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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 Standard Title Standard Class Order
    GB/Z 42245-2022 Space Environment Applied Estimation of Solar Wind Energy Input to the Earth's Magnetosphere Using the Ground-Based Pole Cover (PC) Index
    空间环境 利用地基磁极盖(PC)指数对输入地球磁层的太阳风能量的应用估算
    China National Standards
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    GB/T 20936.1-2022 Gas detectors for explosive atmospheres - Part 1: Performance requirements for combustible gas detectors
    爆炸性环境用气体探测器 第1部分:可燃气体探测器性能要求
    China National Standards
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    GB/T 3836.36-2022 Explosive atmospheres - Part 36: Electrical safety devices for the control of potential sources of ignition in explosion-proof equipment
    爆炸性环境 第36部分:控制防爆设备潜在点燃源的电气安全装置
    China National Standards
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    GB/T 3836.21-2022 Explosive atmospheres - Part 21: Application of the quality management system for the production of explosion-proof products
    爆炸性环境 第21部分:防爆产品生产质量管理体系的应用
    China National Standards
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    GB/T 3836.16-2022 Explosive atmospheres - Part 16: Inspection and maintenance of electrical installations
    爆炸性环境 第16部分:电气装置的检查与维护
    China National Standards
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    GB/T 3836.11-2022 Explosive atmospheres - Part 11: Classification of properties of gases and vapors - Test methods and data
    爆炸性环境 第11部分:气体和蒸气物质特性分类 试验方法和数据
    China National Standards
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    GB/T 41206-2021 Space environment (natural and artificial) -- Cosmic ray and solar energetic particle penetration inward the magnetosphere -- Method of determination of the effective vertical cut-off rigidity
    空间环境(自然和人工) 宇宙线和太阳能量粒子穿入磁层 有效垂直地磁截止刚度的确定方法
    China National Standards
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    GB/T 3836.9-2021 Explosive atmospheres—Part 9:Equipment protection by encapsulation “m”
    爆炸性环境 第9部分:由浇封型“m”保护的设备
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    GB/T 3836.4-2021 Explosive atmospheres—Part 4:Equipment protection by intrinsic safety“i”
    爆炸性环境 第4部分:由本质安全型“i”保护的设备
    China National Standards
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    GB/T 3836.3-2021 Explosive atmospheres—Part 3:Equipment protection by increased safety“e”
    爆炸性环境 第3部分:由增安型“e”保护的设备
    China National Standards
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    GB/T 3836.2-2021 Explosive atmospheres—Part 2:Equipment protection by flameproof enclosures “d”
    爆炸性环境 第2部分:由隔爆外壳“d”保护的设备
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    GB/T 3836.1-2021 Explosive atmospheres—Part 1:Equipment—General requirements
    爆炸性环境 第1部分:设备 通用要求
    China National Standards
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    GB/T 3836.33-2021 Explosive atmospheres—Part 33:Equipment in adverse service conditions
    爆炸性环境 第33部分:严酷工作条件用设备
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    GB/T 3836.34-2021 Explosive atmospheres—Part 34:Equipment assemblies
    爆炸性环境 第34部分:成套设备
    China National Standards
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    GB/T 3836.30-2021 Explosive atmospheres—Part 30: Equipment and components in explosive atmospheres in underground mines
    爆炸性环境 第30部分:地下矿井爆炸性环境用设备和元件
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    GB/T 3836.32-2021 Explosive atmospheres—Part 32:Intrinsically safe systems with electronically controlled spark duration limitation
    爆炸性环境 第32部分:电子控制火花时限本质安全系统
    China National Standards
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    GB/T 25285.2-2021 Explosive atmospheres—Explosion prevention and protection—Part 2:Basic concepts and methodology for mining
    爆炸性环境 爆炸预防和防护 第2部分:矿山爆炸预防和防护的基本原则和方法
    China National Standards
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    GB/T 25285.1-2021 Explosive atmospheres—Explosion prevention and protection—Part 1: Basic concepts and methodology
    爆炸性环境 爆炸预防和防护 第1部分:基本原则和方法
    China National Standards
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    GB/T 3836.35-2021 Explosive atmospheres—Part 35:Classification of areas for explosive dust atmospheres
    爆炸性环境 第35部分:爆炸性粉尘环境场所分类
    China National Standards
