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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 "sphere" GB Standards List:
  • Standard  Code GB Standard Title Standard Class Order
  • GB/T 33696-2017
  • Specification for land surface-atmosphere and air-sea flux observations sphere
    China National Standards
  • GB/T 20936.4-2017
  • Gas detectors for explosive atmospheres—Part 4:Performance requirements of open path detectors for flammable gases sphere
    China National Standards
  • GB/T 35684-2017
  • Technique requirements for explosion suppression material in fuel tank explosive atmospheres sphere
    China National Standards
  • GB/T 34663-2017
  • General technical requirements for electric resistance heaters used in explosive gas atmospheres sphere
    China National Standards
  • GB/T 20936.3-2017
  • Gas detectors for explosive atmospheres—Part 3: Guidance on functional safety of fixed gas detection systems sphere
    China National Standards
  • GB/T 20936.2-2017
  • Gas detectors for explosive atmospheres—Part 2:Selection,installation,use and maintenance of detectors for flammable gases and oxygen sphere
    China National Standards
  • GB/T 20936.1-2017
  • Gas detectors for explosive atmospheres—Part 1: Performance requirements of detectors for flammable gases sphere
    China National Standards
  • GB/T 19518.2-2017
  • Explosive atmospheres—Electrical resistance traces heating—Part 2: Application guide for design,installation and maintenance sphere
    China National Standards
  • GB/T 3836.7-2017
  • Explosive atmospheres—Part 7: Equipment protection by powder filling “q” sphere
    China National Standards
  • GB/T 3836.6-2017
  • Explosive atmospheres—Part 6:Equipment protection by liquid immersion“o” sphere
    China National Standards
  • GB/T 3836.11-2017
  • Explosive atmospheres—Part 11: Material characteristics for gas and vapourclassification—Test methods and data sphere
    China National Standards
  • GB/T 3836.18-2017
  • Explosive atmospheres—Part 18: Intrinsically safe electrical systems sphere
    China National Standards
  • GB/T 3836.15-2017
  • Explosive atmospheres—Part 15: Electrical installations design, selection and erection sphere
    China National Standards
  • GB/T 3836.22-2017
  • Explosive atmospheres—Part 22: Protection of equipment and transmission system using optical radiation sphere
    China National Standards
  • GB/T 3836.16-2017
  • Explosive atmospheres―Part 16: Electrical installations inspection and maintenance sphere
    China National Standards
  • GB/T 3836.24-2017
  • Explosive atmospheres—Part 24: Equipment protection by special protection “s” sphere
    China National Standards
  • GB/T 33433-2016
  • Marine controlled atmosphere(CA) fresh-keeping storage system sphere
    China National Standards
  • SB/T 11150-2015
  • Technical specification for conservation of Chinese medicinal materials by controlled atmosphere sphere
    China Commerce Standards
  • QB/T 2613.12-2015
  • Tools for explosive atmospheres. Screwdriver for slotted head screws for explosive atmospheres sphere
    China Light Industry Standards
  • QB/T 2613.11-2015
  • Tools for explosive atmospheres. Screwdriver for recessed-head screws for explosive atmospheres sphere
    China Light Industry Standards
  • QB/T 2613.13-2015
  • Tools for explosive atmospheres. Engineers pliers for explosive atmospheres sphere
    China Light Industry Standards
  • QB/T 2613.14-2015
  • Tools for explosive atmospheres. Combination wrenches for explosive atmospheres sphere
    China Light Industry Standards
  • GB 31094-2014
  • Safety rules for the construction and installation of lifts for explosive atmospheres sphere
    China National GB Standards
  • GB 3836.8-2014
  • Explosive atmospheres―Part 8: Equipment protection by type of protection “n” sphere
    China National GB Standards
  • GB 3836.14-2014
  • Explosive atmospheres—Part 14: Classification of areas—Explosive gas atmosphere sphere
    China National GB Standards
  • GB 3836.9-2014
  • Explosive atmospheres―Part 9: Equipment protection by type of protection “m” sphere
