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COD method

COD method, Total:326 items.

In the international standard classification, COD method involves: Water quality, Analytical chemistry, Burners. Boilers, Coals, Non-ferrous metals, Inorganic chemicals, Welding, brazing and soldering, Textile fibres, Power stations in general, Products of the chemical industry, Metalliferous minerals, Non-metalliferous minerals, Refractories, Wastes, Electronic display devices, Electrical accessories, Ferroalloys, Testing of metals, Ferrous metals, Air quality, Products of the textile industry, Glass, Cutting tools, Ceramics, Powder metallurgy, Fertilizers.

Professional Standard - Coal, COD method

MT/T 369-1994 Determination method of chemical oxygen demand in coal mine water
MT/T 369-2008 Determination of chemical oxygen demand of coal mine water (method of potassium pemanganate)
MT/T 1046-2007 Determination of chemical oxygen demand of coal mine water (method of potassium dichromate)

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, COD method

GB/T 14420-2014 Analysis of water used in boiler and cooling system.Determination of chemical oxygen demand.Rapid method with potassium dichromate
GB/T 14420-1993 Analysis of water used in boiler and cooling system. Determination of chemical oxygen demand. Rapid method with potassium dichromate
GB/T 18116.2-2008 Chemical analysis methods of yttrium-europium oxides.Determination of europium oxides
GB/T 6609.5-1986 Methods for chemical analysis of aluminium oxide--The flame photometric method for the determination of sodium oxide content
GB/T 6609.6-1986 Methods for chemical analysis of aluminium oxide--The flame photometric method for the determination of potassium oxide content
GB/T 6610.5-2003 Chemical analysis methods of aluminium hydroxide-Determination of sodium oxide content
GB/T 12690.4-1990 Cerium oxide--Determination of lanthanum oxide, praseodymium oxide, neodymium oxide, samarium oxide and yttrium oxide contents--Spectrochemical method
GB/T 12690.9-1990 Neodymium oxide--Determination of lanthanum oxide, cerium oxide, praseodymium oxide, samarium oxide and yttrium oxide contents--Spectrochemical method
GB/T 4372.1-1984 Methods for chemical analysis of zinc oxide(direct process)--The potassium ferrocyanide volumetric method for the determination of zinc oxide content
GB/T 4372.1-2001 Methods for chemical analysis of zinc oxide produced by direct process--Determination of zinc oxide content-Na2EDTA titration method
GB/T 6609.3-1986 Methods for chemical analysis of aluminium oxide--The molybdenum blue photometric method for the determination of silicon dioxide content
GB/T 18116.3-2000 Yttrium-europium oxide-Determination of europium oxide content-Fluorescent spectrophotometric method
GB/T 6609.2-1986 Methods for chemical analysis of aluminium oxide--The gravimetric method for the determination of loss content on ignition
GB/T 3253.8-2009 Methods for chemical analysis of antimony and antimony trioxide.Determination of antimony trioxide content.Iodine titration method
GB/T 6609.17-1986 Methods for the chemical analysis of aluminium oxide--The molybdenum blue photometric method for the determination of phosphorus pentoxide content
GB/T 6609.1-1986 Methods for chemical analysis of aluminium oxide--The gravimetric method for the determination of moisture
GB/T 3254.1-1998 Antimony trioxide--Determination of antimony trioxide content
GB/T 4372.2-1984 Methods for chemical analysis of zinc oxide(direct process)--The phosphoric acid supporting electrolyte polarographic methods for the determination of lead oxide and cadmium oxide contents
GB/T 6610.2-2003 Chemical analysis methods of aluminium hydroxide-Determination of the loss of mass at 1100°C--Gravimetric method
GB/T 15917.1-1995 Dysprosium and dysprosium oxide--Determination of gadolinium oxide, terbium oxide, holmium oxide, erbium oxide and yttrium oxide contents--Emission spectrographic method
GB/T 6609.16-1986 Methods for the chemical analysis of aluminium oxide--The curcumin photometric method for the determination of boron trioxide content
GB/T 6609.4-1986 Methods for chemical analysis of aluminium oxide--The orthophenanthroline photometric method for the determination of ferric oxide content
GB/T 6610.3-2003 Chemical analysis methods of aluminium hydroxide-Determination of silicon dioxide content-Molybdenum blue photometric method
GB/T 6609.5-2004 Chemical analysis methods and determination of physical performance of alumina Determination of sodium oxide content
GB/T 3286.1-1998 Methods for chemical analysis of limestone and dolomite--The determination of calcium oxide and magnesium oxide content
GB/T 15076.14-2008 Method for chemical analysis of tantalum and niobium.Determination of oxygen content
GB/T 15076.14-1994 Methods for chemical analysis of tantalum and niobium-Determination of oxygen content
GB/T 6610.1-2003 Chemical analysis methods of aluminium hydroxide-Determination of moisture-Gravimetric method
GB/T 4372.3-2001 Methods for chemical analysis of zinc oxide produced by direct process--Determination of copper oxide content--Atomic absorption spectrometry method
GB/T 4372.2-2001 Methods for chemical analysis of zinc oxide produced by direct process--Determination of lead oxide content--Atomic absorption spectrometry method
GB/T 4372.4-2001 Methods for chemical analysis of zinc oxide produced by direct process--Determination of cadmium oxide content--Atomic absorption spectrometry method
GB/T 6609.12-1986 Methods for the chemical analysis of aluminium oxide--The atomic absorption spectrophotometric method for the determination of zinc oxide content
GB/T 6609.13-1986 Methods for the chemical analysis of aluminium oxide--The atomic absorption spectrophotometric method for the determination of calcium oxide content
GB/T 6609.7-1986 Methods for chemical analysis of aluminium oxide--The trioctylphosphine oxide-thiocyanate photometric method for the determination of titanium dioxide content
GB/T 12690.2-1990 Lanthanum oxide--Determination of neodymium oxide, cerium oxide, praseodymium oxide, samarium oxide and yttrium oxide contents-Emission spectrographic method
