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Hydrogen peroxide for digestion

Hydrogen peroxide for digestion, Total:147 items.

In the international standard classification, Hydrogen peroxide for digestion involves: Animal feeding stuffs, Inorganic chemicals, Products of the chemical industry, Sterilization and disinfection, Air quality, Occupational safety. Industrial hygiene, Protection against fire, Protection against electric shock, Protection against dangerous goods, Metrology and measurement in general, CHEMICAL TECHNOLOGY, Water quality, Analytical chemistry, Organic chemicals, Plastics, Non-ferrous metals, Burners. Boilers, Ceramics, Natural gas.


Lithuanian Standards Office , Hydrogen peroxide for digestion

  • LST EN 16159-2012 Animal feeding stuffs - Determination of selenium by hydride generation atomic absorption spectrometry (HGAAS) after microwave digestion (digestion with 65 % nitric acid and 30 % hydrogen peroxide)
  • LST EN 16206-2012 Animal feeding stuffs - Determination of arsenic by hydride generation atomic absorption spectrometry (HGAAS) after microwave pressure digestion (digestion with 65 % nitric acid and 30 % hydrogen peroxide)
  • LST EN 902-2009 Chemicals used for treatment of water intended for human consumption - Hydrogen peroxide
  • LST EN 15029-2013 Products used for treatment of water intended for human consumption - Iron (III) hydroxide oxide
  • LST EN 883-2004 Chemicals used for treatment of water intended for human consumption - Polyaluminium chloride hydroxyde and polyaluminium chloride hydroxyde sulfate
  • LST EN 896-2013 Chemicals used for treatment of water intended for human consumption - Sodium hydroxide
  • LST EN 881-2004 Chemicals used for treatment of water intended for human consumption - Aluminium chloride (monomeric), aluminium chloride hydroxide (monomeric) and aluminium chloride hydroxide sulfate (monomeric)
  • LST EN 16277-2012 Animal feeding stuffs - Determination of mercury by cold-vapour atomic absorption spectrometry (CVAAS) after microwave pressure digestion (extraction with 65 % nitric acid and 30 % hydrogen peroxide)
  • LST EN 885-2004 Chemicals used for treatment of water intended for human consumption - Polyaluminium chloride hydroxide silicate
  • LST EN 886-2004 Chemicals used for treatment of water intended for human consumption - Polyaluminium hydroxide silicate sulfate
  • LST EN 935-2004 Chemicals used for treatment of water intended for human consumption - Aluminium iron(III) chloride (monomeric) and aluminium iron(III) chloride hydroxide (monomeric)
  • LST EN ISO 11905-1:2000 Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate (ISO 11905-1:1997)
  • LST EN ISO 11734:2000 Water quality - Evaluation of the "ultimate" anaerobic biodegradability of organic compounds in digested sludge - Method by measurement of the biogas production (ISO 11734:1995)
  • LST EN ISO 6974-3:2003 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 3: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columns (ISO 6974-3:2000)

Danish Standards Foundation, Hydrogen peroxide for digestion

  • DS/EN 16159:2012 Animal feeding stuffs - Determination of selenium by hydride generation atomic absorption spectrometry (HGAAS) after microwave digestion (digestion with 65 % nitric acid and 30 % hydrogen peroxide)
  • DS/EN 16206:2012 Animal feeding stuffs - Determination of arsenic by hydride generation atomic absorption spectrometry (HGAAS) after microwave pressure digestion (digestion with 65 % nitric acid and 30 % hydrogen peroxide)
  • DS/EN 902+NA:2009 Chemicals used for treatment of water intended for human consumption - Hydrogen peroxide
  • DS/EN 15029:2013 Products used for treatment of water intended for human consumption - Iron (III) hydroxide oxide
  • DS/EN 883:2005 Chemicals used for treatment of water intended for human consumption - Polyaluminium chloride hydroxyde and polyaluminium chloride hydroxyde sulfate
  • DS/EN 896:2013 Chemicals used for treatment of water intended for human consumption - Sodium hydroxide
  • DS/EN 881:2005 Chemicals used for treatment of water intended for human consumption - Aluminium chloride (monomeric), aluminium chloride hydroxide (monomeric) and aluminium chloride hydroxide sulfate (monomeric)
  • DS/EN 16277:2012 Animal feeding stuffs - Determination of mercury by cold-vapour atomic absorption spectrometry (CVAAS) after microwave pressure digestion (extraction with 65 % nitric acid and 30 % hydrogen peroxide)
  • DS/EN 885:2005 Chemicals used for treatment of water intended for human consumption - Polyaluminium chloride hydroxide silicate
  • DS/EN 886:2005 Chemicals used for treatment of water intended for human consumption - Polyaluminium hydroxide silicate sulfate
  • DS/EN ISO 11905-1:2001 Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate
  • DS/EN 935:2005 Chemicals used for treatment of water intended for human consumption - Aluminium iron(III) chloride (monomeric) and aluminium iron(III) chloride hydroxide (monomeric)

