EN 15561-2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
LST EN ISO 15914:2005 Animal feeding stuffs - Enzymatic determination of total starch content (ISO 15914:2004)
LST EN 15104-2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
LST EN ISO 5983-1:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005)
LST EN 17462-2021 Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed

AENOR, Determination method of total nitrogen in feed

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 15478:2009 Fertilizers - Determination of total nitrogen in urea
UNE-EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
UNE-EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).
UNE-EN ISO 15914:2005 Animal feeding stuffs - Enzymatic determination of total starch content (ISO 15914:2004)
UNE-EN ISO 5983-1:2007 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005)

British Standards Institution (BSI), Determination method of total nitrogen in feed

BS EN 15478:2009 Fertilizers - Determination of total nitrogen in urea
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 5551-4.1.3:1986 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of total nitrogen content (titrimetric method after distillation)
BS ISO 15914:2004 Animal feeding stuffs - Enzymatic determination of total starch content
BS 7755-3.7:1995 Soil quality. Chemical methods. Determination of total nitrogen. Modified Kjeldahl method
DD CEN/TS 15560:2007 Fertilizers. Determination of total nitrogen in calcium cyanamide nitrate free
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
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 5766-15:1997 Methods for analysis of animal feeding stuffs. Determination of soluble nitrogen content after treatment with pepsin in dilute hydrochloric acid
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
21/30442090 DC BS EN 15561. Fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates
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 17504:2022 Animal feeding stuffs: Methods of sampling and analysis. Determination of gossypol in cotton seed and feeding stuff by LC-MS/MS
BS ISO 1871:2009 Food and feed products - General guidelines for determination of nitrogen by Kjeldahl method
BS DD CEN/TS 15750:2009 Fertilizers - Determination of different forms of nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
BS EN 17362:2020 Animal feeding stuffs: Methods of sampling and analysis. Determination of pentachlorophenol (PCP) in feed materials and compound feed by LC-MS/MS
20/30396927 DC BS EN 17504. Animal feeding stuffs: Methods of sampling and analysis. Determination of gossypol in cotton seed and feeding stuff by LC-MS/MS
BS EN 17853:2023 Animal feeding stuff: Methods of sampling and analysis. Determination of intact glucosinolates in feed materials and compound feed by LC-MS/MS
19/30376498 DC BS EN 17362. Animal feeding stuffs: Methods of sampling and analysis. Determination of pentachlorophenol (PCP) in feed materials and compound feed by LC-MS/MS
BS 5766-11:1986 Methods for analysis of animal feeding stuffs. Determination of calcium by titration
BS EN 15104:2011 Solid biofuels. Determination of total content of carbon, hydrogen and nitrogen. Instrumental methods
BS 5766-23:2001 Methods for analysis of animal feeding stuffs. Determination of crude fibre content. Method with intermediate filtration
BS EN 17050:2017 Animal feeding stuffs: Methods of sampling and analysis. Determination of iodine in animal feed by ICP-MS
BS EN 17053:2018 Animal feeding stuffs: Methods of sampling and analysis. Determination of trace elements, heavy metals and other elements in feed by ICP-MS (multi-method)
BS EN 17270:2019 Animal feeding stuffs: Methods of sampling and analysis. Determination of theobromine in feed materials and compound feed, including cocoa derived ingredients, by liquid chromatography
BS EN 17462:2021 Animal feeding stuffs. Methods of sampling and analysis. Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
BS 5766-12:1986 Methods for analysis of animal feeding stuffs. Determination of gossypol
BS EN 17256:2019 Animal feeding stuffs: Methods of sampling and analysis. Determination of ergot alkaloids and tropane alkaloids in feed materials and compound feeds by LC-MS/MS
BS EN 14362-1:2003 Textiles - Methods for the determination of certain aromatic amines derived from azo colorants - Detection of the use of certain azo colorants accessible without extraction
BS ISO 22887:2020 Determination of total sulfur in fertilizers by high temperature combustion

