Azo compound spectrophotometry

Azo compound spectrophotometry, Total:106 items.

The international standard classification for "Azo compound spectrophotometry" includes: Flow in open channels , Chemical analysis of metals , Ferrous metals , Aluminium and aluminium alloys , Metalliferous minerals , Cereals, pulses and derived products , Iron ores , Other non-ferrous metals and their alloys , Cadmium, cobalt and their alloys , Ferroalloys , Materials for aerospace construction , Aluminium , Water quality , Materials for aluminium production .

The Chinese standard classification for "Azo compound spectrophotometry" includes: Analysis methods for toxic substances in water , Light metals and their alloys analysis method , Heavy metals and their alloys analysis method , Rare metals and their alloys analysis method , Heavy metals and their alloys , Heavy metal ore , Cereal crop and forage crop in general , Iron ore , Steel and iron alloy analysis method , Soil and fertilizer in general , Precious metals and its alloy analysis method , Analysis methods for exhaust emission pollutants , Carbon material , Electrician alloy parts , Chemical Measurement .

Ministry of Ecology and Environment of the People's Replublic of China

GB 11889-1989 Water quality-Determination of aniline compounds-Spectrophotometric method with N-(1-naphthyl) eth

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

GB/T 6730.37-1986 Methods for chemical analysis of iron ores--The 4-[(5-chloro-2-pyridyl)azo]-1,3-diaminobenzene photometric method for the determination of cobalt content
GB/T 6730.24-2025 Iron ores—Determination of total rare earth contents—Arsenazo III spectrophotometric method
GB/T 11198.11-1989 Sulphuric acid for industrial use--Determination of oxides of nitrogen-2.4-xylenol spectrophotometric method
GB 223.33-1984 Methods for chemical analysis of iron, steel and alloy--The chlorophosphonazo mA photometric method for the determination of cerium content after extraction separation
GB/T 6730.24-2006 Iron ores - Determination of total rare earth contents - Chlorophosphonazo mA spectrophotometric method
GB/T 223.33-1994 Methods for chemical analysis of iron, steel and alloy The chlorophosphonazo mA photometric method for the determination of cerium content after extraction separation
GB 11067.4-1989 Silver—Determination of antimony content—2-(5-bromo-2-pyridylazo)-5-diethylaminophenol spectrometric method
GB/T 6730.44-1986 Methods for chemical analysis of iron ores--The 1-(2-pyridylazo)-2-naphthol photometric method for the determination of zinc content
GB/T 4325.15-1984 Methods for chemical analysis of molybdenum;The chlorophosphonazo 1 photometric method for the determination of magnesium content
GB/T 4699.3-2007 Ferrochromium silicochromium and nitrogen-bearing ferrochromium—Determination of phosphorus content—Molybdobismuthylphosphoric blue spectrophotometric method and the molybdenum blue s
GB/T 13748.5-1992 Magnesium and its alloys--Determination of iron content--Orthophenanthroline spectrophotometric method
GB/T 11067.4-1989 Silver-Determination of antimony content-2-(5-bromo -2-pyridylazo)-5-diethylaminophenol spectrophotometricmethod
GB/T 6730.44-2017 Iron ores―Determination of zinc content―1-(2-pyridylazo)-2-naphthol spectrophotometric method
GB/T 6730.24-1986 Methods for chemical analysis of iron ores; The arsenazo 3 photometric method for the determination of rare earth elements content
GB/T 6730.89-2024 Iron ores—Determination of thorium content—Arsenazo Ⅲ spectrophotometric method
GB 223.30-1984 Methods for chemical analysis of iron,steel and alloy--The arsenazo 3 photometric method for the determination of zirconium content after separation by p-bromomandelic acid
GB/T 13747.2-1992 and zirconium alloys - Determination of iron content-1, 10-phenanthroline spectrophotometric method
GB/T 6987.24-2001 Aluminium and aluminium alloys. Determination of copper content. Tribromoarsenazo spectrophotometric method
GB/T 4375.2-1984 Methods for chemical analysis of gallium;The 4-(2-pyridylazo)-resorcinol photometric method for the determination of lead content
GB/T 223.30-1994 Methods for chemical analysis of iron, steel and alloy The arsenazo Ⅲ spectrophotometric method for the determination of zirconium content after separation by p-bromomandelic acid
GB/T 6730.37-2017 Iron ores―Determination of cobalt content―4-[(5-chloro-2-pyridyl)azo]-1,3-diamino-benzene spectrophotometric method
GB/T 4324.15-1984 Methods for chemical analysis of tungsten--The chlorophosphonazo I photometric method for the determination of magnesium content
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 13748.4-1992 Magnesium and its alloys--Determination of cerium content--Tribromoarsenazo spectrophotometric method
GB 6260-1986 Determination of rare earth oxide content in soil--Chlorophosphonazo-p-hippuric acid photometric method
GB/T 20931.9-2007 Methods for chemical analysis of lithium—Determination of nitrogen content—Mercuric potassium iodide spectrophotometric method
GB/T 12689.11-2004 The methods for chemical analysis of zinc and zinc alloys—The determination of lanthanum and cerium contents—The tri-bromide arsenazo spectrophotometric method
GB/T 6730.44-2017e Iron ores—Determination of zinc content—1-(2-pyridylazo)-2-naphthoI spectrophotometric method
GB 223.49-1985 Methods for chemical analysis of iron,steel and alloy--The extraction separation-chlorophosphonazo mA photometric method for the determination of rare earth elements
GB/T 223.49-1994 Methods for chemical analysis of iron, steel and alloy Extraction separation-chlorophosphonazo mA spectrophotometric method for the determination of the total rare earth content
GB/T 6730.44-2017(英文版) Iron ore - Determination of zinc content - 1-(2-pyridyl azo)-2-naphthol spectrophotometric method
GB 7630-1987 The tribromoarsenazo photometric method for the determination of rare earth oxide content in rice and wheat
GB/T 7630-1987 The tribromoarsenazo photometric method for the determination of rare earth oxide content in rice and wheat
GB/T 11889-1989 Water quality--Determination of aniline compounds--Spectrophotometric method with N-(1-naphthyl) ethylenediamine
GB/T 3257.15-1999 Methods for chemical analysis of bauxite--Determination the total content of rare earth oxide--Tribromo-arsenazo photometric method
GB/T 12690.12-2003 Neodymium and samarium-Determination of oxygen content-Impulse-infrared absorption method
GB/T 6987.4-2001 Aluminium and aluminium alloys-Determination of copper content-Orthopenanthroline photometric method
GB 6730.37-1986 Methods for chemical analysis of iron ores; The 4-[(5-chloro-2-pyridyl)azo]-1,3-diaminobenzene photometric method for the determination of cobalt content

