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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 "under" GB Standards List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 42266-2022 Flexible porous polymeric materials - Laboratory evaluation of the combustion characteristics of small specimens in the horizontal direction under a small flame
    柔性多孔聚合物材料 小试样在小火焰下水平方向燃烧特性的实验室评估
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    GB/T 42164-2022 Leather - Chemical tests - Determination of hexavalent chromium content under heat aging conditions
    皮革 化学试验 热老化条件下六价铬含量的测定
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    GB/T 42267-2022 Determination of compression set of flexible porous polymeric materials under wet conditions
    柔性多孔聚合物材料 在潮湿条件下压缩永久变形的测定
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    GB/T 42261-2022 Metal and other inorganic coatings - thermal cycle test method for thermal barrier coatings under temperature gradient
    金属及其他无机覆盖层 温度梯度下热障涂层热循环试验方法
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    GB/T 42141-2022 Design criteria for radiation protection of nuclear island buildings under accident conditions in pressurized water reactor nuclear power plants
    压水堆核电厂事故工况核岛厂房辐射防护设计准则
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    GB/T 13477.23-2022 Test methods for building sealing materials - Part 23: Determination of durability after tension-compression cycles under artificial accelerated weathering
    建筑密封材料试验方法 第23部分:人工加速气候老化下拉伸-压缩循环后耐久性的测定
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    GB/T 41925-2022 Classification of Urban underground Space and Underground Engineering
    城市地下空间与地下工程分类
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    GB/T 41981.2-2022 Connections for hydraulic transmissions - Pressure fittings - Part 2: Connectable under pressure
    液压传动连接 测压接头 第2部分:可带压连接式
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    GB/T 22359.1-2022 Earth-moving and building construction machinery - Electromagnetic compatibility (EMC) of machines with built-in power supply - Part 1: General requirements for EMC under typical electromagnetic environmental conditions
    土方机械与建筑施工机械 内置电源机器的电磁兼容性(EMC) 第1部分:典型电磁环境条件下的EMC一般要求
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    GB/T 41813.2-2022 Information technology—Test methods for intelligent voice interaction—Part 2: Semantic understanding
    信息技术 智能语音交互测试方法 第2部分:语义理解
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    GB/T 21352-2022 Steel cord core flame retardant conveyor belt for underground mine
    地下矿井用钢丝绳芯阻燃输送带
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    GB/T 42059-2022 Test methods for underwater glider systems
    水下滑翔器系统试验方法
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    GB/Z 28820.4-2022 Long-term radiation aging of polymers - Part 4: Effect of different temperatures and dose rates under radiation conditions
    聚合物长期辐射老化 第4部分:辐射条件下不同温度和剂量率的影响
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    GB/T 41639-2022 Plastics Determination of disintegration rate of plastic materials under laboratory-scale simulated composting conditions
    塑料 在实验室规模模拟堆肥化条件下塑料材料崩解率的测定
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    GB/T 18380.34-2022 Fire tests of electric and optical cables under fire conditions - Part 34: vertical flame spread test for vertically mounted bunched wires and cables, class B
    电缆和光缆在火焰条件下的燃烧试验 第34部分:垂直安装的成束电线电缆火焰垂直蔓延试验 B类
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    GB/T 18380.33-2022 Fire tests of electric and optical cables under fire conditions - Part 33: vertical flame spread test for vertically mounted bunched wires and cables, class A
    电缆和光缆在火焰条件下的燃烧试验 第33部分:垂直安装的成束电线电缆火焰垂直蔓延试验 A类
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    GB/T 18380.32-2022 Fire tests of electric and optical cables under fire conditions - Part 32: vertical flame spread test for vertically mounted bunched wires and cables, class A, f / R
    电缆和光缆在火焰条件下的燃烧试验 第32部分:垂直安装的成束电线电缆火焰垂直蔓延试验 A F/R类
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    GB/T 13761.1-2022 Geosynthetics - Determination of thickness under specified pressure - Part 1: single layer products
    土工合成材料 规定压力下厚度的测定 第1部分:单层产品
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    GB/T 10811-2022 underglaze / medium color daily porcelain
    釉下/中彩日用瓷器
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    GB/T 41552-2022 Technical specification for ecological planting under Panax notoginseng forest
    三七林下生态种植技术规程
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    GB/T 41455-2022 underground pipeline element data dictionary
    地下管线要素数据字典
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    GB/T 41447-2022 Technical specification for 3D modeling of urban underground space
    城市地下空间三维建模技术规范
