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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 "" GB Standards List:
  • Standard  Code Standard Title Standard Class Order
    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 40644-2021 Determination of geniposidic acid in extract of eucommia ulmoides oliver leaf—HPLC
    杜仲叶提取物中京尼平苷酸的检测 高效液相色谱法
    China National Standards

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    GB/T 40643-2021 Determination of hyperoside in extract of crataegus pinnatifida leaf—HPLC
    山楂叶提取物中金丝桃苷的检测 高效液相色谱法
    China National Standards

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    GB/T 40642-2021 Determination of 1-deoxynojirimycin in extract of mulberry leaf—HPLC
    桑叶提取物中1-脱氧野尻霉素的检测 高效液相色谱法
    China National Standards

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    GB/T 40641-2021 Determination of polyprenol from pine needles—High performance liquid chromatography
    松针聚戊烯醇含量的测定 高效液相色谱法
    China National Standards

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    GB/T 40660-2021 Information security technology—General requirements for biometric information protection
    信息安全技术 生物特征识别信息保护基本要求
    China National Standards

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    GB/T 40651-2021 Information security technique—Entity authentication assurance framework
    信息安全技术 实体鉴别保障框架
    China National Standards

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    GB/T 40650-2021 Information security technology—Trusted computing specification—Trusted platform control module
    信息安全技术 可信计算规范 可信平台控制模块
    China National Standards

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    GB/T 40619-2021 Technical specification for lightning nowcasting and warning based on lightning location system
    基于雷电定位系统的雷电临近预警技术规范
    China National Standards

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    GB/T 14949.6-2021 Manganese ores—Determination of copper,lead and zinc content—Flame atomic absorption spectrometric method
    锰矿石 铜、铅和锌含量的测定 火焰原子吸收光谱法
    China National Standards

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    GB/T 9766.6-2021 Test method for tyre valve - Part 6: Test method for core
    轮胎气门嘴试验方法 第6部分: 气门芯试验方法
    China National Standards

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    GB/T 40621-2021 Drawing method of cloud-to-ground lightning density distribution map
    地闪密度分布图绘制方法
    China National Standards

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    GB/T 12690.4-2021 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 4: Determination of oxygen and nitrogen contents—Impulse-infrared absorption and impulse-thermal conductivity method
    稀土金属及其氧化物中非稀土杂质化学分析方法 第4部分:氧、氮量的测定 脉冲-红外吸收法和脉冲-热导法
    China National Standards

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    GB/T 40798-2021 Chemical analysis method of ion-adsorption rare earth ore—Determination of total rare earth contents—Inductively coupled plasma mass spectrometry
    离子型稀土原矿化学分析方法 稀土总量的测定 电感耦合等离子体质谱法
    China National Standards

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    GB/T 40795.2-2021 Chemical analysis methods of lanthanum-cerium metals and their compounds—Part 2:Determination of rare earth content
    镧铈金属及其化合物化学分析方法 第2部分:稀土量的测定
    China National Standards

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    GB/T 40795.1-2021 Chemical analysis method of lanthanum-cerium metals and their compounds—Part 1:Determination of cerium content—Ammonium ferrous sulfate titration method
    镧铈金属及其化合物化学分析方法 第1部分:铈量的测定 硫酸亚铁铵滴定法
    China National Standards

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    GB/T 40854-2021 Lanthanum-cerium metal
    镧铈金属
    China National Standards

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    GB/T 40790-2021 Sintered cerium-based and cerium-rich permanent magnet materials
    烧结铈及富铈永磁材料
    China National Standards

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    GB/T 22271.2-2021 Plastics -- Polyoxymethylene(POM) moulding and extrusion materials -- Part 2: Preparation of test specimens and determination of properties
    塑料 聚甲醛(POM)模塑和挤出材料 第2部分:试样制备和性能测定
    China National Standards

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    GB/T 13542.2-2021 Plastic films for electrical purposes—Part 2:Methods of test
    电气绝缘用薄膜 第2部分:试验方法
    China National Standards

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    GB/T 22271.1-2021 Plastics -- Polyoxymethylene(POM) moulding and extrusion materials -- Part 1: Designation system and basis for specification
    塑料 聚甲醛(POM)模塑和挤出材料 第1部分:命名系统和分类基础
    China National Standards

