UV spectrophotometric test content
UV spectrophotometric test content, Total:181 items.
The international standard classification for "UV spectrophotometric test content" includes: Waxes, bituminous materials and other petroleum products , Petroleum products in general , Sugar and sugar products , Alcohols. Ethers , Natural gas , Analytical chemistry in general , Paints and varnishes , Other standards related to analytical chemistry , Workplace atmospheres , Tobacco, tobacco products and related equipment , Advanced ceramics , Biology. Botany. Zoology , Chemical reagents , Cadmium, cobalt and their alloys , Animal and vegetable fats and oils , Optics and optical measurements , Spices and condiments .
The Chinese standard classification for "UV spectrophotometric test content" includes: Fuel oil , Petroleum wax , Petroleum products in general , Basic standards and general methods on chemical fertilizers , Agriculture and forestry technology , Sugar refining , Basic organic chemicals , Natural gas , Electrochemical, thermochemistry and optical profile type analyzer , Basic standard and general method for coating , Analysis methods for toxic substances in water , Labor sanitation , Tobacco , Special ceramics , Chemical reagent in general , Heavy metals and their alloys analysis method , Grease and oil processing and products , Electron optics and other physical optics instrument , Chemical Measurement , Environmental Quality Standard for atmosphere, water and soil , Aromatics, seasoner crop and product , Cosmetics , Rare metals and their alloys analysis method .
Professional Standard - Energy
- NB/SH/T 0966-2017 Test method for total aromatics in white oil by ultraviolet spectrophotometry
Professional Standard - Petrochemical Industry
- SH/T 1498.7-1997 Nylon 66 salt - Determination of UV index - -Ultraviolet spectrophotometric method
- SH/T 0662-1998 Mineral oil - Determination of ultraviolet absorbance
- SH/T 0966-2017 Determination of aromatic hydrocarbon content in white oil by UV spectrophotometry
- SH/T 1498.5-1997 Nylon 66 salt-Determination of content of pscudo diaminocylohcloexane-Uitraviolet specterophotometric method
- SH/T 0409-1992 Determination of aromatic hydrocarbons in liquid paraffin (UV spectrophotometric method)
- SH/T 0406-1992 Determination method for vaseline ultraviolet absorbance
- SH/T 0181-2005 Standard test method for naphthalene hydrocarbons in jet fuels by ultraviolet spectrophotometry
- SH/T 0181-1992 Method for Determination of Naphthalene Hydrocarbon Content in Jet Fuel (Ultraviolet Spectrophotometry)
Group Standards of the People's Republic of China
- T/TGIC 010-2024 Textiles - Determination of gingerol content - Ultraviolet Spectrophotometry
- T/QAS 035-2021 Determination of nitrate in brine by ultraviolet spectrophotometry
- T/STIC 110086-2023 Double Beam UV-VIS Spectrophotometer
- T/GXAS 545-2023 Seawater—Rapid determination of petroleum on site—Ultraviolet spectrophotometric method
- T/CSTM 00198-2021 Graphene quantum dots—Determination of enzyme-like activities — Ultraviolet-visible spectrophotometry
- T/TGIC 009-2024 Textiles - Determination of polyphenolcontent - Ultraviolet Spectrophotometery
- T/SXCAA 036-2024 UV-Vis Spectrophotometer Period Verification Procedure
Professional Standard - Agriculture
- 2297药典 二部-2010 Appendix IV A UV-Vis Spectrophotometry
- 178药典 三部-2015 Spectrophotometry 0401 UV-Vis Spectrophotometry General Principles 19
- NY/T 1116-2006 Fertilizers - Determination of nitrate nitrogen content - Ultraviolet spectro - Photometric method
- NY/T 4306-2023 Determination of activity of papain and bromelain-Ultaraviolet spectrophotometry
- 67药典 四部-2015 0401 UV-visible spectrophotometry
- 47药典 四部-2020 0401 UV-visible spectrophotometry
- 775兽药典 一部-2015 Appendix Contents 0400 Spectroscopy 0401 UV-Vis Spectrophotometry
- 1759药典 一部-2010 Appendix VA UV-Vis Spectrophotometry