Professional Standard - Aviation

HB 5297.20-2001 Methods for Chemical Analysis of Titanium Alloys - Determination of Cerium Content by Chlorophosphonazo III Spectrophotometric Method
HB 5219.19-1998 Methods for Chemical Analysis of Magnesium Alloy - Determination of Cerium Content with Tribromo Arsenazo Spectrophotometric Method
HB 5220.38-2008 Methods for Chemical Analysis of Superalloys - Part 38: Determination of Cerium Content by Extraction Separation-Arsenazo III Photometric Method
HB 5220.43-1995 Determination of Lanthanum Content by DBC-Arsenazo Absorption Spectrophotometry Method for Chemical Analysis of Superalloys
HB 5220.39-2008 Methods for Chemical Analysis of Superalloys - Part 39: Determination of Total Rare Earth Content by Pmbp Direct Extraction-Arsenazo III Photometric Method
HB 5220.36-1995 Determination of Zirconium Content by Arsenazo Ⅲ Direct Absorption Spectrophotometry Method for Chemical Analysis of Superalloys
HB 5220.42-2008 Methods for Chemical Analysis of Superalloys - Part 42: Determination of Cerium Content by Dbc-Arsenazo Photometric Method
HB 5218.14-1995 Aluminum Alloy Chemical Analysis Method Tribromoarsine Spectrophotometric Determination of Total Rare Earth in Cerium Group
HB 5297.17-2001 Methods for Chemical Analysis of Titanium Alloys - Determination of Zirconium Content by Arsenazo iii Photometric Method
HB/Z 5218.14-2004 Methods for chemical analysis of aluminium alloys-Part 14:Determination of the cerium subgroup of rare earth elements content by tribromoarsenazo spectrophtometric method
HB 5220.38-1995 Extraction and Separation by Chemical Analysis Method of Superalloy - Determination of Cerium Content by ArsenazoⅢ Absorbance Spectrophotometry
HB 5220.36-2008 Methods for Chemical Analysis of Superalloys - Part 36: Determination of Zirconium Content by Arsenazo III Photometric Method
HB 5422.23-1989 Chemical Analysis Methods for Copper Alloy - Arsenazo III Absorption Photometry for the Determination of Zirconium Content
HB 5220.39-1995 Chemical Analysis Method of Superalloys PMBP Direct Extraction-ArsenazoⅢ Absorbance Spectrophotometry Determination of Total Rare Earth
HB 5297.21-2001 Methods for Chemical Analysis of Titanium Alloys - Determination of yttrium Content by Cupferron,Cupron Separation - Chlorophosphonazo iii Spectrophotometric Method
HB 5297.13-1984 Determination of Cerium in Titanium Alloy Chlorophosphine Azo Ⅲ Absorption Spectrophotometry
HB 5220.43-2008 Methods for Chemical Analysis of Superalloys - Part 43: Determination of Lanthanum Content by Dbc-Arsenazo Photometric Method
HB 5220.42-1995 Determination of Cerium Content by DBC-Arsenazo Absorption Spectrophotometry Method for Chemical Analysis of Superalloys
HB 5220.37-1995 Chemical analysis methods of superalloys Tantalum reagent-benzene extraction-ArsenazoⅢ Absorption photometry Determination of zirconium content
HB 5220.37-2008 Methods for Chemical Analysis of Superalloys - Part 37: Determination of Zirconium Content by N-Benzoyl-N-Phenylhydroxylamine-Benzene Extraction-Arsenazo III Photometric Method

