Spectrophotometric Chlorine Dioxide

Spectrophotometric Chlorine Dioxide, Total:259 items.

The international standard classification for "Spectrophotometric Chlorine Dioxide" includes: Other methods of testing of metals , Lead, zinc, tin and their alloys , Other non-ferrous metals and their alloys , Bases , Chemical analysis of metals , Aluminium and aluminium alloys , Materials for aluminium production , Metalliferous minerals , General methods of tests and analysis for food products , Oxides , Non-metalliferous minerals , Chemical analysis , Other iron and steel products , Fissile materials , Workplace atmospheres , Nuclear energy engineering , Non-ferrous metals , Ambient atmospheres , Colours and measurement of light , Cadmium, cobalt and their alloys , Sterilization and disinfection , Ferroalloys , Ferrous metals in general , Connecting devices , Salts .

The Chinese standard classification for "Spectrophotometric Chlorine Dioxide" includes: Rare metals and their alloys analysis method , Heavy metals and their alloys analysis method , Rare refractory metals and their compounds , Light metals and their alloys analysis method , Rare light metals and their alloys , Metal physical property test method , Heavy metal ore , Basic standards and general methods , Inorganic chemicals in general , Grinding material and apparatus , Fermented wines , Chemical raw material ore , Building material raw material ore , Inorganic acid and alkali , Steel and iron alloy analysis method , Special electronic technology material , Beneficiation reagent , Nuclear material, nuclear fuel and their analytical test method , Light metal ore , Labor sanitation , Non-ferrous metals and their alloys products in general , Environmental sanitation , Rare scattered metals and their alloys , Basic standards and general methods for water treatment agent , Analysis methods for toxic substances in water , Radioactive metal ore , Metallurgical auxiliary material ore , Soil and fertilizer in general , , Light metals and their alloys , Nontechnical ore survey , Technical Management , Electrician alloy parts , Oxide and elementary substance .

Professional Standard - Non-ferrous Metal

YS/T 568.4-2006 Determination of Aluminum Content in Zirconia and Hafnium Oxide Absorptiometry of Chromazurin S-Tetradecylpyridinium Chloride
YS/T 534.4-2006 Chemical analysis methods of aluminium hydroxide. Determination of ferric oxide content. Orthophenanthroline photometric method
YS/T 715.3-2009 Methods for chemical analysis of selenium dioxide—Part 3:Determination of chlorine content—Silver chlorine turbidimetrion method
YS/T 509.6-2008 Methods for chemical analysis of spodumene and lepidolite concentrates-Determination of phosphorus pentoxide content-The molybdenum blue photometric method
YS/T 997.3-2014 Methods for chemical analysis of antimony-doped tin oxide—Part 3:Determination of chlorine content—Mercuric sulfocyanide spectrophotometry
YS/T 568.4-2008 Chemical analysis methods for zirconium oxide and hafnium oxide-Determination of aluminium content-Chronic azurol-S-tetradrcylpyridine chloride spectrophotometric method
YS/T 568.6-2008 Chemical analysis methods for zirconium oxide and hafnium oxide-Determination of titamium content-Diantipyrylmethane spectrophotometric method
YS/T 575.3-2006 Methods for chemical analysis of bauxite -- Determination of silicon dioxide content -- Molybdenum blue photometric method
YS/T 520.5-2006 Methods for chemical analysis of gallium. The N2O-C2H2 falme atomic absorption spectrophotometric method for the determination of calcium content
YS/T 581.7-2006 Determination of chemical contents and physical properties of aluminium fluoride Part 7: Determination of iron content by orthophenantholine photometric method
YS/T 37.1-2007 High pure germanium dioxide-Determination of chlorine content-Mercuric sulfocyanide spectrophotometric method
YS/T 568.6-2006 Determination of titanium content in zirconium oxide and hafnium oxide (diantipyridine methane absorptiometry)
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 445.17-2021 Methods for chemical analysis of silver concentrates Part 17: Determination of silica content Molybdenum blue spectrophotometry
YS/T 240.10-2007 Methods for chemical analysis of bismuth concentrate-Determination of aluminium oxide content-Chromazurol S spectrophotometric method
YS/T 461.5-2003 The methods for chemical analysis of lead and zine bulk concentrates - The determination of silicon dioxide content - The molybodenum blue spectrophotometric method
YS/T 568.11-2008 Chemical analysis methods for zirconium oxide and hafnium oxide-Determination of nickle content-α-Furil dioxime spectrophotometric method
YS/T 240.3-2007 Methods for chemical analysis of bismuth concentrate - Determination of silicon dioxide content-Molybdenum blue spectrophotometric method and gravimetric method
YS/T 37.2-1992 Chemical analysis method of high purity germanium dioxide Molybdenum blue spectrophotometry Determination of silicon content
YS/T 37.2-2007 High pure germanium dioxide - Determination of silicon content-Molybdenum blue spectrophotometric method
YS/T 555.2-2009 Methods for chemical analysis of molybdenum concentrate—Determination of silicon dioxide content—Silici molybdenum blue spectrophotometry and gravimetry
YS/T 990.12-2014 Methods for chemical analysis of copper matte―Part 12:Determination of aluminum oxide content―Spectrophotometry of chromazurol S
YS/T 534.4-2007 Chemical analysis methods of aluminium hydroxide Part 4: Determination of iron oxide content Orthophenanthroline photometric method
YS/T 575.5-2006 Methods for chemical analysis of bauxite -- Determination of iron oxide content -- Orthophenanthroline photometric method
YS/T 37.2-2018 Methods for chemical analysis of high pure germanium dioxide- Determination of silicon content by molybdenum blue spectrophotomertic method
YS/T 37.1-1992 High-purity germanium dioxide chemical analysis method mercury thiocyanate spectrophotometric determination of chlorine content
YS/T 534.3-2007 Chemical analysis methods of aluminium hydroxide Part 3: Determination of silicon dioxide content Molybdenum blue photometric method
YS/T 534.3-2006 Chemical analysis methods of aluminium hydroxide. Determination of silicon dioxide content. Molybdenum blue photometric method
YS/T 535.3-2024 Chemical analysis methods of sodium fluoride Part 3: Determination of silica content Molybdenum blue photometric method
YS/T 1149.7-2016 Methods for chemical analysis of zinc concentrate roasting—Part 7:Determination of silicon dioxide content—Molybdenum blue spectrophotometry

