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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. |
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 15972.41-2021 |
Specifications for optical fibre test methods-Part 41:Measurement methods and test procedures for transmisSiOn characteristics-Bandwidth 光纤试验方法规范 第41部分：传输特性的测量方法和试验程序 带宽 |
China National Standards SiO |
 English PDF |
| GB/T 15972.20-2021 |
Specifications for optical fibre test methods-Part 20:Measurement methods and test procedures for dimenSiOns- Fibre geometry 光纤试验方法规范 第20部分：尺寸参数的测量方法和试验程序 光纤几何参数 |
China National Standards SiO |
English PDF |
| GB/T 13297-2021 |
General rules of packaging，marking and quality certification for preciSiOn alloys 精密合金包装、标志和质量证明书的一般规定 |
China National Standards SiO |
English PDF |
| GB/T 9966.16-2021 |
Test methods for natural stone- Part 16:Determination of linear thermal expanSiOn coefficient 天然石材试验方法 第16部分：线性热膨胀系数的测定 |
China National Standards SiO |
English PDF |
| GB/T 6809.12-2021 |
Reciprocating internal combustion engines—Vocabulary of components and systems—Part 12:Exhaust emisSiOn control systems 往复式内燃机 零部件和系统术语 第12部分：排放控制系统 |
China National Standards SiO |
English PDF |
| GB/T 6232-2021 |
Tractors and machinery for agriculture and forestry—Wheel-to-hub fixing dimenSiOns 农林拖拉机和机械 车轮在轮毂上安装尺寸 |
China National Standards SiO |
English PDF |
| GB/T 2877.2-2021 |
Hydraulic two-port slip-in cartridge valves—Part 2: Mounting dimenSiOns 液压二通盖板式插装阀 第2部分：安装连接尺寸 |
China National Standards SiO |
English PDF |
| GB/T 39893-2021 |
Handheld electro-optical low-viSiOn device 手持式电子助视器 |
China National Standards SiO |
English PDF |
| GB/T 39886-2021 |
Hyper-extenSiOn spinal orthoses 脊柱过伸矫形器 |
China National Standards SiO |
English PDF |
| GB/T 39972-2021 |
Technical specification of‘Inteplan’information system for implementation and superviSiOn of spatial planning 国土空间规划“一张图”实施监督信息系统技术规范 |
China National Standards SiO |
English PDF |
| GB/T 39961-2021 |
Ball screw assembly -- DimenSiOn of shaft-end type screw 滚珠丝杠副 支承结构型式尺寸 |
China National Standards SiO |
English PDF |
| GB/T 39960-2021 |
Straight-sided single-action mechanical power presses -- Characteristicsand dimenSiOns 闭式单动机械压力机 参数和尺寸 |
China National Standards SiO |
English PDF |
| GB/T 39955-2021 |
Additive manufacturing -- Materials -- Powders of Nylon 12 and its composites for powder bed fuSiOn 增材制造 材料 粉末床熔融用尼龙12及其复合粉末 |
China National Standards SiO |
English PDF |
| GB/T 39949.3-2021 |
Hydraulic fluid power—Mounting dimenSiOns for accessories of single rod cylinder—Part 3: 16 MPa compact series with bores from 250mm to 500mm 液压传动 单杆缸附件的安装尺寸 第3部分：16 MPa缸径250 mm～500 mm紧凑型系列 |
China National Standards SiO |
English PDF |
| GB/T 39949.2-2021 |
Hydraulic fluid power—Mounting dimenSiOns for accessories of single rod cylinder—Part 2:16 MPa compact series with bores from 25 mm to 220 mm 液压传动 单杆缸附件的安装尺寸 第2部分：16MPa缸径25mm～220mm紧凑型系列 |
China National Standards SiO |
English PDF |
| GB/T 39949.1-2021 |
Hydraulic fluid power—Mounting dimenSiOns for accessories of single rod cylinder—Part 1:16 MPa medium and 25 MPa series 液压传动 单杆缸附件的安装尺寸 第1部分：16MPa中型系列和25MPa系列 |
China National Standards SiO |
English PDF |
| GB/T 39899-2021 |
The technical specifications for remanufactured automotive components—Automatic transmisSiOn 汽车零部件再制造产品技术规范 自动变速器 |
China National Standards SiO |
English PDF |