GB/T 12690.6-1990 Praseodymium oxide--Determination of lanthanum oxide, cerium oxide, neodymium oxide, samarium oxide and yttrium oxide contents--Emission spectrographic method
GB/T 12690.10-1990 Gadolinium oxide--Determination of samarium oxide, europium oxide, terbium oxide, dysprosium oxide and yttrium oxide contents--Emission spectrographic method
GB/T 3884.4-2000 Methods for chemical analysis of copper concentrates Determination of magnesium oxide content
GB/T 3254.3-1998 Antimony trioxide--Determination of lead content
GB/T 14949.3-1994 Manganese ores- Determination of barium oxide contet
GB/T 3254.2-1998 Antimony trioxide--Determination of arsenic content
GB/T 3254.6-1998 Antimony trioxide--Determination of selenium content
GB/T 3254.5-1998 Antimony trioxide--Determination of iron content
GB/T 3254.4-1998 Antimony trioxide--Determination of copper content
GB/T 4102.12-1983 Methods for chemical analysis of high-titanium slag and rutile--The EDTA and CyDTA volumetric methods for the determination of calcium oxide and magnesium oxide content
GB/T 26305-2010 The method for chemical of nickel oxide.Determination of nickel content.Electrolytic depositiono method
GB/T 6609.11-1986 Methods for the chemical analysis of aluminium oxide--The atomic absorption spectrophotometric method for the determination of manganous oxide content
GB/T 7315.8-1987 Methods for chemical analysis of vanadium pentoxide--The atomic absorption spectrophotometric method for the determination of sodium oxide and potassium oxide contents
GB/T 7315.5-1987 Methods for chemical analysis of vanadium pentoxide--The barium svlphate gravimetric method for the determination of sulphur content
GB/T 5687.1-1985 Methods for chemical analysis of ferro-chromium--The ammonium persulfate oxidation volumetric method for the determination of chromium content
GB/T 5195.9-1985 Methods for chemical analysis of fluor-spar--The gravimetric method for the determination of silicon dioxide content
GB/T 16484.3-1996 Methods for chemical analysis of rare earth chloride and carbonate--Determination of lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, europium oxide and yttrium content
GB/T 6609.6-2004 Chemical analysis methods and determination of physical performance of alumina Determination of potassium oxide content-Flame photometric method
GB/T 4372.1-2014 Methods for chemical analysis of zincoxide produced by direct process.Part 1:Determination of zinc oxide content.Na<下标2>EDTA titration method
GB/T 8151.4-2000 Methods for chemical analysis of zinc concentrates -Determination of silicon dioxide content
GB/T 15079.2-1994 Molybdenum concentrates-Determination of silicon oxide content
GB/T 14949.11-1994 Manganese ores- Determination of carbon dioxide content
GB/T 6609.3-2004 Chemical analysis methods and Determination of physical performance of alumina Determination of silicon dioxide content-Molybdenum blue photometric method
GB/T 4102.8-1983 Methods for chemical analysis of high-titanium slag and rutile--The EDTA volumetric method for the determination of aluminium oxide content
GB/T 4102.7-1983 Methods for chemical analysis of high-titanium slag and rutile--The gravimetric method for the determination of silicon dioxide content
GB/T 13246-1991 Refractories containing carbon--Determination of magnesium oxide content--CYDTA volumetric method
GB/T 6901.6-1986 Silica refractories--Determination of aluminium oxide content--EDTA volumetric method
GB/T 12690.3-1990 Cerium and cerium oxide--Determination of lanthanum oxide, praseodymium oxide, neodymium oxide, samarium oxide and yttrium oxide contents--Emission spectrographic method
GB/T 12690.5-1990 Praseodymium oxide--Determination of lanthanum oxide, cerium oxide, neodymium oxide, samarium oxide and yttrium oxide contents--X ray fluorescence spectrometric method
GB/T 12690.8-1990 Neodymium and neodymium oxide--Determination of lanthanum oxide, cerium oxide, praseodymium oxide, samarium oxide and yttrium oxide contents--Emission spectrographic method
GB/T 12690.29-2000 Rare earth metals and their oxide Determination of cerium oxide content-Fluorescent spectrophotometric method
GB/T 6609.6-2018 Chemical analysis methods and determination of physical performance of alumina.Part 6:Determination of potassium oxide content
GB/T 12690.11-1990 Terbium oxide--Determination of lanthanum oxide,cerium oxide,praseodymium oxide,neodymium oxide,samarium oxide,europium oxide,gadolinium oxide,dysprosium oxide,holmium oxide,erbium oxide and yttrium oxide contents--Emission spectrographi
GB/T 6610.4-2003 Chemical analysis methods of aluminium hydroxide Determination of ferric oxide content-Orthophenanthroline photometric method
GB/T 6609.8-1986 Methods for chemical analysis of aluminium oxide--The diphenyl carbazide photometric method for the determination of chromium sesquioxide content
GB/T 6609.34-2009 Chemical analysis methods and determination of physical performance of alumina.Part 34:Method of calculating alumina content
GB/T 6609.9-2004 Chemical analysis methods and determination of physical performance of alumina Determination of cupric oxide content-2,9-Dimethyl-1,10phenanthroline photometric method
GB/T 18116.1-2012 Yttrium-europium oxide.Determination of lanthanum oxide,cerium oxide,praseodymium oxide,neodymium oxide,samarium oxide,gadolinium oxide,terbium oxide,dysprosium oxide,holmium oxide,erbium oxide,thulium oxide,ytterbium oxide and lutetium oxide contents
GB/T 18114.3-2000 Methods for chemical analysis of monazite concentrates-Determination of calcium oxide content
GB/T 18114.5-2000 Methods for chemical analysis of monazite concentrates-Determination of zirconium oxide content
GB/T 18114.4-2000 Methods for chemical analysis of monazite concentrates-Determination of titanium oxide content
GB/T 18114.2-2000 Methods for chemical analysis of monazite concentrates-Determination of thorium oxide content
GB/T 18114.6-2000 Methods for chemical analysis of monazite concentrates-Determination of sillicon oxide content
GB/T 14840-2010 Methods for chemical analysis of limestones.Determination of free silicon dioxide content
GB/T 18114.9-2000 Methods for chemical analysis of monazite concentrates-Determination of phosphor oxide content
GB/T 18114.8-2000 Methods for chemical analysis of monazite concentrates-Determination of yttrium oxide content