Professional Standard - Commodity Inspection

SN/T 0857-2000 Method for the determination of sulfur dioxide in beer for import and export—Spectrophotometry
SN/T 0481.10-2011 Methods of Inspection of Bauxite for Export - Part 10: Determination of SiO2, Fe2O3, Al2O3, CaO, MgO, K2O, P2O5 and TiO2 - X-Ray Fluorescence Spectrometric Method
SN/T 0770-1999 Determination of silicon oxide in middle carbon flake graphite—Molybdenum blue photometric method
SN/T 0480.8-1995 Method of analysis of baryte for export - Determination of ferric oxide by sulfosalicylic acid spectrophotometric method
SN/T 1097-2002 Determination of phosphorus pentoxide|| calcium oxide|| ferric oxide|| aluminum oxide|| magnesium oxide|| silicon dioxide and potassium oxide content for export phosphate rock by X-ray fluor
SN/T 1954-2007 Determination of chlorine dioxide residues in iced meat for import and export-Spectrophotometric method
SN/T 0485.2-1995 Methods for analysis of silicon dioxide content in talc for export - Polyepoxyethane coagulation gravimetric method-molybdenum blue spectrophotometry method for filtrate
SN/T 0837.4-2006 Determination of the amount of chlorine content in arsenic trioxide - Photometric method of distillation-mercuric thiocyanate
SN/T 0481.11-2011 Inspection of Bauxite for Import and Export - Part 11: Determination of Titanium Dioxide Content - Hydrogen Peroxide Spectrophotometric Method
SN/T 1043-2002 Determination of aluminium oxide in silicon carbide for import and export - Spectrophotometric method
SN/T 2949-2011 Determination of SiO2, Fe2O3, Al2O3, CaO, MgO contents in talc for export - X-ray fluorescence spectrometric method

Professional Standard - Nuclear Industry

EJ/T 1101-1999 Determination of ruthenium in natural uranium dioxide by catalysis colorinetry
EJ/T 992-1996 Spectrophotometric Determination of Molybdenum in Uranium Dioxide
EJ/T 1169-2004 Determination of bromine in uranium dioxide by spectrophotometry
EJ/T 991-1996 Spectrophotometric Determination of Titanium in Uranium Dioxide