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    GB/T 41666.3-2022 Plastic piping systems for Trenchless repair of underground pressureless drainage networks - Part 3: close fitting lining method
    地下无压排水管网非开挖修复用塑料管道系统 第 3 部分:紧密贴合内衬法
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    GB/T 41415-2022 Textiles - Determination of dimensional change rate under dry, wet and hot conditions
    纺织品 干湿热条件下尺寸变化率的测定
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    GB/T 18380.36-2022 Tests on electric and optical fibre cables under fire conditions—Part 36:Test for vertical flame spread of vertically-mounted bunched wires or cables—Category D
    电缆和光缆在火焰条件下的燃烧试验 第36部分:垂直安装的成束电线电缆火焰垂直蔓延试验 D类
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    GB/T 18380.35-2022 Tests on electric and optical fibre cables under fire conditions - Part 35: Test for vertical flame spread of vertically-mounted bunched wires or cables - Category C
    电缆和光缆在火焰条件下的燃烧试验 第35部分:垂直安装的成束电线电缆火焰垂直蔓延试验 C类
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    GB/T 18380.31-2022 Tests on electric and optical fibre cables under fire conditions—Part 31: Test for vertical flame spread of vertically-mounted bunched wires or cables—Apparatus
    电缆和光缆在火焰条件下的燃烧试验 第31部分:垂直安装的成束电线电缆火焰垂直蔓延试验 试验装置
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    GB/T 18380.13-2022 Tests on electric and optical fibre cables under fire conditions—Part 13:Test for vertical flame propagation for a single insulated wire or cable—Procedure for determination of flaming droplets/particles
    电缆和光缆在火焰条件下的燃烧试验 第13部分:单根绝缘电线电缆火焰垂直蔓延试验 测定燃烧的滴落(物)/微粒的试验方法
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    GB/T 18380.12-2022 Tests on electric and optical fibre cables under fire conditions—Part 12:Test for vertical flame propagation for a single insulated wire or cable—Procedure for 1 kW pre-mixed flame
    电缆和光缆在火焰条件下的燃烧试验 第12部分:单根绝缘电线电缆火焰垂直蔓延试验 1 kW 预混合型火焰试验方法
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    GB/T 18380.11-2022 Tests on electric and optical fibre cables under fire conditions—Part 11:Test for vertical flame propagation for a single insulated wire or cable—Apparatus
    电缆和光缆在火焰条件下的燃烧试验 第11部分:单根绝缘电线电缆火焰垂直蔓延试验 试验装置
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    GB/T 41311.1-2022 Acoustics - Describe the quantity of underwater noise from ships and methods of measurement - Part 1: Requirements for precision measurements in deep water for comparison purposes
    声学 描述船舶水下噪声的量及其测量方法 第1部分:用于比对目的的深水精密测量要求
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    GB/T 41332-2022 Technical requirements for remote detection equipment for municipal underground pipelines
    市政地下管线远程探测设备技术要求
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    GB/T 4652-2021 Loader for underground mining—Testing method
    地下矿用装岩机和装载机 试验方法
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    GB/T 40588-2021 Technical provisions for automatic under-voltage load shedding in electric power systems
    电力系统自动低压减负荷技术规定
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    GB/T 40596-2021 Technical rules for automatic under-frequency load shedding in electric power systems
    电力系统自动低频减负荷技术规定
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    GB/T 9089.1-2021 Electrical installations for outdoor sites under heavy conditions—Part 1: Vocabulary
    户外严酷条件下的电气设施 第1部分:术语
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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 40504-2021 Management specification for water conservation on laundering of public textiles
    公用纺织品洗涤场所节水管理规范
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    GB/T 40118-2021 Plain bearings—Testing under conditions of hydrodynamic and mixed lubrication in test rigs
    滑动轴承 流体动压和混合润滑条件台架试验
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    GB/T 19216.3-2021 Circuit integrity test for electric cables or optical fiber cables under fire conditions—Part 3:Test method for fire with shock at a temperature of at least 830℃ for cables of rated voltage up to and including 0.6/1 kV tested in a metal enclosure
    在火焰条件下电缆或光缆的线路完整性试验 第3部分:火焰温度不低于830 ℃的供火并施加冲击振动,额定电压0.6/1 kV及以下电缆穿在金属管中进行的试验方法
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    GB/T 19216.2-2021 Circuit integrity test for electric cables or optical fiber cables under fire conditions - Part 2: Test method for fire with shock at a temperature of at least 830 ℃ for cables of rated voltage up to and including 0.6/1 kV and with an overall diameter not
    在火焰条件下电缆或光缆的线路完整性试验 第2部分:火焰温度不低于830 ℃的供火并施加冲击振动,额定电压0.6/1 kV及以下外径不超过20 mm电缆的试验方法
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    GB/T 19216.1-2021 Circuit integrity test for electric cables or optical fiber cables under fire conditions-Part 1:Test method for fire with shock at atemperature of at least 830 ℃ for cables of rated voltage up to and including 0.6/ 1 kV and with an overall diameter exceed
    在火焰条件下电缆或光缆的线路完整性试验 第1部分:火焰温度不低于830 ℃的供火并施加冲击振动,额定电压0.6/1 kV及以下外径超过20 mm电缆的试验方法