| GB/T 39867-2021 |
Bismuth germanate scintillation crystal for positron emisSiOn tomography 正电子发射断层扫描仪用锗酸铋闪烁晶体 |
China National Standards SiO |
English PDF |
| GB/T 39833-2021 |
Test method for coal combustion characteristics—One-dimenSiOnal furnaces method 煤的燃烧特性测定方法 一维炉法 |
China National Standards SiO |
English PDF |
| GB/T 39831-2021 |
Hydraulic fluid power—Four-port modular stack valves and four-port directional control valves, sizes 02, 03, 05, 07, 08 and 10—Clamping dimenSiOns 液压传动 规格02、03、05、07、08和10的四油口叠加阀和方向控制阀 夹紧尺寸 |
China National Standards SiO |
English PDF |
| GB/T 39799-2021 |
DimenSiOn,shape,weight and tolerances for titanium and titanium alloy bars and wires 钛及钛合金棒材和丝材尺寸、外形、重量及允许偏差 |
China National Standards SiO |
English PDF |
| GB/T 39797-2021 |
Test method for surface tenSiOn of glass melt -- Sessile drop method 玻璃熔体表面张力试验方法 座滴法 |
China National Standards SiO |
English PDF |
| GB/T 39744-2021 |
General requirements of mechanical product electronic manual based on three-dimenSiOnal model 基于三维模型的机械产品电子手册编制通用要求 |
China National Standards SiO |
English PDF |
| GB/T 39743-2021 |
Plain bearings—Thermoplastic bushes—DimenSiOns and tolerance 滑动轴承 热塑性塑料轴套 尺寸与公差 |
China National Standards SiO |
English PDF |
| GB/T 39600-2021 |
Formaldehyde emisSiOn grading for wood-based panel and finishing products 人造板及其制品甲醛释放量分级 |
China National Standards SiO |
English PDF |
| GB/T 39598-2021 |
A guide to the limited quantity in indoor loading for wood-based panel based on its ultimate formaldehyde emisSiOn 基于极限甲醛释放量的人造板室内承载限量指南 |
China National Standards SiO |
English PDF |
| GB/T 28267.1-2021 |
Steel cord conveyor belts—Part 1:Design,dimenSiOns and mechanical requirements for conveyor belts for general use 钢丝绳芯输送带 第1部分：普通用途输送带的设计、尺寸和机械要求 |
China National Standards SiO |
English PDF |
| GB/T 18329.4-2021 |
Plain bearings—Metallic multilayer plain bearings—Part 4:Non-destructive ultrasonic transmisSiOn testing of bond of thickness greater than or equal to 0.3 mm 滑动轴承 多层金属滑动轴承 第4部分: 合金厚度≥0.3mm的结合质量超声穿透无损检测 |
China National Standards SiO |
English PDF |
| GB/T 14352.19-2021 |
Methods for chemical analysis of tungsten ores and molybdenum ores -- Part 19: Determination of bismuth, cadmium, cobalt, copper, iron, lithium, nickel, phosphorus, lead, strontium, vanadium and zinc content -- Inductive-coupled plasma atomic emisSiOn spe 钨矿石、钼矿石化学分析方法 第19部分：铋、镉、钴、铜、铁、锂、镍、磷、铅、锶、钒和锌量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards SiO |
English PDF |
| GB/T 7092-2021 |
Outline dimenSiOns of semiconductor integrated circuits 半导体集成电路外形尺寸 |
China National Standards SiO |
English PDF |
| GB/T 5095.2304-2021 |
Electromechanical components for electronic equipment—Basic testing procedures and measuring methods—Part 23-4: Screening and filtering tests—Test 23d: TransmisSiOn line reflections in the time domain 电子设备用机电元件 基本试验规程及测量方法 第23-4部分：屏蔽和滤波试验 试验23d：时域内传输线的反射 |
China National Standards SiO |
English PDF |
| GB/T 4892-2021 |
DimenSiOns of rigid rectangular transport packages 硬质直方体运输包装尺寸系列 |
China National Standards SiO |
English PDF |
| GB/T 1406.3-2021 |
Types and dimenSiOns of lamp caps—Part 3：Prefocus caps 灯头的型式和尺寸 第3部分：预聚焦式灯头 |
China National Standards SiO |
English PDF |
| GB/T 9254.1-2021 |
Information technology equipment, multimedia equipment and receivers -- Electromagnetic compatibility -- Part 1: EmisSiOn requirements 信息技术设备、多媒体设备和接收机 电磁兼容 第1部分：发射要求 |