GB/T 18114.7-2000 Methode for chemical analysis of monazite concentrates-Determination of iron oxide content
GB/T 16480.3-1996 Method for chemical analysis of yttrium and yttrium oxide.Determination of fluorine content
GB/T 16480.4-1996 Method for chemical analysis of yttrium and yttium oxide.Determination of sulphur content
GB/T 3257.1-1999 Methods for chemical analysis of bauxite--Determination of aluminium oxide content-EDTA titrimetric method
GB/T 7315.6-1987 Methods for chemical analysis of vanadium pentoxide--The oscillopolarographic method for the determination of sulphur content
GB/T 6609.15-1986 Methods for the chemical analysis of aluminium oxide--The ferric thiocyanate photometric method for the determination of chlorine content
GB/T 6609.2-2004 Chemical analysis methods and Determination of physical performance of alumina Determination of the loss of mass at 1100°C-Gravimetric method
GB/T 4372.3-1984 Methods for chemical analysis of zinc oxide(direct process)--The biscyclohexanone oxalyl dihydrazone photometric method for the determination of copper oxide content
GB/T 7315.1-1987 Methods for chemical analysis of vanadium pentoxide--The potassium permanganate oxidation-ammonium ferrous sulfate titrimetric method for the determination of vanadium pentoxide content
GB/T 12690.27-1990 Rare-earth metals and their oxides--Determination of ignition loss--Gravimetric method
GB/T 223.4-1988 Methods for chemical analysis of iron, steel and alloy--The volumetric method for determination of manganese content by ammonium nitrate oxidation
GB/T 16555.4-1996 Chemical analysis for silicon carbide refractories--Determination of alumina--EDTA gas volumetric method
GB/T 12690.1-1990 Lanthanum oxide--Determination of cerium oxide, praseodymium oxide, nedeodynium oxide, samarium oxide and yttrium oxide--Induetively coupled plasma atomic emission spectrographic method
GB/T 14506.11-2010 Methods for chemical analysis of silicate rocks.Part 11:Determination of potassium oxide and sodium oxide content
GB/T 16555.6-1996 Chemical analysis for silicon carbide refractories--Determination of silicon dioxide
GB/T 3257.9-1999 Methods for chemical analysis of bauxite--Determination of potassium oxide and sodium oxide content--Flame atomic absorption spectrophotometric method
GB/T 23274.1-2009 Methods for chemical analysis of stannic oxide.Part 1:Determination of stannic oxide content.Potassium iodate titrimetric method
GB/T 1819.13-2004 Methods for chemical analysis of tin concentrates Determination of magnesium oxide and calcium oxide contents-Flame atomic absorption spectrometric method
GB/T 16480.1-1996 Method for chemical analysis of yttrium and yttrium oxide--Determination of lanthanum oxide,cerium oxide,praseodymium oxide,neodymium oxide,samarium oxide,europium oxide, gadolinium oxide,terbium oxide,dysprosium oxide,holmium oxide,erbium oxide,thulium o
GB/T 5121.8-1996 Copper and copper alloys--Determination of oxygen content
GB/T 11064.10-1989 Lithium carbonate and lithium hydroxide monohydrate--Determination of chloride content--Mercurmetric method
GB/T 11064.2-1989 Lithium carbonate--Determination of lithium hydroxide content--Acid-alkali titrimetric method
GB/T 11064.12-1989 Lithium hydroxide monohydrate--Determination of carbon dioxide content--Absorption titrimetric method
GB/T 20166.1-2006 Chemical analysis methods of rare earth polishing powder.Determination of cerium oxide content.Titrimetric analysis method
GB 5124.4-1985 Methdos for chemical analysis of hardmetals－The photometric peroxide method for the determination of titanium content
GB/T 7315.7-1987 Methods for chemical analysis of vanadium pentoxide--The AgDDTC spectrophotometric method for the determination of arsenic content
GB/T 6150.14-1985 Methods for chemical analysis of tungsten concentrates--The molybdenum blue photometric method for the determination of silicon dioxide content
GB/T 5124.4-1985 Methods for chemical analysis of hardmetals--The photometric peroxide method for the determination of titanium content
GB/T 12690.7-1990 Neodymium and neodymium oxide--Determination of lanthanum oxide, cerium oxide, praseodymium oxide, samarium oxide, yttrium oxide contents--X-ray fluorescence spectrometric method
GB/T 3257.2-1999 Methods for chemical analysis of bauxite--Determination of silicon dioxide content--Gravimetric-molybdenum blue photometric method
GB/T 223.11-1991 Methods for chemical analysis of iron,steel and alloy--The ammonium persulfate oxidation volumetric method for the determination of chromium content
GB/T 12687.1-1990 Chemical analysis of nitrate of rare earth for agriculture--Determination of total rare earth oxide content--Gravimetric method
GB/T 23364.6-2009 Methods for chemical analysis of high purity indium oxide.Part 6:Determination of the loss on ignition.Gravimetric analysis
GB/T 23513.5-2009 Chemical analysis methods for germanium concentrate.Part 5:Determination of silica content.Gravimetry
GB/T 3286.3-1998 Methods for chemical analysis of limestone and dolomite--The determination of aluminium oxide content
GB/T 3286.4-1998 Methods for chemical analysis of limestone and dolomite--The determination of iron oxide content
GB/T 3286.5-1998 Methods for chemical analysis of limestone and dolomite--The determination of manganese oxide content
GB/T 6609.1-2004 Chemical analysis methods and Determination of physical performance of alumina Determination of moisture-Gravimetric method
GB/T 6609.19-2004 Chemical analysis methods and determination of physical performance of alumina Determination of lithia content-Flame atomic absorption spectrophotometric method
GB/T 6609.20-2004 Chemical analysis methods and determination of physical performance of alumina Determination of magnesia content-Flame atomic absorption spectrophotometric method
GB/T 6609.17-2004 Chemical analysis methods and determination of physical performance of alumina Determination of phosphorus pentoxide content-Molybdenum blue spectrophotometric method
GB/T 6609.12-2004 Chemical analysis methods and determination of physical performance of alumina Determination of zinc oxide content-Flame atomic absorption spectrophotometric method
