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Nitrogen and phosphorus content in water

Nitrogen and phosphorus content in water, Total:497 items.

In the international standard classification, Nitrogen and phosphorus content in water involves: Fertilizers, Air quality, Ferroalloys, Water quality, Construction materials, Inorganic chemicals, Beverages, Milk and milk products, Paint ingredients, Analytical chemistry, Organic chemicals, Non-ferrous metals, Coals, Farming and forestry, Non-metalliferous minerals, CLOTHING INDUSTRY, Metalliferous minerals, Fruits. Vegetables, External sewage systems, Animal feeding stuffs, Petroleum products in general, Welding, brazing and soldering, Soil quality. Pedology, Products of the chemical industry, Meat, meat products and other animal produce, Spices and condiments. Food additives, Iron and steel products, Cereals, pulses and derived products, General methods of tests and analysis for food products, Leather technology, Environmental protection, Pesticides and other agrochemicals, Fuels, Textile fibres, Food products in general, Ferrous metals, Edible oils and fats. Oilseeds, Raw materials for rubber and plastics, Lubricants, industrial oils and related products, Protection against fire, External water conveyance systems.

Professional Standard - Agriculture, Nitrogen and phosphorus content in water

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 1116-2014 Fertilizers.Determination of nitrate nitrogen, ammonium nitrogen, amide nitrogen contents
GB 10512-1989 Determination of Phosphorus Content in Nitrophosphate Fertilizer - Quinoline Phosphomolybdate Gravimetric Method
GB 3597-1983 Determination of nitrate nitrogen content in fertilizers Nitrogen reagent gravimetric method
NY/T 2419-2013 Determination of total nitrogen in plant.Automatic kjeldahl apparatus method
NY/T 2541-2014 Fertilizers.Determination of phosphorus content
NY/T 2542-2014 Fertilizers.Determination of total nitrogen content
GB 10513-1989 Determination of free water content in nitrophosphate fertilizer Karl Fischer method
GB/T 43098.1-2023 Methods for analysis of water treatment agents Part 1: Determination of phosphorus content
GB 6690-1986 Analysis method of monocrotophos content
219药典三部-2020 Content Determination Method 0704 Nitrogen Determination Method
GB 8088-1987 Determination of Nitrogen Content in Natural Raw Rubber
224药典三部-2020 Content Determination Method 3103 Determination of Phosphorus
GB 8572-1988 Determination of total nitrogen content in compound fertilizer
SC/T 3057-2022 Determination of phospholipid content in aquatic products and their products by liquid chromatography

RU-GOST R, Nitrogen and phosphorus content in water

GOST 32459-2013 White phosphorus. Determination in water by gas chromatography with nitrogen-phosphorus detector
GOST 6674.1-1996 Copper-phosphorus alloys. Methods for the determination of phosphorus
GOST 6674.1-1974 Alloy copper-phosphorus. Methods for the determination of phosphorus content
GOST 18309-1972 Drinking water. Method for determination of polyphosphate content
GOST R 51438-1999 Fruit and vegetable juices. Kjeldahl method for determination of nitrogen content
GOST 8775.4-1987 Lithium. Method of determination of nitrogen
GOST 17818.16-1990 Graphite. Method for determination of phosphorus
GOST 1953.4-1979 Tin bronze. Methods for the determination of phosphorus
GOST 14338.3-1991 Molybdenum. Methods for determination of phosphorus
GOST 13637.9-1993 Gallium. Method for the determination of phosphorus
GOST 14339.3-1991 Tungsten. Methods for determination of phosphorus
GOST 13637.9-1977 Gallium. Method for the determination of phosphorus
GOST 15933.11-1970 Ferroniobium. Method for the determination of nitrogen content
GOST 21600.6-1983 Ferrochrome. Method for the determination of nitrogen
GOST 34111-2017 Juice products. Determination of nitrogen content by Kjeldahl method
GOST 33045-2014 Water. Methods for determination of nitrogen-containing matters
GOST 33905-2016 Gasoline. Determination of the phosphorus content
GOST 13230.4-1993 Ferrosilicon. Method for determination of phosphorus
GOST 13047.9-2002 Nickel. Cobalt. Method for determination of phosphorus
GOST 11930.8-1979 Hard-facing materials. Method of phosphorus determination
GOST 21876.5-1976 Ferromanganese. Methods for the determination of phosphorus
GOST 21600.4-1983 Ferrochrome. Method for the determination of phosphorus
GOST R 53581-2009 Gasoline. Determination of the phosphorus content
GOST 13047.9-1981 Nickel. Method for the determination of antimony
GOST 13230.4-1981 Ferrosilicon. Methods for the determination of phosphorus
GOST 13151.6-1982 Ferromolybdenum. Methods for the determination of phosphorus content
GOST 26107-1984 Soils. Methods for determination of total nitrogen
GOST 18309-2014 Water. Methods for determination of phosphorus-containing matters
GOST 16698.4-1993 Metallic manganese and nitrated manganese. Methods for determination of phosphorus
GOST 2082.7-1981 Molibdenum concentrates. Method for determination of phosphorus content
GOST 23260.5-1978 Marble. Method for the determination of phosphorus
GOST 16698.4-1971 Metallic manganese. Method for the determination of phosphorus content
GOST 24024.11-1981 Phosphorus and inorganic phosphorus compounds. Method of ferrum determination
GOST 20851.2-1975 Mineral fertilizers. Methods for determination of phosphates
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 4192-1982 Drinking water. Methods for determination of mineral nitrogen-containing matters
GOST 1932-1993 Solid fuel. Methods for determinations of phosphorus
GOST 6674.2-1996 Copper-phosphorus alloys. Method for determination of copper
GOST 6674.3-1996 Copper-phosphorus alloys. Method for the determination of antimony
GOST 6674.4-1996 Copper-phosphorus alloys. Method for the determination of bismuth
GOST 6674.5-1996 Copper-phosphorus alloys. Methods for the determination of iron
GOST 1652.13-1977 Copper-zinc alloys. Methods for the determination of phosphorus
GOST 16591.5-1994 Ferrosilicomanganese. Method for determination of phosphorus
GOST 7619.9-1981 Fluorite. Method for the determination of phosphorus content
GOST 13020.4-1985 Metallic chrome. Method for determination of phosphorus
GOST 14858.3-1981 Silicocalcium. Method for the determination of phosphorus content
GOST 23859.4-1979 Bronze fire-resistance. Method for the determination of phosphorus
GOST 6674.2-1974 Alloy copper-phosphorus. Method for the determination of copper content
GOST 6674.3-1974 Alloy copper-phosphorus. Method for the determination of antimony content
GOST 6674.4-1974 Alloy copper-phosphorus. Method for the determination of bismuth content
GOST 1932-1982 Hard coals and coke. Methods for determination of phosphorus
GOST 16591.5-1987 Silicomanganese. Method for the determination of phosphorus content
GOST 7824-1980 Vegetable oils. Methods for determination of phosphorated substances content
GOST EN 15478-2013 Fertilizers. Determination of total nitrogen in urea
GOST 30181.3-1994 Mineral fertilizers. Method for determination of mass fraction of nitrogen in fertilizers with nitrate nitrogen
GOST R 51430-1999 Fruit and vegetable juices. Spectrophotometric method for determination of phosphorus content
GOST 26261-1984 Soils. Methods for determining total phosphorus and total potassium
GOST 13301-1967 Organic chemical products. Method of test for microdetermination of nitrogen