    China National GB Standards
  • GB/T 11039.4-2014
  • Textiles―Tests for colour fastness―Colour fastness to contaminants―Part 4: Oxides of nitrogen in the atmosphere at high humidities sphere
    China National GB Standards
  • GB 50058-2014
  • Code for design of electrical installations in explosive atmospheres sphere
    China National GB Standards
  • GB 31224-2014
  • Specifications for observing environs protection of atmosphere background watch station sphere
    China National GB Standards
  • JC/T 2284-2014
  • Test methods of isostatic compression strength (hydrostatic collapse strength), oil absorption and floatation ratio for hollow glass microspheres sphere
    China Building Materials Standards
  • GB/T 13163.4-2014
  • Radiation protection instrumentation―Radon and radon decay product measuring instruments―Part 4: Equipment for the production of reference atmospheres containing radon isotopes and their decay products (STAR) sphere
    China National GB Standards
  • GB/T 30691-2014
  • Conveyor belts—Test atmospheres and conditioning periods sphere
    China National Standards
  • QB/T 4738-2014
  • Luminaires protected by increased safety for explosive atmosphere sphere
    China Light Industry Standards
  • QB/T 4737-2014
  • Luminaires protected by flameproof enclosures for explosive atmosphere sphere
    China Light Industry Standards
  • JC/T 2285-2014
  • Test method for isostatic compression strength (microspheres-gas compression) for hollow glass microspheres sphere
    China Building Materials Standards
  • GB 3836.13-2013
  • Explosive atmospheres―Part 13: Equipment repair, overhaul and reclamation sphere
    China National GB Standards
  • GB/T 10686-2013
  • Testing method of copper alloy tools for explosive atmospheres sphere
    China National GB Standards
  • DL/T 1200-2013
  • Power industry labor environment monitoring and protection technological specification for hazardous working in oxygen deficiency atmosphere sphere
    China Electricity & Power Standards
  • JJF 1422-2013
  • Calibration Specification for Coordinated Measuring spheres sphere
    China Metrological Standards
  • GB/T 28533.1-2012
  • Coupling connector for use in explosive gas atmospheres - Part 1: Type of protection “n” coupling connector sphere
    China National Standards
  • GB/T 10125-2012
  • Corrosion tests in artificial atmospheres - Salt spray tests sphere
    China National GB Standards
  • GB/T 24513.3-2012
  • Corrosion of metals and alloys - Classification of low corrosivity of indoor atmospheres - Part 3: Measurement of environmental parameters affecting indoor corrosivity sphere
    China National Standards
  • GB/T 28783-2012
  • Pneumatic fluid power - Standard reference atmosphere sphere
    China National Standards
  • GB/T 28416-2012
  • Corrosion tests in artificial atmospheres - Accelerated corrosion tests involving alternate exposure to corrosion-promoting gases, neutral salt-spray and drying sphere
    China National Standards
  • SB/T 10931-2012
  • Controlled atmosphere storage appliance. Hollow fiber membrane nitrogen generator sphere
    China Commerce Standards
  • SB/T 10930-2012
  • Controlled atmosphere storage appliance. Carbon dioxide scrubber sphere
    China Commerce Standards
  • SB/T 10929-2012
  • Controlled atmosphere storage appliance. Ethylene absorber sphere
    China Commerce Standards
  • SB/T 10932-2012
  • Controlled atmosphere storage appliance. Molecular sieve oxygen adsorber sphere
    China Commerce Standards
  • SB/T 10933-2012
  • Controlled atmosphere test box sphere
    China Commerce Standards
  • GB/T 12085.20-2011
  • Optics and optical instruments - Environmental test methods - Part 20: Humid atmosphere containing sulfur dioxide or hydrogen sulfide sphere
    China National GB Standards
  • GB 25286.5-2010
  • Non-electrical equipment for use in potentially explosive atmospheres - Part 5: Protection by constructional safety “c” sphere
    China National GB Standards
  • GB 3836.1-2010
  • Explosive atmospheres - Part 1: Equipment - General requirements sphere