European Committee for Standardization (CEN), Determination method of total nitrogen in feed

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 15560:2023 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
EN 15561:2023 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
EN 17050:2017 Animal feeding stuffs: Methods of sampling and analysis - Determination of iodine in animal feed by ICP-MS
FprEN 17504-2021 Animal feeding stuffs: Methods of sampling and analysis - Determination of gossypol in cotton seed and feeding stuff by LC-MS/MS
EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
EN 15104:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
EN 17462:2021 Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates

CEN - European Committee for Standardization, Determination method of total nitrogen in feed

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
PREN 17362-2019 Animal feeding stuffs: Methods of sampling and analysis - Determination of pentachlorophenol (PCP) in feed materials and compound feed by LC-MS/MS
PD CEN/TS 15104:2005 Solid biofuels - Determination of total content of carbon@ hydrogen and nitrogen - Instrumental methods

Association Francaise de Normalisation, Determination method of total nitrogen in feed

NF EN 15478:2009 Engrais - Détermination de l'azote total dans l'urée
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 U42-147*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 EN 15561:2009 Engrais - Dosage de l'azote total dans la cyanamide calcique nitratée
NF U42-151:1984 Fertilizers. Determination of total nitrogen content. Titrimetric method after distillation.
NF X34-117:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods.
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 ISO 1871:2009 Produits alimentaires et aliments des animaux - Lignes directrices générales pour le dosage de l'azote selon la méthode de Kjeldahl
NF V18-120:1997 Animal feeding stuffs. Determination of nitrogen content. Combustion method (DUMAS).
NF EN 15560:2009 Engrais - Dosage de l'azote total dans la cyanamide calcique exempte de nitrate
NF V18-404*NF EN 17050:2017 Animal feeding stuffs : Methods of sampling and analysis - Determination of iodine in animal feed by ICP-MS
NF U42-146*NF EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free.
NF EN ISO 5983-1:2005 Aliments des animaux - Détermination de la teneur en azote et calcul de la teneur en protéines brutes - Partie 1 : méthode Kjeldahl
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 V18-804*NF EN 17504:2022 Animal feeding stuffs - Methods of sampling and analysis - Determination of gossypol in cotton seed and feeding stuff by LC-MS/MS
NF V18-249*NF EN 17362:2020 Animal feeding stuffs : methods of sampling and analysis - Determination of pentachlorophenol (PCP) in feed materials and compound feed by LC-MS/MS
NF EN 17362:2020 Aliments pour animaux : méthodes d'échantillonnage et d'analyse - Détermination de la teneur en pentaclorophénol (PCP) dans les matières premières pour aliments des animaux et les aliments composés pour animaux par CL-SM/SM
NF EN 17504:2022 Aliments des animaux - Méthodes d'échantillonnage et d'analyse - Dosage du gossypol dans les graines de coton et les aliments pour animaux par CL-SM/SM
NF EN 17270:2019 Aliments des animaux : méthodes d'échantillonnage et d'analyse - Détermination par chromatographie en phase liquide de la teneur en théobromine dans les matières premières destinées aux aliments des animaux et dans les aliments composés pour ...
NF EN 17853:2023 Alimentation animale : méthodes d'échantillonnage et d'analyse - Dosage des glucosinolates intacts dans les matières premières pour l'alimentation animale et les aliments composés par CLHP MS/MS
NF V18-247*NF EN 17053:2018 Animal feeding stuffs: Methods of sampling and analysis - Determination of trace elements, heavy metals and other elements in feed by ICP-MS (multi-method)
NF V18-750*NF EN 17462:2021 Animal feeding stuffs : methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
NF EN ISO 14362-3:2017 Textiles - Méthodes de détermination de certaines amines aromatiques dérivées de colorants azoïques - Partie 3 : détection de l'utilisation de certains colorants azoïques susceptibles de libérer du 4-aminoazobenzène
NF U42-887*NF ISO 22887:2021 Determination of total sulfur in fertilizers by high temperature combustion

