2021 year China issued GB standards list


	GB/T 3778-2021 Carbon black for use in rubber products 橡胶用炭黑
	GB/T 9578-2021 Industry reference carbon black 4# 工业参比炭黑4#
	GB/T 40867-2021 Technical specifications for unified power flow controller 统一潮流控制器技术规范
	GB/T 40810.1-2021 Geometrical product specifications (GPS)—Online measurement in process—Part 1:Online verification of geometric features (size and surface texture) 产品几何技术规范（GPS）生产过程在线测量第1部分：几何特征（尺寸、表面结构）的在线检测与验证
	GB/T 40794-2021 Measurement method of irreversible magnetic flux loss due to high temperature of rare earth permanent magnet 稀土永磁材料高温磁通不可逆损失检测方法
	GB/T 40586-2021 Technical requirements of grid-related protection of grid-connected power 并网电源涉网保护技术要求
	GB/T 40616-2021 Technical requirements for simulation test of control system functions of the rural photovoltaic power station cluster 村镇光伏发电站集群控制系统仿真测试技术要求
	GB/T 21969-2021 YGP series variable-frequency adjustable-speed three-phase induction motors for roll table application—Technical specification YGP系列辊道用变频调速三相异步电动机技术条件
	GB/T 29108-2021 Road traffic information service -- Terminology 道路交通信息服务术语
	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
	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
	GB/T 40985-2021 Digital rights management -- Identification and description of copyright resources 数字版权保护版权资源标识与描述
	GB/T 40989-2021 Press and publication -- Knowledge services -- Knowledge object identifier(KOI) 新闻出版知识服务知识对象标识符(KOI)
	GB/T 18113-2021 High temperature lanthanum chromite electric heating module 铬酸镧高温电热元件
	GB/T 40732-2021 Non-destructive testing of welds—Ultrasonic testing—Testing of welds in austenitic steels and nickel-based alloys 焊缝无损检测超声检测奥氏体钢和镍基合金焊缝检测
	GB 15359-2021 Maritime light vessels and large navigational buoys system, China 中国海区灯船和大型助航浮标制式
	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
	GB/T 40777-2021 Requirements for automatic reclosing devices (ARDs) for circuit-breakers,RCBOs and RCCBs for household and similar uses 家用及类似用途断路器、RCCB、RCBO自动重合闸电器（ARD）的一般要求
	GB/T 41008-2021 Biodegradable drinking straws 生物降解饮用吸管
	GB/T 16895.10-2021 Low-voltage electrical installations -- Part 4-44: Protection for safety -- Protection against voltage disturbances and electromagnetic disturbances 低压电气装置第4-44部分：安全防护电压骚扰和电磁骚扰防护

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