GB/T 6609.13-2004 Chemical analysis methods and determination of physical performance of alumina Determination of calcium oxide content-Flame atomic absorption spectrophotometric method
GB/T 6609.20-2004 Methods for chemical analysis of alumina and methods for determining physical properties
GB/T 3885.11-1983 Methods for chemical analysis of spodumenite and lepidolite concentrates--The persulfate oxidation photometric method for the determination of manganous oxide content
GB/T 6900.5-1986 Fireclay and high-alumina refractories--Determination of titanium dioxide content--Hydrogen peroxide photometric method
GB 6900.5-1986 Clay, high alumina refractories chemical analysis method hydrogen peroxide photometric determination of titanium dioxide content
GB/T 6609.10-1986 Methods for the chemical analysis of aluminium oxide--The N-benzoyl-N-phenylhydroxylamine extraction photometric method for the determination of vanadic oxide content
GB/T 6609.9-1986 Methods for chemical analysis of aluminium oxide--The lead diethyldithiocarbamate photometric method for the determination of cupric oxide content
GB/T 18115.1-2000 Lanthanum oxide-Determination of cerium oxide,praseodymium oxide,neodymium oxide,samarium oxide,europium oxide,gadolinium oxide,terbium oxide,dysprosium oxide,holmium oxide,erbium oxide,thulium oxide,ytterbium oxide,lutetium oxide and yttrium oxide conten
GB/T 18115.2-2000 Cerium oxide-Determination of lanthanum oxide,praseodymium oxide,neodymium oxide,samarium,oxide,europium oxide,gadolinium oxide,terbium oxide,dysprosium oxide,holmium oxide,erbium oxide,thulium oxide,ytterbium oxide,lutetium oxide and yttrium oxide conten
GB/T 18115.5-2000 Samarium oxide-Determination of lanthanum oxide,cerium oxide,praseodymium oxide,neodymium oxide,europium oxide,gadolinium oxide,terbium oxide,dysprosium oxide,holmium oxide,erbium oxide,thulium oxide,ytterbium oxide,lutetium oxide and yttrium oxide conten
GB/T 8762.8-2000 Europium oxide-Determination of lanthanum oxide,cerium oxide,praseodymium oxide,neodymium oxide,samarium oxide,gadolinium oxide,terbium oxide,dysprosium oxide,holmium oxide,erbium oxide,thulium oxide,ytterbium oxide,lutetium oxide and yttrium oxide conten
GB/T 18115.6-2000 Gadolinium oxide-Determination of lanthanum oxide,cerium oxide,praseodymium oxide,neodymium oxide,samarium oxide europium oxide,terbium oxide,dysprosium oxide,holmium oxide,erbium oxide,thulium oxide,ytterbium oxide,lutetium oxide and yttrium oxide conten
GB/T 18115.7-2000 Terbium oxide-Determination of lanthanum oxide,cerium oxide,praseodymium oxide,neodymium oxide,samarium oxide,europium oxide,gadolinium oxide,dysprosium oxide,holmium oxide,erbium oxide,thulium oxide,ytterbium oxide,lutetium oxide and yttrium oxide conten
GB/T 18115.9-2000 Holmium oxide-Determination of lanthanum oxide,cerium oxide,praseodymium oxide,neodymium oxide,samarium oxide,europium oxide,gadolinium oxide,terbium oxide,dysprosium oxide,erbium oxide,thulium oxide,ytterbium oxide,lutetium oxide and yttrium oxide conten
GB/T 18115.8-2000 Dysprosium oxide-Determination of lanthanum oxide,ceriurm oxide,praseodymium oxide,neodymium oxide,samarium oxide,eueropium oxide,gadolinium oxide,terbium oxide,holmium oxide,erbium oxide,thulium oxide,ytterbium oxide,luteclum oxide and yttrium oxide cont
GB/T 18115.4-2000 Neodynium oxide-Determination of lanthanum oxide,cerium oxide,praseodymium oxide,samarium oxide,europium oxide,gadolinium oxide,terbium oxide,dysprosium oxide,holmium oxide,erbium oxide,thulium oxide,ytterbium oxide,lutetium oxide and yttrium oxide conten
GB/T 18115.10-2000 Erbium oxide-Determination of lanthanum oxide,cerium oxide,praseodymium oxide,neodymium oxide,samarium oxide,europium oxide,gadolinium oxide,terbium oxide,dysprosium oxide,holmium oxide,thulium oxide,ytterbium oxide,lutetium oxide and yttrium oxide conten
GB/T 18115.3-2000 Praseodymium oxide-Determination of lanthanum oxide,cerium oxide,neodymium oxide,samarium oxide,europium oxide,gadolinium oxide,terbium oxide, dysprosium oxide,holmium oxide,erbium oxide,thulium oxide,ytterbium oxide,lutetium oxide and yttrium oxide conte
GB/T 16484.7-1996 Methods for chemical analysis of rare earth chloride and carbonate--Determination of magnesium oxide content
GB/T 16484.6-1996 Methods for chemical analysis of rare earth chloride and carbonate--Determination of calcium oxide content
GB/T 16484.11-1996 Methods for chemical analysis of rare earth chloride and carbonate--Determination of lead oxide content
GB/T 16484.10-1996 Methods for chemical analysis of rare earth chloride and carbonate--Determination of manganese oxide content
GB/T 16484.8-1996 Methods for chemical analysis of rare earth chloride and carbonate--Determination of sodium oxide content
GB/T 16484.9-1996 Methods for chemical analysis of rare earth chloride and carbonate--Determination of nichel oxide content
GB/T 16484.2-1996 Methods for chemical analysis of rare earth chloride and carbonate--Determination of europium oxide content
GB/T 16484.4-1996 Methods for chemical analysis of rare earth chloride and carbonate--Determination of thorium oxide content
GB/T 16484.1-1996 Method for chemical analysis of rare earth chloride and carbonate--Determination of cerium oxide content
GB/T 12690.14-1990 Lanthanum oxide, cerium oxide, neodymium oxide, gadolinium oxide--Determination of cobalt, iron,manganese, nichel, copper, ckromium, lead and zinc in oxides contents--Emission spectrographic method
GB/T 4372.4-1984 Methods for chemical analysis of zinc oxide(direct process)--The potassium periodate photometric method for the determination of manganese content
GB/T 4372.5-2001 Methods for chemical analysis of zinc oxide produced by direct process--Determination of zinc oxide manganese content--Atomic absorption spectrometry method
GB/T 6609.16-2004 Chemical analysis methods and determination of physical performance of alumina Determination of boron trioxide content-Curcumin spectrophotometric method
GB/T 6609.11-2004 Chemical analysis methods and determination of physical performance of alumina Determination of manganous oxide content-Flame atomic absorption spectrophotometric method
GB/T 6609.4-2004 Chemical analysis methods and determination of physical performance of alumina Determination of ferric oxide content-Orthophenanthroline photometric method