- 153药典 三部-2010 Appendix Ⅱ Spectrophotometry ⅡA UV-Vis Spectrophotometry
- NY/T 1279-2007 Determination of Nitrate in Vegetables and Fruits UV-spectrophotometer
- 772兽药典 二部-2015 Appendix Contents 0400 Spectroscopy 0401 UV-Vis Spectrophotometry
- 197药典 三部-2020 Spectrophotometry 0401 UV-Vis Spectrophotometry
Ningxia Provincial Standard of the People's Republic of China
- DB64/T 1515-2017 Determination of Total Glucosides in Sheep Placenta Capsules by Ultraviolet Spectrophotometry
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 2136-1980 Determination of thallium content in cadmium--Crystal violet photometric method
- GB/T 32737-2016 Determination of nitrate nitrogen in soil—Ultraviolet spectrophotometry method
- GB/T 14571.4-2008 glycol for industrial use - Determination of ultraviolet transmittance - Ultraviolet spectrophotometric method
- GB/T 19611-2004 Tobacco and tobacco products - Determination of maleic hydrazide residues - UV Spectrophotometer method
- GB/T 34796-2017 Quantification and purity analysis of nucleic acid concentration in solution-Ultraviolet spectrophotometry
- GB/T 34796-2017(英文版) Quantification and purity analysis of nucleic acid concentration in solution—Ultraviolet spectrophotometry
- GB/T 11081-2005 Standard test method for ultraviolet adsorption of white oils
- GB/T 11081-1989 White oils-Determination of ultraviolet absorption
- GB/T 22500-2024 Animal and vegetable fats and oils—Determination of ultraviolet absorbance expressed as specific UV extinction
- GB/T 33374-2016 Ultraviolet curable coatings--Determination of volatile content
- GB/T 36084-2018 Nanotechnology—Determination of copper, manganese and chromium ions in aqueous solution—Ultraviolet-visible spectrophotometry
- GB/T 11060.8-2012 Natural gas - Determination of sulfur compound - Part 8:Determination of total sulfur content by Ultraviolet fluorescence method
- GB 9721-1988 Molecular Absorption Spectrophotometry of Chemical Reagents General Rules (Ultraviolet and Visible Parts)
- GB/T 14571.4-2022 Test method of ethylene glycol for industrial use—Part 4:Determination of ultraviolet transmittance—Ultraviolet spectrophotometric method
- GB/T 30809-2014 UV light sources for testing properties of photocatalytic materials
- GB/T 16077-1995 Workplace air―Determination of phosgene―Ultraviolet spectrophotometric method
- GB/T 18932.6-2002 Method for the determination of glycerol contents in honey--UV spectrophotometric method
- GB/T 11060.8-2020 Natural gas—Determination of sulfur compounds—Part 8:Determination of total sulfur content by ultraviolet fluorescence method
- GB/T 26798-2011 Single beam UV/VIS spectrophotometer
- GB/T 9721-1988 Chemical reagent-General rules for the molecular absorption spectrophotometry(ultraviolet and visible)
- GB/T 9721-2006 Chemical reagent - General rules for the molecular absorption spectrophotometry (ultraviolet and visible)
- GB/T 26813-2011 Double beam UV/VIS spectrophotometer
- GB/T 36084-2018(英文版) Nanotechnology - Determination of copper, manganese and chromium ion content in aqueous solution - UV-visible spectrophotometry
Tianjin Provincial Standard of the People's Republic of China
- DB12/T 884-2019 Determination of Polysaccharide Content in Lily Bulbs by UV/Vis Spectrophotometry
Professional Standard - Water Conservancy
- SL 93.2-1994 Determination of oil and grease (Vltraviolet spectrophotometric method)
- SL 84-1994 Determination of nitrogen(nitrate) (Ultraviolet spectrophtometric method)
Hebei Provincial Standard of the People's Republic of China
- DB13/T 5028-2019 Determination of total sulfur content in alcohol-based fuels by ultraviolet fluorescence method
- DB13/T 2899-2018 Determination of iminodisuccinate content in urea by ultraviolet-visible spectrophotometry
Professional Standard - Machinery
- JB/T 6778-1993 UV/VIS Near Infrared Spectrophotometer
- JB/T 6777-1993 UV/VIS Spectrophotometer
