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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 "Co" GB Standards English PDF List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 40281-2021 Determination of Content of nonmetallic inclusions in steel—Extremum analytical method
    钢中非金属夹杂物含量的测定 极值分析法
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    GB/T 40280-2021 Plastics—Resins in the liquid state or as emulsions or dispersions—Determination of apparent visCosity using a single cylinder type rotational viscometer method
    塑料 液态或乳液态或分散体系的树脂 用单筒旋转黏度计测定表观黏度
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    GB/T 40279-2021 Test method for thickness of films on siliCon wafer surface—Optical reflection method
    硅片表面薄膜厚度的测试 光学反射法
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    GB/T 40202-2021 Requirements for logistics information interchange in cross-border e-Commerce
    跨境电子商务物流信息交换要求
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    GB/T 40065-2021 Specification for circular sharing management of fruit and vegetable cycling Container
    果蔬类周转箱循环共用管理规范
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    GB/T 39907-2021 Dimensions and technical requirements of fruit and vegetable cycling Container
    果蔬类周转箱尺寸系列及技术要求
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    GB/T 39715.4-2021 Plastics—Biobased Content—Part 4: Determination of biobased mass content
    塑料 生物基含量 第4部分:生物基物质含量的测定
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    GB/T 39715.3-2021 Plastics—Biobased Content—Part 3:Determination of biobased synthetic polymer content
    塑料 生物基含量 第3部分:生物基合成聚合物含量的测定
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    GB/T 39715.2-2021 Plastics—Biobased Content—Part 2: Determination of biobased carbon content
    塑料 生物基含量 第2部分:生物基碳含量的测定
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    GB/T 39715.1-2021 Plastics—Biobased Content—Part 1: General principles
    塑料 生物基含量 第1部分:通用原则
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    GB/T 38206.5-2021 Methods to assess the reliability of pneumatic Components—Part 5: Non-return valves, shuttle valves, dual pressure valves (AND function), one-way adjustable flow control valves, quick-exhaust valves
    气动元件可靠性评估方法 第5部分:止回阀、梭阀、双压阀(与阀)、单向节流阀及快排阀
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    GB/T 38206.4-2021 Methods to assess the reliability of pneumatic Components—Part 4: Pressure regulators
    气动元件可靠性评估方法 第 4 部分:调压阀
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    GB/T 34830.2-2021 Collection specifications for credit information—Part 2: Contents
    信用信息征集规范 第2部分:内容
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    GB/T 34520.8-2021 Test methods of Continuous silicon carbide fibers—Part 8:Oxygen content
    连续碳化硅纤维测试方法 第8部分:氧含量
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    GB/T 34015.4-2021 ReCovery of traction battery used in electric vehicle—Echelon use—Part 4: Labels for echelon used battery products
    车用动力电池回收利用 梯次利用 第4部分:梯次利用产品标识
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    GB/T 34015.3-2021 ReCovery of traction battery used in electric vehicle—Echelon use—Part 3:Echelon using requirement
    车用动力电池回收利用 梯次利用 第3部分:梯次利用要求
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    GB/T 33863.9-2021 OPC unified architecture—Part 9: Alarms and Conditions
    OPC统一架构 第9部分:报警和条件
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    GB/T 28907-2021 Sulfuric acid dew-point Corrosion resistance steel plate and strip
    耐硫酸露点腐蚀钢板和钢带
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    GB/T 26745-2021 Basalt fiber Composites for civil engineering structures
    土木工程结构用玄武岩纤维复合材料
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    GB/T 25915.8-2021 Cleanrooms and associated Controlled environments—Part 8: Classification of air cleanliness by chemical concentration (ACC)
    洁净室及相关受控环境 第8部分:按化学物浓度划分空气洁净度(ACC)等级
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    GB/T 25915.2-2021 Cleanrooms and associated Controlled environments—Part 2: Monitoring to provide evidence of cleanroom performance related to air cleanliness by particle concentration
    洁净室及相关受控环境 第2部分:洁净室空气粒子浓度的监测
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    GB/T 25915.1-2021 Cleanrooms and associated Controlled environments—Part 1: Classification of air cleanliness by particle concentration
    洁净室及相关受控环境 第1部分:按粒子浓度划分空气洁净度等级
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    GB/T 25915.10-2021 Cleanrooms and associated Controlled environments—Part 10: Classification of surface cleanliness by chemical concentration
    洁净室及相关受控环境 第10部分:按化学物浓度划分表面洁净度等级
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    GB/T 24347-2021 DC/DC Converter for electric vehicles
    电动汽车DC/DC变换器
