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GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards;  We provide Chinese GB standards and English version GB standards  Lookup, Translate, Download, Imported Commodity GB standards Testing and Compliance review services.
  •  China "concentration" GB Standards List:
  • Standard  Code GB Standard Title Standard Class Order
  • GB/T 35804-2018
  • Rubber, vulcanized or thermoplastic-Resistance to ozone cracking-Test methods for determining the ozone concentration in laboratory test chambers concentration
    China National Standards
  • GB/T 34796-2017
  • Quantification and purity analysis of nucleic acid concentration in solution—Ultraviolet spectrophotometry concentration
    China National Standards
  • GB/T 34666.1-2017
  • Technical specification for compilation for water quality criteria data—Part 1:Pollutants concentration concentration
    China National Standards
  • GB/T 34536-2017
  • Natural gas—Determination of radon concentration—Scintillation flash method concentration
    China National Standards
  • GB/T 35570-2017
  • Determination of tritium activity concentration in sea water—Low-background liquid scintillation spectrometry method concentration
    China National Standards
  • GB/T 20216-2016
  • Pulp and paper—Determination of the effective residual ink concentration (ERIC number)—Infrared reflectance measurement concentration
    China National Standards
  • CJ/T 507-2016
  • (Gravity Sludge concentration Pool Perimeter Drive Concentrator) concentration
    China Urban Construction industry Standards
  • GB/T 33043-2016
  • Standard test method for determining formaldehyde concentrations in air and emission rates from wood products using a large chamber concentration
    China National Standards
  • GB 5009.225-2016
  • National Food Safety Standard - Determination of ethanol concentration concentration
    China National Standards
  • YY/T 1455-2016
  • (Application Reference measurement procedure for the catalytic activity of the enzyme concentration assignment and Uncertainty Evaluation Guide) concentration
    China Medicine & Medical Device Standards
  • GB/T 19199-2015
  • Test method for carbon acceptor concentration in semi-insulating gallium arsenide single crystals by infrared absorption spectroscopy concentration
    China National Standards
  • GB/T 17170-2015
  • Test method for the EL2 deep donor concentration in semi-insulating gallium arsenide single crystals by infrared absorption spectroscopy concentration
    China National Standards
  • DL/T 1479-2015
  • (The concentration of water vapor in the ethanolamine plant by ion chromatography) concentration
    China Electricity & Power Standards
  • JJG 846-2015
  • Dust concentration Measuring Instruments concentration
    China Metrological Standards
  • GB/T 31707-2015
  • Data processing of background atmospheric carbon monoxide concentration measured by in situ gas chromatographic (GC) system concentration
    China National Standards
  • GB/T 31709-2015
  • Data processing of background atmospheric carbon dioxide and methane concentration measured by in situ gas chromatographic (GC) system concentration
    China National Standards
  • GB/T 31705-2015
  • In situ mesaurement of background atmospheric carbon dioxide and methane concentration by gas chromatographic(GC) system concentration
    China National Standards
  • SJ/T 11496-2015
  • Determination of boron concentration in gallium arsenide by infrared absorption concentration
    China Electronics Standards
  • SJ/T 11493-2015
  • Test method for measuring nitrogen concentration in silicon substrates by secondary ion mass spectrometry concentration
    China Electronics Standards
  • AQ/T 4268-2015
  • (concentration of dust in the air of workplace rapid detection method - light scattering method) concentration
    China Safety & Security Standards
  • GB/T 31270.7-2014
  • Test guidelines on environmental safety assessment for chemical pesticides―Part 7: Bioconcentration test concentration
    China National Standards
  • SB/T 11109-2014
  • Specifications of construction management of concentration area of obsolete commodities collection and sorting concentration
    China Commerce Standards
  • GB/T 30921.1-2014
  • Test method of purified terephthalic acid (PTA) for industrial use―Part 1:Determination of concentrations of 4-carboxybenzaldehyde (4-CBA) and p-toluic acid (p-TOL) concentration