Military Standard of the People's Republic of China-General Armament Department
- GJB 3639-1999(XG1-2015) Determination of Benzene Chloroacetophenone UV Spectrophotometry Modification Sheet 1-2015
- GJB 4781-1997*GJBz 20413.3-1997 Determination of Sies by UV spectrophotometry
- GJB 3639-1999 Determination of Benzene Chloroacetophenone UV Spectrophotometry
- GJB 4781-1997(XG1-2015) Modification sheet 1-2015 for the ultraviolet spectrophotometric method for determination of Sies
National Metrological Verification Regulations of the People's Republic of China
- JJG 178-2007 Ultraviolet,Visible,Near-Infrared Spectrophotometers
- JJG(地质) 1002-1990 Verification Regulations for UV/Visible Spectrophotometer
- JJG 689-1990 UV-VIS-NIR Spectrophotometer
- JJG 682-1990 Verification Regulation of Double Beam UV-VIS Spectrophotometers
- JJG 375-1996 UItraviolet Visible Range Spectrophotometer in Single Beam
Professional Standard - Environmental Protection
- HJ 756-2015 Water quality - Determination of butyl xanthate - UV spectrophotometric method
- HJ/T 31-1999 Stationary source emission -- Determination of phosgene -- Aniline ultraviolet spectrophotometric method
- HJ 970-2018 Water quality - Determination of petroleum - Ultraviolet spectrophotometric method
- HJ/T 346-2007 Water quality-Determination of nitrate-nitrogen-Ultraviolet spectrophotometry
Shandong Provincial Standard of the People's Republic of China
- DB37/T 4149-2020 Determination of water quality UV254 by ultraviolet spectrophotometry
Professional Standard - Supply and Marketing Cooperative
- GH/T 1290-2020 Prickly ash and its processed products―Determination of total fagaramide―Ultraviolet spetrophotometry
Professional Standard - Light Industry
- QB/T 2334-1997 Method for the Qualitative Determination of Ultraviolet Absorbents in Cosmetics - Ultraviolet Spectrophotometry
Professional Standard - Commodity Inspection
- SN/T 4383-2015 Food contact materials―Glutinous rice paper―Determination of PVA content―UV-spectrophotometry
- SN/T 0859-2016 Determination of dehydroacetic acid in condiments for export- Ultraviolet spectrophotometric method
- SN/T 5153-2019 Determination of fluorescent whitening agents in tissue paper-UV spectroscopy method
Hunan Provincial Standard of the People's Republic of China
- DB43/T 2130-2021 Ultraviolet Fluorescent Sulfur Meter Test Method
Professional Standard - Non-ferrous Metal
- YS/T 520.8-2007 Chemical analysis of gallium Part 8 Determination of indium content The ethyl violet spectrophotometric method
National Metrological Technical Specifications of the People's Republic of China
- JJF 1641-2017 Program of Pattern Evaluation of Ultraviolet—Visible Spectrophotometers
Sichuan Provincial Standard of the People's Republic of China
- DB51/T 1689-2013 Determination of total sulfur content in liquefied natural gas (LNG) by ultraviolet fluorescence method
- DB51/T 1699-2013 Determination of total sulfur content in liquefied petroleum gas (LPG) by ultraviolet fluorescence method
Professional Standard - Nuclear Industry
- EJ/T 296.2-2014 Determination of trace uranium in urine liquid fluorometry by ultraviolet
German Institute for Standardization
- DIN ISO 13964:1999 Air quality - Determination of ozone in ambient air - Ultraviolet photometric method (ISO 13964:1998)
- DIN EN ISO 3656:2017-08 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction (ISO 3656:2011 + Amd 1:2017); German version EN ISO 3656:2011 + A1:2017
- DIN EN ISO 20846:2019-12 Petroleum products - Determination of sulfur content of automotive fuels - Ultraviolet fluorescence method (ISO 20846:2019); German version EN ISO 20846:2019
- DIN EN ISO 24443 E:2010-09 In vitro ultraviolet A radiation (UVA) photodamage protection sunscreen content determination (draft)
Korean Agency for Technology and Standards (KATS)
- KS B 5570-2017 Performance test for UV/Vis spectrophotometer
- KS B 5570-2022 Performance test for UV/Vis spectrophotometer