PL-PKN, Nitrogen and phosphorus content in water

PN C04576 ArkusZ14-1973 Water and w?sie water Tes?s for nitrogen Calcula?ion of to?al nitrogen
PN C87070-03-1992 Fertilizers Test of arsenie, cadmium, lead and mercury in nitrogenous and phosphatic fertilizers Determination of arsenie
PN C87070-04-1992 Fertilizers Tests of arsenie, cadmium, lead and mercury in nitrogenous and phosphatic fertilizers Determination of cadmium
PN C87070-05-1992 Fertilizers Tests of arsenie, cadmium, lead and mercury in nitrogenous and phosphatic fertilizers Determination of lead
PN C87070-06-1992 Fertilizers Tests of arsenie, cadmium, lead and mercury in nitrogenous and phosphatic fertilizers Determination of mercury
PN C87077-1992 Nitrogenous fertilizers. Determination of cooper
PN A82060-1987 Meat products Determination of the phosphorus content
PN A86026-1990 Milk and dairy products Milk powdcr Determination of nitritc and nitrate contents
PN A86930-1988 Eatable vegctable fars Determination of the phosphorus content
PN C04288-16-1989 Technical fats Methods of testing Determination of phosphorus content
PN H04725-02-1991 Chemical analysis of foundry copper-base alloys Determination of phosphorus content

American Society for Testing and Materials (ASTM), Nitrogen and phosphorus content in water

ASTM D5475-93(1997) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
ASTM D5475-93(2002) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
ASTM D6016-96 Standard Test Method for Determination of Nitrogen, Water Extractable in Leather
ASTM D6016-96(2001) Standard Test Method for Determination of Nitrogen, Water Extractable in Leather
ASTM D4012-81(2009) Standard Test Method for Adenosine Triphosphate (ATP) Content of Microorganisms in Water
ASTM D4012-15 Standard Test Method for Adenosine Triphosphate (ATP) Content of Microorganisms in Water
ASTM D4012-23 Standard Test Method for Adenosine Triphosphate (ATP) Content of Microorganisms in Water
ASTM D4012-23a Standard Test Method for Adenosine Triphosphate (ATP) Content of Microorganisms in Water
ASTM D2868-17 Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather, Wet Blue and Wet White

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Nitrogen and phosphorus content in water

GB/T 24583.5-2009 Vanadium-Nitrogen alloy.Determination of phosphorus content.The bismuth molybdenum blue spectrophotometry method
GB/T 10209.1-2001 Determination of total nitrogen content for monoammonium phosphate and diammonium phosphate(Titrimetric method after distillation)
GB/T 10209.1-2008 Determination of monoammonium phosphate and diammonium phosphate.Part 1:Total nitrogen content
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 6625-1986 Test methods for nitrogen content of nitrogen-doped getter
GB/T 23835.12-2009 Lithium perchlorate anhydrous.Part 12:Determination of total nitrogen content
GB/T 10512-1989 The determination of phosphorus content for nitrophosphate--Quinoline phosphomolybdate gravimetric method
GB/T 10512-2008 Determination of phosphorus content for nitrophosphate.Quinoline phosphomolybdate gravimetric method
GB/T 10514-1989 The determination of water content for nitrophosphate--Oven method
GB/T 10514-2012 Determination of free water for nitrophosphate.Oven method
GB 10514-1989 The determination of water content for nitrophosphate—Oven method
GB/T 3597-2002 Fertilizer--Determination of nitrate nitrogen content--Nitron gravimetric method
GB/T 4699.3-2007 Ferrochromium, silicochromium and nitrogen-bearing ferrochromium.Determination of phosphorus content.Molybdobismuthylphosphoric blue speckophotometric method and the molybdenum blue spectrophotometric method
GB/T 10209.2-2001 Determination of available phosphous content for monoammonium phosphate and diammonium phosphate
GB/T 5195.6-2006 Fluorspar. Determination of phosphorus content
GB/T 1871.1-1995 Phosphate rock and concentrate--Determination of phosphrous pentoxide content--Quinoline phosphomolybate gravimetric and volumetric methods
GB/T 10513-1989 The determination of water content for nitrophosphate--Karl Fischer method
GB/T 10513-2012 Determination of free water for nitrophosphate.Karl fischer method
GB/T 5686.4-2008 Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal. Determination of phosphorus content. Molybdenum blue photometric method and alkali content titrimetric method
GB/T 6690-1986 Analytical method of content for monocrotophos
GB/T 9695.11-1988 Meat and meat products--Method for determination of nitrogen content
GB/T 9695.11-2008 Meat and meat products.Determination of nitrogen content
GB/T 24583.8-2009 Vanadium-Nitrogen alloy.Determination of silicon，manganese，phosphorus，aluminum content.Inductively coupled plasma atomic emission spectrometric method
GB/T 5686.4-2022 Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal—Determination of phosphorus content—Molybdenum blue spectrophotometric method and bismuth phosphomolybdate b
GB/T 24583.3-2009 Vanadium-Nitrogen alloy.Determination of nitrogen content.The distillation-neutralization titration method
GB/T 1871.4-1995 Phosphate rock and concentrate--Determination of calcium oxide content--Volumetric methods
GB/T 1880-1995 Phosphate rock and concentrate--Determination of sulfur trioxide content--Gravimetric method
GB/T 10209.2-2010 Determination of monoammonium phosphate and diammonium phoshpate-Part 2:Phosphorus content
GB/T 5687.4-2016 Nitrogen-bearing ferrochromium and nitride ferrochrome with high nitrogen content.Determination of nitrogen content.The distillation-neutralization titration method
GB/T 29875-2013 Determination of lead,arsenic,mercury in phosphate rock and concentrate
GB 8199-1987 Analytical method of content for pyridaphenthione
GB/T 1874-1995 Phosphate rock and concentrate--Determination of acid insoluble content--Gravimetric method
GB/T 1876-1995 Phosphate rock and concentrate--Determination of carbon dioxide content--Gasometric method
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 1515-2002 Manganese ores--Determination of phosphorus content--Phosphomolybdenum blue spectrophotometric method
GB/T 4333.2-2023 Determination of ferrosilicon and phosphorus content bismuth phosphorus molybdenum blue spectrophotometry
GB/T 1873-1995 Phosphate rock and concentrate--Determination of silicon dioxide content--Gravimetric and volumetric methods
GB/T 24583.2-2009 Vanadium-Nitrogen alloy.Determination of nitrogen content.Thermal conductimetric method after fusion in a current of inert gas
GB/T 9695.4-1988 Meat and meat products--Method for determination of total phosphorus
GB/T 5537-2008 Inspection of grain and oils.Determination of phosphatide content