China National Standards SiO |
English PDF |
| GB/T 283-2021 |
Rolling bearings—Cylindrical roller bearings—Boundary dimenSiOns 滚动轴承 圆柱滚子轴承 外形尺寸 |
China National Standards SiO |
English PDF |
| GB/T 41112-2021 |
Solid wire electrodes, solid wires and rods for fuSiOn welding of magnesium and magnesium alloys 镁及镁合金焊丝 |
China National Standards SiO |
English PDF |
| GB/T 38265.15-2021 |
Test methods for soft soldering fluxes—Part 15: Copper corroSiOn test 软钎剂试验方法 第15部分：铜腐蚀试验 |
China National Standards SiO |
English PDF |
| GB/T 41176-2021 |
ProfesSiOnal sportswear -- Ski and snowboard wear 专业运动服装? 滑雪服 |
China National Standards SiO |
English PDF |
| GB/T 6445-2021 |
Rolling bearings—Needle roller bearing track rollers—Boundary dimenSiOns, geometrical product specifications (GPS) and tolerance values 滚动轴承 滚轮滚针轴承 外形尺寸、产品几何技术规范（GPS）和公差值 |
China National Standards SiO |
English PDF |
| GB/T 24807-2021 |
Electromagnetic compatibility for lifts, escalators and moving walks—EmisSiOn 电梯、自动扶梯和自动人行道的电磁兼容 发射 |
China National Standards SiO |
English PDF |
| GB/T 41174-2021 |
ProfesSiOnal sportswear -- Track and field garment 专业运动服装? 田径服 |
China National Standards SiO |
English PDF |
| GB/T 1927.12-2021 |
Test methods for physical and mechanical properties of small clear wood specimens—Part 12:Determination of strength in compresSiOn perpendicular to grain 无疵小试样木材物理力学性质试验方法 第12部分：横纹抗压强度测定 |
China National Standards SiO |
English PDF |
| GB/T 41154-2021 |
Metallic materials—Multiaxial fatigue testing—Axial-torSiOnal strain-controlled thermo-mechanical fatigue testing method 金属材料 多轴疲劳试验 轴向-扭转应变控制热机械疲劳试验方法 |
China National Standards SiO |
English PDF |
| GB/T 21414-2021 |
Railway applications—Rolling stock—Protective proviSiOns against electrical hazards 轨道交通 机车车辆 电气隐患防护的规定 |
China National Standards SiO |
English PDF |
| GB/T 21437.3-2021 |
Road vehicles—Test method of electrical disturbances from conduction and coupling—Part 3: Electrical transient transmisSiOn by capacitive and inductive coupling via lines other than supply lines 道路车辆 电气/电子部件对传导和耦合引起的电骚扰试验方法 第3部分：对耦合到非电源线电瞬态的抗扰性 |
China National Standards SiO |
English PDF |
| GB/T 40675.3-2021 |
Noise suppresSiOn sheet for digital devices and equipment—Part 3: Characterization of parameters of noise suppression sheet 数字器件和设备用噪声抑制片 第3部分：噪声抑制片的参数特性 |
China National Standards SiO |
English PDF |
| GB/T 20882.4-2021 |
Rolling bearings—Needle roller bearing track rollers—Boundary dimenSiOns, geometrical product specifications (GPS) and tolerance values 淀粉糖质量要求 第4部分：果葡糖浆 |
China National Standards SiO |
English PDF |
| GB/T 41175-2021 |
Assistive products for persons with viSiOn impairments and persons with vision and hearing impairments -- Acoustic and tactile signals for pedestrian traffic lights 视力障碍者和视听障碍者用辅助器具? 行人交通信号灯的声音和触觉信号 |
China National Standards SiO |
English PDF |
| GB 9706.224-2021 |
Medical electrical equipment—Part 2-24: Particular requirements for the basic safety and essential performance of infuSiOn pumps and controllers 医用电气设备 第2-24部分：输液泵和输液控制器的基本安全和基本性能专用要求 |
China National Standards SiO |
English PDF |
| GB/T 1037-2021 |
Test method for water vapor transmisSiOn of plastic film and sheet—Desiccant method and water method 塑料薄膜与薄片水蒸气透过性能测定 杯式增重与减重法 |
China National Standards SiO |
English PDF |
| GB/T 40911.3-2021 |