Professional Standard - Urban Construction

CJ/T 63-1999 Municipal sewage.Determination of aniline compounds.AZO spectrophotometric method
CJ 26.13-1991 Municipal sewage water quality test method Determination of standard aniline Azo spectrophotometric method

Professional Standard - Environmental Protection

HJ/T 64.3-2001 Stationary source emission -- Determination of cadmium p-Azobenzenediazoaminazobenzene sulfonic acid spectrophotometric method
HJ/T 42-1999 Stationary source emission -- Determination of nitrogen oxide -- Ultraviolet spectrophotometric method
HJ 1191-2021 Water quality—Determination of azide—Spectrophotometry
HJ 550-2009 Water quality - Determination of cobalt - 5-CI-PADAB spectrophotometry
HJ 550-2015 Water quality - Determination of cobalt - 5-CI-PADAB Spectrophotometry
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 479-2009 Ambient air - Determination of nitrogen oxides - N-(1-naphthyl) ethylene diamine dihydrochloride spectrophotometric method

Professional Standard - Non-ferrous Metal

YS/T 575.14-2007 Methods for chemical analysis of bauxite Part 14:Determination the total content of rare earth oxide Tribromo-arsenazo photometric method
YS/T 520.2-2007 Chemical analysis of gallium Part 2 Determination of lead content The 4-(2-pyridylazo)-resorcinol spectrophotometric method
YS/T 746.16-2010 Methods for chemical analysis of lead-free tin-based solders—Part 16:Determination of total rare earth content—Arserazo Ⅲ spectrophotometry
YS/T 520.2-2006 Methods for chemical analysis of gallium. The 4-(2-pyridylazo)-resorcinol photometric method for the determination of lead content
YS/T 372.19-2006 Method for elementary analysis of precious alloy—Determination of yttrium content—Chlorophosphonazo Ⅲ spectrophotometry
YS/T 372.18-2006 Method for elementary analysis of precious alloy - Determination of gadolinium content - Chlorophosphonazo Ⅲ spectrophotometry
YS/T 575.14-2006 Methods for chemical analysis of bauxite -- Determination the total content of rare earth oxide -- Tribromo-arsenazo photometric method

Group Standards of the People's Republic of China

T/CAIA SH002-2014 Water for drinking determination of fluoride 2-(parasulfophenylazo)-1,8-dihydroxy-3,6-naphthalene disulfonic acid, zirconium salt spectrophotometric method

Professional Standard - Agriculture

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

Professional Standard - Machinery

JB/T 9552.6-1999 Methods for chemical analysis of copper-chromium-zirconium alloys The determination of zirconium by arsenazo Ⅲ photometric method after fuse with potassium phrosuifate

Professional Standard - Nuclear Industry

EJ/T 814-1994 Determination of Thorium in Uranium Ore PMBP Extraction and Separation of Arsenazo Ⅲ Spectrophotometry

