Azo Reagent Spectrophotometry

Azo Reagent Spectrophotometry, Total:138 items.

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

The Chinese standard classification for "Azo Reagent Spectrophotometry" includes: Analysis methods for exhaust emission pollutants , Analysis methods for toxic substances in water , Environmental Quality Standard for atmosphere, water and soil , Light metals and their alloys analysis method , Heavy metals and their alloys analysis method , Iron ore , Rare metals and their alloys analysis method , Cereal crop and forage crop in general , Heavy metals and their alloys , Precious metals and its alloy analysis method , Steel and iron alloy analysis method , Heavy metal ore , Electrician alloy parts , Soil and fertilizer in general .

Professional Standard - Urban Construction

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

Professional Standard - Environmental Protection

HJ 1191-2021 Water quality—Determination of azide—Spectrophotometry
HJ 550-2009 Water quality - Determination of cobalt - 5-CI-PADAB spectrophotometry
HJ 536-2009 Water quality-Determination of ammonia nitrogen-Salicylic acid spectrophotometry
HJ 550-2015 Water quality - Determination of cobalt - 5-CI-PADAB Spectrophotometry
HJ/T 346-2007 Water quality-Determination of nitrate-nitrogen-Ultraviolet spectrophotometry
HJ 535-2009 Water Quality - Determination of Ammonia Nitrogen - Nesslers Reagent Spectrophotometry
HJ/T 64.3-2001 Stationary source emission -- Determination of cadmium p-Azobenzenediazoaminazobenzene sulfonic acid spectrophotometric method

Professional Standard - Aviation

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 5220.37-1995 Chemical analysis methods of superalloys Tantalum reagent-benzene extraction-ArsenazoⅢ Absorption photometry Determination of zirconium content
HB 5220.42-2008 Methods for Chemical Analysis of Superalloys - Part 42: Determination of Cerium Content by Dbc-Arsenazo Photometric Method
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 5220.42-1995 Determination of Cerium Content by DBC-Arsenazo Absorption Spectrophotometry Method for Chemical Analysis of Superalloys
HB 5220.38-2008 Methods for Chemical Analysis of Superalloys - Part 38: Determination of Cerium Content by Extraction Separation-Arsenazo III Photometric Method
HB 5220.43-2008 Methods for Chemical Analysis of Superalloys - Part 43: Determination of Lanthanum Content by Dbc-Arsenazo Photometric Method
HB 5219.19-1998 Methods for Chemical Analysis of Magnesium Alloy - Determination of Cerium Content with Tribromo Arsenazo Spectrophotometric Method
HB 5220.43-1995 Determination of Lanthanum Content by DBC-Arsenazo Absorption Spectrophotometry Method for Chemical Analysis of Superalloys
HB 5220.39-1995 Chemical Analysis Method of Superalloys PMBP Direct Extraction-ArsenazoⅢ Absorbance Spectrophotometry Determination of Total Rare Earth
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 5220.37-2008 Methods for Chemical Analysis of Superalloys - Part 37: Determination of Zirconium Content by N-Benzoyl-N-Phenylhydroxylamine-Benzene Extraction-Arsenazo III Photometric Method
HB 5220.36-2008 Methods for Chemical Analysis of Superalloys - Part 36: Determination of Zirconium Content by Arsenazo III Photometric Method
HB 5220.38-1995 Extraction and Separation by Chemical Analysis Method of Superalloy - Determination of Cerium Content by ArsenazoⅢ Absorbance Spectrophotometry
HB 5422.23-1989 Chemical Analysis Methods for Copper Alloy - Arsenazo III Absorption Photometry for the Determination of Zirconium Content
HB 5218.14-1995 Aluminum Alloy Chemical Analysis Method Tribromoarsine Spectrophotometric Determination of Total Rare Earth in Cerium Group
HB 5297.20-2001 Methods for Chemical Analysis of Titanium Alloys - Determination of Cerium Content by Chlorophosphonazo III Spectrophotometric Method
HB 5220.36-1995 Determination of Zirconium Content by Arsenazo Ⅲ Direct Absorption Spectrophotometry Method for Chemical Analysis of Superalloys