国家市场监督管理总局、中国国家标准化管理委员会, Nitrogen and phosphorus content in water

GB/T 24583.5-2019 Vanadium-nitrogen—Determination of phosphorus content—Bismuth molybdenum blue spectrophotometric method
GB/T 24583.8-2019 Vanadium-nitrogen—Determination of silicon, manganese, phosphorus, aluminum content—Inductively coupled plasma atomic emission spectrometric method
GB/T 24583.3-2019 Vanadium-nitrogen—Determination of nitrogen content—Distillation-neutralization titration method
GB/T 7731.4-2021 Ferrotungsten—Determination of phosphorus content—Phosphorus molybdenum blue spectrophotometric method
GB/T 38395-2019 Coal tar—Determination of sulfur and nitrogen content
GB/T 24583.2-2019 Vanadium-nitrogen—Determination of nitrogen content—Thermal conductimetric method after fusion in a current of inert gas

工业和信息化部, Nitrogen and phosphorus content in water

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
YB/T 4566.5-2016 Determination of vanadium ferrosilicon content by sulfuric acid dehydration gravimetric method
YB/T 4582.8-2017 Determination of silicon content in ferrosilicon nitride perchloric acid dehydration gravimetric method
YB/T 4532-2016 Determination of phosphorus, iron and phosphorus content by acid-base titration method
YB/T 4726.5-2021 Determination of phosphorus content in iron-containing dust sludge bismuth phosphorus molybdenum blue spectrophotometry
YB/T 4582.7-2017 Determination of total nitrogen content of ferrous silicon nitride by neutralization titration method
YB/T 4566.4-2016 Determination of silicon, manganese, phosphorus and aluminum content in ferrovanadium nitride by inductively coupled plasma atomic emission spectrometry
YB/T 4528-2016 Determination of nitrogen content in ferrochromium nitride and high nitrogen ferrochrome by inert gas melting thermal conductivity method
YB/T 4529-2016 Determination of nitrogen content in manganese iron nitride by inert gas melting thermal conductivity method
YB/T 4566.1-2016 Determination of nitrogen content in vanadium iron nitride by inert gas melting thermal conductivity method

ZA-SANS, Nitrogen and phosphorus content in water

SANS 6055:2006 Water - Orthophosphate content
SANS 333:1996 Coal - Determination of nitrogen - Semi-micro Kjeldahl method
SANS 8968-5:2006 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content
SANS 6878:2006 Water quality - Determination of phosphorus - Ammonium molybdate spectrometric method
SANS 8968-4:2006 Milk - Determination of nitrogen content Part 4: Determination of non-protein-nitrogen content
SANS 970:2010 Leather - Determination of nitrogen content and "hide substance" - Titrimetric method
SANS 5937:2000 Phosphorus content of coal (photometric method)

RO-ASRO, Nitrogen and phosphorus content in water

SR 184-25-1998 Ethyl alcohol. Determination of ammonia and azotic bases nitrogen content
SR 8379-2-1997 Superfosphate - Determination of water-soluble phosphorus pentoxyde content
STAS 8623/2-1970 PHOSPHORITES AND APATITES. Determination of hygroscopic water content
STAS 8623/8-1974 PHOSPHORITES AND APATITES Determination of moisture content at delivery
STAS 7312-1983 SURFACE AND RESIDUAL WATERS Determination of azote content
STAS 8379/2-1969
STAS 1706/14-1979 COPPER Determination of phosphorus content
STAS 6843-1982 STEELS ANI) CAST 1RONS Determination of nitrogen content
SR 8379-9-1997 Superfosphate - Total phosphore content determination
STAS 11346/3-1987 FERROPHOSPHORUS Determination of phosphorus content
STAS 9065/7-1974 MEAT AND MEAT PRODUCTS Determination of easyly hydrolisable nitrogen content
STAS 8623/3-1970 PHOSPHORITES AND APATITES Determination of phosphorus pentoxid content
SR ISO 4176:1981 Fertilizers. Determination of nitrate nitrogen content. Nitrogen gravimetric method
STAS 8623/6-1970 PHOSPHORITES AND APATITES Determination of fluor content
STAS 11346/2-1979 FERROPHOSPHORUS Determination of carbon content
STAS 7184/14-1979 SOILS Determination of total phosphor content
STAS 9636/4-1983 FERROCHROM1UM DeteArmination of?phosphorus content
STAS 6182/4-1979 WINE Determination of total nitrogen content
STAS 7184/2-1985 SOILS Nitrogen content determination
STAS 8379/9-1981 SUPERPHOSPHATE Determination of total phosphon content
STAS 10966-1977 Determination of chlorine, phosphorus and arsenic content
STAS 7473-1966
STAS 11346/4-1979 FERROPHOSPHORUS Determination of silicon content
STAS 11346/5-1979 FERROPHOSPHORUS Determination of sulphur content
STAS 11346/6-1979 FERROPHOSPHORUS Determination of manganese content
STAS 1707/5-1973 FERROMANGANESE Determination of phosphorns content
STAS 2960/11-1967
STAS 1460-1987 STEELS AND CAST IRONS Phosphorus content determination
STAS 7591-1966
STAS 6892-1963
STAS 12459/9-1986 NICKEL-BASE ALLOYS Phosphorus content determination
STAS 4813/8-1973 BAUXITE Determination of phosphorus content
STAS 6182/38-1975 WINE Determination of to- tal phosphorus
STAS 8623/7-1970 PHOSPHORITES AND APATITES Determination of carbon dioxide content
STAS 7425-1979 NITROCELLULOSES Determination of nitrogen content
STAS SR 12271-6-1994
STAS 8613/6-1980 CONCENTRATED FOODSTUFF Determination of nitrogen content
STAS 12205-1984 SLUDGES RESULTED FROM SURFACE WATERS TREATING AND WASTE WATERS PURI- FICATION Phosphorus content determination
STAS 12200-1985 SLUDGES RESULTED FROM= SURFACE WATERS TREATMENT AND WASTE WATERS PURIFI- CATION Nitrogen content determination
STAS SR 11411-2-1998 Complex chemical fertilizers - Phosphorus content determination Spectrophotometry method
STAS SR 13325-1995 Animal feeding stuffs - Determination of total nitrogen content and calculation of crude protein content
STAS 10853/6-1977 FERROTUNGSTEN Determination of phosphor content
STAS 11047/5-1978 FERROSILICOMANGANESE Determination of phosphorous content
STAS 2825/11-1967
STAS 2979/15-1967
STAS 8379/5-1969
STAS 8379/6-1969
STAS 8623/5-1970 PHOSPHORITES AND APATITES Determination of iron and aluminium oxides content
STAS 9621-1974 COKE AND SEMICOKE Determination of phosphorus content
STAS 9621-1982 COKE AND SEMICOKE Determination of phosphorus content
STAS 10395/5-1975 FERROVANADIUM Determination of phosphorus content
STAS 145/14-1978 VEGETABLE FATS AND OILS Determination of phosphorus content