HU-MSZT, COD method

Indonesia Standards, COD method

SNI 06-4421-1997 Test methods of chemical oxygen by open reflux
SNI 07-1167-1989 Aluminium and aluminium alloys, Chemical test method for determination of silicon contents

SE-SIS, COD method

SIS SS 02 81 43 E-1979 Vattenunders?kningar — Best?mning av biokemisk oxygenf?rbrukning, BOD, hos vatten — Utsp?dningsmetod
SIS SS 02 81 88-1987 Determination of dissolved oxygen content in water - Electrochemical method

国家安全生产监督管理总局, COD method

MT/T 369-2007 Determination of chemical oxygen consumption in coal mine water by potassium permanganate method

Japanese Industrial Standards Committee (JISC), COD method

JIS K 0806:1997 Automatic chemical oxygen demand meter

Professional Standard - Non-ferrous Metal, COD method

YS/T 568.1-2008 Chemical analysis methods for zirconium oxide and hafnium oxide.Determination of zirconium oxide and hafnium oxide total content.Mandelic acid gravimetric method
YS/T 534.5-2006 Determination of sodium oxide content by chemical analysis method of aluminum hydroxide
YS/T 534.2-2006 Aluminum Hydroxide Chemical Analysis Method Gravimetric Determination of Ignition Loss
YS/T 534.3-2006 Aluminum Hydroxide Chemical Analysis Method Molybdenum Blue Photometric Determination of Silica Content
YS/T 534.1-2006 Aluminum Hydroxide Chemical Analysis Method Gravimetric Determination of Moisture
YS/T 568.3-2008 Chemical analysis methods for zirconium oxide and hafnium oxide.Determination of silicon content.Spectrophotometric method with the reduced silicomolybdic complex
YS/T 534.5-2007 Chemical analysis methods of aluminium hydroxide.Part5:Determination of sodium oxide content
YS/T 445.6-2001 Methods for chemical analysis of silver concentrates--Determination of magnesium oxide content
YS/T 514.12-2006 High titanium slag, rutile chemical analysis method EGTA and CyDTA volumetric method to determine calcium oxide and magnesium oxide content
YS/T 424.5-2000 Methods for chemical analysis of titanium diboride powder.Determination of oxygen content
YS/T 555.2-2006 Method for chemical analysis of molybdenum concentrate Determination of silica content
YS/T 568.5-2008 Chemical analysis methods for zirconium oxide and hafnium oxide.Determination of sodium content.Flame atomic absorption spectrometric method
YS/T 568.10-2008 Chemical analysis methods for zirconium oxide and hafnium oxide.Determination of manganese content.Potassium periodate spectrophotometric method
YS/T 514.7-2006 High titanium slag, rutile chemical analysis method gravimetric determination of silicon dioxide content
YS/T 514.8-2006 High titanium slag, rutile chemical analysis method EDTA volumetric method for determination of alumina content
YS/T 568.2-2008 Chemical analysis methods for zirconium oxide and hafnium oxide.Determination of iron content.Sulfosal icylic acid spectrophotometric method
YS/T 534.4-2006 Aluminum Hydroxide Chemical Analytical Method for the Determination of Ferric Oxide by O-Phenanthrophenanthrene Spectrophotometry
YS/T 445.4-2001 Methods for chemical analysis of silver concentrates--Determination of oxide aluminum content
YS/T 423.5-2000 Methods for chemical analysis of nuclear-grade boron carbide powder.Determination of oxygen content
YS/T 341.3-2006 Methods for chemical analysis of nickel concentrates-Determination of magnesia content-EDTA-titration method
YS/T 426.6-2000 Method for chemical analysis of antimony-beryllium pellets.Determination of beryllium oxide content.Bromine methanol method
YS/T 575.1-2006 Determination of Alumina Amount by EDTA Titration Method for Chemical Analysis of Bauxite Ore
YS/T 534.2-2007 Chemical analysis methods of aluminium hydroxide.Part 2:Determination of the loss of mass at 1100℃.Gravimetric method
YS/T 1014.1-2014 Methods for chemical analysis of bismuth trioxide.Part 1:Determination of bismuth trioxide content.Na<下标2>EDTA titrimetric method
YS/T 629.3-2007 Chemical analysis methods of high purity alumina.Determination of sodium oxide.Flame atomic absorption spectrophotometric method
YS/T 629.4-2007 Chemical analysis methods of high purity alumina.Determination of potassium oxide.Flame atomic absorption spectrophotometric method
YS/T 534.3-2007 Chemical analysis methods of aluminium hydroxide.Part 3:Determination of silicon dioxide content.Molybdenum blue photometric method
YS/T 575.9-2006 Methods of chemical analysis of bauxite ore - Determination of potassium oxide and sodium oxide by flame atomic absorption spectrometry
YS/T 1014.5-2014 Chemical analysis methods of bismuth trioxide.Part 5:Determination of moisture.Gravimetric method
YS/T 254.1-1994 Methods for chemical analysis of beryllium concentrates-beryl The phosphate gravimetric method for the determination of beryllium oxide content
YS/T 254.2-1994 Methods for chemical analysis of beryllium concentrates-beryl The EDTA volumetric method for the determination of ferric sesquioxide content
YS/T 575.2-2006 Method for chemical analysis of bauxite ore gravimetric-molybdenum blue photometric method for determination of silica content
YS/T 568.6-2008 Chemical analysis methods for zirconium oxide and hafnium oxide.Determination of titamium content.Diantipyrylmethane spectrophotometric method
YS/T 509.11-2006 Method for chemical analysis of spodumene and lepidolite concentrates—Determination of persulfate oxidation photometry—Manganese oxide content