AENOR, Hydrogen peroxide for digestion

  • UNE-EN 16159:2012 Animal feeding stuffs - Determination of selenium by hydride generation atomic absorption spectrometry (HGAAS) after microwave digestion (digestion with 65 % nitric acid and 30 % hydrogen peroxide)
  • UNE-EN 16206:2012 Animal feeding stuffs - Determination of arsenic by hydride generation atomic absorption spectrometry (HGAAS) after microwave pressure digestion (digestion with 65 % nitric acid and 30 % hydrogen peroxide)
  • UNE-EN 15029:2013 Products used for treatment of water intended for human consumption - Iron (III) hydroxide oxide
  • UNE-EN 883:2005 Chemicals used for treatment of water intended for human consumption - Polyaluminium chloride hydroxyde and polyaluminium chloride hydroxyde sulfate
  • UNE-EN 896:2013 Chemicals used for treatment of water intended for human consumption - Sodium hydroxide
  • UNE-EN 881:2005 Chemicals used for treatment of water intended for human consumption - Aluminium chloride (monomeric), aluminium chloride hydroxide (monomeric) and aluminium chloride hydroxide sulfate (monomeric)
  • UNE-EN 16277:2012 Animal feeding stuffs - Determination of mercury by cold-vapour atomic absorption spectrometry (CVAAS) after microwave pressure digestion (extraction with 65 % nitric acid and 30 % hydrogen peroxide)
  • UNE-EN 885:2005 Chemicals used for treatment of water intended for human consumption - Polyaluminium chloride hydroxide silicate
  • UNE-EN 886:2006 Chemicals used for treatment of water intended for human consumption - Polyaluminium hydroxide silicate sulfate
  • UNE-EN ISO 11905-1:1998 WATER QUALITY. DETERMINATION OF NITROGEN. PART 1: METHOD USING OXIDATIVE DIGESTION WITH PEROXODISULFATE. (ISO 11905-1:1997).