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    GB/T 20899.6-2021 Methods for chemical analysis of gold ores—Part 6: Determination of zinc Content
    金矿石化学分析方法 第6部分:锌量的测定
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    GB/T 20899.5-2021 Methods for chemical analysis of gold ores—Part 5: Determination of lead Content
    金矿石化学分析方法 第5部分:铅量的测定
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    GB/T 20899.4-2021 Methods for chemical analysis of gold ores—Part 4: Determination of Copper content
    金矿石化学分析方法 第4部分:铜量的测定
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    GB/T 20728-2021 Measurement of fluid flow in closed Conduits—Guidance to the selection, installation and use of Coriolis flowmeters
    封闭管道中流体流量的测量 科里奥利流量计的选型、安装和使用指南
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    GB/T 17564.6-2021 Standard data element types with associated classification scheme for electric Components—Part 6: IEC Common Data Dictionary (IEC CDD) quanlity guidelines
    电气元器件的标准数据元素类型和相关分类模式 第6部分:IEC公共数据字典(IEC CDD)质量指南
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    GB/T 15970.10-2021 Corrosion of metals and alloys—Stress corrosion testing—Part l0: Reverse U-bend method
    金属和合金的腐蚀 应力腐蚀试验 第10部分:反向U型弯曲试验方法
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    GB/T 15969.9-2021 Programmable Controllers—Part 9: Single-drop digital communication interface for small sensors and actuators (SDCI)
    可编程序控制器 第9部分:用于小型传感器和执行器的单点数字通信接口(SDCI)
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    GB/T 15901-2021 Chemical reagent—Copper(Ⅱ) chloride dihydrate
    化学试剂 二水合氯化铜(氯化铜)
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    GB/T 15596-2021 Plastics—Determination of changes in Colour and variations in properties after exposure to glass-filtered solar radiation, natural weathering or laboratory radiation sources
    塑料 在玻璃过滤后太阳辐射、自然气候或实验室辐射源暴露后颜色和性能变化的测定
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    GB/T 15224.2-2021 Classification for quality of Coal—Part 2: Sulfur content
    煤炭质量分级 第2部分:硫分
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    GB/T 15104-2021 DeCorative veneered wood-based panel
    装饰单板贴面人造板
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    GB/T 15078-2021 Testing method for Contact resistance of precious metals electrical contact materials
    贵金属电触点材料接触电阻的测量方法
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    GB/T 14949.2-2021 Manganese ores—Determination of nickel Content—Flame atomic absorption spectrometric method
    锰矿石 镍含量的测定 火焰原子吸收光谱法
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    GB/T 14949.11-2021 Manganese ores—Determination of carbon Content—Gravimetric method and infrared absorption method
    锰矿石 碳含量的测定 重量法和红外线吸收法
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    GB/T 14637-2021 Determination of Copper,iron and zinc in industrial circulating cooling water and scale—Atomic absorption spectrometric method
    工业循环冷却水及水垢中铜、铁、锌的测定 原子吸收光谱法
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    GB/T 14636-2021 Determination of calcium and magnesium in industrial circulating Cooling water and scale—Atomic absorption spectrometric method
    工业循环冷却水及水垢中钙、镁的测定 原子吸收光谱法
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    GB/T 14527-2021 Compound dampling isolator and compound damper
    复合阻尼隔振器和复合阻尼器
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    GB/T 14172-2021 Bench test methods of static roll stability for motor vehicles, trailers and Combination vehicles
    汽车、挂车及汽车列车静侧倾稳定性台架试验方法
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    GB/T 12639-2021 Methods of in-orbit testing for GEO Communication satellite payload performance
    地球同步轨道通信卫星有效载荷在轨测试方法
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    GB/T 11701-2021 The general rules for marine acComodation ladders
    船用舷梯的基本规定
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    GB/T 10812-2021 Pierced deCoration domestic porcelain
    玲珑日用瓷器
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    GB/T 10715-2021 Belt drives—V-ribbed belts, joined V-belts and V-belts including wide section belts and hexagonal belts—Electrical Conductivity of antistatic belts: Characteristics and methods of test
    带传动 多楔带、联组V带及包括宽V带、六角带在内的单根V带 抗静电带的导电性:要求和试验方法
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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
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    GB/T 8013.5-2021 Anodic oxide Coatings and organic polymer coatings on aluminium and its alloys—Part 5: Function coatings
    铝及铝合金阳极氧化膜与有机聚合物膜 第5部分:功能膜
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    GB/T 8013.4-2021 Anodic oxide Coatings and organic polymer coatings on aluminium and its alloys—Part 4: Texture coatings
    铝及铝合金阳极氧化膜与有机聚合物膜 第4部分:纹理膜
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    GB/T 7739.6-2021 Methods for chemical analysis of gold Concentrates—Part 6: Determination of zinc content