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

GB/T 3286.2-2012 Methods for chemical analysis of limestone and dolomite - Part 2: The determination of silicon dioxide content - The silicomolybdic blue spectrophotometric method and the perchloric acid dehydration gravimetric method
GB/T 11845-1989 Uranium dioxide powder and pellets. Determination of tungsten. Spectrophotometric method
GB/T 8152.3-1987 Methods for chemical analysis of lead concentrates; The chromazurol S spectrophotometric method for the determination of aluminium (3) oxide content
GB/T 8152.14-2019 Methods for chemical analysis of lead concentrates—Part 14:Determination of silicon dioxide content—Molybdenum blue spectrophotometry
GB/T 8762.2-1988 Yttrium oxide and europium oxide of phosphor grade--Determination of calcium oxide content--N2O-C2H2 flame atomic absorption spectrophotometric method
GB/T 22660.7-2008 Chemical analysis methods of lithium fluoride - Part 7: Determination of iron content - Orthophenantholine photometric method
GB/T 3257.5-1999 Methods for chemical analysis of bauxite--Determination of iron oxide content--Orthophenanthroline photometric method
GB/T 16484.21-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 21:Determination of iron oxide content—1,10-phenanthroline spectrophotometry
GB/T 3253.2-2008 Methods for chemical analysis of antimony and antimony trioxide - Determination of iron content - Orthophenanthroline spectrophotometric method
GB/T 22660.6-2008 Chemical analysis methods of lithium fluoride - Part 6: Determination of silica content - Molybdenum blue photometric method
GB/T 11064.14-1989 Lithium carbonate--Determination of arsenic content--Molybdenum blue spectrophotometric method
GB/T 4375.5-1984 Methods for chemical analysis of gallium--The N2O-C2H2flame atomic absorption spectrophotometric method for the determination of calcium content
GB/T 21994.7-2008 Chemical analysis of magnesium fluoride - Part 7: Determination of iron content - Orthophenantholine photometric method
GB/T 26366-2021 Hygienic requirements for chlorine dioxide disinfectant
GB/T 11064.7-1989 Lithium carbonate,lithium hydroxide monohydrate and lithium chloride--Determination of iron content--1.10-phenanthroline spectrophotometric method
GB/T 11926-2025 Determination of phosphorus in uranium dioxide powder and pellets—Molybdenum blue spectrophotometric method
GB/T 7315.4-1987 Methods for chemical analysis of vanadium pentoxide--The coprecipitation-extraction molybdenum blue spectrophotometric method for the determination of phosphorus content
GB/T 11200.2-2008 Sodium hydroxide for industrial use - Determination of aluminium oxide content - Spectrometric method
GB/T 8151.4-1987 Methods for chemical analysis of zinc concentrates--The molybdenum blue spectrophotometric method for the determination of silica content
GB/T 11446.6-1997 Test method for SiO2 in electronic grade water by spectrophotometer
GB/T 23274.2-2009 Methods for chemical analysis of stannic oxide - Part 2: Determination of iron content - 1，10-phenanthroline photometric method
GB/T 11846-1989 Uranium dioxide powder and pellets--Determination of silicon--Spectrophotometric method
GB/T 11198.11-1989 Sulphuric acid for industrial use--Determination of oxides of nitrogen-2.4-xylenol spectrophotometric method
GB/T 18116.3-2000 Yttrium-europium oxide-Determination of europium oxide content-Fluorescent spectrophotometric method
GB/T 5195.8-1985 Methods for chemical analysis of fluor-spar--The molybdenum blue photometric method for the determination of silicon dioxide content
GB/T 7315.3-1987 Methods for chamical analysis of vanadium pentixide--The ortho-phenanthroline spectrophotometric method forthe determination of iron content
GB/T 21994.6-2008 Chemical analysis of magnesium fluoride - Part 6: Determination of silica content - Molybdenum blue photometric method
GB 6260-1986 Determination of rare earth oxide content in soil--Chlorophosphonazo-p-hippuric acid photometric 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 11898-1989 Water quality--Determinatoin of free chlorine and total chlorine--Spectrophotometric method useing N,N-diethyl-1,4 phenylenediamine
GB/T 11200.1-2006 Sodium hydroxide for industrial use - Determination of sodium chlorate content - O-Tolidine spectrometric method
GB/T 16484.4-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 4: Determination of thorium oxide content - ArsenazoⅢ spectrophotometry
GB/T 23274.3-2009 Methods for chemical analysis of stannic oxide - Part 3: Determination of arsenic content - Molybdoantimonyarsenate blue spectrophotometric method
GB/T 6609.15-1986 Methods for chemical analysis of aluminium oxide--The ferric thiocyanate photometric method for the determination of chlorine 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 1819.11-2004 Methods for chemical analysis of tin concentrates - Determination of aluminium oxide content - The chromazuzol S spectrophotometric method
GB/T 16032-1995 Workplace air--Determination of nitrogen oxides--Naphthyl ethylenediamine dihydrochloride spectrophotometric method
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 8913-1988 Hygienic determination method of sulfur dioxide in air of residential areas; Tetrachloromercurate (TCM)-pararosaniline spectrophotometric 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 41456-2022 Nanotechnologies—Determination of the concentration of nanometer titanium dioxide airborne dust in workplace—Spectrophotometry method
GB 11898-1989 Water quality-Determinatoin of free chlorine and total chlorine-Spectrophotometric method useing N,N-diethyl-1,4 phenylenediamine
GB/T 6610.4-2003 Chemical analysis methods of aluminium hydroxide Determination of ferric oxide content-Orthophenanthroline photometric method
GB/T 23362.5-2009 Methods for chemical analysis of high purity indium hydroxide - Part 5: Determination of chlorine content - Mercuric sulfocyanide spectrophotometry
GB/T 6609.17-1986 Methods for chemical analysis of aluminium oxide--The molybdenum blue photometric method for the determination of phosphorus pentoxide content
GB/T 16034-1995 Workplace air--Determination of arsenic trioxide and pentoxide--Silver diethyl dithiocarbamate spectrophotometric method
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 6609.16-1986 Methods for chemical analysis of aluminium oxide--The curcumin photometric method for the determination of boron trioxide content