- KS M 2231-2014 Testing method for naphthalene type hydrocarbon contents in aviation turbine fuels by ultraviolet spectrophotometry
- KS H ISO 4735-2019 Oils of Citrus-Determination of CD value by ultraviolet spectrometric analysis
- KS I ISO 13964:2004 Air quality-Determination of ozone in ambient air-Ultraviolet photometric method
- KS I ISO 13964:2014 Air quality — Determination of ozone in ambient air — Ultraviolet photometric method
- KS H ISO 4735:2014 Oils of Citrus-Determination of CD value by ultraviolet spectrometric analysis
- KS H ISO 4735:2011 Oils of Citrus-Determination of CD value by ultraviolet spectrometric analysis
- KS M 2231-1980 Testing method for naphthalene type hydrocarbon contents in aviation turbine fuels by ultraviolet spectrophotometry
- KS M ISO 20846-2021 Petroleum products — Determination of sulfur content of automotive fuels — Ultraviolet fluorescence method
- KS M 2231-2010 Testing method for naphthalene type hydrocarbon contents in aviation turbine fuels by ultraviolet spectrophotometry
- KS M ISO 20846:2021 Petroleum products — Determination of sulfur content of automotive fuels — Ultraviolet fluorescence method
Netherlands Institute for Standardization
- NEN 6581-1985 Rain water - UV-photometric determination of nitrate content
Spanish Association for Standardization (UNE)
- UNE 55047:1973 FATS. SPECTROPHOTOMETRIC MEASURE OF ABSORPTION IN THE ULTRAVIOLET AREA.
- UNE 84170:1983 OIL OF LEMON. ULTRA-VIOLET SPECTROPHOTO METRIC ANALYSIS
- UNE-EN 15486:2008 Ethanol as a blending component for petrol - Determination of sulfur content - Ultraviolet fluorescence method
- UNE 84124:2000 Cosmetic raw materials. Determination of UV-filters by spectrophotometric absorbance.
- UNE 84124:2014 Cosmetic raw materials. Determination of UV-filters by spectrophotometric absorbance.
- UNE-EN ISO 20846:2020 Petroleum products - Determination of sulfur content of automotive fuels - Ultraviolet fluorescence method (ISO 20846:2019)
American Society for Testing and Materials (ASTM)
- ASTM E958-93(2005) Standard Practice for Measuring Practical Spectral Bandwidth of Ultraviolet-Visible Spectrophotometers
- ASTM E878-12 Standard Test Method for Determination of Titanium in Iron Ores and Related Materials by Diantipyrylmethane Ultraviolet Spectrophotometry
- ASTM E958-93(1999) Standard Practice for Measuring Practical Spectral Bandwidth of Ultraviolet-Visible Spectrophotometers
- ASTM E2193-23 Standard Test Method for Ultraviolet Transmittance of Monoethylene Glycol (using Ultraviolet Spectrophotometry)
- ASTM RR-D02-1525 2002 D1840- Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry
- ASTM D8496-23 Standard Test Method for Determination of Hydroquinone (HQ) Content in Vinyl Acetate Monomer (VAM) Using Ultraviolet-Visible (UV-Vis) Spectrophotometer
- ASTM RR-D02-1375 1995 D1840-Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry
- ASTM E275-08(2022) Standard Practice for Describing and Measuring Performance of Ultraviolet and Visible Spectrophotometers
- ASTM E275-08 Describing and Measuring Performance of Ultraviolet and Visible Spectrophotometers
- ASTM E958-13(2021) Standard Practice for Estimation of the Spectral Bandwidth of Ultraviolet-Visible Spectrophotometers
- ASTM E1754-17a Standard Test Method for Determination of Low Levels of Water in Liquid Chlorine By Infrared Spectrophotometry
Polski Komitet Normalizacyjny (PKN)
- PN C97088-1987 Coal derivative products UV spectrophotometric determination of tar acids content in coal tar and oils
- PN Z04200-02-1988 Air purity protection ests for oxalic acid etermination of oxalic acid by ltraviolet absorption spectrophotometry
- PN Z04171-02-1986 Air purity protection ests for picric acid etermination of picric acid n work places by UV pectrophotometry absorption
- PN C97089-1989 Carbochemical products UV spectrophotometric determination of anthracene in coal tar and coal tar oils