NL-NEN, Nitrogen and phosphorus content in water

NEN 6642-1992 Water-Calculation of total nitrogen content
NEN 6479-1981 Water - Photometric determination of the content of phosphorus compounds
NEN 6646-1990 Water - Photometric determination of the content of ammonium nitrogen and of the sum of the contents of ammoniacal and organically bound nitrogen according to Kjeldahl by continuous flow analysis
NEN 6395-1992 Fruit lemonades - Determination of total phosphorus content - Spectrometric method
NEN 6662-1985 Sludge - Determination of total phosphorus content
NEN 3442-1968 Meat and meat products. Determination of nitrogen content
NEN 3760-1984 Cheese - Determination of the nitrogen content according to Kjeldahl - Calculation of the crude protein content
NEN 6482-1982 Water - Determination of the sum of ammoniacal and organically bound nitrogen according to Kjeldahl after mineralization with selenium
NEN 6481-1983 Water - Determination of the sum of ammoniacal and organically bound nitrogen according to Kjeldahl after mineralization with selenium

Group Standards of the People's Republic of China, Nitrogen and phosphorus content in water

T/CMES 01011-2023 Determination method for content of nitrogen, sulfur and phosphorus in recycled sand for foundry
T/SDAQI 061-2021 Determination of Phosphite in Water-soluble Fertilizer

European Committee for Standardization (CEN), Nitrogen and phosphorus content in water

EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
EN 1136:1994 Fruit and vegetable juices - Determination of phosphorus content - Spectrometric method
EN 12135:1997 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
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 8968-5:2001 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content (ISO 8968-5:2001)
EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
EN ISO 15681-2:2018 Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Part 2: Method by continuous flow analysis (CFA) (ISO 15681-2:2018)

British Standards Institution (BSI), Nitrogen and phosphorus content in water

BS EN ISO 10695:2000 Water quality. Determination of selected organic nitrogen and phosphorus compounds. Gas chromatographic methods
BS 4258-10:1978 Methods of test for phosphoric acid (orthophosphoric acid) for industrial use - Determination of oxides of nitrogen content
BS EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
DD ENV 12260-1996 Water quality. Determination of nitrogen. Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection
BS EN ISO 8968-5:2002 Milk. Determination of nitrogen content. Determination of protein-nitrogen content
BS EN ISO 8968-4:2002 Milk. Determination of nitrogen content. Determination of non-protein nitrogen content
BS EN 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
BS EN ISO 15681-2:2004 Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Method by continuous flow analysis (CFA)
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 DD CEN/TS 15478:2006 Fertilizers - Determination of total nitrogen in urea
BS 4427-1:1969 Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use - Determination of matter insoluble in water in sodium tripolyphosphate
BS EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
BS EN ISO 13395:1996 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
BS 4427-15:1982 Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use - Condensed phosphates for industrial use (including foodstuffs) - determination of oxides of nitrogen content -

Yunnan Provincial Standard of the People's Republic of China, Nitrogen and phosphorus content in water

DB5301/T 61-2021 Measuring method of nitrogen and phosphorus in algae mud of Dianchi Lake cyanobacteria treatment station
DB5301/T 49-2021 Indirect discharge limits of nitrogen and phosphorus pollutants from industrial enterprises wastewater

Danish Standards Foundation, Nitrogen and phosphorus content in water

DS 292:1985 Water analysis. Total phosphor. Photometric method
DS/EN 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
DS 291:1985 Water analysis. Phosphate. Photometric method
DS/EN ISO 8968-4:2002 Milk - Determination of nitrogen content - Part 4: Determination of non-protein nitrogen content
DS/EN ISO 8968-5:2002 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content
DS/EN 1136:1995 Fruit and vegetable juices - Determination of phosphorus content - Spectrometric method
DS/EN ISO 20483:2007 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
DS/EN ISO 8968-1:2002 Milk - Determination of nitrogen content - Part 1: Kjeldahl method
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

FI-SFS, Nitrogen and phosphorus content in water

SFS 3029 E-1976 In the event of any differences in interpretation of this standard the Finnish version shall take precedence over this translation