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    GB/T 40672-2021 Clinical laboratory testing—Criteria for acceptable lots of dehydrated Mueller-Hinton agar and broth for antimicrobial susceptibility testing
    临床实验室检验 抗菌剂敏感试验脱水MH琼脂和肉汤可接受批标准
    China National Standards

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    GB/T 40791-2021 Non-destructive testing of steel tubes—Radiographic testing of the weld seam of welded steel tubes for the detection of imperfections
    钢管无损检测 焊接钢管焊缝缺欠的射线检测
    China National Standards

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    GB/T 40802-2021 Carbon and low alloy cast steels for general applications
    通用铸造碳钢和低合金钢铸件
    China National Standards

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    GB/T 40729-2021 Fatigue life test method for precision gear transmission
    精密齿轮传动装置疲劳寿命试验方法
    China National Standards

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    GB/T 40796-2021 Corrosion of metals and alloys—Guidelines for applying statistics to analysis of corrosion data
    金属和合金的腐蚀 腐蚀数据分析应用统计学指南
    China National Standards

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    GB/T 20933-2021 Hot rolled sheet pile
    热轧钢板桩
    China National Standards

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    GB/T 15514-2021 Codes for ports and other locations of the People's Republic of China
    中华人民共和国口岸及相关地点代码
    China National Standards

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    GB/T 40792-2021 Test method of weight loss of sintered neodymium iron boron permanent magnets
    烧结钕铁硼永磁体失重试验方法
    China National Standards

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    GB/T 40793-2021 Nonmetallic coatings for sintered neodymium iron boron permanent magnets
    烧结钕铁硼表面涂层
    China National Standards

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    GB/T 40628-2021 Test method for seed cotton lint percentage—Process of sawtooth pattern
    籽棉衣分率试验方法 锯齿型试轧法
    China National Standards

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    GB/T 40762-2021 Evaluation specification of administrative service satisfaction
    政务服务满意度评价规范
    China National Standards

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    GB/T 23884-2021 Determination of biogenic amines in animal-derived feeds—High performance liquid chromatography
    动物源性饲料中生物胺的测定 高效液相色谱法
    China National Standards

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    GB/T 40712-2021 General technical specification for multipurpose goods vehicle
    多用途货车通用技术条件
    China National Standards

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    GB/T 40817.2-2021 Specification for nuclear power reactor coolant pump motor—Part 2:Asynchronous motor for canned motor pump
    核电主泵电机技术条件 第2部分:屏蔽泵异步电机
    China National Standards

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    GB/T 40817.1-2021 Specification for nuclear power reactor coolant pump motor—Part 1:Asynchronous motor for shaft sealing pump
    核电主泵电机技术条件 第1部分:轴封泵异步电机
    China National Standards

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    GB/T 40692-2021 Definition and scope for government information system
    政务信息系统定义和范围
    China National Standards

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    GB/T 40534-2021 Ships and marine technology—Loose gear of lifting appliances on ships—Hooks
    船舶与海洋技术 船用起重设备可拆卸零部件 吊钩
    China National Standards

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    GB/T 40533-2021 Ships and marine technology—Loose gear of lifting appliances on ships—Pulleys
    船舶与海洋技术 船用起重设备可拆卸零部件 滑轮装置
    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 40530-2021 Ships and marine technology—Safety valve for cargo tanks of LNG carriers—Design and testing requirements
    船舶和海上技术 液化天然气运输船液货舱安全阀 设计与试验要求
    China National Standards

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    GB/T 40529-2021 Ships and marine technology—Cargo winches
    船舶与海洋技术 起货绞车
    China National Standards

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    GB/T 40528.1-2021 Requirements for structural dimensions of multi-hull yacht—Part 1:Composite material
    多体游艇结构尺寸规定 第1部分:复合材料
    China National Standards

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    GB/T 40523.3-2021 Ships and marine technology—Measurement of changes in hull and propeller performance—Part 3: Alternative methods
    船舶与海上技术 船体和螺旋桨性能变化测量 第3部分:替代方法
    China National Standards

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    GB/T 40523.2-2021 Ships and marine technology—Measurement of changes in hull and propeller performance—Part 2: Default method
    船舶与海上技术 船体和螺旋桨性能变化测量 第2部分:默认方法
    China National Standards

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    GB/T 40388-2021 Test method for shear strength of C/C composites
    碳/碳复合材料剪切强度试验方法
    China National Standards

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    GB/T 40386-2021 Recycling materials for pure aluminium
    再生纯铝原料
    China National Standards