- PN C97085-1986 Carbochemical products UV Spectrophotometric determination of naphihalene in coal tar and coal tar oils
Yugoslav Association for Standardization
- JUS H.F8.232-1986 Gases. Determination of hydrocarbons content. Infrared spectrophotometric method
- JUS H.F8.153-1986 Gases. Determination of carbon dioxid content. Infrared spectrophotometric method
Bureau of Indian Standards
- IS 1448 Pt.63-1967 Determination of benzene and toluene by UV spectrophotometry
- IS 16200-2015 Animal and Vegetable Fats and Oils - Determination of Ultraviolet Absorbance Expressed as Specific UV Extinction
GCC Standardization Organization
- GSO ISO 4735:2015 Oils of Citrus -- Determination of CD value by ultraviolet spectrometric analysis
- GSO ISO 3656:2015 Animal and vegetable fats and oils -- Determination of ultraviolet absorbance expressed as specific UV extinction
- GSO ISO 20729:2022 Natural gas — Determination of sulfur compounds — Determination of total sulfur content by ultraviolet fluorescence method
- GSO ASTM E275:2021 Standard Practice for Describing and Measuring Performance of Ultraviolet and Visible Spectrophotometers
- GSO ISO 20846:2022 Petroleum products — Determination of sulfur content of automotive fuels — Ultraviolet fluorescence method
- BH GSO ASTM D1840:2024 Standard Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry
Association Francaise de Normalisation
- NF X43-024*NF ISO 13964:1999 Air quality. Determination of ozone in ambient air. Ultraviolet photometric method.
- NF T75-122*NF ISO 4735:2002 Oils of Citrus - Determination of CD value by ultraviolet spectrometric analysis.
- XP M07-115:2003 Petroleum products - Determination of Solvent Yellow 124 content in middle distillates - Method by extraction with hydrochloric acid and determination by UV-Visible spectrophotometry
- NF X20-518*NF ISO 20729:2018 Natural gas - Determination of sulfur compounds - Determination of total sulfur content by ultraviolet fluorescence method
- NF ISO 20729:2018 Natural gas - Determination of sulfur compounds - Determination of total sulfur content by the UV fluorescence method
- NF EN ISO 20846:2019 Petroleum products - Determination of sulfur content of automobile fuels - Ultraviolet fluorescence method
Kingdom of Bahrain Testing and Metrology Directorate
- BH GSO ISO 3656:2016 Animal and vegetable fats and oils -- Determination of ultraviolet absorbance expressed as specific UV extinction
- BH GSO ASTM E275:2022 Standard Practice for Describing and Measuring Performance of Ultraviolet and Visible Spectrophotometers
- BH GSO ISO 20729:2023 Natural gas — Determination of sulfur compounds — Determination of total sulfur content by ultraviolet fluorescence method
- BH GSO ISO 20846:2023 Petroleum products — Determination of sulfur content of automotive fuels — Ultraviolet fluorescence method
International Organization for Standardization (ISO)
- ISO 13964:1998 Air quality - Determination of ozone in ambient air - Ultraviolet photometric method
- ISO 4735:2002 Oils of citrus - Determination of CD value by ultraviolet spectrometric analysis
- ISO/CD 20846:2023 Petroleum products — Determination of sulfur content of automotive fuels — Ultraviolet fluorescence method
Standards Norway
- NS-EN 15486:2007 Ethanol as a blending component for petrol — Determination of sulfur content — Ultraviolet fluorescence method
- NS 9462-2006 Water quality Determination of UV-absorbance
- NS 9462:2006 Water quality — Determination of UV-absorbance
Swedish Institute for Standards
- SIS SS 02 81 45-1991 Determination ofoilin water — Infrared spectrophotometric method
- SS-EN 61345:2002 UV test for photovoltaic (PV) modules
- SS-EN 15486:2007 Ethanol as a blending component for petrol - Determination of sulfur content - Ultraviolet fluorescence method