Plastics—Poly(methyl methacrylate) sheets—Types,dimenSiOns and characteristics—Part 3:Continuous cast sheets 塑料制品 聚甲基丙烯酸甲酯板材 类型、尺寸和特性 第3部分：连续浇铸板材 |
China National Standards SiO |
English PDF |
| GB/T 40911.2-2021 |
Plastics—Poly(methyl methacrylate)sheets—Types,dimenSiOns and characteristics—Part 2:Extruded sheets 塑料制品 聚甲基丙烯酸甲酯板材 类型、尺寸和特性 第2部分：挤出板材 |
China National Standards SiO |
English PDF |
| GB/T 40915-2021 |
Determination of SiO2,Al2O3,Fe2O3,K2O,Na2O,CaO,MgO content of soda-lime-silica glass by X-ray fluorescence spectrometric method X射线荧光光谱法测定钠钙硅玻璃中SiO2、Al2O3、Fe2O3、K2O、Na2O、CaO、MgO含量 |
China National Standards SiO |
English PDF |
| GB/T 40884-2021 |
Small craft—Electric propulSiOn system 小艇 电力推进系统 |
China National Standards SiO |
English PDF |
| GB/T 40675.1-2021 |
Noise suppresSiOn sheet for digital devices and equipment—Part 1:Definitions and general properties 数字器件和设备用噪声抑制片 第1部分：定义和一般性能 |
China National Standards SiO |
English PDF |
| GB/T 40675.2-2021 |
Noise suppresSiOn sheet for digital devices and equipment—Part 2:Measuring methods 数字器件和设备用噪声抑制片 第2部分：测量方法 |
China National Standards SiO |
English PDF |
| GB/T 4214.10-2021 |
Test method for noise of household and similar electrical appliances—Procedure for determining and verifying declared noise emisSiOn values 家用和类似用途电器噪声测试方法 确定和检验噪声明示值的程序 |
China National Standards SiO |
English PDF |
| GB/T 40987.3-2021 |
Public library profesSiOnal work specifications—Part 3：County public library 公共图书馆业务规范 第3部分：县级公共图书馆 |
China National Standards SiO |
English PDF |
| GB/T 40987.2-2021 |
Public library profesSiOnal work specifications—Part 2： Municipal public library 公共图书馆业务规范 第2部分：市级公共图书馆 |
China National Standards SiO |
English PDF |
| GB/T 40987.1-2021 |
Public library profesSiOnal work specifications—Part 1： Provincial public library 公共图书馆业务规范 第1部分：省级公共图书馆 |
China National Standards SiO |
English PDF |
| GB/T 20275-2021 |
Information security technology -- Technical requirements and testing and evaluation approaches for network-based intruSiOn detection system 信息安全技术 网络入侵检测系统技术要求和测试评价方法 |
China National Standards SiO |
English PDF |
| GB/T 40748-2021 |
Quality grading of pasSiOnfruit 百香果质量分级 |
China National Standards SiO |
English PDF |
| GB/T 19290.7-2021 |
Modular order for the development of mechanical structures for electronic equipment practices—Part 2-5:Sectional specification—Interface co-ordination dimenSiOns for the 25 mm equipment practice—Cabine tinterface dimensions for miscellaneous equipment 发展中的电子设备构体机械结构模数序列 第2-5部分：分规范 25 mm设备构体的接口协调尺寸 各种设备用机柜接口尺寸 |
China National Standards SiO |
English PDF |
| GB/T 30314-2021 |
Rubber- or plastics-coated fabrics—Determination of abraSiOn resistance—Taber abrader 橡胶或塑料涂覆织物 耐磨性的测定 泰伯法 |
China National Standards SiO |
English PDF |
| GB/T 19334-2021 |
DimenSiOns of low-voltage switchgear and controlgear—Standardized mounting on rails for mechanical support of switchgear,controlgear and accessories 低压开关设备和控制设备的尺寸 在开关设备和控制设备及其附件中作机械支承的标准安装轨 |
China National Standards SiO |
English PDF |
| GB/T 40742.5-2021 |
Geometrical product specifications (GPS)—Geometrical preciSiOnverification—Part 5:Estimation of uncertainty of measurement for geometrical characteristics verification 产品几何技术规范（GPS） 几何精度的检测与验证 第5部分:几何特征检测与验证中测量不确定度的评估 |
China National Standards SiO |
English PDF |
| GB/T 26548.12-2021 |
Hand-held portable power tools—Test methods for evaluation of vibration emisSiOn—Part 12：Die grinders 手持便携式动力工具 振动试验方法 第12部分：模具砂轮机 |