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    GB 16993-2021 Safety regulations for avoid working under hazardous condition of oxygen deficiency in enclosed spaces aboard ships
    防止船舶封闭处所缺氧危险作业安全规程
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    GB/T 39997-2021 Thermoplastic pipework for underground installation at petrol filling stations
    加油站埋地用热塑性塑料复合管道系统
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    GB/T 39938-2021 Electric room heating—underfloor heating—Performance characteristics—Definitions, method of testing, sizing and formula symbols
    室内电取暖 地暖 性能特征 定义、测试方法、尺寸和公式符号
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    GB/T 39748.7-2021 Urine-absorbing aids for incontinence—Test methods for characterizing polymer-based absorbent materials—Part 7:Gravimetric determination of absorption under pressure
    失禁用尿吸收辅助器具 聚合物基质吸液材料特性的测试方法 第7部分:称重法测定压力作用下的吸液量
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    GB/T 17651.2-2021 Measurement of smoke density of cables or optical fiber cables burning under defined conditions - Part 2: Test procedure and requirements
    电缆或光缆在特定条件下燃烧的烟密度测定 第2部分:试验程序和要求
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    GB/T 17651.1-2021 Measurement of smoke density of cables or optical fiber cables burning under defined conditions-Part 1:Test apparatus
    电缆或光缆在特定条件下燃烧的烟密度测定 第1部分:试验装置
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    GB 16993-2021 Safety regulations for avoid working under hazardous condition of oxygen deficiency in enclosed spaces aboard ships
    防止船舶封闭处所缺氧危险作业安全规程
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    GB/T 39624-2020 Technical specification for underwater topographic survey of airborne lidar
    机载激光雷达水下地形测量技术规范
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    GB/T 39383-2020 Thermoplastics piping systems for underground non-pressure applications—Test method for leaktightness of elastomeric sealing ring type joints
    埋地用无压热塑性塑料管道系统 弹性密封圈接头的密封性能试验方法
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    GB/T 39227-2020 Immunity time testing method under voltage dip for sensitive process rated less than 1000 V
    1000 V以下敏感过程电压暂降免疫时间测试方法
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    GB/T 50455-2020 Standayd for design of underground oil storage in rock caverns
    地下水封石洞油库设计标准
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    GB/T 38832-2020 Technical requirements of broadband customer networking based on public telecommunication network—High-speed visible light communications under lighting constrains
    基于公用电信网的宽带客户网络联网技术要求 通照一体化高速可见光通信
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    GB/T 38430-2019 Corrosion of metals and alloys—Test method for isothermal-exposure oxidation testing under high-temperature corrosion conditions for metallic materials
    金属和合金的腐蚀 金属材料在高温腐蚀条件下的等温暴露氧化试验方法
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    GB/T 51358-2019 Standard for urban underground space planning
    城市地下空间规划标准
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    GB/T 37990-2019 Technical requirements of anti-washout admixture for underwater concrete
    水下不分散混凝土絮凝剂技术要求
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    GB/T 37921-2019 Wind turbines generator system under high altitude
    高海拔型风力发电机组
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    GB/T 37825-2019 Test method for simulating wind pressure resistance of building glass under the uniform static loads
    建筑玻璃均布静载模拟风压试验方法
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    GB/T 37807-2019 Technical specification for underground goaf survey of open-pit coal mine
    露天煤矿井采采空区勘查技术规范
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    GB/T 19472.1-2019 Polyethylene structure wall pipeline system for underground usage—Part 1: Polyethylene double wall corrugated pipes
    埋地用聚乙烯(PE)结构壁管道系统 第1部分:聚乙烯双壁波纹管材
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    GB/T 18477.3-2019 Unplasticized polyvinyl chloride (PVC-U) structure wall pipeline system for underground soil waste and drainage—Part 3: Axial hollow-wall construction pipes
    埋地排水用硬聚氯乙烯(PVC-U)结构壁管道系统 第3部分:轴向中空壁管材
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    GB/T 37449-2019 Design requirements for offshore cranes under ice condition
    冰区环境下海洋平台起重机的设计要求
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    GB/T 1634.2-2019 Plastics-Determination of temperature of deflection under load-Part 2:Plastics and ebonite
    塑料 负荷变形温度的测定 第2部分:塑料和硬橡胶
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    GB/T 1634.1-2019 Plastics—Determination of temperature of deflection under load—Part 1:General test method
    塑料 负荷变形温度的测定 第1部分:通用试验方法
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    GB/T 37255-2018 Test method for pyroelectric coefficient of materials under DC bias field
    偏置电场下材料热释电系数测试方法