    金精矿化学分析方法 第6部分:锌量的测定
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    GB/T 7739.5-2021 Methods for chemical analysis of gold Concentrates—Part 5: Determination of lead content
    金精矿化学分析方法 第5部分:铅量的测定
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    GB/T 7731.5-2021 Ferrotungsten—Determination of siliCon content—Silicomolybdenum blue spectrophotometric method
    钨铁 硅含量的测定 硅钼蓝分光光度法
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    GB/T 7731.4-2021 Ferrotungsten—Determination of phosphorus Content—Phosphorus molybdenum blue spectrophotometric method
    钨铁 磷含量的测定 磷钼蓝分光光度法
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    GB/T 7731.1-2021 Ferrotungsten—Determination of tungsten Content—Cinchonine gravimetric method and ammonium nitrate gravimetric method
    钨铁 钨含量的测定 辛可宁重量法和硝酸铵重量法
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    GB/T 7731.10-2021 Ferrotungsten—Determination of carbon Content—Infrared absorption method
    钨铁 碳含量的测定 红外线吸收法
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    GB/T 7187.1-2021 Fuel oil Consumption for transportation ships—Part 1: Calculation method for marine ships
    运输船舶燃油消耗量 第1部分:海洋船舶计算方法
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    GB/T 5687.13-2021 Ferrochromium—Determination of chromium, siliCon, manganese, titanium, vanadium, iron contents—Wavelength dispersive X-ray fluorescence spectrometry (fused cast bead method)
    铬铁 铬、硅、锰、钛、钒和铁含量的测定 波长色散X射线荧光光谱法(熔铸玻璃片法)
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    GB/T 5235-2021 Designation and chemical Composition of wrought nickel and nickel alloy
    加工镍及镍合金牌号和化学成分
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    GB/T 5195.11-2021 Fluorspar—Determination of manganese Content—Periodate spectrophotometry and flame atomic absorption spectrometry
    萤石 锰含量的测定 高碘酸盐分光光度法和火焰原子吸收光谱法
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    GB/T 4678.15-2021 Die casting dies—Components—Part 15: Spacer blocks
    压铸模 零件 第15部分:垫块
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    GB/T 4214.13-2021 Test method for noise of household and similar electrical appliances—Particular requirements for range hoods and other Cooking fume extractors
    家用和类似用途电器噪声测试方法 吸油烟机及其他烹饪烟气吸排装置的特殊要求
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    GB/T 3639-2021 Seamless Cold-drawn or cold-rolled steel tubes for precision applications
    冷拔或冷轧精密无缝钢管
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    GB/T 3075-2021 Metallic materials—Fatigue testing—Axial force-Controlled method
    金属材料 疲劳试验 轴向力控制方法
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    GB/T 1727-2021 General methods for preparation of Coating films
    漆膜一般制备法
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    GB/T 1392-2021 Ships and marine technology—Deck machinery—AcCommodation ladder winches
    船舶与海洋技术 甲板机械 舷梯绞车
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    GB/T 223.91-2021 Iron, steel and alloy—Determination of Copper—2,2’-Biquinoline spectrophotometric method
    钢铁及合金 铜含量的测定 2,2'-联喹啉分光光度法
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    GB/T 223.90-2021 Iron, steel and alloy—Determination of siliCon content—Inductively coupled plasma atomic emission spectrometric method
    钢铁及合金 硅含量的测定 电感耦合等离子体原子发射光谱法
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    GB/T 40377-2021 Corrosion of metals and alloys—Determination of AC corrosion—Protection criteria
    金属和合金的腐蚀 交流腐蚀的测定 防护准则
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    GB/T 40376-2021 Cement based binder for interior deCoration
    室内装修用水泥基胶结料
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    GB/T 40375-2021 Technical specification of Corrosion control operation for metal connection (fastening) structure
    金属连接(紧固)结构耐蚀作业技术规范
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    GB/T 40374-2021 Hardmetals—Determination of lead and cadmium Content—Flame atomic absorption spectrometric method and inductively coupled plasma atomic emission spectrometry
    硬质合金化学分析方法 铅量和镉量的测定 火焰原子吸收光谱法和电感耦合等离子体原子发射光谱法
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    GB/T 20311-2021 Building Components and building elements—Thermal resistance and thermal transmittance—Calculation methods
    建筑构件和建筑单元 热阻和传热系数 计算方法
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    GB/T 20081.3-2021 Pneumatic fluid power—Compressed air pressure regulators and filter-regulators—Part 3:Alternative test methods for measuring the flow-rate characteristics of pressure regulators
    气动 减压阀和过滤减压阀 第3部分:测试减压阀流量特性的可选方法
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    GB/T 20081.2-2021 Pneumatic fluid power—Compressed air pressure regulators and filter-regulators—Part 2: Test methods to determine the main characteristics to be included in literature from suppliers