China National Standards SiO |
English PDF |
| GB/T 26548.8-2021 |
Hand-held portable power tools -- Test methods for evaluation of vibration emisSiOn -- Part 8: Saws, polishing and filing machines with reciprocating action and small saws with oscillating or rotating action 手持便携式动力工具? 振动试验方法? 第8部分：往复式锯、抛光机和锉刀以及摆式或回转式锯 |
China National Standards SiO |
English PDF |
| GB/T 40366-2021 |
Guidelines for the incluSiOn of graphical symbols for use on electrical equipment in IEC publications 电气设备用图形符号列入IEC出版物的导则 |
China National Standards SiO |
English PDF |
| GB/T 40860-2021 |
Analysis requirements for design extenSiOn conditions of pressurized water reactor nuclear power plants 压水堆核电厂设计扩展工况分析要求 |
China National Standards SiO |
English PDF |
| GB/T 15055-2021 |
Permissible stamping variations in dimenSiOns without tolerance indication 冲压件未注公差尺寸极限偏差 |
China National Standards SiO |
English PDF |
| GB/T 30845.2-2021 |
Plugs, socket-outlets and ship couplers for high-voltage shore connection systems (HVSC-systems)—Part 2: DimenSiOnal compatibility and interchangeability requirements for accessories to be used by various types of ships 高压岸电连接系统(HVSC系统)用插头、插座和船用耦合器 第2部分：不同类型的船舶用附件的尺寸兼容性和互换性要求 |
China National Standards SiO |
English PDF |
| GB/T 26703-2021 |
Determination of abraSiOn resistance for top piece of leather shoes 皮鞋跟面耐磨性能试验方法 |
China National Standards SiO |
English PDF |
| GB/T 40606-2021 |
Technical specifications for online security analysis and auxiliary deciSiOn-making of power grid 电网在线安全分析与控制辅助决策技术规范 |
China National Standards SiO |
English PDF |
| 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 |
China National Standards SiO |
English PDF |
| GB/T 40580-2021 |
Technical guide for modeling HVDC transmisSiOn systems in electromechanical transient simulations 高压直流输电系统机电暂态仿真建模技术导则 |
China National Standards SiO |
English PDF |
| GB/T 6683.1-2021 |
Petroleum and related products—PreciSiOn of measurement methods and results—Part 1: Determination of precision data in relation to methods of test 石油及相关产品 测量方法与结果精密度 第1部分：试验方法精密度数据的确定 |
China National Standards SiO |
English PDF |
| GB/T 40659-2021 |
Intelligent manufacturing—Online detection system based on machine viSiOn—General requirements 智能制造 机器视觉在线检测系统 通用要求 |
China National Standards SiO |
English PDF |
| GB/T 40797-2021 |
Rubber, vulcanized or thermoplastic -- Determination of resistance to abraSiOn -- Driven, vertical abrasive disc method 硫化橡胶或热塑性橡胶 耐磨性能的测定 垂直驱动磨盘法 |
China National Standards SiO |
English PDF |
| GB/T 1232.3-2021 |
Rubber,unvulcanized—Determinations using a shearing-disc viscometer—Part 3:Determination of the Delta Mooney value for non-pigmented,oil-extended emulSiOn-polymerized SBR 未硫化橡胶 用圆盘剪切黏度计进行测定 第3部分：无填料的充油乳液聚合型苯乙烯-丁二烯橡胶Delta门尼值的测定 |
China National Standards SiO |
English PDF |
| GB/T 40742.4-2021 |
Geometrical product specifications (GPS)—Geometrical preciSiOn verification—Part 4：Evaluation of dimension and geometrical error，discriminant pattern of minimum zone 产品几何技术规范（GPS） 几何精度的检测与验证 第4部分：尺寸和几何误差评定、最小区域的判别模式 |
China National Standards SiO |
English PDF |
| GB/T 40742.3-2021 |
Geometrical product specifications (GPS)—Geometrical preciSiOn verification—Part 3:Functional gauges and fixtures—Verification when applying maximum material requirements and minimum material requirements 产品几何技术规范（GPS） 几何精度的检测与验证 第3部分：功能量规与夹具 应用最大实体要求和最小实体要求时的检测与验证 |