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

GB/T 10267.5-1988 Method for analysis of calcium metal-The determination of nitrogen by distillation-Nessler reagent photometric method
GB 7630-1987 The tribromoarsenazo photometric method for the determination of rare earth oxide content in rice and wheat
GB/T 4325.26-1984 Methods for chemical analysis of molybdenum;The nessler reagent photometric method for the determination of nitrogen 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 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 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 32737-2016 Determination of nitrate nitrogen in soil—Ultraviolet spectrophotometry method
GB/T 13748.4-1992 Magnesium and its alloys--Determination of cerium content--Tribromoarsenazo spectrophotometric method
GB 11067.4-1989 Silver—Determination of antimony content—2-(5-bromo-2-pyridylazo)-5-diethylaminophenol spectrometric 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 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 11889-1989 Water quality--Determination of aniline compounds--Spectrophotometric method with N-(1-naphthyl) ethylenediamine
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 10267.5-1988 Analytical method for calcium metal Distillation-Nessler reagent photometric determination of nitrogen
GB/T 4698.7-1996 Sponge titanium, titanium and titanium alloys--Determination of nitrogen content--Distillation--Nessler reagent 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 4324.15-1984 Methods for chemical analysis of tungsten--The chlorophosphonazo I photometric method for the determination of magnesium content
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 4375.2-1984 Methods for chemical analysis of gallium;The 4-(2-pyridylazo)-resorcinol photometric method for the determination of lead content
GB/T 13747.23-1992 and zirconium alloys - Determination of nitrogen content - Distillation-Nessler reagent spectrophotometric method
GB/T 6730.89-2024 Iron ores—Determination of thorium content—Arsenazo Ⅲ spectrophotometric method
GB/T 6987.24-2001 Aluminium and aluminium alloys. Determination of copper content. Tribromoarsenazo spectrophotometric method
GB/T 7630-1987 The tribromoarsenazo photometric method for the determination of rare earth oxide content in rice and wheat
GB/T 11067.4-1989 Silver-Determination of antimony content-2-(5-bromo -2-pyridylazo)-5-diethylaminophenol spectrophotometricmethod
GB/T 7493-1987 quality - Determination of nitrogen (nitrite) - 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 4702.7-2016 Chromium metal─Determination of nitrogen content─Distillation-nessler reagent 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/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 6730.24-2006 Iron ores - Determination of total rare earth contents - Chlorophosphonazo mA spectrophotometric method
GB/T 4324.26-1984 Methods for chemical analysis of tungsten - The Nessler reagent photometric method for the determination of nitrogen 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

Professional Standard - Nuclear Industry

EJ/T 20167-2018 Determination of nitrogen content in reprocessed uranium trioxide powder by distillation-Nessler reagent spectrophotometry
EJ/T 814-1994 Determination of Thorium in Uranium Ore PMBP Extraction and Separation of Arsenazo Ⅲ Spectrophotometry

Professional Standard - Machinery

JB/T 11938-2014 Ammonia-Nitrogen Automatic Analyzers for Laboratory-Nessler's Reagent Spectrophotometry
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

Group Standards of the People's Republic of China

T/ZJATA 0024-2024 Water quality Determination of ammonia nitrogen Pre-made Nessler reagent spectrophotometry
T/CAIA SH002-2014 Water for drinking determination of fluoride 2-(parasulfophenylazo)-1,8-dihydroxy-3,6-naphthalene disulfonic acid, zirconium salt spectrophotometric method
T/CHES 27-2019 Water Quality Determination of Ammonia Nitrogen Automatic Analysis Nessler's Reagent Spectrophotometry
T/ZJATA 0025-2024 Water quality Total nitrogen determination Prefabricated chromotropic acid reagent spectrophotometry