Professional Standard - Machinery, COD method

JB/T 7948.12-1999 Methods for chemical analysis of melted welding fluxes.The EDTA volumatric method for determination of calcium oxide and magnesium oxide content
JB/T 7948.12-1995 Methods for chemical analysis of melted welding fluxes.The EDTA volumatric method for determination of calcium oxide and magnesium oxide content
JB/T 7777.1-1995 Silver tin oxide indium oxide electrical contact material chemical analysis method iodometric method for determination of tin content
JB/T 7777.2-1995 Silver tin oxide indium oxide electrical contact material chemical analysis method DETA volumetric method for determination of indium content
JB/T 7948.9-1999 Methods for chemical analysis of melted welding fluxes.The flame photometric method for determination of sodium oxide and potassium oxide content
JB/T 7948.1-1999 Methods for chemical analysis of melted welding fluxes.The gravimetric method for determination of silicon dioxide content
JB/T 7948.4-1999 Methods for chemical analysis of melted welding fluxes.The EDTA volumetric method for determination of aluminium oxide content
JB/T 7948.1-1995 Methods for chemical analysis of melted welding fluxes.The gravimetric method for determination of silicon dioxide content
JB/T 7948.7-1995 Methods of Chemical Analysis of Soldering Flux Part 7: Determination of Sodium Oxide and Potassium Oxide
JB/T 7948.9-1995 Soldering Flux Chemical Analysis Methods Part 9: Determination of Calcium Oxide and Magnesium Oxide
JB/T 7777.1-2008 Test methods for chemical analysis of silver-tin oxide-indium oxide electric contact material.Part 1:Determination of tin content
JB/T 7777.2-2008 Test method for chemical analysis of silver-tin oxide-indium oxide electric contact materials.Part 2:Determination of indium
JB/T 7774.1-1995 Silver Zinc Oxide Electrical Contact Material Chemical Analysis Method EDTA Volumetric Method Determination of Zinc Content
JB/T 7777.4-1995 Silver tin oxide indium oxide electrical contact material chemical analysis method PAN spectrophotometric determination of zinc content
JB/T 5204-2007 Chemical analysis methods for silicon carbide deoxyden
JB/T 5204-1991 Chemical analysis method of silicon carbide deoxidizer
JB/T 7948.2-1999 Methods for chemical analysis of melted welding fluxes.The potentiometric method for determination of manganese oxide content
JB/T 9548.6-1999 Methods for chemical analysis of iron-chromium-aluminium alloys.The persulfate oxidation volumetric method for the determination of chromium content
JB/T 7948.2-1995 Methods of chemical analysis of fluxes - Part 2: Determination of manganese oxide content
JB/T 7948.4-1995 Methods of Chemical Analysis of Soldering Fluxes Part 4: Determination of Iron Oxide Content
JB/T 7948.3-1995 Methods of Chemical Analysis of Solder Fluxes Part 3: Determination of Aluminum Oxide Content

RU-GOST R, COD method

GOST 31859-2012 Water. Method for determination of chemical oxygen demand
GOST R 52708-2007 Water. Method for determination of chemical oxygen demand

国家市场监督管理总局、中国国家标准化管理委员会, COD method

GB/T 37632-2019 Man-made fiber—Test method for titanium dioxide content
GB/T 38389-2019 Methods for chemical analysis of indium-tin oxide target

Professional Standard - Textile, COD method

FZ/T 50027-2015 Man-made fibres.Test method for determination of the titanium dioxide content
FZ/T 10022-2013 Test method for determination of chemical oxygen demand/biochemical oxygen demand after 5 days of the sizes used in textile warp sizing

TR-TSE, COD method

TS 568-1967 METHODS OF CHEMICAL ANALYSIS OF MANGANESE ORES DETERMINATION OF CALCIUM OXIDE CONTENT AND MAGNESIUM OXIDE CONTENT
TS 2789-1977 Methods For The Analysis Of Water Determintaion Of Chemical Oxygen Demand Content
TS 3335-1979 METHODS FOR THE CHEMICAL ANALYSISOF CERAMIC WHITAWARE CLAYS- DETERMINATION OF POTASSIUM OXIDESODIUM OXIDE CONTENTS
TS 2979-1978 METHOD FOR THE CHEMICAL ANALYSIS OF GLASS SAND DETERMINATION OF SILICON DIOXIDE CONTENT
TS 599-1968 METHODS OF CHEMICAL ANALYSIS OF MANGANESE ORES DETERMINATION OF BARIUM OXH>E CONTBNT
TS 3080-1978 Methods For The Chemical Analysis Of Ceramic Whiteware Clays Determinat?on of Silicon Dioxi- de, Total R2 O3, Iron - 3 - Oxide, Titanium Dioxide, Aluminum - 3 - Ox?de, Calcium Ox?de And Magnesium Oxide Contents