    China National GB Standards
  • GB 3836.2-2010
  • Explosive atmospheres - Part 2: Equipment protection by flameproof enclosures “d” sphere
    China National GB Standards
  • GB 25286.1-2010
  • Non-electrical equipment for potentially explosive atmospheres - Part 1: Basic method and requirements sphere
    China National GB Standards
  • GB 25286.3-2010
  • Non-electrical equipment for use in potentially explosive atmospheres - Part 3: Protection by flameproof enclosure“d” sphere
    China National GB Standards
  • GB 25286.8-2010
  • Non-electrical equipment for potentially explosive atmospheres - Part 8: Protection by liquid immersion “k” sphere
    China National GB Standards
  • GB 25286.6-2010
  • Non-electrical equipment for use in potentially explosive atmospheres - Part 6: Protection by control of ignition source “b” sphere
    China National GB Standards
  • GB 25285.1-2010
  • Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and methodology sphere
    China National GB Standards
  • GB/T 24513.2-2010
  • Corrosion of metals and alloys - Classification of low corrosivity of indoor atmospheres - Part 2: Determination of corrosion attack in indoor atmospheres sphere
    China National Standards
  • GB 3836.3-2010
  • Explosive atmospheres - Part 3: Equipment protection by increased safety “e” sphere
    China National GB Standards
  • GB/T 25834-2010
  • Corrosion of metals and alloys - Accelerate corrosion testing of iron and steel in outdoor atmospheres sphere
    China National Standards
  • GB 3836.4-2010
  • Explosive atmospheres - Part 4: Equipment protection by intrinisic safety “i” sphere
    China National GB Standards
  • GB 3836.19-2010
  • Explosive atmospheres - Part 19: Fieldbus intrinsically safe concept (FISCO) sphere
    China National GB Standards
  • GB 25286.2-2010
  • Non-electrical equipment for potentially explosive atmospheres - Part 2: Protection by flow restricting enclosure“fr” sphere
    China National GB Standards
  • GB 25285.2-2010
  • Explosive atmospheres - Explosion prevention and protection - Part 2: Basic concepts and methodology for mining sphere
    China National GB Standards
  • GB 3836.18-2010
  • Explosive atmospheres - Part 18: Intrinsically safe system sphere
    China National GB Standards
  • GB/T 25715-2010
  • sphere nodular cast pipe mold finish machining project sphere
    China National Standards
  • GB/T 25273-2010
  • Films for liquid crystal display(LCD) - Determination of haze with integrating sphere sphere
    China National Standards
  • GB 3836.20-2010
  • Explosive atmospheres - Part 20: Equipment with equipment protection level (EPL) Ga sphere
    China National GB Standards
  • JJG 21-2010
  • Tobacco. Verification Regulation of Atmosphere Condition for Laboratory sphere
    China Metrological Standards
  • JJG(YC)21-2010
  • Tobacco. Verification Regulation of Atmosphere Condition for Laboratory sphere
    China Metrological Standards
  • GB/T 24513.1-2009
  • Corrosion of metals and alloys - Classification of low corrosivity of indoor atmospheres - Part 1: Determination and estimation of indoor corrosivity sphere
    China National Standards
  • GB/T 24133-2009
  • Rubber-or plastics-coated fabrics - Standard atmospheres for conditioning and testing sphere
    China National Standards
  • GB/T 23244-2009
  • Fruit and vegetables - Principles and techniques of the controlled atmosphere method of storage sphere
    China National Standards
  • GB 3836.12-2008
  • Explosive atmospheres - Part 12: Classification of gases or vapours with air according to their maximum experimental safe gaps and minimum igniting current sphere
    China National GB Standards
  • GB/T 2900.35-2008
  • Electrotechnical terminology - Equipment for explosive atmospheres sphere
    China National Standards
  • GB 5959.13-2008
  • Safety in electroheat installations - Part 13: particular requirements for electroheat installation with explosive atmosphere sphere
    China National GB Standards
  • GB 3836.11-2008