Tianjin Provincial Standard of the People's Republic of China, Determination method of total nitrogen in feed

DB12/T 847-2018 Spectrophotometric method for the determination of total sugar in feed
DB12/T 1023-2020 Determination of total nitrogen content in organic fertilizers Dumas combustion method
DB12/T 512-2014 Determination method of nitrate nitrogen in soil samples

Professional Standard - Commodity Inspection, Determination method of total nitrogen in feed

SN/T 2115-2008 Determination of the hotel nitrogen content and calculation of the crude protein content in food and feed for import and export.Combustion according to the Dumas principle
SN/T 3097-2012 Determination of total nitrogen in fertelezers.Combustion
SN/T 2867-2011 Qualitative identification of fish derived material in feedstuff-PCR method
SN/T 4042-2014 Determination of azide in wines for export
SN/T 1201-2003 Protocol of PCR for detection of genetically modified feed

CZ-CSN, Determination method of total nitrogen in feed

CSN 46 7092-29-1998 Testing methods for feeding stuffs - Part 29: Determination of amonia content in the fish meals
CSN 46 7092-24-1998 Testing methods for feeding stuffs - Part 24: Determination of the non-nitrogen extract substances
CSN 46 7011-1974 Methods of determination o? harmful subtances in fodders
CSN 46 7092-11-1998 Testing methods for feeding stuffs - Part 11: Determination of total phosphorus content
CSN 46 7092-17-1998 Testing methods for feeding stuffs - Part 17: Determination of total sulphur content
CSN 46 7092-36-1998 Testing methods for feeding stuffs - Part 36: Determination of crumbled scrap in granuled feeding stuffs
CSN 46 7092-26-1998 Testing methods for feeding stuffs - Part 26: Determination of total carbonate content
CSN 65 4836-1983 Minerál fertilizers Methode for determination of total nitrogen content
CSN 46 7092-31-1998 Testing methods for feeding stuffs - Part 31: Determination of solubility index in milk feeding mixtures
CSN 46 7092-5-1998 Testing methods for feeding stuffs - Part 5: Determination of soluble nitrogen content after treatment with pepsin in hydrochloric acid solution
CSN 46 7092-32-1998 Testing methods for feeding stuffs - Part 32: Determination of the adipose particles size in milk feeding mixtures
CSN 46 7092-19-1998 Testing methods for feeding stuffs - Part 19: Determination of free, binded and total acidity in water extract
CSN 46 7092-10-1998 Testing methods for feeding stuffs - Part 10: Determination of ash insoluble in hydrochloric acid
CSN 46 7092-15-1998 Testing method for feeding stuffs - Part 15: Determination of sodium

Professional Standard - Agriculture, Determination method of total nitrogen in feed