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    GB/T 3836.29-2021 Explosive atmospheres—Part 29:Non-electrical equipment for explosive atmospheres—Constructional safety “c”,control of ignition source “b”, liquid immersion “k”
    爆炸性环境 第29部分:爆炸性环境用非电气设备 结构安全型“c”、控制点燃源型“b”、液浸型“k”
    China National Standards
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    GB/T 3836.28-2021 Explosive atmospheres—Part 28:Non-electrical equipment for explosive atmospheres—Basic method and requirements
    爆炸性环境 第28部分:爆炸性环境用非电气设备 基本方法和要求
    China National Standards
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    GB/T 3836.31-2021 Explosive atmospheres—Part 31:Equipment dust ignition protection by enclosure “t”
    爆炸性环境 第31部分: 由防粉尘点燃外壳“t”保护的设备
    China National Standards
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    GB/T 3836.13-2021 Explosive atmospheres—Part 13: Equipment repair, overhaul, reclamation and modification
    爆炸性环境 第13部分:设备的修理、检修、修复和改造
    China National Standards
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    GB/T 3836.8-2021 Explosive atmospheres—Part 8: Equipment protection by type of protection “n”
    爆炸性环境 第8部分:由“n”型保护的设备
    China National Standards
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    GB/T 3836.5-2021 Explosive atmospheres—Part 5:Equipment protection by pressurized enclosure p
    爆炸性环境 第5部分:由正压外壳“p”保护的设备
    China National Standards
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    GB/T 40531.1-2021 Ships and marine technology—Specifications for gas detectors intended for use on board ships—Part 1:Portable gas detectors for atmosphere testing of enclosed spaces
    船舶与海上技术 船用气体探测器规范 第1部分:围蔽处所的便携式气体探测器
    China National Standards
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    GB/T 40340-2021 Composites and metal assemblies—Galvanic corrosion tests of carbon fibre reinforced plastics (CFRPs) related bonded or fastened structures in artificial atmospheres—Salt spray tests
    复合材料与金属组合件 碳纤维增强聚合物基复合材料胶接或紧固件连接结构人工环境下的电偶腐蚀试验 盐雾试验
    China National Standards
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    GB/T 10125-2021 Corrosion tests in artificial atmospheres—Salt spray tests
    人造气氛腐蚀试验 盐雾试验
    China National Standards
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    GB/T 39359-2020 Integrating sphere method for the test of liquid/solid suspended photocatalytic hydrogen production reaction
    积分球法测量悬浮式液固光催化制氢反应
    China National Standards
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    GB/T 38749-2020 Technical requirements of controlled atmosphere heat treatment
    可控气氛热处理技术要求
    China National Standards
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    GB/T 3836.26-2019 Explosive atmospheres—Part 26:Electrostatic hazards—Guidance
    爆炸性环境 第26部分:静电危害 指南
    China National Standards
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    GB/T 3836.27-2019 Explosive atmospheres—Part 27:Electrostatic hazards—Test
    爆炸性环境 第27部分:静电危害 试验
    China National Standards
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    GB/T 3836.25-2019 Explosive atmospheres—Part 25:Requirements for process sealing between flammable process fluids and electrical systems
    爆炸性环境 第25部分:可燃性工艺流体与电气系统之间的工艺密封要求
    China National Standards
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    GB/T 3836.17-2019 Explosive atmospheres—Part 17: Equipment protection by pressurized room “p”and artifically ventilated room “v”
    爆炸性环境 第17部分:由正压房间“p”和人工通风房间“v”保护的设备
    China National Standards
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    GB/T 3836.12-2019 Explosive atmospheres—Part 12:Material characteristics for combustible dusts—Test methods
    爆炸性环境 第12部分:可燃性粉尘物质特性 试验方法
    China National Standards
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    GB/T 51374-2019 Standard for electrical installation engineering construction and acceptance in explosives and powders atmosphere
    火炸药环境电气安装工程施工及验收标准
    China National Standards
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    GB/T 37669-2019 Automated guided vehicle(AGV) safety protection requirements in the application of dangerous production atmosphere
    自动导引车(AGV)在危险生产环境应用的安全规范
    China National Standards
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    GB/T 22049-2019 Footwear—Standard atmospheres for conditioning and testing of footwear and components for footwear
    鞋类 鞋类和鞋类部件环境调节及试验用标准环境
    China National Standards
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    GB/T 37592-2019 Carbonaceous mesophase spheres
    中间相炭微球