GB 11843-1989 Determination of Nitrogen in Uranium Dioxide Powder and Pellets Spectrophotometric 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 11064.8-2013 Methods for chemical analysis of lithium carbonate,lithium hydroxide monohydrate and lithium chloride - Part 8: Determination of silicon content - Molybdenum blue spectrophotometric method
GB/T 23274.5-2009 Methods for chemical analysis of stannic oxide - Part 5: Determination of antimony content - Malachite green photometric method
GB/T 16101-1995 Workplace air―Determination of chloropicrin―Naphthyl ethylenediamine dihydrochloride spectrophotometric method
GB 11926-1989 Determination of Phosphorus in Uranium Dioxide Powder and Pellets Molybdenum Blue Spectrophotometry
GB/T 11926-1989 Uranium dioxide powder and pellet - Determination of phosphorus - Molybdenum blue spectrophotometric method
GB/T 22661.10-2008 Chemical analysis methods of potassium fluoborade - Part 10: Determination of phosphorus pentoxide content - Molybdenum blue photometric method
GB/T 11213.2-1989 Sodium hydroxide for chemical fiber use--Determination of sodium chloride content--Spectrometric method
GB/T 6610.3-2003 Chemical analysis methods of aluminium hydroxide-Determination of silicon dioxide content-Molybdenum blue photometric method
GB/T 2590.4-1981 Zirconium and hafnium oxides--Determination of aluminum content--Chromazurol S-tetradecyl pyridine bromide photometric method
GB/T 11064.8-1989 Lithium carbonate, lithium hydroxide monohydrate and lithium chloride--Determination of silicon content--Molybdenum blue spectrophotometric method
GB/T 11064.14-2013 Methods for chemical analysis of lithium carbonate,lithium hydroxide monohydrate and lithium chloride - Part 14: Determination of arsenic content - Molybdenum blue spectropotometic method
GB/T 12690.19-1990 Rare-earth metals and their oxides--Determination of iron content--1, 10-phenanthroline spectrophotometric method
GB/T 11064.7-2013 Methods for chemical analysis of lithium carbonate,lithium hydroxide monohydrate and lithium chloride - Part 7: Determination of iron content-1,10-phenanthroline spectrophotometric method
GB/T 11200.2-1989 Membrane process sodium hydroxide; Determination of aluminium oxide content-spectrometric method
GB/T 3253.1-2008 Methods for chemical analysis of antimony and antimony trioxide - Determination of arsenic content - Arsenic molybdenum blue spectrophotometric method
GB/T 3257.3-1999 Methods for chemical analysis of bauxite--Determination of silicon dioxide content--Molybdenum blue photometric method
GB/T 11843-2025 Determination of Nitrogen in Uranium Dioxide Powder and Pellets by Spectrophotometry
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 6609.21-2004 Chemical analysis methods and Determination of physical performance of alumina Determination of gallium trioxide content-Butyrhodamine B spectrophotometric method
GB/T 11846-2015 Determination of silicon in uranium dioxide powder and pellets by spectrophotometry
GB/T 11446.6-2013 Test method for SiO2 in electronic grade water by spectrophotometer
GB/T 7315.7-1987 Methods for chemical analysis of vanadium pentoxide-The AgDDTC spectrophotometric method for the determination of arsenic content
GB/T 2590.6-1981 Zirconium and hafnium oxides--Determination of titanium content--Diantipyrymethane photometric method
GB/T 7315.2-1987 Methods for chemical analysis of vanadium pentoxide--The molybdenum blue spectrophotometric method for the determination of silicon content
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 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 11213.2-2007 Sodium hydroxide for chemical fiber use—Determination of sodium chloride content—Spectrometric 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 6150.14-1985 Methods for chemical analysis of tungsten concentrates; The molybdenum blue photometric method for the determination of silicon dioxide content
GB/T 6609.21-2004 Chemical analysis methods and Determination of physical performance of alumina Determination of gallium trioxide content-Butyrhodamine B spectrophotometric method
GB/T 8152.3-2006 Methods for chemical analysis of lead concentrates - Determination of aluminium(III) oxide content - Chromazurol S spectrophotometric method
GB/T 1819.12-2017 Methods for chemical analysis of tin concentrates - Part 12: Determination of silicon dioxide content - The silicomolybdenum blue spectrophotometry and sodium hydroxide titration
GB/T 38216.1-2019 Steel slag—Determination content of chromic oxide—Diphenyl carbazide spectrophotometry method
GB 11845-1989 Determination of Tungsten in Uranium Dioxide Powder and Pellets Spectrophotometric Method
GB/T　6609.21-2004 Alumina chemical analysis method and physical property determination method Butyl rhodamine B spectrophotometric method Determination of gallium trioxide content
GB/T 23364.5-2009 Methods for chemical analysis of high purity indium oxide - Part 5: Determination of chlorine content - Mercuric sulfocyanide spectrophotometry
GB/T 1831-1979 Determination of silicon dioxide content in tin concentrates--Silicon molybdenum blue photometric 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 6150.12-2008 Methods for chemical analysis of tungsten concentrates - Determination of silicon dioxide content - The silicomolybdenum blue spectrophotometry and the gravimetry
GB/T 9489.3-1988 Determinations of Fe2O3,CaO,MgO,Na2O and K2O in alundum powder by atomic absorption spectrophotometry
GB/T 8151.4-2012 Methods for chemical analysis of zinc concentrates—Part 4:Determination of silicon dioxide content—Molybdenum blue spectrophotometry
GB/T 16036-1995 Workplace air--Determination of phosphorus pentoxide--Ammonium molybdate spectrophotometric method
GB/T 16633-1996 Industrial circulating cooling water--Determination of silica--Spectrophotometric method
GB/T 15057.5-1994 Limestone for chemical industry - Determination of silicon dioxide content- Molybdenum blue spectrophotometric method
GB/T 11843-1989 Uranium dioxide powder and pellets. Determination of nitrogen. Spectrophotometric method
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 1819.12-2004 Methods for chemical analysis of tin concentrates - Determination of silicon dioxide content - The silicomolybdenum blue spectrophotometric method
GB/T 1819.11-2017 Methods for chemical analysis of tin concentrates―Part 11:Determination of aluminium oxide content―Chromazuzal S spectrophotometric method