GB 13080-1991 Determination method of lead in feed
GB 13088-1991 Determination method of chromium in feed
GB/T 13093-2023 Determination of the total number of bacteria in feed
GB/T 42955-2023 Determination of total nitrogen content in fertilizers Dumas combustion method
GB 13085-1991 Determination method of nitrite in feed
GB 13086-1991 Determination method of free gossypol in feed
GB 13089-1991 Determination method of oxazolidinethione in feed
GB/T 14700-1993 Method for Determination of Vitamin B1 in Feed
GB/T 14702-1993 Method for Determination of Vitamin B6 in Feed
GB/T 14701-1993 Method for Determination of Vitamin B2 in Feed
水产品质量安全检验手册 9.2.3.0-2005 Chapter IX Fishing Feed Inspection Section 2 Microorganism Testing Methods in Fishing Feed 3. Determination of Total Bacteria in Fishing Feed (GBT 13093-1991)
GB 3597-1983 Determination of nitrate nitrogen content in fertilizers Nitrogen reagent gravimetric method
GB 10511-1989 Determination of total nitrogen content in nitrophosphate fertilizers Titration after distillation
NY/T 1757-2009 Determination of benzodiazepines in feeds High performance liquid chromatography tandem mass spectrometry
NY/T 1819-2009 Determination of choline in feeds Ion chromatography
GB/T 5009.11-1996 Determination method of total arsenic in food
GB/T 5009.17-1996 Determination method of total mercury in food
水产品质量安全检验手册 9.1.8.0-2005 Chapter 9 Inspection of Fish Feeds Section 1 Basic Methods of Fish Feed Testing 8. Determination of Acid Value in Fishmeal (Feed) (GBT 19164-2003)
NY/T 1619-2008 Determination of betaine in feeds ion chromatography
NY/T 1032-2006 Determination of hydrocortisone in feeds.Gas chromatography method
GB 3595-1983 Determination of ammonia nitrogen content in fertilizers Titration method after distillation
水产品质量安全检验手册 9.1.3.0-2005 Chapter 9 Inspection of Fishing Feed Section 1 Basic Method of Testing Fishing Feed 3. Determination of Crude Ash in Fishing Feed (GBT 6438-1992)
水产品质量安全检验手册 9.1.7.0-2005 Chapter IX Inspection of Fishing Feed Section 1 Basic Method of Testing Fishing Feed VII. Determination of Crude Fiber in Fishing Feed (GBT 6434-1994)
水产品质量安全检验手册 9.1.6.0-2005 Chapter IX Inspection of Fishing Feed Section 1 Basic Method of Testing Fishing Feed VI. Determination of Crude Protein in Fishing Feed (GBT 6432-1994)
水产品质量安全检验手册 9.3.4.0-2005 Chapter IX Fishing Feed Inspection Section 3 Fishing Feed Routine Physical and Chemical Testing Methods 4. Determination of Mercury in Fishing Feed (GBT 13081-1991)
水产品质量安全检验手册 9.1.4.0-2005 Chapter IX Fishing Feed Inspection Section 1 Basic Method of Fishing Feed Testing 4. Determination of Crude Fat in Fishing Feed (GBT 6433-1994)
GB 3598-1983 Determination of Urea Nitrogen Content in Fertilizers Urease Method
GB/T 13882-1992 Determination method of iodine in feedstuffs Ferric thiocyanate-nitrous acid catalytic kinetic method
水产品质量安全检验手册 9.3.6.2-2005 Chapter 9 Inspection of Fishing Feed Section 3 Routine Physical and Chemical Testing Methods for Fishing Feed VI. Determination of Inorganic Arsenic in Fishing Feed (GBT 5009.11-2003) (2) Silver Salt Method
水产品质量安全检验手册 9.3.3.0-2005 Chapter IX Fishing Feed Inspection Section 3 Fishing Feed Routine Physical and Chemical Testing Methods 3. Determination of Chromium in Fishing Feed - Spectrophotometric Method (GBT 13088-1991)
水产品质量安全检验手册 9.3.5.0-2005 Chapter 9 Inspection of Fishing Feed Section 3 Routine Physical and Chemical Testing Methods of Fishing Feed 5. Determination of Lead in Fishing Feed - Spectrophotometric Method (GBT 13080-1991)
水产品质量安全检验手册 9.3.2.0-2005 Chapter 9 Inspection of Fishing Feed Section 3 Conventional Physical and Chemical Testing Methods for Fishing Feed 2. Determination of Cadmium in Fishing Feed - Spectrophotometric Method (GBT 13082-1991)
水产品质量安全检验手册 9.3.8.0-2005 Chapter 9 Inspection of Fishing Feed Section 3 Routine Physical and Chemical Testing Methods of Fishing Feed 8. Determination of Amino Acids in Fishing Feed (GBT 18246-2000)