    气动 减压阀和过滤减压阀 第 2 部分:评定商务文件中应包含的主要特性的试验方法
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    GB/T 20081.1-2021 Pneumatic fluid power—Compressed air pressure regulators and filter-regulators—Part 1:Main characteristics to be included in literature from suppliers and product-marking requirements
    气动 减压阀和过滤减压阀 第1部分:商务文件中应包含的主要特性和产品标识要求
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    GB/T 19963.1-2021 Technical specification for Connecting wind farm to power system—Part 1: On shore wind power
    风电场接入电力系统技术规定 第1部分:陆上风电
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    GB/T 19559-2021 Method of determining Coalbed methane content
    煤层气含量测定方法
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    GB/T 40500-2021 Determination of total aromatics Composition in aviation fuels—Gas chromatography
    喷气燃料中芳烃总量的测定 气相色谱法
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    GB/T 40499-2021 General Condition of vehicle dynamics test for heavy vehicles and buses
    重型汽车操纵稳定性试验通用条件
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    GB/T 40498-2021 General principles of drafting energy Consumption norm standards for public institutions
    公共机构能耗定额标准编制通则
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    GB/T 40496-2021 Determination of antioxidant Content in jet fuel—High performance liquid chromatography
    喷气燃料中抗氧剂含量的测定 高效液相色谱法
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    GB/T 40493-2021 Determination of lead, cadmium, chromium and mercury Content in the finishing material of wood-based panel
    人造板饰面材料中铅、镉、铬、汞重金属元素含量测定
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    GB/T 40491-2021 Guide for specialized farmers Cooperatives development
    农民专业合作社建设指南
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    GB/T 40488-2021 Code of practice on propagation of toxicodendron verniciflu
    漆树育苗技术规程
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    GB/T 40486-2021 Determination of melittin Content in bee venom powder—High performance liquid chromatography
    蜂毒干粉中蜂毒溶血肽含量的测定 高效液相色谱法
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    GB/T 40485-2021 Method of determining automatically the random reflectance of vitrinite in Coal—Image analysis method
    煤的镜质体随机反射率自动测定 图像分析法
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    GB/T 16840.7-2021 Technical determination methods for electrical fire evidence—Part 7:Component analytic method of energy dispersive spectrometry
    电气火灾痕迹物证技术鉴定方法 第7部分:EDS成分分析法
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    GB/T 16840.3-2021 Technical determination methods for electrical fire evidence—Part 3: Auger electron spectrosCopy component analytic method
    电气火灾痕迹物证技术鉴定方法 第3部分:俄歇分析法
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    GB/T 40551-2021 Comparative testing of consumer products and related services-General principles
    消费品和有关服务的比较试验 总则
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    GB/T 40543-2021 Petroleum and natural gas industries—Materials selection for high Content CO2 for casing, tubing and downhole equipment
    石油天然气工业 高含CO2环境用套管、油管及井下工具的材料选择
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    GB/T 19010-2021 Quality management—Customer satisfaction—Guidelines for Codes of conduct for organizations
    质量管理 顾客满意 组织行为规范指南
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    GB/T 40490-2021 Technical terms in raw lacquer and deCorative technique
    生漆髹饰工艺术语
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    GB/T 40489-2021 Code of practice of chinese lacquer tapping
    生漆采割技术规程
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    GB/T 40553-2021 Plastics—Specifications for plastics suitable for home Composting
    塑料 适合家庭堆肥塑料技术规范
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    GB 23350-2021 Requirements of restricting excessive package—Foods and Cosmetics
    限制商品过度包装要求 食品和化妆品
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    GB 40554.1-2021 Code of safety practice for offshore oil & gas exploration and production—Part 1:General
    海洋石油天然气开采安全规程 第1部分:总则
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    GB 20826-2021 Code of safety for the use of high pressure water jetting equipment by divers
    潜水员高压水射流作业安全规程
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    GB 14391-2021 Performance requirements for satellite emergency position indicating radio beaCons
    卫星紧急无线电示位标性能要求
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    GB/T 40474-2021 Banking application system—Guideline for handling with Code and identifier
    银行业应用系统 代码与编码处置指南
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    GB/T 40473.4-2021 Banking application system—Nonfunctional requirement—Part 4: Compatibility
    银行业应用系统 非功能需求 第4部分:兼容性
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