Professional Standard - Electricity, COD method

DL/T 502.22-2006 Analytical methods of steam and water in power plants Part.22: Determination of chemical oxygen demand (Potassium per-chlorate method)
DL/T 502.23-2006 Analytical methods of steam and water in power plants.Part 23: Determination of chemical oxygen demand (Potassium dichromate method)

International Organization for Standardization (ISO), COD method

ISO/R 552:1966 Methods of chemical analysis of manganese ores — Determination of calcium oxide content and magnesium oxide content

Professional Standard - Ferrous Metallurgy, COD method

YB/T 159.6-1999 Methods for chemical analysis of titanium concentrate (rock minerals).The EGTA-CyDTA volumetric method for the determination of calcium oxide and magnesium oxide content
YB/T 1596-1999 Chemical analysis method of titanium concentrate (rock ore) EGTA-CyDTA volumetric method for determination of calcium oxide and magnesium oxide content
YB/T 191.5-2001 Methods for chemical analysis of chromium ores.The EDTA titrimetric method for the determination of calcum oxide and magnesium oxide content
YB/T 4005-1991 Determination of calcium oxide content by EDTA volumetric method for chemical analysis of high-quality magnesia
YB 4005-1991 Determination of calcium oxide content by EDTA volumetric method for chemical analysis of high-quality magnesia
YB/T 5038-1993 Molybdenum Oxide Block Chemical Analysis Method Gravimetric Determination of Wet Storage Water
YB/T 5335-2006 Method for chemical analysis of vanadium pentoxide - Determination of potassium oxide and sodium oxide by atomic absorption spectrophotometry
YB/T 5332-2006 Method for chemical analysis of vanadium pentoxide - Determination of sulfur content by barium sulfate gravimetric method
YB/T 4078.2-2003 Chemical analysis of zirconia refractories-Part 2:Determination of zirconia oxide-EDTA volumetric method
YB/T 5039-1993 Molybdenum oxide block chemical analysis method Determination of molybdenum by lead molybdate gravimetric method
YB/T 5040-1993 Molybdenum oxide block chemical analysis method barium sulfate gravimetric method for determination of sulfur
YB/T 4010-1991 Determination of Magnesium Oxide by Subtraction Method for Chemical Analysis of High Quality Magnesia
YB 4010-1991 Determination of Magnesium Oxide by Subtraction Method for Chemical Analysis of High Quality Magnesia
YB/T 5333-2006 Vanadium Pentoxide Chemical Analysis Method Oscillopolarographic Determination of Sulfur Content
YB/T 5328-2006 Vanadium pentoxide chemical analysis method Potassium permanganate oxidation-ferrous ammonium sulfate titration method to determine the amount of vanadium pentoxide
YB/T 547.2-1995 Methods for chemical analysis of vanadium slag the perchloric acid dehydration gravimetric method for the determination of silicon dioxide content
YB/T 4078.1-2003 Chemical analysis of zirconia refractories-Part 1:Determination of zirconia oxide-Mandelic acid gravimetric method
YB/T 191.2-2001 Methods for chemical analysis of chromium ores----Titrimetric method for the determination of oxidation chromium content
YB/T 5334-2006 Vanadium Pentoxide Chemical Analysis Method AgDDTC Spectrophotometric Determination of Arsenic Content
YB/T 5041-1993 Molybdenum Oxide Block Chemical Analysis Method Combustion-Potassium Iodate Volumetric Method for Determination of Sulfur
YB/T 4008-1991 Method for chemical analysis of magnesia - Determination of free calcium oxide by ethylene glycol hydrochloric acid volumetric method
YB 4008-1991 Method for chemical analysis of magnesia - Determination of free calcium oxide by ethylene glycol hydrochloric acid volumetric method

未注明发布机构, COD method

DIN EN 14211:2005 Air quality — measurement method for determining the concentration of nitrogen dioxide and nitrogen monoxide using chemiluminescence
BS 6068-2.34:1988(2011) Water quality — Part 2 : Physical, chemical and biochemical methods — Section 2.34 Method for the determination of the chemical oxygen demand

Professional Standard - Geology, COD method

DZ/T 0064.70-1993 Groundwater quality inspection method - Determination of chemical oxygen demand by dichromate oxidation method
DZ/T 0064.68-1993 Groundwater quality inspection method Determination of chemical oxygen demand by acidic permanganate oxidation method
DZ/T 0064.69-1993 Groundwater quality inspection method Alkaline permanganate oxidation method for determination of chemical oxygen demand

Professional Standard - Commodity Inspection, COD method

SN/T 1031.3-2001 Method for the chemical analysis of crude antimony trioxide for export.Determination of antimony trioxide content
SN/T 1031.1-2001 Method for the chemical analysis of crude antimony trioxide for export.Determination of mercury content
SN/T 1031.2-2001 Method for the chemical analysis of crude antimony trioxide for export.Determination of total antimony content
SN/T 1031.4-2001 Method for the chemical analysis of crude antimony trioxide for export.Determination of fluorine content
SN/T 1031.5-2001 Method for the chemical analysis of crude antimony trioxide for export.Determination of selenium content
SN/T 1031.6-2001 Method for the chemical analysis of crude antimony trioxide for export.Determination of lead and iron contents
SN/T 1031.7-2003 Methods for chemical analysis of crude antimony trioxide for import and export-Determination of arsenic content

工业和信息化部/国家能源局, COD method

JB/T 7948.9-2017 Flux chemical analysis methods Part 9: Determination of calcium oxide and magnesium oxide content
JB/T 7948.7-2017 Flux chemical analysis methods Part 7: Determination of sodium oxide and potassium oxide content
JB/T 7948.2-2017 Methods for chemical analysis of fluxes Part 2: Determination of manganese oxide content
JB/T 7948.4-2017 Methods for chemical analysis of fluxes Part 4: Determination of iron oxide content
JB/T 7948.3-2017 Methods for chemical analysis of fluxes Part 3: Determination of aluminum oxide content