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

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 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 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 E258-67(1996)e1 Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
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 D3228-20 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
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 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 D3228-05 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 D3228-08(2014) 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 UOP432-65T Total Nitrogen in Liquefied Petroleum Gases by Acid Extraction-Kjeldahl Procedure
ASTM D5176-91(2003) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D5176-91(1995) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D5176-08 Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D5176-08(2015) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D4870-18 Standard Test Method for Determination of Total Sediment in Residual Fuels
ASTM D4870-22 Standard Test Method for Determination of Total Sediment in Residual Fuels
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

Association of Official Analytical Chemists (AOAC), Determination method of total nitrogen in feed

AOAC 991.20 AOAC Official Method 991.20 Nitrogen (Total) in Milk Kjeldahl Methods

VN-TCVN, Determination method of total nitrogen in feed

TCVN 1545-1993 Animal mixed feeding stuffs.Method for determination of nitrogen-free extract
TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
TCVN 1535-1993 Animal mixed feeding stuffs.Methods for determination of fineness

Inner Mongolia Provincial Standard of the People's Republic of China, Determination method of total nitrogen in feed

DB15/T 1236-2017 Determination of volatile basic nitrogen in feedstuffs of animal origin by automatic Kjeldahl method
DB15/T 1458-2018 Method for Determination of pH Value, Organic Acid and Ammonia Nitrogen in Silage
DB15/T 1594-2019 Method for Determination of Microbial Quantity in Silage

GOSTR, Determination method of total nitrogen in feed

GOST R 58596-2019 Soils. Methods for determination of total nitrogen
GOST 13496.17-2019 Forage. Methods for determining carotin

Anhui Provincial Standard of the People's Republic of China, Determination method of total nitrogen in feed

DB34/T 1035-2009 Determination of total arsenic and inorganic arsenic in feed
DB34/T 814-2008 Determination of Selenium in Feed by Atomic Fluorescence Method
DB34/T 3662-2020 Determination of Antimony in Feed by Atomic Fluorescence Spectrometry

Indonesia Standards, Determination method of total nitrogen in feed

SNI 4146-2013
SNI 13-4699-1998 Determination of total manganese (Mn-total) in manganese ores sample

Jilin Provincial Standard of the People's Republic of China, Determination method of total nitrogen in feed

DB22/T 1874-2013 Determination of Volatile Basic Nitrogen in Feedstuffs of Animal Origin
DB22/T 1995-2014 Determination of feed grade choline chloride content Kjeldahl method
DB22/T 2051-2014 PCR method for determination of Clostridium botulinum in feed
DB22/T 2052-2014 Real-time fluorescent PCR method for determination of Salmonella in feed
DB22/T 2053-2014 A real-time fluorescent PCR method for the determination of Aspergillus nidulans in feed
DB22/T 2049-2014 PCR method for determination of duck-derived components in animal-derived feed

Henan Provincial Standard of the People's Republic of China, Determination method of total nitrogen in feed

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

Japanese Industrial Standards Committee (JISC), Determination method of total nitrogen in feed

JIS H 1685:2000 Method for determination of nitrogen in tantalum
JIS H 1685:1976 Methods for determination of nitrogen in tantalum
JIS G 1228:1997 Iron and steel -- Methods for determination of nitrogen content
JIS H 1653:1991 Methods for determination of nitrogen in zirconium and zirconium alloys
JIS H 1612:1993 Methods for determination of nitrogen in titanium and titanium alloys
JIS K 0104:2000 Methods for determination of nitrogen oxides in flue gas
JIS K 2609:1990 Crude petroleum and petroleum products -- Determination of nitrogen content
JIS K 0104:1984 Methods for determination of oxides of nitrogen in flue gases
JIS K 0104:2011 Methods for determination of nitrogen oxides in flue gas