    China National Standards
  • AQ/T 1104-2014
  • (Mine low concentration gas two-phase flow of gas and water transport safety device technical specification) concentration
    China Safety & Security Standards
  • GB/T 24572.5-2013
  • Standard practice for separation and concentration of ignitable liquid residues from fire debris samples―Part 5:Purge and trap concentration concentration
    China National Standards
  • GB/T 30128-2013
  • Textiles—Testing and evaluation for negative-ion concentration concentration
    China National Standards
  • JC/T 2110-2012
  • Indoor air ion concentration test method concentration
    China Building Materials Standards
  • GB/T 50815-2013
  • Technical code of vacuum concentration treatment for weak sulfuric acid concentration
    China National Standards
  • GB/T 28628-2012
  • Test method for air ion concentration of materials concentration
    China National Standards
  • GB/T 25749.8-2012
  • Safety of machinery - Evaluation of the emission of airborne hazardous substances - Part 8: Room method for the measurement of the pollutant concentration parameter concentration
    China National Standards
  • GB/T 25749.7-2012
  • Safety of machinery - Evaluation of the emission of airborne hazardous substances - Part 7: Test bench method for the measurement of the pollutant concentration parameter concentration
    China National Standards
  • GB 27742-2011
  • Activity concentration for material not requiring radiological regulation concentration
    China National Standards
  • GB/T 27824-2011
  • Chemicals - Test method of acute inhalation toxicity - Fixed concentration procedure concentration
    China National Standards
  • GB/T 27581-2011
  • Electromagnetic interference shielding Film - Electroless copper plating solution - Method of determining concentration of Ni2+ and Cu2+ concentration
    China National Standards
  • GB/T 26572-2011
  • Requirements of concentration limits for certain restricted substances in electrical and electronic products concentration
    China National Standards
  • SN/T 2558.2-2011
  • Testing method for import and export functional textiles. Part 2: Negative ion concentration concentration
    China Import Export Inspection Standards
  • GB 19522-2010
  • Blood & breath alcohol concentration and examination for vehicle drivers concentration
    China National Standards
  • GB/T 17418.2-2010
  • Methods for analysis of noble metals in geochemical samples - Part 2:Determination of platinum and rhodium content-Preconcentration by thiourea-catalytic polarographic method concentration
    China National Standards
  • GB/T 17418.4-2010
  • Methods for analysis of noble metals in geochemical samples - Part 4: Determination of iridium content - Preconcentration by thiourea-catalytic spectrophotometric method concentration
    China National Standards
  • GB/T 17418.3-2010
  • Methods for analysis of noble metals in geochemical samples - Part 3: Determination of palladium content - Preconcentration by thiourea - graphite furnace atomic absorption spectrophotometric method concentration
    China National Standards
  • GB/T 17418.6-2010
  • Methods for analysis of noble metals in geochemical samples - Part 6: Determination of platinum, palladium and gold content - Preconcentration by fire assay - emission spectrometry concentration
    China National Standards
  • NB/T 20031-2010
  • Control of hydrogen concentration in the containment after accidents in nuclear power plants of pressurized water reactor concentration
    China Energy industry Standards
  • AQ 1076-2009
  • Code for sacurity system design of low concentration gas pipeline transportation of coal mine concentration
    China Safety & Security Standards
  • AQ 1078-2009
  • General specifications for transmission system of low concentration coal mine gas blending with water mist concentration
    China Safety & Security Standards
  • AQ 1075-2009
  • General technical specifications for low concentration coal mine gas alternating current generating sets driven by reciprocating internal combustion engine concentration
    China Safety & Security Standards
  • GB/T 24572.1-2009
  • Standard practice for separation and concentration of ignitable liquid residues from fire debris samples - Part 1: Solvent extraction concentration
    China National Standards
  • GB/T 24572.3-2009
  • Standard practice for separation and concentration of ignitable liquid residues from fire debris samples - Part 3: Activated charcoal absorption concentration