Association Francaise de Normalisation, Nitrogen and phosphorus content in water

NF T90-015:1975 TESTING WATER-DETERMINATION OF NITROGEN (AMMONIA)
NF V04-221-5:2002 Milk - Determination of nitrogen content - Part 5 : determination of protein-nitrogen content.
NF EN 1136:1994 Jus de fruits et de légumes - Détermination de la teneur en phosphore - Méthode spectrométrique.
NF V76-134*NF EN 12135:1997 Fruit and vegetable juices. Determination of nitrogen content. Kjeldahl method.
NF V04-211:1971 MILK. DETERMINATION OF TOTAL NITROGEN CONTENT. (KJELDAHL METHOD).
NF U42-141:1984 Fertilizers. Determination of nitrate nitrogen content. Nitrogen gravimetric method.
NF V04-221-4:2002 Milk - Determination of nitrogen content - Part 4 : determination of non-protein nitrogen content.
NF U42-245*NF ISO 6598:1987 Fertilizers - Determination of phosphorus content - Quinoline phosphomolybdate gravimetric method.
NF U42-117:1965 Products used in agriculture. Fertilizers. Determination of nitrogen content in class a nitrogenous fertilizers.
NF U42-118:1965 Products used in agriculture. Determination of nitrogen content in class B nitrogenous fertilizers.
NF U42-119:1965 Products used in agriculture. Determination of nitrogen content in class C nitrogenous fertilizers.
NF V76-103*NF EN 1136:1994 Fruit and vegetable juices. Determination of phosphorus content. Spectrometric method.
NF U42-191:1988 Fertilizers. Nitrogenous fertilizers containing synthetic organic nitrogen. Determination of the types of nitrogen.
NF V59-202:1988 Collagenes. Determination of the nitrogen content.
NF T73-702:1977 Washing powders. Determination of total phosphorus (V)oxide content.quinoline phosphomolybdate gravimetric method.
NF EN ISO 20483:2014 Céréales et légumineuses - Détermination de la teneur en azote et calcul de la teneur en protéines brutes - Méthode de Kjeldahl
NF T90-023:1997 Water quality. Determination of phosphorus. Ammonium molybdate spectrometric 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 X31-111*NF ISO 11261:1995 Soil quality. Determination of total nitrogen. Modified kjeldahl method.
NF V04-407:2002 Meat, meat product and fishery products - Determination of nitrogen content and calculation of the protein content - Kjeldahl method.
NF V03-750:2007 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method.
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 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 T90-083-1*NF EN ISO 15681-1:2005 Water quality - Determination of orthophosphate and total phosphorus by flow analysis (FIA and CFA) - Part 1 : method by flow injection analysis (FIA).
NF T90-083-2:2005 Water quality - Determination of orthophosphate and total phosphorus by flow analysis (FIA and CFA) - Part 2 : method by continuous flow analysis (CFA).
NF C17-200 F1:2000 Solid mineral fuels - Determination of nitrogen.
NF X33-009*NF EN 13342:2000 Characterization of sludges - Determination of Kjeldahl nitrogen
NF EN ISO 8968-1:2014 Lait et produits laitiers - Détermination de la teneur en azote - Partie 1 : méthode Kjeldahl et calcul de la teneur en protéines brutes
NF T20-476:1973 Phosphoric acid for industrial use. Determination of total phosphoric pentoxide content. Gravimetric method using quinoline phosphomolybdate.

National Sanitation Foundation (NSF), Nitrogen and phosphorus content in water

NSF 245A-2010 Wastewater Treatment Systems - Nitrogen Reduction

Lithuanian Standards Office , Nitrogen and phosphorus content in water

LST EN 12135-2001 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
LST EN 1136-2000 Fruit and vegetable juices - Determination of phosphorus content - Spectrometric method
LST EN ISO 8968-5:2002 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content (ISO 8968-5:2001)
LST EN ISO 8968-4:2002 Milk - Determination of nitrogen content - Part 4: Determination of non-protein nitrogen content (ISO 8968-4:2001)
LST EN ISO 20483:2007 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2006)

AENOR, Nitrogen and phosphorus content in water

UNE-EN 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
UNE 34830:1983 DETERMINATION OF THE PHOSPHORUS CONTENT OF MILK.
UNE-EN ISO 20483:2014 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2013)

German Institute for Standardization, Nitrogen and phosphorus content in water

DIN EN 12135:1997-12 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method; German version EN 12135:1997
DIN CEN/TS 15558:2007 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch; German version CEN/TS 15558:2007
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 CEN/TS 15559:2007 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd; German version CEN/TS 15559:2007
DIN EN 12260:2003 Water quality - Determination of nitrogen - Determination of bound nitrogen (TN<(Index)b>), following oxidation to nitrogen oxides; German version EN 12260:2003
DIN EN ISO 8968-4:2002 Milk - Determination of nitrogen content - Part 4: Determination of the non-protein-nitrogen content (ISO 8968-4:2001); German version EN ISO 8968-4:2001
DIN EN ISO 8968-5:2002 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content (ISO 8968-5:2001); German version EN ISO 8968-5:2001
DIN EN ISO 11905-1:1998 Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate (ISO 11905-1:1997); German version EN ISO 11905-1:1998
DIN EN 12135:1997 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method; German version EN 12135:1997
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 1136:1994-12 Fruit and vegetable juices - Determination of phosphorus content; spectrophotometric method; German version EN 1136:1994
DIN EN ISO 20483:2014-03 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2013); German version EN ISO 20483:2013
DIN 51722-1:1990-07 Testing of solid fuels; determination of nitrogen content; semi-micro Kjeldahl method
DIN EN ISO 15681-1:2005 Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Part 1: Method by flow injection analysis (FIA) (ISO 15681-1:2003); German version EN ISO 15681-1:2004
DIN EN ISO 15681-2:2005 Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Part 2: Method by continuous flow analysis (CFA) (ISO 15681-2:2003); German version EN ISO 15681-2:2004
DIN EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda; English version of DIN EN 15476:2009-04
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

SE-SIS, Nitrogen and phosphorus content in water

SIS 02 81 26-1974 Determination of orthophosphate content of water
SIS 02 81 27-1974 Determ i nation of total phosphorous content of water
SIS SS 02 81 33-1991 Determination of the sum of the nitrite and nitrate nitrogen content of water
SIS SS 14 62 42-1982 High carbon ferrochromium (low phosphorus content)
SIS SS 02 81 01-1992 Nitrogen content of water — Determination with Kjeldahl method after reduction with Devarda's alloy

Guizhou Provincial Standard of the People's Republic of China, Nitrogen and phosphorus content in water