  • Explosive atmospheres - Part 11: Equipment protection by flameproof enclosures "d" - Method of test for ascertainment of maximum experimental safe gap sphere
    China National GB Standards
  • GB 20800.3-2008
  • General rules of explosion-protect techniques of reciprocating internal combustion engines for explosive atmospheres - Part 3: Group I engines for use in underground workings susceptible to firedamp and/or combustible dust sphere
    China National GB Standards
  • GB/T 22049-2008
  • Footwear - Standard atmospheres for conditioning and testing of footwear and components for footwear sphere
    China National GB Standards
  • GB/T 6403.1-2008
  • Radii of sphere surfaces sphere
    China National Standards
  • GB/T 6529-2008
  • Textiles - Standard atmospheres for conditioning and testing sphere
    China National Standards
  • LS/T 1213-2008
  • Technical regulations for controlled atmosphere storage of grain by purging carbon dioxide sphere
    China Food industry Standards
  • GB 3836.17-2007
  • Electrical apparatus for explosive gas atmosphere - Part 13: Construction and use of rooms or buildings protected by pressurization sphere
    China National GB Standards
  • GB/T 4059-2007
  • Polycrystalline silicon - examination method - zone - melting on phosphorus under controlled atomosphere sphere
    China National Standards
  • GB/T 20853-2007
  • Corrosion of metals and alloys - corrosion in artificial atmosphere - accelerated corrosion test involving exposure under controlled conditions of humidity cycling and intermittent spraying of a salt solution sphere
    China National GB Standards
  • SB/T 10447-2007
  • Fruits and vegetables. Principles and techniques of the controlled atmosphere method of storage sphere
    China Commerce Standards
  • GB/T 20121-2006
  • Corrosion of metals and alloys -- Corrosion tests in artificial atmosphere -- Accelerated outdoor test by intermittent spraying of a salt solution (Scab test) sphere
    China National GB Standards
  • GB 3836.16-2006
  • Electrical apparatus for explosive gas atmospheres―Part 16: Inspection and maintenance of electrical installation(other than mines) sphere
    China National GB Standards
  • GB 20800.2-2006
  • General rules of explosion-protect techniques of reciprocating internal combustion engines for explosive atmospheres - Part 2: Group Ⅱengines for use in flammable dust atmospheres sphere
    China National GB Standards
  • GB 20800.1-2006
  • General rules of explosion-protect techniques of reciprocating internal combustion engines for explosive atmospheres - Part 1: Group Ⅱengines for use in flammable gas and vapor atmospheres sphere
    China National GB Standards
  • GB/T 20505-2006
  • Anodizing of aluminium and its alloys - Measurement of reflectance characteristics of aluminium surfaces using integrating - sphere instruments sphere
    China National GB Standards
  • CJ/T 231-2006
  • Unplasticized polyvinyl chloride (PVC-U) and glass microsphere composite pipes for drainage sphere
    China Urban Construction industry Standards
  • CJ/T 231-2006
  • Unplasticized polyvinyl chloride (PVC-U) and glass microsphere composite pipes for drainage sphere
    China Urban Construction industry Standards
  • GB 19854-2005
  • General rules of explosion-proof techniques of industrial trucks for explosive atmospheres sphere
    China National GB Standards
  • GB/T 19745-2005
  • Corrosion tests in artificial atmosphere at very low Concentrations of polluting gas(es) sphere
    China National GB Standards
  • GB/T 11039.3-2005
  • Textiles-Tests for colour fastness-Colour fastness to Contaminants part3:ozone in the atmosphere sphere
    China National GB Standards
  • GB/T 3871.11-2005
  • Agricultural tractors-Test procedures-Part 11:Suitability tests for hot atmosphere sphere
    China National Standards
  • SJ 20919-2005
  • Computational method for radar cross-sections of homogeneous spheres sphere
    China Electronics Standards
  • QB/T 2613.8-2005
  • Tools for explosive atmospheres. Adjustable wrenches for explosive atmospheres sphere
    China Light Industry Standards

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