2021 year China issued GB standards list


	GB/T 40023-2021 Non-destructive testing instruments - Ultrasonic time-of-flight diffraction instrument - Technical requirements 无损检测仪器超声衍射声时检测仪技术要求
	GB/T 40094.1-2021 Electronic commerce data transaction-Part 1:Criteria 电子商务数据交易第1部分：准则
	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
	GB/T 40068-2021 Electrofusion welding sleeve(tape) for thermal insulation pipeline 保温管道用电热熔套（带）
	GB/T 40007-2021 Nanotechnology—Contacting methods for measuring the resistivity of nanomaterials—General rules 纳米技术纳米材料电阻率的接触式测量方法通则
	GB/T 39903-2021 Work breakdown structures for project and programme management 项目工作分解结构
	GB/T 39910-2021 Specification for classification of standard literature 标准文献分类规则
	GB/T 19346.3-2021 Methods of measurement of amorphous and nanocrystalline alloys-Part 3:AC magnetic properties of Fe-based amorphous strip using a single sheet specimen 非晶纳米晶合金测试方法第3部分：铁基非晶单片试样交流磁性能
	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
	GB/T 15972.34-2021 Specifications for optical fibre test methods—Part 34:Measurement methods and test procedures for mechanical characteristics—Fibre curl 光纤试验方法规范第34部分：机械性能的测量方法和试验程序光纤翘曲
	GB/T 39929-2021 Footwear manufacturing machines—Shoe and leather presses—Safety requirements 制鞋机械压合成型机安全要求
	GB/T 9441-2021 Metallographic test method for spheroidal graphite cast iron 球墨铸铁金相检验
	GB/T 3883.302-2021 Safety of motor-operated hand-held, transportable and garden tools - Part 302: Particular requirements for transportable table saws 手持式、可移式电动工具和园林工具的安全第302部分：可移式台锯的专用要求
	GB/T 14909-2021 Technical guidelines for exergy analysis in energy systems 能量系统？分析技术导则
	GB/T 31838.5-2021 Solid insulating materials - Dielectric and resistive properties - Part 5: Resistive properties(DC method) - Volume resistance and volume resistivity of impregnation and coating materials 固体绝缘材料介电和电阻特性第5部分：电阻特性(DC方法) 浸渍和涂层材料的体积电阻和体积电阻率
	GB/T 18216.4-2021 Electrical safety in low voltage distribution systems up to 1 000 V a. c and 1 500 V d. c - Equipment for testing, measuring or monitoring of protective measures - Part 4: Resistance of earth connection and equipotential bonding 交流1000V和直流1500V及以下低压配电系统电气安全防护措施的试验、测量或监控设备第4部分：接地电阻和等电位接地电阻
	GB/T 39953-2021 5-axis simultaneous machining center—Testing of the accuracy for RTCP 五轴联动加工中心 RTCP精度检验
	GB/T 9790-2021 Metallic materials—Vickers and Knoop microhardness tests of metallic and other inorganic coatings 金属材料金属及其他无机覆盖层的维氏和努氏显微硬度试验
	GB/T 23902-2021 Non-destructive testing - Ultrasonic testing - Time-of-flight diffraction technique as a method for detection and sizing of discontinuities 无损检测超声检测超声衍射声时技术检测和评价方法
	GB/T 23537-2021 Superabrasive products - Grinding wheels and mounted points with diamond or cubic boron nitride - Limit deviations and run-out tolerances 超硬磨料制品金刚石或立方氮化硼砂轮和磨头极限偏差和圆跳动公差

Find out:2938Items | To Page of: First -Previous-Next -Last | [20] [21] [22] [23] [24] [25] [26]