DB52/T 1607-2021 Nitrogen, Phosphorus and Potassium Nutrient Limits for Tea Gardens

Jiangsu Provincial Standard of the People's Republic of China, Nitrogen and phosphorus content in water

DB32/T 4541-2023 Sea water quality evaluation guide for total nitrogen and total phosphorus
DB32/T 2962-2016 Technical Regulations on Nitrogen Control and Phosphorus Reduction of Rice in Taihu Lake Area

VN-TCVN, Nitrogen and phosphorus content in water

TCVN 3706-1990 Aquatic products.Method for the determination of nitrogen ammonia content
TCVN 3707-1990 Aquatic products.Method for the determination of amine ammonia nitrogen content
TCVN 3708-1990 Aquatic products.Method for the determination of nitrogen amino acid content
TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
TCVN 5265-1990 Bee products.Determination of total nitrogen content
TCVN 3858-1983 Ferrochrome.Method for the determination of phosphorus content
TCVN 3865-1983 Ferrotitanium.Method for the determination of phosphorus content
TCVN 5489-1991 Washing powders.Determination of total phosphorus (V) oxide content.Quinoline phosphomolybdate gravimetric method

PT-IPQ, Nitrogen and phosphorus content in water

NP EN 12135-2000 Fruit and vegetable juices Determination of nitrogen content Kjeldahl method
NP 3646-1987
E 211-1967
NP 1996-2000 Cereals and pulses Determiantion of the nitrogen content and calculation of the raw protein content Kjeldhal method

National Metrological Verification Regulations of the People's Republic of China, Nitrogen and phosphorus content in water

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

Malaysia Standards, Nitrogen and phosphorus content in water

MS 880 Pt.2-1984

Indonesia Standards, Nitrogen and phosphorus content in water

SNI 7185-2009
SNI 19-2483-1991 Test methods for phospate and ortophospate content on water by spectrophotometers in a ascorbic acid
SNI 06-2510-1991 Water, Test methods for organic phosphate content by gas chromatography apparatus
SNI 13-3482-1994 Coal, Determination of nitrogen using Kyeldahl method
SNI 06-6989.14-2004 Water and waste water - Part 14: Test methods of dissolved oxygen by iodometry (azide modification)
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

HU-MSZT, Nitrogen and phosphorus content in water

AR-IRAM, Nitrogen and phosphorus content in water

Korean Agency for Technology and Standards (KATS), Nitrogen and phosphorus content in water

KS D 2070-2019 Ferrophosphorus — Methods for determination of phosphorus content
KS I ISO 15681:2014 Water quality — Determination of orthophosphate and total phosphorus contents by flow analysis(FIA and CFA)
KS D 2070-2003 Determination of phosphour in ferrophosphorus
KS I ISO 15681-2014(2021) Water quality — Determination of orthophosphate and total phosphorus contents by flow analysis(FIA and CFA)
KS M ISO 4176-2006(2011) Fertilizers－Determination of nitrate nitrogen content－Nitron gravimetric method
KS E 3917-2011(2016) Determination of phosphorus in titanium ores
KS M ISO 6598-2007(2012) Fertilizers－Determination of phosphorus content－Quinoline phosphomolybdate gravimetric method
KS D 2555-2005 Methods for determination of nitrogen in tantalum
KS D 2530-2007 Methods for determination of nitrogen in titanium and titanium alloys
KS M ISO 5397:2002 Leather－Determination of nitrogen content and “hide substance”－Titrimetric method
KS M 2403-2001 Testing method for phosphorus in gasoline
KS M ISO 6598:2007 Fertilizers-Determination of phosphorus content-Quinoline phosphomolybdate gravimetric method
KS M ISO 6598:2013 Fertilizers－Determination of phosphorus content－Quinoline phosphomolybdate gravimetric method
KS I ISO 15681-1:2010 Water quality-Determination of orthophosphate and total phosphorus contents by flow analysis(FIA and CFA)-Part 1:Method by flow injection analysis(FIA)
KS I ISO 15681-2:2010 Water quality-Determination of orthophosphate and total phosphorus contents by flow analysis(FIA and CFA)-Part 2:Method by continuous flow analysis(CFA)
KS D 1811-2003 Methods for determination of nitrogen in iron and steel
KS M ISO 4313:2003 Washing powders－Determination of total phosphorus(V) oxide content－Quinoline phosphomolybdate gravimetric method
KS E ISO 6127-2002(2017) Chromium ores－Determination of phosphorus content－Reduced molybdophosphate photometric 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

Anhui Provincial Standard of the People's Republic of China, Nitrogen and phosphorus content in water

DB34/T 1427-2011 Cultivation Technical Regulations of Rice Nitrogen and Phosphorus Reduction Control in Chaohu Lake Region

Taiwan Provincial Standard of the People's Republic of China, Nitrogen and phosphorus content in water

CNS 6241-1980 Method of Test for Water of Hydration in Tribasic Lead Phosphosilicate
CNS 4051-1976 Methods for Determination of Nitrate Nitrogen in Polluted and Waste Water
CNS 6239-1980 Method of Test for Phosphorus in Tribasic Lead Phosphosilicate
CNS 4052-1976 Methods for Determination of Nitrite Nitrogen in Polluted and Waste Water
CNS 1289-1960 Method of Test for Leather (Nitrogen Content Test)
CNS 9638-1982 Method of Test for Calcium and Phosphorus in Food Stuff

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会, Nitrogen and phosphorus content in water

GB/T 34532-2017 Coking wastewater—Determination of ammonia nitrogen content—Formaldehyde method

Japanese Industrial Standards Committee (JISC), Nitrogen and phosphorus content in water

JIS G 1320:2007 Ferrophosphorus -- Methods for determination of phosphorus content
JIS H 1685:1976 Methods for determination of nitrogen in tantalum
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 M 8216:1994 Iron ores -- Method for determination of phosphorus content
JIS G 1214:1998 Iron and steel -- Methods for determination of phosphorus content
JIS G 1228:1997 Iron and steel -- Methods for determination of nitrogen content
JIS M 8216:2021 Iron ores -- Determination of phosphorus content -- Phosphomolybdate blue spectrophotometric method

International Organization for Standardization (ISO), Nitrogen and phosphorus content in water