German Institute for Standardization, Hydrogen peroxide for digestion

  • DIN EN 16159:2012-04 Animal feeding stuffs - Determination of selenium by hydride generation atomic absorption spectrometry (HGAAS) after microwave digestion (digestion with 65 % nitric acid and 30 % hydrogen peroxide); German version EN 16159:2012
  • DIN EN 16206:2012-05 Animal feeding stuffs - Determination of arsenic by hydride generation atomic absorption spectrometry (HGAAS) after microwave pressure digestion (digestion with 65 % nitric acid and 30 % hydrogen peroxide); German version EN 16206:2012
  • DIN EN 902:2016-09 Chemicals used for treatment of water intended for human consumption - Hydrogen peroxide; German version EN 902:2016 / Note: This standard is part of the DVGW body of rules.
  • DIN EN 16400:2014-03 Chemicals used for treatment of swimming pool water - Hydrogen peroxide; German version EN 16400:2013
  • DIN EN 896:2013-02 Chemicals used for treatment of water intended for human consumption - Sodium hydroxide; German version EN 896:2012 / Note: To be replaced by DIN EN 896 (2020-07).
  • DIN EN 16159:2012 Animal feeding stuffs - Determination of selenium by hydride generation atomic absorption spectrometry (HGAAS) after microwave digestion (digestion with 65 % nitric acid and 30 % hydrogen peroxide); German version EN 16159:2012
  • DIN EN 16277:2012-09 Animal feeding stuffs - Determination of mercury by cold-vapour atomic absorption spectrometry (CVAAS) after microwave pressure digestion (extraction with 65 % nitric acid and 30 % hydrogen peroxide); German version EN 16277:2012
  • DIN EN 17034:2018 Chemicals used for treatment of water intended for human consumption - Aluminium chloride anhydrous, aluminium chloride basic, dialuminium chloride pentahydroxide and aluminium chloride hydroxide sulfate
  • DIN EN 886:2005-02 Chemicals used for treatment of water intended for human consumption - Polyaluminium hydroxide silicate sulfate; German version EN 886:2004
  • DIN EN ISO 8192:2007 Water quality - Test for inhibition of oxygen consumption by activated sludge for carbonaceous and ammonium oxidation (ISO 8192:2007)English version of DIN EN ISO 8192:2007-05
  • DIN EN 15029:2013 Products used for treatment of water intended for human consumption.Iron (III) hydroxide oxide; German version EN 15029:2012
  • DIN EN 12678:2016-12 Chemical used for treatment of water intended for human consumption - Potassium peroxomonosulfate; German version EN 12678:2016 / Note: This standard is part of the DVGW body of rules.
  • DIN EN 935:2005-02 Chemicals used for treatment of water intended for human consumption - Aluminium iron(III) chloride (monomeric) and aluminium iron(III) chloride hydroxide (monomeric); German version EN 935:2004
  • DIN EN ISO 11905-1:1998-08 Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate (ISO 11905-1:1997); German version EN ISO 11905-1:1998
  • DIN EN 14627:2005-07 Foodstuffs - Determination of trace elements - Determination of total arsenic and selenium by hydride generation atomic absorption spectrometry (HGAAS) after pressure digestion; German version EN 14627:2005

Association Francaise de Normalisation, Hydrogen peroxide for digestion

  • NF EN 16206:2012 Aliments des animaux - Dosage de l'arsenic par spectrométrie d'absorption atomique par génération d'hydrures (SAAGH) après digestion sous pression par micro-ondes (digestion à l'acide nitrique à 65 % et au peroxyde d'hydrogène à 30 %)
  • NF T20-551:1989 Hydrogen peroxide for industrial use. Determination of hydrogen peroxide content. Titrimetric method.
  • NF T94-305*NF EN 902:2016 Chemicals used for treatment of water intended for human consumption - Hydrogen peroxide
  • NF V18-242*NF EN 16159:2012 Animal feeding stuffs - Determination of selenium by hydride generation atomic absorption spectrometry (HGAAS) after microwave digestion (extraction with 65% nitric acid and 30% hydrogen peroxide).
  • NF EN 16159:2012 Aliments pour animaux - Dosage du sélénium par spectrométrie d'absorption atomique par génération d'hydrures (SAAGH) après digestion par micro-ondes (extraction avec de l'acide nitrique à 65% et du peroxyde d'hydrogène à 30%)
  • NF T20-555:1989 Hydrogen peroxide for industrial use. Determination of amount of decomposition rate after 16 H at 96 degrees C.
  • NF T94-450*NF EN 16400:2014 Chemicals used for treatment of swimming pool water - Hydrogen peroxide
  • NF EN 16400:2014 Produits chimiques utilisés pour le traitement de l'eau des piscines - Peroxyde d'hydrogène
  • NF EN 902:2016 Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Peroxyde d'hydrogène
  • NF T20-553:1989 Hydrogen peroxide for industrial use. Determination of apparent acidity. Titrimetric method.
  • NF T94-101*NF EN 17034:2018 Chemicals used for treatment of water intended for human consumption - Aluminium chloride anhydrous, aluminium chloride basic, dialuminium chloride pentahydroxide and aluminium chloride hydroxide sulfate
  • NF EN 16277:2012 Aliments des animaux - Dosage du mercure par spectrométrie d'absorption atomique à vapeur froide (SAAVF) après digestion sous pression par micro-ondes (extraction avec de l'acide nitrique à 65 % et du peroxyde d'hydrogène à 30 %)
  • NF T20-552:1989 Hydrogen peroxide for industrial use. Determination of chlorides and sulfates. Turbidimetric method.
  • NF EN 12678:2016 Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Peroxomonosulfate de potassium
  • NF T51-812*NF EN ISO 15985:2017 Plastics - Determination of the ultimate anaerobic biodegradation under high-solids anaerobic-digestion conditions - Method by analysis of released biogas
  • NF EN 16370:2022 Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Chlorure de sodium pour la génération électrochimique de chlore au moyen d'électrolyseurs à membrane
  • NF EN ISO 11734:1998 Qualité de l'eau - "Évaluation de la biodégradabilité anaérobie ""ultime"" des composés organiques dans les boues de digesteurs" - Méthode par mesurage de la production de biogaz.