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

GB/T 6730.44-2017 Iron ores―Determination of zinc content―1-(2-pyridylazo)-2-naphthol spectrophotometric method
GB/T 6730.37-2017 Iron ores―Determination of cobalt content―4-[(5-chloro-2-pyridyl)azo]-1,3-diamino-benzene spectrophotometric method

Professional Standard - Non-ferrous Metal

YS/T 575.14-2006 Methods for chemical analysis of bauxite -- Determination the total content of rare earth oxide -- Tribromo-arsenazo photometric method
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 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 372.18-2006 Method for elementary analysis of precious alloy - Determination of gadolinium content - Chlorophosphonazo Ⅲ spectrophotometry
YS/T 372.19-2006 Method for elementary analysis of precious alloy—Determination of yttrium content—Chlorophosphonazo Ⅲ spectrophotometry

Professional Standard - Ocean

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

中华人民共和国环境保护部

GB 7493-1987 Water quality-Determination of nitrogen (nitrite)-Spectrophotometric method
GB 11889-1989 Water quality-Determination of aniline compounds-Spectrophotometric method with N-(1-naphthyl) eth

Professional Standard - Agriculture

NY/T 30-1986 Determination of rare earth oxide content in soil - Chlorophonazo - P - Hippuric acid photometric method
GB 6260-1986 Determination of rare earth oxide content in soil--Chlorophosphonazo-p-hippuric acid photometric method

Professional Standard - Geology

DZ/T 0064.57-2021 Methods for analysis of groundwater quality- Part 57: Determination of ammonia nitrogen- Nessler's reagent spectrophotometry

未注明发布机构

DIN EN ISO 4945 E:2018-01 Determination of steel nitrogen by spectrophotometry (draft)
DIN EN 17041 E:2016-09 Fertilizers - Determination of boron in concentrations 10 % using spectrometry with azomethine-H

Professional Standard - Water Conservancy

SL 84-1994 Determination of nitrogen(nitrate) (Ultraviolet spectrophtometric method)

GSO

GSO ISO 9390:2013 Water quality - Determination of borate - Spectrometric method using azomethine-H
OS GSO ISO 4945:2015 Steel -- Determination of nitrogen content -- Spectrophotometric method

Japanese Industrial Standards Committee (JISC)

JIS K 9524:2016 Arsenazo III (Reagent)

YU-JUS

JUS H.G8.130-1984 Reagents. Ammonia solution. Determination of iron content. 1,10—Phenanthrolinespectrophotometric method
JUS H.G8.418-1991 Reagents. Sodium hvdroxide. Determination of arsenic content. Silver diethvldithiocarbamate spectrophotometric method

ES-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

British Standards Institution (BSI)

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
BS EN ISO 4945:2010 Steel. Determination of nitrogen content. Spectrophotometric method
BS EN ISO 4945:2009 Steel - Determination of nitrogen content - Spectrophotometric method

German Institute for Standardization

DIN EN ISO 4945:2019-03 Steel - Determination of nitrogen - Spectrophotometric method (ISO 4945:2018); German version EN ISO 4945:2018
DIN EN 10179:2023-07 Steels - Determination of nitrogen (trace amounts) - Spectrophotometric method; German and English version prEN 10179:2023 / Note: Date of issue 2023-05-26*Intended as replacement for DIN EN 10179 (1990-04).
DIN EN ISO 4945:2010 Steel - Determination of nitrogen content - Spectrophotometric method (ISO 4945:1977); German version EN ISO 4945:2009
DIN EN 17041:2018 Fertilizers - Determination of boron in concentrations 10 % using spectrometry with azomethine-H
DIN EN ISO 4945:2019 Steel - Determination of nitrogen - Spectrophotometric method (ISO 4945:2018)

KR-KS

KS D ISO 4945-2022 Steel — Determination of nitrogen — Spectrophotometric method
KS H ISO 5378-2008(2023) Starches and derived products－Determination of nitrogen content by the Kjeldahl method－Spectrophotometric method