Professional Standard - Ocean

HY/T 0345-2022 Determination of seawater trace nitrite—Flow analysis,diazotization and spectrophotometric detection witha long path length flow cell
HY/T 0346-2022 Determination of seawater trace nitrate—Flow analysis,cadmium reduction,diazotization and spectrophotometric detection with a long path length flow cell

Heilongjiang Provincial Standard of the People's Republic of China

DB23/T 2963-2021 Determination of Trace Calcium Content in Natural Flake Graphite by Calcium-Arsenazo Ⅲ Spectrophotometric Method

National Metrological Verification Regulations of the People's Republic of China

JJG 801-2004 Verification Regulation of Chemiluminescent NO/NOx Analyzers

GCC Standardization Organization

GSO ISO 9390:2013 Water quality - Determination of borate - Spectrometric method using azomethine-H

European Committee for Standardization (CEN)

EN 17041:2018 Fertilizers - Determination of boron in concentrations ��10 % using spectrometry with azomethine-H

German Institute for Standardization

DIN EN 17041:2018 Fertilizers - Determination of boron in concentrations 10 % using spectrometry with azomethine-H
DIN EN 17041 E:2016-09 Fertilizers - Determination of boron in concentrations 10 % using spectrometry with azomethine-H
DIN EN ISO 4945:2019-03 Steel - Determination of nitrogen - Spectrophotometric method (ISO 4945:2018); German version EN ISO 4945:2018

Ente Nazionale Italiano di Unificazione

UNI 9232:1988 Chemical analysis of non ferrous metals. Determination of zirconium in aluminium alloys. Spectrometric method using arsenazo III.

Korean Agency for Technology and Standards (KATS)

KS D ISO 1812-2002(2022) Copper alloys－Determination of iron content－1,10-Phenanthroline spectrophotometric method
KS D ISO 1812-2002(2017) Copper alloys－Determination of iron content－1,10-Phenanthroline spectrophotometric method
KS I ISO 11564:2014 Stationary source emissions — Determination of the mass concentration of nitrogen oxides(naphthylethylenediamine photometric method)
KS D ISO 4945-2022 Steel — Determination of nitrogen — Spectrophotometric method
KS I ISO 11564:2004 Stationary source emissions-Determination of the mass concentrationof nitrogen oxides(Naphthylethylenediamine photometric method)

YU-JUS

JUS H.B8.636-1981 Sulphuric acid for industrial u se. Determination of oxides of nitrogen. 2,4-xyleno/ spectrophotometric method

British Standards Institution (BSI)

BS 6068-2.40:1991 Water quality. Physical, chemical and biochemical methods. Method for the determination of borate by spectrometry using azomethine-H
BS EN ISO 4945:2018 Steel. Determination of nitrogen. Spectrophotometric method
BS EN 17041:2018 Fertilizers. Determination of boron in concentrations ≤ 10 % using spectrometry with azomethine-H

Spanish Association for Standardization (UNE)

UNE-EN ISO 4945:2019 Steel - Determination of nitrogen - Spectrophotometric method (ISO 4945:2018)
UNE-EN 17041:2019 Fertilizers - Determination of boron in concentrations = 10 % using spectrometry with azomethine-H

Association Francaise de Normalisation

NF A06-555*NF EN ISO 4945:2018 Steel - Determination of nitrogen - Spectrophotometric method
NF X43-339*NF ISO 11564:2000 Stationary source emissions - Determination of the mass concentration of nitrogen oxides - Naphthylethylenediamine photometric method.

International Organization for Standardization (ISO)

ISO 11564:1998 Stationary source emissions - Determination of the mass concentration of nitrogen oxides - Naphthylethylenediamine photometric method

Danish Standards Foundation

DANSK DS/EN 17041:2018 Fertilizers – Determination of boron in concentrations ≤ 10 % using spectrometry with azomethine-H

Standards Norway

NS-EN 17041:2018 Fertilizers — Determination of boron in concentrations ≤ 10 % using spectrometry with azomethine-H

PL-PKN

PN Z04009-03-1990 Air purity protection Tests for nitrogen compounds Determination of ammonia in work places by spectrophotometry in visible spectra] region, indopheno] method

Others: Azo compound spectrophotometry,Azo spectrophotometry,Spectrophotometric method for the determination of trace carbonyl compounds in carbon tetraolefins,Azo compound+,Azo Reagent Spectrophotometry,Azo spectrophotometry,Azo compounds