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    GB/T 3480.6-2018 Calculation of load capacity of spur and helical gears—Part 6:Calculation of service life under variable load
    直齿轮和斜齿轮承载能力计算-第6部分:变载荷条件下的使用寿命计算
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    GB 3847-2018 Limits and measurement methods for emissions form diesel vehicles under free acceleration and lugdown cycle
    柴油车污染物排放限值及测量方法(自由加速法及加载减速法)
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    GB/T 51336-2018 Seismic design standard for underground structures
    地下结构抗震设计标准
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    GB/T 50299-2018 Construction quality acceptance criteria for underground railway projects [two volumes]
    地下铁道工程施工质量验收标准[两册]
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    GB/T 51310-2018 underground railway construction standard
    地下铁道工程施工标准
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    GB/T 35451.2-2018 Polypropylene(PP) structure-wall piping systems for underground drainage and sewerage—Part 2: Polypropylene spirally enwound structure-wall pipes
    埋地排水排污用聚丙烯(PP)结构壁管道系统-第2部分:聚丙烯缠绕结构壁管材
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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
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    GB 18285-2018 Limits and measurement methods for emissions from gasoline vehicles under two-speed idle conditions and simple driving mode conditions
    汽油车污染物排放限值及测量方法(双怠速法及简易工况法)
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    GB/T 36264-2018 Test method for tensile strength of fiber composites under ultrahigh temperature and oxidizing environment
    超高温氧化环境下纤维复合材料拉伸强度试验方法
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    GB/T 223.82-2018 Steel and iron—Determination of hydrogen content—Thermal conductivity/infrared method after fusion under inert gas
    钢铁 氢含量的测定 惰性气体熔融-热导或红外法
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    GB/T 36212-2018 Non-destructive testing—Acoustic testing method and evaluation for the cement bond of underground metal component
    无损检测 地下金属构件水泥防护层胶结声波检测及结果评价
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    GB/T 36511-2018 underwater emergency breathing apparatus for helicopter
    直升机用水下应急呼吸器
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    GB/T 36666-2018 Guidelines for underwater ship cleaning
    船舶水下清洗指南
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    GB/T 11048-2018 Textiles-Physiological effects-Measurement of thermal and water-vapour resistance under steady-state conditions(sweating guarded-hotplate test)
    纺织品 生理舒适性 稳态条件下热阻和湿阻的测定(蒸发热板法)
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    GB/T 4074.21-2018 Winding wires test methods—Part 21: Electrical endurance under high frequency voltage impulses
    绕组线试验方法 第21部分:耐高频脉冲电压性能
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    GB/T 35636-2017 Specification for surveying and mapping of urban underground space
    城市地下空间测绘规范
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    GB/T 19472.2-2017 Polyethylene structure-wall piping systems for underground usage—Part2: Polyethylene spirally enwound structure-wall pipes
    埋地用聚乙烯(PE)结构壁管道系统 第2部分:聚乙烯缠绕结构壁管材
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    GB/T 22566-2017 Electrical insulating materials and systems—General method of evaluation of electrical endurance under repetivive voltage impulses
    电气绝缘材料和系统 重复电压冲击下电气耐久性评定的通用方法
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    GB/T 17213.2-2017 Industrial-process control valves—Part 2-1: Flow capacity—Sizing equations for fluid flow under installed conditions
    工业过程控制阀 第2-1部分:流通能力 安装条件下流体流量的计算公式
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    GB/T 23642-2017 Electrical insulating materials and systems—Electrical measurement of partial discharges(PD) under short rise time and repetitive voltage impulses
    电气绝缘材料和系统 瞬时上升和重复电压冲击条件下的局部放电(PD)电气测量
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    GB/T 21448-2017 Specification of cathodic protection for underground steel pipelines
    埋地钢质管道阴极保护技术规范
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    GB/T 35451.1-2017 Polypropylene(PP) structure-wall piping systems for underground drainage and sewerage—Part 1:Polypropylene double wall corrugated pipes
    埋地排水排污用聚丙烯(PP)结构壁管道系统 第1部分:聚丙烯双壁波纹管材
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    GB/T 35370-2017 Testing methods for self-contained underwater breathing apparatus(SCUBA)
    潜水呼吸器检测方法
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    GB/T 35644-2017 Specification for data acquisition of underground pipeline
    地下管线数据获取规程
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    GB/T 35426.1-2017 Acoustics—Determination of dynamic stiffness—Part 1: Materials used under floating floors in dwellings
    声学 动刚度测定 第1部分:普通浮筑楼板下的弹性材料
    China National Standards
    under