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    GB/T 40385-2021 Non-destructive testing of steel tubes—Digital radiographic testing of the weld seam of welded steel tubes for the detection of imperfections
    钢管无损检测 焊接钢管焊缝缺欠的数字射线检测
    China National Standards

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    GB/T 40384-2021 Plastics—Determination of the transient extensional viscosity of polymer melts
    塑料 聚合物熔体瞬态拉伸黏度的测定
    China National Standards

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    GB/T 40383-2021 Hot-rolled twin-roll cast carbon steel sheet and strip of commercial quality
    商品级双辊铸轧热轧碳素钢薄钢板及钢带
    China National Standards

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    GB/T 40382-2021 Recycling materials for wrought aluminium alloys
    再生变形铝合金原料
    China National Standards

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    GB/T 40381-2021 Specification of sapphire plate for laser window
    激光窗口用蓝宝石晶体板状材料规范
    China National Standards

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    GB/T 40380.2-2021 Metallic powders—Determination of apparent density and flow rate at elevated temperatures—Part 2: Determination of flow rate at elevated temperatures
    金属粉末 高温时松装密度和流速的测定 第2部分:高温时流速的测定
    China National Standards

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    GB/T 40431-2021 Guidelines for personal safety restraint in electrical operation place
    电气运行场所的人身安全约束指南
    China National Standards

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    GB/T 40430-2021 Road vehicles—Diagnostic communication over controller area network(DoCAN)—Dictionary
    道路车辆 基于控制器局域网的诊断通信 符号集
    China National Standards

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    GB/T 40429-2021 Taxonomy of driving automation for vehicles
    汽车驾驶自动化分级
    China National Standards

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    GB/T 40428-2021 Electromagnetic compatibility requirements and test methods of conductive charging for electric vehicles
    电动汽车传导充电电磁兼容性要求和试验方法
    China National Standards

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    GB/T 40426.3-2021 Plastics—Decorative solid surfacing materials—Part 3:Determination of properties—Non-sheet solid surfacing material
    塑料制品 装饰性实体面材 第3部分:性能的测定 非板型实体面材
    China National Standards

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    GB/T 40426.2-2021 Plastics—Decorative solid surfacing materials—Part 2: Determination of properties—Sheet solid surfacing material
    塑料制品 装饰性实体面材 第2部分:性能的测定 板型实体面材
    China National Standards

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    GB/T 40426.1-2021 Plastics—Decorative solid surfacing materials—Part 1: Classification and specifications
    塑料制品 装饰性实体面材 第1部分:分类和规范
    China National Standards

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    GB/T 40425.1-2021 Electric vehicle top contact charging system—Part 1: General requirements
    电动客车顶部接触式充电系统 第1部分:通用要求
    China National Standards

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    GB/T 40424-2021 Welding procedure qualification test for tubes to tube-plate joints
    管与管板的焊接工艺评定试验
    China National Standards

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    GB/T 40418-2021 Electronic specialty gas—Fluoromethane
    电子特气 氟甲烷
    China National Standards

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    GB/T 40417-2021 Electronic specialty gas—1,3-Hexafluorobutadiene
    电子特气 六氟丁二烯
    China National Standards

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    GB/T 40416-2021 Technical requirements of gravel aggregate production complete equipment
    砂石骨料生产成套装备技术要求
    China National Standards

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    GB/T 40415-2021 Determination of light transmittance for the photovoltaic glass module used in building
    建筑用光伏玻璃组件透光率测试方法
    China National Standards

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    GB/T 40414-2021 Determination of thickness for floating-floor thermal insulating products
    浮筑地面用绝热制品厚度的测量
    China National Standards

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    GB/T 40413-2021 Drafting rules for common identification codes of emergency logistics
    应急物流公共标识代码编制规则
    China National Standards

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    GB/T 40412-2021 Military and civilian common resource—Data carrier identification requirements
    军民通用资源 数据载体标识要求
    China National Standards

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    GB/T 40411-2021 Packaged units for supplying hot, cooling or chilled water
    模块式空调机房设备
    China National Standards

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    GB/T 40410-2021 Metallic materials—Multiaxial fatigue testing—Axial-torsional strain-controlled method
    金属材料 多轴疲劳试验 轴向-扭转应变控制方法
    China National Standards

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    GB/T 40409-2021 Flame retardant chemical—Tetrabromophthalate diol
    阻燃化学品 四溴苯酐二醇
    China National Standards