American Society for Testing and Materials (ASTM), COD method

ASTM D1252-95 Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water
ASTM D1252-06(2020) Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water
ASTM D1252-06(2012)e1 Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water
ASTM D6697-01 Standard Test Method for Determination for Chemical Oxygen Demand (Manganese III Oxygen Demand) of Water
ASTM D1252-06(2012) Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water
ASTM D1252-00 Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water
ASTM D1252-06 Standard Test Methods for Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water

British Standards Institution (BSI), COD method

BS 6068-2.34:1988 Water quality - Physical, chemical and biochemical methods - Method for the determination of the chemical oxygen demand
BS 6068 Sec.2.34:1988 Water quality. Physical, chemical and biochemical methods. Method for the determination of the chemical oxygen demand
BS EN 14211:2005 Ambient air quality - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence

Korean Agency for Technology and Standards (KATS), COD method

KS D ISO 12169-2001(2011) Nickel oxide－Determination of nickel content－Electrolytic deposition method
KS L 3415-2006 Methods for chemical analysis of refractories containing alumina and magnesia
KS L 3414-2006 Methods for chemical analysis of refractories containing alumina, zirconia and silica
KS D 2586-2011 Methods for determination of oxygen in zirconium and zirconium alloys
KS D 2588-1995 Method for chemical analysis of trimanganese tetroxide for ferrite
KS L 2308-2010 Method for chemical analysis of soda-lime-magnesia-silica glasses
KS L 6101-1999(2009) Method for chemical analysis of alumina abrasives
KS L 3415-2006(2021) Methods for chemical analysis of refractories containing alumina and magnesia
KS L 3414-2006(2021) Methods for chemical analysis of refractories containing alumina, zirconia and silica

Association Francaise de Normalisation, COD method

NF A06-725:1992 Analyse chimique du cuivre - Dosage de l'oxygène - Méthode instrumentale.
NF EN 14211:2012 Air ambiant - Méthode normalisée pour le mesurage de la concentration en dioxyde d'azote et monoxyde d'azote par chimiluminescence

工业和信息化部, COD method

HG/T 5966-2021 Determination method of chemical oxygen demand of high chlorine waste liquid
HG/T 6109-2022 Determination method of chemical oxygen demand (COD) in waste sulfuric acid
XB/T 625-2020 Chemical analysis method of rare earth composite yttrium-zirconium ceramic materials. Determination of titanium oxide, aluminum oxide, sodium oxide and iron oxide content.
YS/T 1467.10-2021 Hafnium Chemical Analysis Methods Part 10: Determination of Oxygen and Nitrogen Amounts
JC/T 2407-2017 Chemical analysis method of zinc oxide for ceramics
JB/T 5204-2018 Chemical analysis method of silicon carbide deoxidizer
YS/T 1207-2017 Chemical analysis method for the amount of ruthenium in alumina-based ruthenium materials Determination of the amount of ruthenium Hydrogen reduction gravimetric method

Professional Standard - Electron, COD method

SJ/T 10087.5-1991 Methods for chemical analysis of litharge
SJ/T 10087.6-1991 Methods for chemical analysis of ceriumhydrate

YU-JUS, COD method

JUS B.G8.363-1977 Zine concentrates. Methods of chemkalanalysis. Determination of calcium oxide
JUS B.G8.364-1977 Zine concentrates. Methods of chemkalanalysis. Determination of magnesium oxide
JUS B.G8.362-1977 Zine concentrates. Methods of chemical anatysis. Determination of silica

AT-ON, COD method

ONORM M 5876-1999 Measurement of the oxygen content of water and waste water - Continuous electrochemical method

Military Standard of the People's Republic of China-Commission of Science,Technology and Industry for National Defence, COD method

GJB 5381.23-2005 Methods of chemical analysis for pyrotech. Part 23: Determination of manganese dioxide content. Oxidation reduction method
GJB 5381.24-2005 Methods of chemical analysis for pyrotech. Part 24: Determination of ferriferous oxide and ironic oxide content. Oxidation reduction method

German Institute for Standardization, COD method

DIN EN 14211:2012-11 Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence; German version EN 14211:2012 / Note: To be replaced by DIN EN 14211 (2022-11).
DIN EN 14211:2022-11 Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence; German and English version prEN 14211:2022 / Note: Date of issue 2022-09-30*Intended as replacement for DIN EN 14211 ...

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

GJB 8682.23-2015 Methods of chemical analysis of pyrotechnic powders Part 23: Determination of manganese dioxide content Oxidation-reduction method
GJB 8682.24-2015 Methods for chemical analysis of pyrotechnic powders Part 24: Determination of ferric oxide and ferric oxide content Oxidation-reduction method

Danish Standards Foundation, COD method

DS 275:1984 Chemical oxygen demand. Permanganate method
DS/EN 14211:2012 Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence

Yunnan Provincial Standard of the People's Republic of China, COD method

DB53/T 639.1-2014 Methods for chemical analysis of direct reduced iron - Part 1: Determination of calcium oxide, magnesium oxide, aluminum oxide content by EDTA titration

Lithuanian Standards Office , COD method

LST EN 14211-2012 Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence

European Committee for Standardization (CEN), COD method

prEN 14211 Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence

AENOR, COD method

UNE-EN 14211:2013 Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence

机械电子工业部, COD method

JB 5204-1991 Chemical analysis method of silicon carbide deoxidizer

CZ-CSN, COD method

CSN 44 1870-1983 Bauxite. Determination of calcium oxide and magnesium oxide. Atomic absorption and chelometric methods.

Professional Standard - Chemical Industry, COD method

HG/T 2516-2005 Analytical method of chemical composition in the catalyst oxidizing sulphuric dioxide into sulphuric acid
HG/T 2516-2013 Analytical method of chemical composition in the catalyst oxidizing sulphuric dioxide into sulphuric acid