API - American Petroleum Institute, Hydrogen peroxide for digestion

  • API PUBL 4448-1987 Field Study of Enhanced Subsurface Biodegradation of Hydrocarbons Using Hydrogen Peroxide as an Oxygen Source
  • API PUBL 4389-1985 Feasibility Studies on the Use of Hydrogen Peroxide to Enhance Microbial Degradation of Gasoline

British Standards Institution (BSI), Hydrogen peroxide for digestion

  • BS 7546-1:1992 Hydrogen peroxide for industrial use - Method for determination of hydrogen peroxide content
  • BS EN ISO 11905-1:1998 Water quality. Determination of nitrogen.. Method using oxidative digestion with peroxodisulfate
  • BS EN 16206:2012 Animal feeding stuffs. Determination of arsenic by hydride generation atomic absorption spectrometry (HGAAS) after microwave pressure digestion (digestion with 65 % nitric acid and 30 % hydrogen peroxide)
  • BS EN 16159:2012 Animal feeding stuffs. Determination of selenium by hydride generation atomic absorption spectrometry (HGAAS) after microwave digestion (digestion with 65 % nitric acid and 30 % hydrogen peroxide)
  • BS 7546-2:1992 Hydrogen peroxide for industrial use - Method for determination of stability at 100 °C
  • BS EN 902:2016 Tracked Changes. Chemicals used for treatment of water intended for human consumption. Hydrogen peroxide
  • BS 7546-3:1992 Hydrogen peroxide for industrial use - Method for determination of apparent acidity
  • BS PAS 110:2010 Specification for whole digestate, separated liquor and separated fibre derived from the anaerobic digestion of source-segregated biodegradable materials
  • BS ISO 15985:2004 Plastics - Determination of the ultimate anaerobic biodegradation and disintegration under high-solids anaerobic-digestion conditions - Method by analysis of released biogas
  • BS ISO 15985:2014 Plastics. Determination of the ultimate anaerobic biodegradation under high-solids anaerobic-digestion conditions. Method by analysis of released biogas

European Committee for Standardization (CEN), Hydrogen peroxide for digestion

  • prEN 902-1992 Hydrogen peroxide used for water intended for human consumption
  • EN 16206:2012 Animal feeding stuffs - Determination of arsenic by hydride generation atomic absorption spectrometry (HGAAS) after microwave pressure digestion (digestion with 65 % nitric acid and 30 % hydrogen peroxide)
  • EN 896:2012 Chemicals used for treatment of water intended for human consumption - Sodium hydroxide
  • EN 896:1998 Chemicals Used for Treatment of Water Intended for Human Consumption - Sodium Hydroxide
  • EN 15029:2012 Products used for treatment of water intended for human consumption - Iron (III) hydroxide oxide
  • EN 17034:2018 Chemicals used for treatment of water intended for human consumption - Aluminium chloride anhydrous@ aluminium chloride basic@ dialuminium chloride pentahydroxide and aluminium chloride hydroxide sulfate
  • EN ISO 11905-1:1998 Water Quality - Determination of Nitrogen - Part 1: Method Using Oxidative Digestion with Peroxodisulfate ISO 11905-1:1997
  • EN ISO 8192:1992 Water Quality - Test for the Inhibition of Oxygen Consumption by Activated Sludge (ISO 8192 : 1986)
  • EN ISO 8192:2007 Water quality - Test for inhibition of oxygen consumption by activated sludge for carbonaceous and ammonium oxidation (ISO 8192:2007)
  • EN ISO 15985:2017 Plastics - Determination of the ultimate anaerobic biodegradation under high-solids anaerobic-digestion conditions - Method by analysis of released biogas