    China National Standards
  • GB/T 24572.4-2009
  • Standard practice for separation and concentration of ignitable liquid residues from fire debris samples - Part 4: Solid phase microextraction(SPME) concentration
    China National Standards
  • GB/T 24572.2-2009
  • Standard practice for separation and concentration of ignitable liquid residues from fire debris samples - Part 2: Direct headspace vapors sampling concentration
    China National Standards
  • GB/T 14146-2009
  • Silicon epitaxial layers-determination of carrier concentration-mercury probe voltages-capacitance method concentration
    China National Standards
  • GB/T 23574-2009
  • Metal cutting machine tools - Determination method of oil mist concentration concentration
    China National Standards
  • GB/T 23573-2009
  • Metal-cutting machine tools - Determination method of dust concentration concentration
    China National Standards
  • AQ 1052-2008
  • Coal mine low-concentration carrier catalytic methane transducer concentration
    China Safety & Security Standards
  • AQ 4203-2008
  • Administrative standards for personal exposure concentration of respirable rock dust in the air of workplace concentration
    China Safety & Security Standards
  • AQ 4202-2008
  • Administrative standard for personal exposure concentration of respirable coal dust in the air of workplace concentration
    China Safety & Security Standards
  • GB/T 21858-2008
  • Testing of chemicals - Bioconcentration - Semi-static fish test concentration
    China National Standards
  • GB/T 21800-2008
  • Testing of chemicals Bioconcentration - Flow-through fish test concentration
    China National Standards
  • GB/T 21844-2008
  • Standard test method for concentration limits of flammability of chemicals (vapors and gases) concentration
    China National Standards
  • YY/T 0638-2008
  • In vitro diagnostic medical devices. Measurement of quantities in biological samples. Metrological traceability of assigned values for catalytic concentration of enzymes in calibrators and control materials concentration
    China Medicine & Medical Device Standards
  • QB/T 2940-2008
  • Requirements for concentration limits for certain hazardous substances in lighting equipments concentration
    China Light Industry Standards
  • GB/T 11276-2007
  • Surface active agents - Determination of the critical micellization concentration concentration
    China National Standards
  • GB 20664-2006
  • Limitation concentration of natural radioactivity in non-ferrous metal ores and concentrates products concentration
    China National Standards
  • JC/T 1016-2006
  • Testing on negative in concentration of materials concentration
    China Building Materials Standards
  • SJ/T 11363-2006
  • Requirements for concentration limits for certain hazardous substances in electronic information products concentration
    China Electronics Standards
  • AQ 6203-2006
  • Coal mine low-concentration carrier catalytic methane transducer concentration
    China Safety & Security Standards
  • AQ 6204-2006
  • Thermal-conduction high concentration methane transducer for gas drainage concentration
    China Safety & Security Standards
  • AQ 6206-2006
  • Coal mine high-low concentration methane transducer concentration
    China Safety & Security Standards
  • GB/T 8757-2006
  • Determination of carrier concentration in gallium arsenide by the plasma resonance minimum concentration
    China National Standards
  • GB/T 11068-2006
  • Gallium arsenide epitaxial layer - determination of carrier concentration voltage-capacitance method concentration
    China National Standards
  • GB/T 20176-2006
  • Surface chemical analysis-Secondary-ion mass spectrometry-Determination of boron atomic concentration in silicon using uniformly doped materials concentration
    China National Standards
  • GB/T 20176-2006
  • Surface chemical analysis-Secondary-ion mass spectrometry-Determination of boron atomic concentration in silicon using uniformly doped materials concentration
    China National Standards
  • GB/T 19745-2005
  • Corrosion tests in artificial atmosphere at very low concentrations of polluting gas(es) concentration
    China National Standards
  • GB/T 2423.33-2005
  • Environmental testing for electric and electronic products Part 2:Test Method Test Kca:High concentration sulfur dioxide concentration
    China National Standards