    China National Standards
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    GB/T 2918-2018 Plastics—Standard atmospheres for conditioning and testing
    塑料-试样状态调节和试验的标准环境
    China National Standards
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    GB/T 19854-2018 General rules of explosion-proof techniques of industrial trucks for explosive atmospheres
    爆炸性环境用工业车辆防爆技术通则
    China National Standards
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    GB/T 4059-2018 Test method for phosphorus content in polycrystalline silicon by zone-melting method under controlled atmosphere
    硅多晶气氛区熔基磷检验方法
    China National Standards
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    GB/T 19292.2-2018 Corrosion of metals and alloys—Corrosivity of atmospheres—Part 2: Guiding values for the corrosivity categories
    金属和合金的腐蚀 大气腐蚀性 第2部分:腐蚀等级的指导值
    China National Standards
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    GB/T 19292.1-2018 Corrosion of metals and alloys—Corrosivity of atmospheres—Part 1: Classification, determination and estimation
    金属和合金的腐蚀 大气腐蚀性 第1部分:分类、测定和评估
    China National Standards
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    GB/T 34542.2-2018 Storage and transportation systems for gaseous hydrogen—Part 2: Test methods for evaluating metallic material compatibility in hydrogen atmosphere
    氢气储存输送系统 第2部分:金属材料与氢环境相容性试验方法
    China National Standards
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    GB/T 19292.4-2018 Corrosion of metals and alloys—Corrosivity of atmospheres—Part 4: Determination of corrosion rate of standard specimens for the evaluation of corrosivity
    金属和合金的腐蚀 大气腐蚀性 第4部分:用于评估腐蚀性的标准试样的腐蚀速率的测定
    China National Standards
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    GB/T 19292.3-2018 Corrosion of metals and alloys—Corrosivity of atmospheres—Part 3: Measurement of environmental parameters affecting corrosivity of atmospheres
    金属和合金的腐蚀 大气腐蚀性 第3部分:影响大气腐蚀性环境参数的测量
    China National Standards
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    GB/T 4937.13-2018 Semiconductor devices—Mechanical and climatic test methods—Part 13: Salt atmosphere
    半导体器件 机械和气候试验方法 第13部分:盐雾
    China National Standards
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    GB/T 35853.6-2018 List of aerospace equivalent terms—Part 6:Standard atmosphere
    航空航天等效术语表 第6部分:标准大气
    China National Standards
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    GB/T 3836.24-2017 Explosive atmospheres—Part 24: Equipment protection by special protection “s”
    爆炸性环境 第24部分:由特殊型“s”保护的设备
    China National Standards
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    GB/T 3836.22-2017 Explosive atmospheres—Part 22: Protection of equipment and transmission system using optical radiation
    爆炸性环境 第22部分:光辐射设备和传输系统的保护措施
    China National Standards
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    GB/T 3836.15-2017 Explosive atmospheres—Part 15: Electrical installations design, selection and erection
    爆炸性环境 第15部分:电气装置的设计、选型和安装
    China National Standards
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    GB/T 3836.18-2017 Explosive atmospheres—Part 18: Intrinsically safe electrical systems
    爆炸性环境 第18部分:本质安全电气系统
    China National Standards
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    GB/T 3836.11-2017 Explosive atmospheres—Part 11: Material characteristics for gas and vapourclassification—Test methods and data
    爆炸性环境 第11部分:气体和蒸气物质特性分类 试验方法和数据
    China National Standards
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    GB/T 3836.6-2017 Explosive atmospheres—Part 6:Equipment protection by liquid immersion“o”
    爆炸性环境 第6部分:由液浸型“o”保护的设备
    China National Standards
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    GB/T 3836.7-2017 Explosive atmospheres—Part 7: Equipment protection by powder filling “q”
    爆炸性环境 第7部分:由充砂型“q”保护的设备
    China National Standards
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    GB/T 3836.16-2017 Explosive atmospheres―Part 16: Electrical installations inspection and maintenance
    爆炸性环境 第16部分:电气装置的检查与维护
    China National Standards
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    GB/T 19518.2-2017 Explosive atmospheres—Electrical resistance traces heating—Part 2: Application guide for design,installation and maintenance
    爆炸性环境 电阻式伴热器 第2部分:设计、安装和维护指南
    China National Standards