- SS-EN 17178:2019 Liquid petroleum products - Determination of the total volatile sulfur content in liquefied petroleum gases by ultraviolet fluorescence spectroscopy
Danish Standards Foundation
- DANSK DS/EN 15486:2007 Ethanol as a blending component for petrol - Determination of sulfur content - Ultraviolet fluorescence method
- DS/EN 15486:2007 Ethanol as a blending component for petrol - Determination of sulfur content - Ultraviolet fluorescence method
- DANSK DS/EN ISO 3656:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction
- DANSK DS/EN ISO 3656/A1:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction
- DS/EN ISO 3656:2011 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction
- DANSK DS/ISO 20846:2019 Petroleum products – Determination of sulfur content of automotive fuels – Ultraviolet fluorescence method
Lithuanian Standards Office
- LST EN 15486-2007 Ethanol as a blending component for petrol - Determination of sulfur content - Ultraviolet fluorescence method
American Association of Textile Chemists and Colorists
- AATCC EP11-2016 Spectrophotometer UV Energy Calibration Procedure for Optically Brightened Textiles
Gosstandart of Russia
- GOST ISO 4735-2015 Essential oils of citrus. Determination of CD value by ultraviolet spectrometric analysis
- GOST R EN ISO 20846-2006 Petroleum products. Determination of sulfur content by ultraviolet fluorescence method
Ente Nazionale Italiano di Unificazione
- UNI 7691:1977 Elastomers. Tests on vulcanized rubber. Determination of styrene by ultraviolet spectrophotometry.
- UNI EN 15486:2008 Ethanol as a blending component for petrol - Determination of sulfur content - Ultraviolet fluorescence method
- UNI EN ISO 20846:2005 Petroleum products - Determination of sulfur content of automotive fuels - Ultraviolet fluorescence method
- UNI 11606:2015 Petroleum products - Determination of green dye content in diesel fuel and in denaturants packages by (UV-ultraviolet) visible spectroscopy
- UNI EN ISO 3656:2002 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction
Indonesia Standards
- SNI 06-2481-1991 Water, Test method for boron content by spectrophotometer in a curcumium manuver
COMMISSION FOR THE STANDARDS, METROLOGY AND QUALITY OF VIETNAM (STAMEQ)
- TCVN 7726-2007 Ambient air.Determination of sulfur dioxide.Ultraviolet fluorescence method
European Committee for Standardization (CEN)
- EN ISO 24443:2021 Cosmetics - Determination of sunscreen UVA photoprotection in vitro (ISO 24443:2021, Corrected version 2022-02)
- EN ISO 24443:2012 Determination of sunscreen UVA photoprotection in vitro
- EN ISO 3656:2011/A1:2017 Animal and vegetable fats and oils - Determination of ultraviolet absorbance expressed as specific UV extinction - Amendment 1 (ISO 3656:2011/Amd 1:2017)
American Water Works Association (AWWA)
- AWWA JAW30356 Journal AWWA — Using Cobalt-Ultraviolet Spectrophotometry to Measure Hydrogen Peroxide Concentration in Organically Laden Groundwaters
British Standards Institution (BSI)
- BS EN ISO 20846:2019 Petroleum products. Determination of sulfur content of automotive fuels. Ultraviolet fluorescence method
- BS EN ISO 20846:2011 Petroleum products. Determination of sulfur content of automotive fuels. Ultraviolet fluorescence method
- BS EN 15486:2007 Ethanol as a blending component for petrol. Determination of sulfur content. Ultraviolet fluorescence method
Portuguese Institute of Quality
- NP 3362-1986 Citrus fruit refined oil. Measurement of CD value by UV spectrophotometry
Comitato Elettrotecnico Italiano
- CEI EN 61345:1999 UV test for photovoltaic (PV) modules
Japanese Industrial Standards Committee (JISC)
- JIS K 2541-6:2003 Crude oil and petroleum products -- Determination of sulfur content Part 6: Ultraviolet fluorescence method
Austrian Standards
- ONORM C 1157-1995 Testing of petroleum products - Determination of chinizarene content -Spectrophotometric method
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