  • GB 19612-2004
  • concentrationlimitation of air pollutants for the destruction of abandoned chemical weapons by Japan in China concentration
    China National Standards
  • GB 19614-2004
  • concentration limitations of pollutants in ground water for the destruction of abandoned chemical weapons by Japan in China concentration
    China National Standards
  • GB 19613-2004
  • concentration limitations of pollutants in surface water for the destruction of abandoned chemical weapons by Japan in China concentration
    China National Standards
  • GB/T 5399-2004
  • Pulps--Determination of stock concentration concentration
    China National Standards
  • GB/T 19199-2003
  • Test method for carbon concentration of semi-insulating monocrystal gallium arsenide by measurement infrared absorption method concentration
    China National Standards
  • GB 19059-2003
  • Regulation for concentration of pollutants in the workplace air for destruction of chemicalweapons abandoned in China by Japan concentration
    China National Standards
  • JJF 1074-2001
  • Measurement tables for density-concentration of alcohal concentration
    China Metrological Standards
  • SJ 20744-1999
  • General rule of infrared absorption spectral analysis for the impurity concentration in semiconductor materials concentration
    China Electronics Standards
  • HJ/T 46-1999
  • Technical conditions of detector of sulphur dioxide concentration for constant potential electrolysis method concentration
    China Environmental Protection Industry Standards
  • GB/T 17170-1997
  • Test method for deep level EL2 concentration of undoped semiinsulating monocrystal gallium arsenide by measurement infra-red absorption method concentration
    China National Standards
  • SJ 20635-1997
  • Test method for residual impurities concentration in microzone of semi-insulating gallium arsenide concentration
    China Electronics Standards
  • SJ/T 10925-1996
  • Potassium silicate solution for use in electronic industry. The methods of calculation for concentration and modulus concentration
    China Electronics Standards
  • GB/T 16425-1996
  • Determination for minimum explosive concentration of dust cloud concentration
    China National Standards
  • CJ/T 3043-1995
  • The scraper with peripheral drive for gravitational sludge concentration tank concentration
    China Urban Construction industry Standards
  • CJ/T 3043-1995
  • The scraper with peripheral drive for gravitational sludge concentration tank concentration
    China Urban Construction industry Standards
  • GB/T 16147-1995
  • Scintillation flask method for measuring radon concentration in the air concentration
    China National Standards
  • SJ 20519-1995
  • Determination of Nd concentration of Nd: YAG laser rods concentration
    China Electronics Standards
  • GB/T 15434-1995
  • Ambient air--Determination of the mass concentration of fluoride--Method by filter sampling andfluorine ion-selective electrode analysis concentration
    China National Standards
  • CJ/T 3028.2-1994
  • The measures of ozone concentration, output and specific energy consumption for ozone generator concentration
    China Urban Construction industry Standards
  • CJ/T 3028.2-1994
  • The measures of ozone concentration, output and specific energy consumption for ozone generator concentration
    China Urban Construction industry Standards
  • QB/T 1756-1993
  • (Paper-making machinery. Turbulent concentration pump) concentration
    China Light Industry Standards
  • TB/T 2323-1992
  • (Railway workplace air dust determination of the relative mass concentration and mass concentration conversion method) concentration
    China Railway & Train Standards
  • GB 14882-1994
  • Limited concentrations of radioactive materials in foods concentration
    China National Standards
  • YY 0025-1990
  • (Vacuum concentration tank) concentration
    China Medicine & Medical Device Standards
  • YY 0024-1990
  • (Extraction and concentration tank) concentration
    China Medicine & Medical Device Standards
  • JT/T 2014-1990
  • (Port dust concentration measurement method) concentration
    China Highway & Transportation Standards
  • SJ 3244.4-1989
  • Methods of measurement for profile distribution of carrier concentration of Gallium arsenide and Indium phosphide materials--Electrochemical voltage capacitance method concentration
    China Electronics Standards

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