Professional Standard - Ferrous Metallurgy

YB/T 4219-2010 Vanadium pentoxide - Determination of phosphorus content –- The molybdobismuthylphosphoric blue spectrophotometric method
YB/T 5331-2006 Methods for chemical analysis of vanadium pentoxide The co-precipitation-extraction molybdenum blue spectrophotometric method for the determination of phosphorus content
YB 4013-1991 Chemical analysis method of high-quality magnesia, determination of iron oxide content by photometric method of phenanthroline
YB/T 6269-2024 Silicon Carbon Determination of Silicon and Silica Content Spectrophotometric Method
YB/T 5334-2006 Methods for chemical analysis of vanadium pentoxide The AgDDTC spectrophotometric method for the determination of arsenic content
YB/T 6037-2022 Determination of the contents of magnesium oxide, aluminum oxide, silicon dioxide, calcium oxide, titanium dioxide, chromium trioxide and ferric oxide in fused magnesia chromium sand by wavelength dispersive X-ray fluorescence spectrometry (fused plate me
YB/T 5334-2009 Vanadium pentoxid - Determination of arsenic content-The AgDDTC spectrophotometric method
YB/T 190.14-2023 Determination of Titanium Dioxide Content in Continuous Casting Mold Slag Diantipyrroline Methane Spectrophotometry
YB/T 5331-2009 Vanadium pentoxid - Determination of phosphorus content-The extraction molybdenum blue spectrophotometric method
YB/T 4009-1991 High-quality magnesia chemical analysis method Molybdenum blue photometric method for determination of silica content
YB/T 5329-2009 Vanadium pentoxide-Determination of silicon content-The molybdenum blue spectrophotometric method
YB/T 5330-2009 Vanadium pentoxid - Determination of iron content-The ortho-phenanthroline spectrophotome method
YB/T 5329-2006 Methods for chemical analysis of vanadium pentoxide The molybdenum blue spectrophotometric method for the determination of silicon content
YB/T 5335-2006 Methods for chemical analysis of vanadium pentoxide The atomic absorption spectrophotometric method for the determination of sodium oxide and potassium oxide contents
YB/T 4724-2018 Steel slag. Determination of silicon dioxide content. Perchloric acid dehydrate gravimetric analysis & silicon molybdenum blues photometry method
YB/T 5043-2012 Molybdenum Oxide - Determination of Phosphoru Content - Spectrophotometric Method of Extraction of N-butyl Alcohol-trichloromethane
YB/T 4726.3-2021 Ferric-containing dust and sludge-Determination of titanium dioxide content-Diantipyrylmethane spectrophotometric method
YB/T 5330-2006 Methods for chemical analysis of vanadium pentoxide The ortho-phenanthroline spectrophotometric method for the determination iron content
YB 4009-1991 High-quality magnesia chemical analysis method Molybdenum blue photometric method for determination of silica content

Professional Standard - Environmental Protection

HJ 586-2010 Water quality-Determination of free chlorine and total chlorine-Spectrophotonetric method N,N-diethyl-1,4-phenylenediamine
HJ 479-2009(XG1-2018) Determination of nitrogen oxides (nitrogen monoxide and nitrogen dioxide) in ambient air Spectrophotometric method of naphthalene ethylenediamine hydrochloride "No. 1 Amendment"
HJ 546-2015 Ambient air - Determination of phosphorus pentoxide -Molybdenum blue spectrophotometric method
HJ 483-2009 Ambient air - Determination of sulfur dioxide - Tetrachloromercurate (TCM) -pararosaniline method
HJ 483-2009(XG1-2018) Determination of sulfur dioxide in ambient air Tetrachloromercuric salt absorption-pararosaniline spectrophotometric method "No. 1 Amendment"
HJ 479-2009 Ambient air - Determination of nitrogen oxides - N-(1-naphthyl) ethylene diamine dihydrochloride spectrophotometric method