ISO 8968-5:2001 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content
ISO 8968-5:2001|IDF 20-5:2001 Determination of milk nitrogen content Part 5: Determination of protein nitrogen content
ISO 8968-4:2001 Milk - Determination of nitrogen content - Part 4: Determination of non-protein-nitrogen content
ISO 8968-4:2001 | IDF 20-4:2001 Milk — Determination of nitrogen content — Part 4: Determination of non-protein-nitrogen content
ISO 8968-5:2001 | IDF 20-5:2001 Milk — Determination of nitrogen content — Part 5: Determination of protein-nitrogen content
ISO 8968-4:2001|IDF 20-4:2001 Determination of milk nitrogen content Part 4: Determination of non-protein nitrogen content
ISO 5397:1984 Leather; Determination of nitrogen content and "hide substance"; Titrimetric method
ISO 3709:1976 Phosphoric acid for industrial use (including foodstuffs); Determination of oxides of nitrogen content; 3,4- Xylenol spectrophotometric method
ISO 8968-1:2001 | IDF 20-1: 2001 Milk — Determination of nitrogen content — Part 1: Kjeldahl method
ISO 6598:1985 Fertilizers; Determination of phosphorus content; Quinoline phosphomolybdate gravimetric method
ISO 8968-4:2001/Cor 1:2011 Milk - Determination of nitrogen content - Part 4: Determination of non-protein-nitrogen content; Technical Corrigendum 1
ISO 15681-1:2003 Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Part 1: Method by flow injection analysis (FIA)
ISO 15681-2:2003 Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Part 2: Method by continuous flow analysis (CFA)
ISO 15681-2:2018 Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Part 2: Method by continuous flow analysis (CFA)
ISO 3099:1974 Oilseed residues — Determination of total nitrogen content
ISO 3357:1975 Sodium tripolyphosphate and sodium pyrophosphate for industrial use; Determination of total phosphorus(V) oxide content; Quinoline phosphomolybdate gravimetric method
ISO 4313:1976 Washing powders; Determination of total phosphorus(V) oxide content; Quinoline phosphomolybdate gravimetric method
ISO 3706:1976 Phosphoric acid for industrial use (including foodstuffs); Determination of total phosphorus(V) oxide content; Quinoline phosphomolybdate gravimetric method

International Dairy Federation (IDF), Nitrogen and phosphorus content in water

IDF 20-5-2001 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content
IDF 20-4-2001 Milk - Determination of nitrogen content - Part 4: Determination of non-protein-nitrogen content
IDF 20-1-2001 Milk - Determination of nitrogen content - Part 1: Kjeldahl method

TR-TSE, Nitrogen and phosphorus content in water

TS 2918-1978 PHOSPHORIC ACID FOR INDUSTRIAL USE (INCLUDING FOODSTUFFS) — DETERMINATION OF OXIDES OF NITROGEN CONTENT — 3,4 — XYLENOL SPECTROPHOTOMETRY
TS 2928-1978 PHOSPHORIC ACID FOR INDUSTRIAL USE (INCLUDING FOODSTUFFS) — DETERMINATION OF TOTAL PHOSPHORUS (V) OXIDE CONTENT — QUINOLINE PHOSPHOMOLYBDATE GRAVIMETRIC METHOD
TS 3651-1981 METHODS FOR THE ANALYSIS OF WATER — DETERMINATION OF IRON CONTENT — 1,10 Phenanthroline Spectrophotometry Method

YU-JUS, Nitrogen and phosphorus content in water

JUS H.G8.447-1990 Reagents. Zine sulphate heptahydrate. 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.G8.467-1991 Reagents.Nickel(II) sulphate x-hydrate.Determination of total nitrogen content.Colorimetric method
JUS H.B8.291-1999 Fertilizers - Determination of phosphorus content - Magnesium pyrophosphate gravimetric 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.G8.472-1991 Reacjents. Orthophosphpric acid. Determination of orthophosphoric acid content. Volumetric method
JUS H.F8.131-1986 Gases. Determination of nitrogen content. Indirect method
JUS H.B8.288-1983 Fertilizers. Determination of content total-nitrogen. Volumetric method
JUS H.G8.375-1989 Reagents. Sodium acetate trihvdrate and sodium acetate anhydrous. Determination of phosphate content. Colorimetric niethod

Shaanxi Provincial Standard of the People's Republic of China, Nitrogen and phosphorus content in water

DB61/T 1414-2021 Specifications for application limits of nitrogen, phosphorus and potassium fertilizers in wheat

BE-NBN, Nitrogen and phosphorus content in water

NBN EN 1136-1995 Fruit and vegetable juices - Determination of phosphorus content - Spectrometric method
NBN T 63-130-1980 Washing powders - DEermination of total phosphorus(V) oxide content - Quinoline phosphomolybdate gravimErie method

Professional Standard - Chemical Industry, Nitrogen and phosphorus content in water

HG/T 2220-1991 Determination of phosphorus content in double superphosphate quinoline phosphomolybdate gravimetric method
HG 2220-1991 Determination of phosphorus content in double superphosphate quinoline phosphomolybdate gravimetric method
HG/T 3540-2011 Industrial circulating cooling water.Determination of total phosphate
HG/T 2980-1987 Analytical method of content for pyridaphenthione
HG/T 2980-1987(1997) Analytical method of content for pyridaphenthione

Shanxi Provincial Standard of the People's Republic of China, Nitrogen and phosphorus content in water

DB1408/T 026-2022 Technical regulations for limited use of nitrogen, phosphorus and potassium fertilizers in cotton

Professional Standard - Recommended Standards for Engineering Construction, Nitrogen and phosphorus content in water

CECS 149-2003 Specification for design of nitrogen and phosphorus removal in activated sludge system

Inner Mongolia Provincial Standard of the People's Republic of China, Nitrogen and phosphorus content in water

DB15/T 3045-2023 Technical guidelines for the prevention and control of agricultural non-point source pollution of nitrogen and phosphorus in water bodies

CU-NC, Nitrogen and phosphorus content in water

NC 24-65-1986 Inorganic Chemical Products Nitrogen. Determination of Water Vapor Content. Aerial Water Point Method
NC 28-08-1987 Fertilxzers. Mixed, Granulated and Complex Fertilizers. Determination of Total Nitrogen, Assimilable Phosphorus and Potassium by the Weighing Method