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

KS D 2555-1995 Methods for determination of nitrogen in tantalum
KS D 2555-2015 Methods for determination of nitrogen in tantalum
KS M ISO 5315-2007(2012) Fertilizers－Determination of total nitrogen content－Titrimetric method after distillation
KS D 1811-1993 Methods for determination of nitrogen in iron and steel
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 D 1811-2003 Methods for determination of nitrogen in iron and steel
KS D 2530-2016 Methods for determination of nitrogen in titanium and titanium alloys
KS D 2573-1995 Methods for determination of nitrogen in zirconium and zirconium alloys
KS D 2573-2015 Methods for determination of nitrogen in zirconium and zirconium alloys
KS D 2530-2021 Methods for determination of nitrogen in titanium and titanium alloys
KS H ISO 1871-2013(2018) Agricultural food products ― General directions for the determination of nitrogen by the Kjeldahl method

International Organization for Standardization (ISO), Determination method of total nitrogen in feed

ISO 1871:2009 Food and feed products - General guidelines for the determination of nitrogen by the Kjeldahl method
ISO 5315:1984 Fertilizers; Determination of total nitrogen content; Titrimetric method after distillation
ISO 29541:2010 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen content - Instrumental method
ISO 6491:1980 Animal feeding stuffs; Determination of total phosphorus content; Spectrophotometric method
ISO 6493:2000 Animal feeding stuffs - Determination of starch content - Polarimetric 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 22887:2020 Determination of total sulfur in fertilizers by high temperature combustion

KR-KS, Determination method of total nitrogen in feed

KS D 1811-2003(2023) Methods for determination of nitrogen in iron and steel

ES-AENOR, Determination method of total nitrogen in feed

IN-BIS, Determination method of total nitrogen in feed

IS 7219-1973

BG-BDS, Determination method of total nitrogen in feed

BGC ISO 5983:2001 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Kjeldahl method

Hebei Provincial Standard of the People's Republic of China, Determination method of total nitrogen in feed

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

ES-UNE, Determination method of total nitrogen in feed

UNE-EN 17050:2018 Animal feeding stuffs. Methods of sampling and analysis - Determination of iodine in animal feed by ICP-MS
UNE-EN ISO 5983-1:2007/AC:2009 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005/Cor 1:2008)
UNE-EN 17504:2022 Animal feeding stuffs: Methods of sampling and analysis - Determination of gossypol in cotton seed and feeding stuff by LC-MS/MS
UNE-EN 17362:2021 Animal feeding stuffs: Methods of sampling and analysis - Determination of pentachlorophenol (PCP) in feed materials and compound feed by LC-MS/MS
UNE-EN 17053:2018 Animal feeding stuffs: Methods of sampling and analysis - Determination of trace elements, heavy metals and other elements in feed by ICP-MS (multi-method)
UNE-EN 17462:2021 Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
UNE-EN 17256:2020 Animal feeding stuffs: Methods of sampling and analysis - Determination of ergot alkaloids and tropane alkaloids in feed materials and compound feeds by LC-MS/MS

BE-NBN, Determination method of total nitrogen in feed

NBN V 21-013-1978 Determination of the total nitrogen contaimng substances content of milk - Amido black method

未注明发布机构, Determination method of total nitrogen in feed

BS EN ISO 5983-1:2005(2009) Animal feeding stuffs — Determination of nitrogen content and calculation of crude protein content — Part 1 : Kjeldahl method
BS 4267-2:1988(1999) Ammonium nitrate — Part 2 : Method for determination of total nitrogen content

PH-BPS, Determination method of total nitrogen in feed

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

Liaoning Provincial Standard of the People's Republic of China, Determination method of total nitrogen in feed

DB21/T 2071-2013 Determination method of total carbon in magnesia carbonaceous refractories

TH-TISI, Determination method of total nitrogen in feed

TIS 2255.1-2005 Animal feeding stuff s-determination of nitrogen content and calculation of crude protein content.part 1: kjeldahl method

Hunan Provincial Standard of the People's Republic of China, Determination method of total nitrogen in feed

DB43/T 1065-2015 Determination of amino acid in feed by near infrared method

Standard Association of Australia （SAA）, Determination method of total nitrogen in feed