Professional Standard - Water Conservancy

SL 91.1-1994 Determination of silica (dissolver) (Hetropoly blue method)
SL 91.2-1994 Determination of silica (dissolved) (Hetropoly blue method)

Professional Standard - Electron

SJ/T 10898-1996 Determination of iron oxide and titania in electronic glass - Photometric method

Professional Standard - Urban Construction

CJ/T 141-2001 Urban water supply—Determination of silica dioxide—Molybdosilicate blue method

Professional Standard - Geology

DZ/T 0454.2-2023 Chemical analysis method of ilmenite Part 2: Determination of titanium dioxide content Hydrogen peroxide spectrophotometry

Hebei Provincial Standard of the People's Republic of China

DB13/T 2473-2017 Determination of Arsenic Content in Vanadium Pentoxide by Atomic Fluorescence Spectrometry

Professional Standard - Machinery

JB/T 8228-1995 Optical parts are coated with titanium dioxide, silicon dioxide and three-layer spectroscopic film (R:T=1:1) using hydrolysis method
JB/T 7777.3-1995 Silver tin oxide indium oxide electrical contact materials chemical analysis method dimethylglyoxime spectrophotometric determination of nickel content
JB/T 7777.3-2008 Test methods for chemical analysis of silver-tin oxide-indium oxide electric contact material-Part 3:Determination of nickel content

Taiwan Provincial Standard of the People's Republic of China

CNS 8442-1982 Method for Determination of Titanium Oxide in Feldspar (Diantipyrylmenthane Absorptiometric Method)
CNS 10181-1983 Method for Determining Titanium Dioxide in Iron Ores (Diantipyrylmethane Absorptiometric Method)
CNS 8441-1982 Method for Determination of Iron Oxide in Feldspar (O - Phenanthroline Absorptiometric Method)
CNS 8438-1982 Method for Determination of Silicon Dioxide in Feldspar (Flocculation Gravimetric and Absorptiometic Method)
CNS 9423-1982 Method for Determining Iron Oxide in Dolomite (O - Phenanthroline Absorptiometric Method)
CNS 8437-1982 Method for Determination of Silicon Dioxide in Feldspar (Dehydration Gravimetric and Absorptiometic Method)

National Health Commission of the People's Republic of China

GB 8913-1988 Hygienic standard test method for sulfur dioxide in the atmosphere of residential areas

Group Standards of the People's Republic of China

T/SDAQI 035-2021 Determination of iron oxide content in bauxite Sulfosalicylic acid spectrophotometric method
T/GXAS 475-2023 Determination of soluble silica content in sugarcane juice—spectrophotometric method
T/LNEMA 012-2024 Determination of nitrogen dioxide in ambient air - Passive absorption sampling - spectrophotometry

Professional Standard - Chemical Industry

HG/T 4213-2011 Phosphorus oxychloride for industrial use-Determination of iron content-spectrophotometric method

Heilongjiang Provincial Standard of the People's Republic of China

DB23/T 3328-2022 Spectrophotometric Method of Trace Phosphorus Trioxide Chromium Azure S in Natural Flake Graphite

Professional Standard - Agriculture

NY/T 30-1986 Determination of rare earth oxide content in soil - Chlorophonazo - P - Hippuric acid photometric method

Inner Mongolia Provincial Standard of the People's Republic of China

DB15/T 688.2-2014 Methods for Chemical Analysis of Thorium Dioxide Powders Part 2: Determination of Phosphorus in Thorium Dioxide Powders—Phosphorus Molybdenum Blue Photometric Method

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

GJB 5969.5-2007 Test methods for microsphere uranium dioxide with coated niobium for submarine nuclear power plant.Part 5:Determination of tungsten by zinate toluol-3,4-dithiol.trichloromethane extraction spedrophotometry

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

GJB 8793.5-2015 Testing method for niobium-coated uranium dioxide microspheres used in submarine nuclear power plants. Part 5: Determination of tungsten. Zinc dithiophene salt-chloroform extraction spectrophotometry.