BG-BDS, Nitrogen and phosphorus content in water

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

CZ-CSN, Nitrogen and phosphorus content in water

CSN 65 1070-1981 Determination of raonophosphate content
CSN 65 0331-1963 Deterimination oí Nierogea by Kjeldahl's method
CSN 65 4814-1976 Determinaíion of nitrogen oontent in fertilizers
CSN 56 0020-1987 General directions for the determination f nitrogen by the Kjeldahl method
CSN 83 0540 Cast.13-1984 Chemical and physical analysis of waste water Determination of organic and total nitrogen
CSN 42 0621 Cast.34-1980 Copper. Determination of phosphorus by the photometric method
CSN 42 0640 Cast.16-1982 Chemical analysis of non-ferrous metals and alloys. Nickel. Determination of phosphorus by the photometric method
CSN 42 0646 Cast.6-1989 Chemical analysis of non-ferrous metals and alloys. Molybdenum. Determination of phosphorus by the photometric method
CSN 42 0647 Cast.14-1989 Chemical analysis of non-ferrous metals and alloys. Tungsten. Determination of phosphorus by the photometric method
CSN 62 3008-1986 Natural raw rubber in blocks. Determination of nitrogen content
CSN 65 1064-1988 Inorganic compounds of phosphorus. etermination of pentanatrium tri- hosphate content.
CSN ISO 6676:1992 Acid-grade fluorspar - Determination of total phosphorus content - Molybdophosphate photometric method
CSN 42 0620 Cast.7-1981 Brasses. Determination of phosphorus by the photometric method
CSN 44 1360-1960 Determination of phosporus in solid fuels
CSN 42 0622 Cast.6-1981 Bronzes. Determination of phosphorus by the photometric method
CSN 58 8790-1994 Methods of test for fats and oils Determination of phosphatides content

BELST, Nitrogen and phosphorus content in water

STB GOST R 51430-2006 Fruit and vegetable juices. Spectrophotometric method for determination of phosphorus content

Shandong Provincial Standard of the People's Republic of China, Nitrogen and phosphorus content in water

DB37/T 343-2003 Determination method of phosphate content in cod and other aquatic products
DB37/T 2735-2015 Determination of ammonium sulfate content in dry powder fire extinguishing agent Total nitrogen content method

ES-UNE, Nitrogen and phosphorus content in water

UNE-EN 1136:1995 FRUIT AND VEGETABLE JUICES. DETERMINATION OF PHOSPHORUS CONTENT. SPECTROMETRIC METHOD.
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)

Jilin Provincial Standard of the People's Republic of China, Nitrogen and phosphorus content in water

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

国家质量监督检验检疫总局, Nitrogen and phosphorus content in water

SN/T 4590-2016 Determination of pyrophosphate, tripolyphosphate and trimetaphosphate content in exported aquatic products by ion chromatography

Zhejiang Provincial Standard of the People's Republic of China, Nitrogen and phosphorus content in water

DB33/ 887-2013 Indirect discharge limits of nitrogen and phosphorus pollutants from industrial enterprises wastewater
DB3301/T 1083-2018 Standardization of Nitrogen, Phosphorus and Potassium Fertilization Limits in Intensive Management of Thunder Bamboo Forest

VE-FONDONORMA, Nitrogen and phosphorus content in water

PH-BPS, Nitrogen and phosphorus content in water

PTS 123-1970 Standardization of the Method of Test for the Determination of Water-soluble Phosphorus Content of Fertilizers

未注明发布机构, Nitrogen and phosphorus content in water

BS EN 1136:1995(1999) Method for Determination of phosphorus content of fruit and vegetable juices : Spectrometric method
BS EN ISO 5983-1:2005(2009) Animal feeding stuffs — Determination of nitrogen content and calculation of crude protein content — Part 1 : Kjeldahl method

TN-INNORPI, Nitrogen and phosphorus content in water

Professional Standard - Commodity Inspection, Nitrogen and phosphorus content in water

SN/T 1083.2-2002 Determination of phosphorous content in coke

Professional Standard - Textile, Nitrogen and phosphorus content in water

FZ/T 50021-2014 Phosphorus flame-retardant chemical fiber products.Determination of the phosphorus content

Professional Standard - Military and Civilian Products, Nitrogen and phosphorus content in water

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

Professional Standard - Ferrous Metallurgy, Nitrogen and phosphorus content in water

YB/T 4530-2016 Nitrogen-bearing ferromanganese.Determination of nitrogen content.The distillation-neutralization titration method
YB/T 547.4-2014 Vanadium slag.Determination of phosphorus conten.Bismuth phosphomolybdate blue spectrophotometric method
YB/T 5340-2015 Ferrophosphorus.Determination of carbon content.Gas-volumetric method
YB/T 6088-2023 Determination of ferrosilicon nitride calcium, aluminum, chromium, manganese, titanium, phosphorus content by inductively coupled plasma atomic emission spectrometry

Professional Standard - Aviation, Nitrogen and phosphorus content in water

HB 5297.25-2001 Methods of chemical analysis of titanium alloys - Determination of nitrogen content by steam distillation

KR-KS, Nitrogen and phosphorus content in water

KS M ISO 4313-2003(2023) Washing powders－Determination of total phosphorus(V) oxide content－Quinoline phosphomolybdate gravimetric method
KS I ISO 15681-1-2010 Water quality－Determination of orthophosphate and total phosphorus contents by flow analysis(FIA and CFA)－Part 1：Method by flow injection analysis(FIA)
KS I ISO 15681-2-2010 Water quality－Determination of orthophosphate and total phosphorus contents by flow analysis(FIA and CFA)－Part 2：Method by continuous flow analysis(CFA)

Tianjin Provincial Standard of the People's Republic of China, Nitrogen and phosphorus content in water

DB12/T 955-2020 Determination of Nitrogen and Phosphorus in Dairy Farm Dung Water by Near Infrared Diffuse Reflectance Spectrometry

Military Standard of the People's Republic of China-General Armament Department, Nitrogen and phosphorus content in water

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

TH-TISI, Nitrogen and phosphorus content in water

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

American National Standards Institute （ANSI), Nitrogen and phosphorus content in water

ANSI/ASTM E2694:2011 Test Method for Measurement of Adenosine Triphosphate in Water-Miscible Metalworking Fluids

AT-ON, Nitrogen and phosphorus content in water

ONORM ISO 4313:1986 Washing powders; determination of total phosphorus(V)-oxide content; quinoline phosphomolybdate gravimetric method