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    GB/T 20936.1-2017 Gas detectors for explosive atmospheres—Part 1: Performance requirements of detectors for flammable gases
    爆炸性环境用气体探测器 第1部分:可燃气体探测器性能要求
    China National Standards
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    GB/T 20936.2-2017 Gas detectors for explosive atmospheres—Part 2:Selection,installation,use and maintenance of detectors for flammable gases and oxygen
    爆炸性环境用气体探测器 第2部分:可燃气体和氧气探测器的选型、安装、使用和维护
    China National Standards
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    GB/T 20936.3-2017 Gas detectors for explosive atmospheres—Part 3: Guidance on functional safety of fixed gas detection systems
    爆炸性环境用气体探测器 第3部分:固定式气体探测系统功能安全指南
    China National Standards
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    GB/T 34663-2017 General technical requirements for electric resistance heaters used in explosive gas atmospheres
    爆炸性气体环境用电阻加热器通用技术要求
    China National Standards
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    GB/T 20936.4-2017 Gas detectors for explosive atmospheres—Part 4:Performance requirements of open path detectors for flammable gases
    爆炸性环境用气体探测器 第4部分:开放路径可燃气体探测器性能要求
    China National Standards
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    GB/T 35684-2017 Technique requirements for explosion suppression material in fuel tank explosive atmospheres
    燃油容器爆炸性环境阻隔抑爆材料技术要求
    China National Standards
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    GB/T 3836.5-2017 Explosive atmospheres—Part 5:Equipment protection by pressurized enclosure “p“
    爆炸性环境 第5部分: 由正压外壳“p”保护的设备
    China National Standards
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    GB/T 19518.1-2017 Explosive atmospheres—Electrical resistance traces heating—Part 1: General and testing requirements
    爆炸性环境 电阻式伴热器 第1部分:通用和试验要求
    China National Standards
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    GB/T 3836.21-2017 Explosive atmospheres—Part 21:Application of quality systems for equipment manufacture
    爆炸性环境 第21部分:设备生产质量体系的应用
    China National Standards
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    GB/T 3836.23-2017 Explosive atmospheres—Part 23:Group I,category EPL Ma equipment intended to remain functional in atmospheres endangered by firedamp and/or coal dust
    爆炸性环境 第23部分:用于瓦斯和/或煤尘环境的I类EPL Ma级设备
    China National Standards
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    GB 50058-2014 Code for design of electrical installations in explosive atmospheres
    爆炸危险环境电力装置设计规范
    China National Standards
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    GB/T 33696-2017 Specification for land surface-atmosphere and air-sea flux observations
    陆-气和海-气通量观测规范
    China National Standards
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    GB/T 33433-2016 Marine controlled atmosphere(CA) fresh-keeping storage system
    船用气调保鲜系统
    China National Standards
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    GB/T 8867-2001 Simple controlled atmospheres cold storage technique of garlic bolt
    蒜苔简易气调冷藏技术
    China National Standards
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    GB/T 6529-2008 Textiles - Standard atmospheres for conditioning and testing
    纺织品 调湿和试验用标准大气
    China National Standards
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    GB/T 6403.1-2008 Radii of sphere surfaces
    球面半径
    China National Standards
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    GB/T 4059-2007 Polycrystalline silicon - examination method - zone - melting on phosphorus under controlled atomosphere
    硅多晶气氛区熔基磷检验方法
    China National Standards
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    GB/T 3871.11-2005 Agricultural tractors-Test procedures-Part 11:Suitability tests for hot atmosphere
    农业拖拉机 试验规程 第11部分:高温性能试验
    China National Standards
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    GB/T 30691-2014 Conveyor belts—Test atmospheres and conditioning periods
    输送带 试验环境和状态调节时间
    China National Standards
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    GB/T 2918-1998 Plastics--Standard atmospheres for conditioning and testing
    塑料试样状态调节和试验的标准环境
    China National Standards
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    GB/T 2900.35-2008 Electrotechnical terminology - Equipment for explosive atmospheres
    电工术语 爆炸性环境用设备
    China National Standards
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    GB/T 28783-2012 Pneumatic fluid power - Standard reference atmosphere