American Water Works Association (AWWA)

AWWA JAW6244 Journal AWWA — Spectrophotometric Determination of Chlorine Dioxide
AWWA ACE58336 Effects of the Cl2O4- Complex on the Spectrophotometric Measurement of Chlorine Dioxide
AWWA JAW60489 Journal AWWA — Chlorite Ion Interference in the Spectrophotometric Measurement of Chlorine Dioxide
AWWA ACE70556 Chlorine Dioxide: Spectrophotometric Methods Alternative to DPD for the Determination of Residual Disinfectant and Its Byproduct Concentrations

Gosstandart of Russia

GOST R 52144-2003 Zinc concentrates. Spectrophotometric method of silicon dioxide content determination
GOST 32518.2-2013 Iron ores, concentrates, agglomerates and pellets. Determination of silica spectrophotometric method
GOST 23201.2-1978 Alumina. Method of spectral analysis. Determination of vanadium pentoxide, manganese suboxide, chromium oxide, titanium dioxide and zinc oxide

Association Francaise de Normalisation

NF X20-357:1976 Dioxide sulphur determination by spectrophotometry using pararosanilin.
NF T20-430:1976 Sodium hydroxyde for industrial use. Determination of chlorides content. Photometric method.
NF T20-375:1977 Potassium hydroxide for industrial use. Determination of chlorides content. Photometric method.
NF T20-499:1979 Condensed phosphates for industrial use (including foodstuffs). Determination of oxides of nitrogen content. 3,4-xylenol spectrophotometric method.
NF T20-383:1977 Potassium hydroxide for industrial use. Determination of silica content. Reduced molybdosilicate photometric method.
NF T20-424:1976 Sodium hydroxyde for industrial use. Determination of silica content. Reduced silicomolybdic complex photometric method.
NF X43-339*NF ISO 11564:2000 Stationary source emissions - Determination of the mass concentration of nitrogen oxides - Naphthylethylenediamine photometric method.
NF X43-013:1977 Atmospheric pollution.determination of the concentration by mass ofsulphur dioxide, in the ambient air.analysis by the thorin spectrophotometric method.
NF T20-206:1973 Aluminium oxide primarily used for the production of aluminium. Determination of silica. Spectrophotometric method as the reduced silicomolybdate complex.

International Organization for Standardization (ISO)

ISO 6767:1990 Ambient air; determination of the mass concentration of sulfur dioxide; tetrachloromercurate (TCM)/pararosaniline method
ISO 3177:1975 Potassium hydroxide for industrial use; Determination of chlorides content; Photometric method
ISO 11564:1998 Stationary source emissions - Determination of the mass concentration of nitrogen oxides - Naphthylethylenediamine photometric method
ISO 3197:1975 Sodium hydroxide for industrial use; Determination of chlorides content; Photometric method
ISO 2369:1972 Aluminium fluoride for industrial use; Determination of silica content; Spectrophotometric method using the reduced silicomolybdic complex

Korean Agency for Technology and Standards (KATS)

KS I ISO 6767:2006 Ambient air－Determination of the mass concentration of sulphur dioxide [Tetrachloromercurate (TCM)/pararosaniline method]
KS M ISO 1232:2003 Aluminium oxide primarily used for the production of aluminium－Determination of silica content－Reduced molybdosilicate spectrophotometric method
KS M ISO 2828-2003(2023) Aluminum oxide for aluminum production - Determination of fluorine content - Alizarin complexone and lanthanum chloride spectrophotometry
KS I ISO 11564:2014 Stationary source emissions — Determination of the mass concentration of nitrogen oxides(naphthylethylenediamine photometric method)
KS M ISO 1232-2003(2018) Determination of aluminum oxide silica content for aluminum production - reduced molybdosilicate spectrophotometry
KS I ISO 11564:2004 Stationary source emissions-Determination of the mass concentrationof nitrogen oxides(Naphthylethylenediamine photometric method)
KS I ISO 4221-2021 Air quality－Determination of mass concentration of sulphur dioxide in ambient air(Thorin spectrophotometric method)
KS M ISO 2828:2003 Aluminium oxide primarily used for the production of aluminium－Determination of fluorine content－Alizarin complexone and lanthanum chloride spectrophotometric method

Czech Standards Institute (UNMZ)

CSN 42 0647 Cast.5-1989 Chemical analysis of non-ferrous metals and alloys. Tungsten. Determination of silicon dioxide by the photometric method
CSN 70 0660 Cast.1-1976 Glass testing. Chemical analysis of glass. Determination of chromium sesquioxide. Photometric method
CSN 65 1054-1981 Aluminium oxide. Determina- ion of manganese /II/ oxide tomic absorption and photo- etric methods
CSN 65 1059-1987 Aluminum oxide. Determination of copper (II) oxide. Atomic absorption spectrometry and photometric method
CSN 65 2474-1981 Sodium Chloride (Salt) Photometric Method oí Basic Calcium Phosphate Content Determination
CSN 70 0629 Cast.1-1990 Glass testing methods. Chemical analysis of glass. Determination of titanium dioxide. Photometric method with tiron
CSN 65 1055-1981 Aluminium oxide, Determina- oin of zinc oxide. Atomic bsorption, photometric and olarografie methods
CSN 70 0629 Cast.2-1976 Chemical analysis of glass. Determinat- ion of titanium dioxide. Photometric method with chromotropic acid
CSN 44 1874-1982 Bauxite. Determination of titanium dioxide The photometric method
CSN 70 0624 Cast.1-1978 Chemical analysis of glass. Determination of phosphorus pentoxide. Photometric method with molybdovanadic reagent
CSN 44 1880-1984 Bauxite Determination of phosphorus pentoxide. Photometric method.