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

Shandong Provincial Standard of the People's Republic of China, Determination method of total nitrogen in feed

DB37/T 2735-2015 Determination of ammonium sulfate content in dry powder fire extinguishing agent Total nitrogen content method
DB37/T 1678-2010 Rapid Determination of Melamine in Feed

Hubei Provincial Standard of the People's Republic of China, Determination method of total nitrogen in feed

DB42/T 1582-2020 Qualitative PCR detection method of bovine and sheep-derived components in feed

Guangdong Provincial Standard of the People's Republic of China, Determination method of total nitrogen in feed

DB44/T 1397-2014 Determination of Lutein in Feed Spectrophotometry

NL-NEN, Determination method of total nitrogen in feed

NEN 3145-1966 Feeding stuffs. Methodsof analysis. Determination of crude protein
NEN 3148-1965 Methods of analysis for feeding stuffs. Determination of the fat content.

Association of German Mechanical Engineers, Determination method of total nitrogen in feed

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

ZA-SANS, Determination method of total nitrogen in feed

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

PL-PKN, Determination method of total nitrogen in feed

PN R64822-1991 Feedstuffs. Determination of virginiamycin in preparations, premixes, concentrates and mixed feeds. Microbiological method
PN-EN 17256-2020-03 P Animal feeding stuffs: Methods of sampling and analysis--Determination of ergot alkaloids and tropane alkaloids in feed materials and compound feeds by LC-MS/MS
PN-EN 17462-2021-09 E Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed

Jiangxi Provincial Standard of the People's Republic of China, Determination method of total nitrogen in feed

DB36/T 1127-2019 Rapid Determination of Crude Ash, Calcium, Total Phosphorus and Sodium Chloride in Feed by Near Infrared Spectroscopy
DB36/T 483-2005 Determination of Selenium in Feedstuffs by Hydride Atomic Fluorescence Method

Professional Standard - Coal, Determination method of total nitrogen in feed

MT/T 742.1-1997 Determination of total chrominum in mine water
MT/T 743.1-1997 Determination of total phosphorus in mine water
MT/T 742.1-2011 Determination of total chrominum in mine water
MT/T 743.1-2011 Determination of total phosphorus in mine water

Shaanxi Provincial Standard of the People's Republic of China, Determination method of total nitrogen in feed

陕DB/T235-1996

Shanghai Provincial Standard of the People's Republic of China, Determination method of total nitrogen in feed

DB31/T 822-2014 Determination of Gossypol in Feed - High Performance Liquid Chromatography

农业农村部, Determination method of total nitrogen in feed

NY/T 3001-2016 Determination of amino acids in feed by capillary electrophoresis method
NY/T 2895-2016 Determination of folic acid in feed by high performance liquid chromatography

IT-UNI, Determination method of total nitrogen in feed

UNI 3711-1956
UNI EN 17462-2021 Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed
UNI 2963-1949 Procedures for chemical analysis of metallic materials. Determination of total silicon content of ferrosilicon.

AT-ON, Determination method of total nitrogen in feed

OENORM EN 17462-2021 Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed

CH-SNV, Determination method of total nitrogen in feed

SN EN 17462-2021 Animal feeding stuffs: Methods of sampling and analysis - Determination of the radionuclides Iodine-131, Caesium-134 and Caesium-137 in feed

Agricultural Standard of the People's Republic of China, Determination method of total nitrogen in feed

农业部1068号公告-7-2008 Determination of strychnine in feeds.Gas chromatography-mass spectrometry method

YU-JUS, Determination method of total nitrogen in feed

JUS H.B8.162-1988 Fertillzets. Determination of water content in fertilizers vrith nitrogen component trom carbamide. Gravimetric metbo?

Professional Standard - Urban Construction, Determination method of total nitrogen in feed

CJ 26.27-1991 Municipal sewage water quality inspection method standard Determination of total nitrogen Titration method after distillation