Association Francaise de Normalisation

NF A06-555*NF EN ISO 4945:2018 Steel - Determination of nitrogen - Spectrophotometric method
NF EN 17041:2018 Engrais - Dosage du bore dans des concentrations inférieures ou égales à 10 % par spectrométrie avec l'azométhine H

SCC

NS-EN 17041:2018 Fertilizers — Determination of boron in concentrations ≤ 10 % using spectrometry with azomethine-H
DANSK DS/EN 17041:2018 Fertilizers – Determination of boron in concentrations ≤ 10 % using spectrometry with azomethine-H
DANSK DS/EN ISO 4945:2009 Steel – Determination of nitrogen content – Spectrophotometric method
UNE 36317-1:1985 DETERMINATION OF NITROGEN CONTENT OF STEELS. SPECTROPHOTOMETRIC METHOD
DIN EN 10179 E:2023 Draft Document - Steels - Determination of nitrogen (trace amounts) - Spectrophotometric method; German and English version prEN 10179:2023
NS-EN ISO 4945:2018 Steel - Determination of nitrogen - Spectrophotometric method (ISO 4945:2018)
NS-EN 10179:2024 Steels - Determination of nitrogen (trace amounts) - Spectrophotometric method
NS-EN ISO 4945:2009 Steel — Determination of nitrogen content — Spectrophotometric method (ISO 4945:1977)
DANSK DS/EN ISO 5378:1994 Starches and derived products - Determination of nitrogen content by the Kjeldahl method - Spectrophometric method
AENOR UNE-EN ISO 4945:2010 Steel - Determination of nitrogen content - Spectrophotometric method (ISO 4945:1977)

European Committee for Standardization (CEN)

EN 17041:2018 Fertilizers - Determination of boron in concentrations ��10 % using spectrometry with azomethine-H
EN ISO 4945:2009 Steel - Determination of nitrogen content - Spectrophotometric method (ISO 4945:1977)

International Organization for Standardization (ISO)

ISO 4945:1977 Steel; Determination of nitrogen content; Spectrophotometric method
ISO 4945:2018 Steel - Determination of nitrogen - Spectrophotometric method

CEN - European Committee for Standardization

EN ISO 4945:2018 Steel - Determination of nitrogen - Spectrophotometric method

ES-AENOR

UNE 36-317 Pt.1-1985 Determination of nitrogen in steel. Spectrophotometry

Danish Standards Foundation

DS/EN ISO 4945:2009 Steel - Determination of nitrogen content - Spectrophotometric method

Korean Agency for Technology and Standards (KATS)

KS D ISO 4945:2002 Steel－Determination of nitrogen content－Spectrophotometric method
KS D ISO 4945-2002(2017) Steel－Determination of nitrogen content－Spectrophotometric method
KS M 9106-1996 Water quality-Determination of borate(Spectrometric method using azomethine-H)
KS H ISO 5378-2023 Starches and derived products－Determination of nitrogen content by the Kjeldahl method－Spectrophotometric method
KS I ISO 9390-2021 Water quality－Determination of borate－Spectrometric method using azomethine-H
KS H ISO 5378-2008(2018) Starches and derived products－Determination of nitrogen content by the Kjeldahl method－Spectrophotometric method

BSI

BS EN 10179:2024 Steels. Determination of nitrogen (trace amounts). Spectrophotometric method

RO-ASRO

STAS SR 13257-1996 COFFEE Determination of nitrogen content by the Kjeldahi method Spectrophotometric method

BE-NBN

NBN T 91-251-1976 Water analysis methods — Determination of the ammoniacal nitrogen — Direct photometric method with Nessler reagent

American Society for Testing and Materials (ASTM)

ASTM UOP276-85 Pyrrole Nitrogen in Petroleum Distillates by Visible Spectrophotometry

AENOR

UNE-EN ISO 4945:2010 Steel - Determination of nitrogen content - Spectrophotometric method (ISO 4945:1977)

Lithuanian Standards Office

LST EN ISO 4945:2010 Steel - Determination of nitrogen content - Spectrophotometric method (ISO 4945:1977)