    English PDF
    GB/T 40408-2021 Nuclear grade isostatic graphite for high temperature gas-cooled reactor internals
    高温气冷堆堆内构件用核级等静压石墨
    China National Standards

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    GB/T 40407-2021 X-ray powder diffraction analysis method for determining the phases in portland cement clinker
    硅酸盐水泥熟料矿相X射线衍射分析方法
    China National Standards

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    GB/T 40406-2021 Standard test method for static modulus of elasticity and poisson's ratio of carbon materials in compression
    炭素材料压缩静态弹性模量和泊松比测定方法
    China National Standards

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    GB/T 40405-2021 Technical specification of screen windows and doors for building
    建筑用纱门窗技术条件
    China National Standards

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    GB/T 40404-2021 Slag material—Measurement of melting temperature—High temperature metallographic method
    渣类材料 熔化温度的测定 高温金相法
    China National Standards

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    GB/T 40403-2021 Corrosion of metals and alloys—Methodology for determining the resistance of metals to stress corrosion cracking using the four-point bend method
    金属和合金的腐蚀 用四点弯曲法测定金属抗应力腐蚀开裂的方法
    China National Standards

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    GB/T 40402-2021 Pre-insulated composite plastic pipes with polyethylene casing
    聚乙烯外护管预制保温复合塑料管
    China National Standards

    English PDF
    GB/T 40401-2021 Determination of density by volumetric displacement—Skeleton density by gas pycnometry
    骨架密度的测量 气体体积置换法
    China National Standards

    English PDF
    GB/T 40400-2021 Window decoration for building—Test methods of protection from strangulation
    建筑窗饰产品 防勒试验方法
    China National Standards

    English PDF
    GB/T 40399-2021 General technical conditions for precast concrete part of prefabricated construction
    装配式混凝土建筑用预制部品通用技术条件
    China National Standards

    English PDF
    GB/T 40398.2-2021 Test method for C-C composites—Part 2: Flexural properties
    炭-炭复合炭素材料试验方法 第2部分:弯曲性能试验
    China National Standards

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    GB/T 40398.1-2021 Test method for C-C composites—Part 1: Friction and wear property
    炭-炭复合炭素材料试验方法 第1部分:摩擦磨损性能试验
    China National Standards

    English PDF
    GB/T 40397-2021 Household outdoor air dehumidifier
    户式新风除湿机
    China National Standards

    English PDF
    GB/T 40396-2021 Test method for glass transition temperature of polymer matrix composites—Dynamic mechanical analysis(DMA)
    聚合物基复合材料玻璃化转变温度试验方法 动态力学分析法(DMA)
    China National Standards

    English PDF
    GB/T 40395-2021 Determination of ammonium in methanol for industrial use—Ion chromatography
    工业用甲醇中铵离子的测定 离子色谱法
    China National Standards

    English PDF
    GB/T 40394-2021 Determination of trace trimethylamine in methanol for industrial use—Gas chromatography-mass spectrometry
    工业用甲醇中痕量三甲胺含量的测定 气相色谱质谱联用法
    China National Standards

    English PDF
    GB/T 40393-2021 Corrosion of metals and alloys—Accelerated corrosion test for intergranular corrosion susceptibility of austenitic stainless steels
    金属和合金的腐蚀 奥氏体不锈钢晶间腐蚀敏感性加速腐蚀试验方法
    China National Standards

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    GB/T 40392-2021 Detection of Legionella in circulating cooling water
    循环冷却水中军团菌的检测
    China National Standards

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    GB/T 40391-2021 Aluminum matrix composite wafers
    铝基复合圆片
    China National Standards

    English PDF
    GB/T 40390-2021 Evaluation requirements for dedicated outdoor air conditioning equipment
    独立新风空调设备评价要求
    China National Standards

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    GB/T 40389-2021 Sintered metal materials, excluding hardmetals—Measurement of surface roughness
    烧结金属材料(不包括硬质合金) 表面粗糙度的测定
    China National Standards

    English PDF
    GB/T 40372-2021 General technical specifications for disinfectant packaging line
    消毒剂灌装生产线通用技术条件
    China National Standards

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    GB/T 40371-2021 Gas welding equipment—Materials for equipment used in gas welding, cutting and allied processes
    气焊设备 焊接、切割及相关工艺设备用材料
    China National Standards

    English PDF

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