    English PDF
    GB/T 34130.22-2017 Powertrack systems—Part 22: Particular requirements for powertrack systems intended for on floor or under floor installation
    电源母线系统 第22部分:用于地面和地下安装的电源母线系统的特殊要求
    China National Standards
    under

    English PDF
    GB/T 18271.2-2017 Process measurement and control devices—General methods and procedures for evaluating performance—Part 2:Tests under reference conditions
    过程测量和控制装置 通用性能评定方法和程序 第2部分:参比条件下的试验
    China National Standards
    under

    English PDF
    GB/T 8190.9-2017 Reciprocating internal combustion engines—Exhaust emission measurement—Part 9: Test cycles and test procedures for test-bed measurement of exhaust gas smoke emissions from compression ignition engines operating under transient conditions
    往复式内燃机 排放测量 第9部分:压燃式发动机瞬态工况排气烟度的试验台测量用试验循环和测试规程
    China National Standards
    under

    English PDF
    GB/T 33921-2017 underground rubber-tyred mining machines—Performance requirements and test procedures for brake systems
    地下轮胎式采矿车辆 制动系统的性能要求和试验方法
    China National Standards
    under

    English PDF
    GB/T 33797-2017 Plastics—Determination of the ultimate anaerobic biodegradation under high-solids anaerobic-digestion conditions—Method by analysis of released biogas
    塑料 在高固体份堆肥条件下最终厌氧生物分解能力的测定 采用分析测定释放生物气体的方法
    China National Standards
    under

    English PDF
    GB/T 34179-2017 Photovoltaic glass—Accelerated aging test method under multi-factor coupling conditions
    光伏玻璃 多因素耦合环境加速老化试验方法
    China National Standards
    under

    English PDF
    GB/T 14048.13-2017 Low-voltage switchgear and controlgear—Part 5-3: Control circuit devices and switching elements—Requirements for proximity devices with defined behaviour under fault conditions (PDDB)
    低压开关设备和控制设备 第5-3部分:控制电路电器和开关元件 在故障条件下具有确定功能的接近开关(PDDB)的要求
    China National Standards
    under

    English PDF
    GB 11567-2017 Motor vehicles and trailers-lateral and rear underrun protection requirements
    汽车及挂车侧面和后下部防护要求
    China National Standards
    under

    English PDF
    GB/T 34211-2017 Iron ores—Method for determination of iron reduction softening drippinger performance under load
    铁矿石 高温荷重还原软熔滴落性能测定方法
    China National Standards
    under

    English PDF

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