National Standardisation Body (ASRO)

STAS SR 12271-13-1995 Uranium dioxyde Spectrophotometric ctetermination of molybdenum
STAS SR ISO 12271-15:1995 Uranium dioxyde Spectrophotometric determination of thorium
STAS SR ISO 1620:1995 Cryolite, natural and artificial — Determination of silica content — Reduced molybdosilicate spectrophotometric method
STAS SR 12271-14-1995 Uranium dioxyde Spsctrophotornetric determination of nichel

Yugoslav Association for Standardization

JUS E.L8.020-1993 Sugars -Determination of sulphur-dioxide - Photometric method
JUS H.F8.153-1986 Gases. Determination of carbon dioxid content. Infrared spectrophotometric method
JUS H.B8.636-1981 Sulphuric acid for industrial u se. Determination of oxides of nitrogen. 2,4-xyleno/ spectrophotometric method
JUS H.B8.043-1991 Liquid hydrocarbons. Determination of total chloride content. Spectrophotonetric method
JUS H.G8.265-1987 Reagents. Barium chloride dihydrate. Determination of sodium and potasium contents. Flame emission spectrophotometric method

Standards Norway

NS 9053:1981 Sodium hydroxide for industrial use — Determination of chlorides content — Photometric method

Indonesia Standards

SNI 06-4824-1998 Test methods for free chlorine content in water by visible light spectrophotometers in diethyl phenylendiamine (DPD)

Belgian Standards Institute

NBN T 03-418-1983 Aluminium oxide primarily used for the production of aluminium - Determination of fluorine content - Alizarin complexone and lanthanum chloride spectrophotometric method
NBN T 03-197-1980 Potassium hydroxide for industrial use - Determination of chlorides content - Photometric method

Polski Komitet Normalizacyjny (PKN)

PN Z04194-02-1988 Air punty protection Tests for phthalic anhydride Determination of phthalic anhydride in work places by spectrophotometric method with hydroxylamine hydrochloride and ferric chloride

Universal Oil Products Company (UOP)

UOP 803-1984 Spectrophotometric Determination of Chlorination Color in Phenol

Bureau of Indian Standards

IS 1917-7-2001 Chemical Analysis of Quartzite and High Silica Sand - Part 7 Determination of Titania by Spectrophotometric Method

The Directorate General of Specifications and Metrology (DGSM)

OS GSO ISO 21079-3:2015 Chemical analysis of refractories containing alumina, zirconia, and silica -- Refractories containing 5 percent to 45 percent of ZrO2 (alternative to the X-ray fluorescence method) -- Part 3: Flame atomic absorption spectrophotometry (FAAS) and inductivel
OS GSO ISO 4221:2009 Air quality - Determination of mass concentration of sulphur dioxide in ambient air - Thorin spectrophotometric method

COMMISSION FOR THE STANDARDS, METROLOGY AND QUALITY OF VIETNAM (STAMEQ)

TCVN 6225-1-2012 Water quality Determination of free chlorine and total chlorine.Part 1: Titrimetric method using N,N-diethyl-1,4-phenylenediamine

Kingdom of Bahrain Testing and Metrology Directorate

BH GSO ISO 21079-3:2017 Chemical analysis of refractories containing alumina, zirconia, and silica -- Refractories containing 5 percent to 45 percent of ZrO2 (alternative to the X-ray fluorescence method) -- Part 3: Flame atomic absorption spectrophotometry (FAAS) and inductivel

Türk Standardları Enstitüsü

TS 2918-1978 PHOSPHORIC ACID FOR INDUSTRIAL USE (INCLUDING FOODSTUFFS) — DETERMINATION OF OXIDES OF NITROGEN CONTENT — 3,4 — XYLENOL SPECTROPHOTOMETRY

Swedish Institute for Standards

SS-ISO 1232:1993 Aluminium oxide primarily used for the productionof aluminium - Determination of silica content - Reduced molybdosilicate spectrophotometric method

German Institute for Standardization

DIN ISO 4221:1990-05 Air quality - Determination of sulfur dioxide mass concentration in ambient air - Thorinium spectrophotometric method

Association of German Mechanical Engineers

VDI 2451 BLATT 3-1996 Measuring gaseous emissions — Measuring sulphur dioxide concentration — Photometric method (TCM method)

Spanish Association for Standardization (UNE)

UNE 77203:1993 AIR QUALITY. DETERMINATION OF MASS CONCENTRATION OF SULPHUR DIOXIDE IN AMBIENT AIR. THORIN SPECTROPHOTOMETRIC METHOD.

American Society for Testing and Materials (ASTM)

ASTM E463-14a Standard Test Method for Determination of Silica in Fluorspar by Silico-Molybdate Visible Spectrophotometry