HU-MSZT, Hydrogen peroxide for digestion

RU-GOST R, Hydrogen peroxide for digestion

  • GOST R 56995-2016 Disinfectology and disinfection activities. Chemical disinfectants and antiseptics. Method for the determination of peracetic acid in the presence of hydrogen peroxide
  • GOST R 56991-2016 Disinfectology and disinfection activities. Chemical disinfectants and antiseptics. Method for the determination of hydrogen peroxide
  • GOST 8595-1983 Lithium hydroxide technical. Specifications

Manufacturers Standardization Society of the Valve and Fitting Industry (MSS), Hydrogen peroxide for digestion

MSS - Manufacturers Standardization Society of the Valve and Fittings Industry., Hydrogen peroxide for digestion

  • SP-150-2015 Valves for Use in Hydrogen Peroxide Service

Professional Standard - Agriculture, Hydrogen peroxide for digestion

Defense Logistics Agency, Hydrogen peroxide for digestion

ES-UNE, Hydrogen peroxide for digestion

  • UNE-EN 902:2016 Chemicals used for treatment of water intended for human consumption. Hydrogen peroxide
  • UNE-EN 12678:2016 Chemical used for treatment of water intended for human consumption - Potassium peroxomonosulfate
  • UNE-EN 935:2006 Chemicals used for treatment of water intended for human consumption - Aluminium iron(III) chloride (monomeric) and aluminium iron(III) chloride hydroxide (monomeric)
  • UNE-EN 17034:2018 Chemicals used for treatment of water intended for human consumption - Aluminium chloride anhydrous, aluminium chloride basic, dialuminium chloride pentahydroxide and aluminium chloride hydroxide sulfate

未注明发布机构, Hydrogen peroxide for digestion

CEN - European Committee for Standardization, Hydrogen peroxide for digestion

  • EN 896:2005 Chemicals used for treatment of water intended for human consumption - Sodium hydroxide

American Society for Testing and Materials (ASTM), Hydrogen peroxide for digestion

  • ASTM D6363-98(2009)e1 Standard Test Method for Determination of Hydrogen Peroxide and Combined Organic Peroxides in Atmospheric Water Samples by Peroxidase Enzyme Fluorescence Method
  • ASTM D6363-98(2013) Standard Test Method for Determination of Hydrogen Peroxide and Combined Organic Peroxides in Atmospheric Water Samples by Peroxidase Enzyme Fluorescence Method
  • ASTM UOP291-13 Total Chloride in Alumina and Silica-Alumina Catalysts by Microwave Digestion and Potentiometric Titration
  • ASTM UOP291-15 Total Chloride in Alumina and Silica-Alumina Catalysts by Microwave Digestion and Potentiometric Titration
  • ASTM E475-16 Standard Test Method for Assay of Di-tert-Butyl Peroxide Using Gas Chromatography
  • ASTM G110-92(1997) Standard Practice for Evaluating Intergranular Corrosion Resistance of Heat Treatable Aluminum Alloys by Immersion in Sodium Chloride + Hydrogen Peroxide Solution
  • ASTM G110-92(2022)e1 Standard Practice for Evaluating Intergranular Corrosion Resistance of Heat Treatable Aluminum Alloys by Immersion in Sodium Chloride + Hydrogen Peroxide Solution
  • ASTM G110-92(2022)e2 Standard Practice for Evaluating Intergranular Corrosion Resistance of Heat Treatable Aluminum Alloys by Immersion in Sodium Chloride + Hydrogen Peroxide Solution
  • ASTM D6447-03 Standard Test Method for Hydroperoxide Number of Aviation Turbine Fuels by Voltammetric Analysis
  • ASTM D6447-09(2014) Standard Test Method for Hydroperoxide Number of Aviation Turbine Fuels by Voltammetric Analysis
  • ASTM D6069-01(2006) Standard Test Method for Trace Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
  • ASTM D6069-96 Standard Test Method for Trace Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
  • ASTM D6069-01 Standard Test Method for Trace Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
  • ASTM D8344-20 Standard Practice for Ammonium Bifluoride and Nitric Acid Digestion of Airborne Dust and Dust-Wipe Samples for the Determination of Metals and Metalloids