China National Standards SiO |
English PDF |
| GB/T 40742.2-2021 |
Geometrical product specifications (GPS)—Geometrical preciSiOn verification—Part 2：Verification of form characteristics, orientation characteristics, position characteristics, run-out characteristics and profile characteristics 产品几何技术规范（GPS） 几何精度的检测与验证 第2部分：形状、方向、位置、跳动和轮廓度特征的检测与验证 |
China National Standards SiO |
English PDF |
| GB/T 40742.1-2021 |
Geometrical product specifications (GPS)—Geometrical preciSiOn verification—Part 1:Basic concept and measurement—Symbol,terminology,measuring conditions and procedures 产品几何技术规范（GPS） 几何精度的检测与验证 第1部分：基本概念和测量基础 符号、术语、测量条件和程序 |
China National Standards SiO |
English PDF |
| GB/T 40731-2021 |
Method of test and evaluation for lost motion of preciSiOn reducer 精密减速器回差测试与评价方法 |
China National Standards SiO |
English PDF |
| GB/T 26548.11-2021 |
Hand-held portable power tools—Test methods for evaluation of vibration emisSiOn—Part 11:Stone hammers 手持便携式动力工具 振动试验方法 第11部分：石锤 |
China National Standards SiO |
English PDF |
| GB/T 26548.10-2021 |
Hand-held portable power tools -- Test methods for evaluation of vibration emisSiOn -- Part 10: Percussive drills, hammers and breakers 手持便携式动力工具? 振动试验方法? 第10部分：冲击式凿岩机、锤和破碎器 |
China National Standards SiO |
English PDF |
| GB/T 40566-2021 |
Granular polysilicon produced by fluidized bed method—Determination of hydrogen—Pulse heating inert gas fuSiOn infrared absorption method 流化床法颗粒硅 氢含量的测定 脉冲加热惰性气体熔融红外吸收法 |
China National Standards SiO |
English PDF |
| GB/T 40561-2021 |
Photovoltaic silicon material—Determination of oxygen—Pulse heating inert gas fuSiOn infrared absorption method 光伏硅材料 氧含量的测定 脉冲加热惰性气体熔融红外吸收法 |
China National Standards SiO |
English PDF |
| GB/T 40870-2021 |
Gas analysis—ConverSiOn of gas mixture composition data 气体分析 混合气体组成数据的换算 |
China National Standards SiO |
English PDF |
| GB/T 39851.3-2021 |
Road vehicles—Diagnostic communication over Controller Area Network (DoCAN)—Part 3:Requirements for emisSiOns-related systems 道路车辆 基于控制器局域网的诊断通信 第3部分：排放相关系统的需求 |
China National Standards SiO |
English PDF |
| GB/T 15972.49-2021 |
Specifications for optical fibre test methods—Part 49: Measurement methods and test procedures for transmisSiOn characteristics—Differential mode delay 光纤试验方法规范 第49部分：传输特性的测量方法和试验程序 微分模时延 |
China National Standards SiO |
English PDF |
| GB/T 40865-2021 |
Terminology for voltage source converter based high voltage direct current(VSC-HVDC) transmisSiOn 柔性直流输电术语 |
China National Standards SiO |
English PDF |
| GB/T 40862-2021 |
Guide for reliability evaluation indices of operational transmisSiOnand transformation installation 输变电设施运行可靠性评价指标导则 |
China National Standards SiO |
English PDF |
| GB/T 40864-2021 |
Technical requirements for relaying protection of flexible alternating current transmisSiOn equipment connecting to the system 柔性交流输电设备接入电网继电保护技术要求 |
China National Standards SiO |
English PDF |
| 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 SiO |
English PDF |
| 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 SiO |
English PDF |
| 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 SiO |
English PDF |
| 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 SiO |
English PDF |
| 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 SiO |
English PDF |
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