    气动 标准参考大气
    China National Standards
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    GB/T 28533.1-2012 Coupling connector for use in explosive gas atmospheres - Part 1: Type of protection “n” coupling connector
    爆炸性气体环境用电气耦合连接器 第1部分:“n”型耦合连接器
    China National Standards
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    GB/T 28416-2012 Corrosion tests in artificial atmospheres - Accelerated corrosion tests involving alternate exposure to corrosion-promoting gases, neutral salt-spray and drying
    人工大气中的腐蚀试验 交替暴露在腐蚀性气体、中性盐雾及干燥环境中的加速腐蚀试验
    China National Standards
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    GB/T 25834-2010 Corrosion of metals and alloys - Accelerate corrosion testing of iron and steel in outdoor atmospheres
    金属和合金的腐蚀 钢铁户外大气加速腐蚀试验
    China National Standards
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    GB/T 25715-2010 sphere nodular cast pipe mold finish machining project
    离心球墨铸管管模
    China National Standards
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    GB/T 25273-2010 Films for liquid crystal display(LCD) - Determination of haze with integrating sphere
    液晶显示器(LCD)用薄膜 雾度测定方法 积分球法
    China National Standards
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    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
    金属和合金的腐蚀 室内大气低腐蚀性分类 第3部分:影响室内大气腐蚀性的环境参数测定
    China National Standards
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    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
    金属和合金的腐蚀 室内大气低腐蚀性分类 第2部分:室内大气腐蚀性的测定
    China National Standards
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    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
    金属和合金的腐蚀 室内大气低腐蚀性分类 第1部分:室内大气腐蚀性的测定与评价
    China National Standards
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    GB/T 24133-2009 Rubber-or plastics-coated fabrics - Standard atmospheres for conditioning and testing
    橡胶或塑料涂覆织物 调节和试验的标准环境
    China National Standards
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    GB/T 23244-2009 Fruit and vegetables - Principles and techniques of the controlled atmosphere method of storage
    水果和蔬菜 气调贮藏技术规范
    China National Standards
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    GB/T 22049-2008 Footwear - Standard atmospheres for conditioning and testing of footwear and components for footwear
    鞋类 鞋类和鞋类部件环境调节及试验用标准环境
    China National Standards
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    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
    金属和合金的腐蚀 人造大气中的腐蚀 暴露于间歇喷洒盐溶液和潮湿循环受控条件下的加速腐蚀试验
    China National Standards
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    GB/T 20505-2006 Anodizing of aluminium and its alloys - Measurement of reflectance characteristics of aluminium surfaces using integrating - sphere instruments
    铝及铝合金阳极氧化 阳极氧化膜表面反射特性的测定 积分球法
    China National Standards
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    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)
    金属和合金的腐蚀 人造气氛的腐蚀试验 间歇盐雾下的室外加速试验(疮痂试验)
    China National Standards
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    GB/T 19745-2005 Corrosion tests in artificial atmosphere at very low Concentrations of polluting gas(es)
    人造低浓度污染气氛中的腐蚀试验
    China National Standards
    sphere

    English PDF
    GB/T 19518.2-2004 Electrical apparatus for explosive gas atmospheres--Electrical resistance trace heating--Part 2:Application guide for design,installation and maintenance
    爆炸性气体环境用电气设备 电阻式伴热器 第2部分:设计、安装和维护指南
    China National Standards
    sphere

    English PDF
    GB/T 19292.4-2003 Corrosion of metals and alloys--Corrosivity of atmospheres--Determination of corrosion rate of standard specimens for the evaluation of corrosivity
    金属和合金的腐蚀 大气腐蚀性 用于评估腐蚀性的标准试样的腐蚀速率的测定
    China National Standards
    sphere

    English PDF
    GB/T 19292.3-2003 Corrosion of metals and alloys--Corrosivity of atmospheres--Measurement of pollution
    金属和合金的腐蚀 大气腐蚀性 污染物的测量
    China National Standards
    sphere

    English PDF
    GB/T 19292.2-2003 Corrosion of metals andalloys--Corrosivity of atmospheres--Guiding values for the corrosivity categories
    金属和合金的腐蚀 大气腐蚀性 腐蚀等级的指导值
    China National Standards
    sphere

    English PDF
    GB/T 19292.1-2003 Corrosion of metals and alloys--Corrosivity of atmospheres--Classification
    金属和合金的腐蚀 大气腐蚀性 分类
    China National Standards
    sphere

    English PDF

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