TR-TSE, Hydrogen peroxide for digestion

  • TS 1145-1973 SOMUM HYDROXIDE AND POTASSTUM HYDROXIDE FOR INDUSTRIAL USE DETERMINATION OF SILICA CX)NTENT GRAVIMETRIC METHOD BY PRECEPITATION OF THE QUINOLINE - SILICOMOLYBDIC COMPLEX

Professional Standard - Medicine, Hydrogen peroxide for digestion

  • YY/T 1266-2015 Evaluation of materials of medical device subject to hydrogen peroxide sterilization

Universal Oil Products Company (UOP), Hydrogen peroxide for digestion

  • UOP 291-2013 Total Chloride in Alumina and Silica-Alumina Catalysts by Microwave Digestion and Potentiometric Titration
  • UOP 291-2015 Total Chloride in Alumina and Silica-Alumina Catalysts by Microwave Digestion and Potentiometric Titration

YU-JUS, Hydrogen peroxide for digestion

  • JUS H.B8.656-1983 Hydrogen peroxide for industrial use. Determination of free acid content (as H2S04J. Volumetric method

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Hydrogen peroxide for digestion

  • GB 27955-2011 General requirements for low-temperature hydrogen peroxide gas plasma sterilizer

VN-TCVN, Hydrogen peroxide for digestion

  • TCVN 6226-2012 Water quality.Test for inhibition of oxygen consumption by activated sludge for carbonaceous and ammonium oxidation

PT-IPQ, Hydrogen peroxide for digestion

International Organization for Standardization (ISO), Hydrogen peroxide for digestion

  • ISO 15985:2004 Plastics - Determination of the ultimate anaerobic biodegradation and disintegration under high-solids anaerobic-digestion conditions - Method by analysis of released biogas
  • ISO 15985:2014 Plastics - Determination of the ultimate anaerobic biodegradation under high-solids anaerobic-digestion conditions - Method by analysis of released biogas

US-CFR-file, Hydrogen peroxide for digestion

  • CFR 21-178.1005-2013 Food and drugs. Part178:Indirect food additives:adjuvants, production aids, and sanitizers. Section178.1005:Hydrogen peroxide solution.
  • CFR 21-172.167-2013 Food and drugs. Part172:Food additives permitted for direct addition to food for human consumption. Section172.167:Silver nitrate and hydrogen peroxide solution.

KR-KS, Hydrogen peroxide for digestion

  • KS M ISO 2466-2017 Potassium hydroxide for industrial use — Sampling — Test sample — Preparation of the main solution for carrying out certain determinations

IN-BIS, Hydrogen peroxide for digestion

  • IS 12308 Pt.14-1993 Methods of chemical analysis of cast iron and pig iron. Part 14: Determination of titanium by hydrogen peroxide (spectrophotometric) method (for titanium up to 0.25 percent)

Professional Standard - Petrochemical Industry, Hydrogen peroxide for digestion

  • SH/T 1748-2004 Cumene(Isopropyibenzene) for industrial use--Determination of content of phenols and cumene hydroperoxide--High performance liquid chromatographic method

PK-PSQCA, Hydrogen peroxide for digestion

  • PS 41-1958 PAKISTAN STANDARD METHODS OF TESTING FASTNESS OF DYES ON TEXTILES TO BLEACHING WITH PEROXIDE

Japanese Industrial Standards Committee (JISC), Hydrogen peroxide for digestion

  • JIS R 1708:2016 Fine ceramics (Advanced ceramics, advanced technical ceramics) -- Test method for determination of photocatalytic activity on semiconducting photocatalytic materials by dissolved oxygen consumption




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