2021 year China issued GB standards list


	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)
	GB/T 40225-2021 Determination of actin antibody—Western blotting method 肌动蛋白抗体的检测免疫印迹法
	GB/T 6730.25-2021 Iron ores—Determination of total rare earth contents—Oxalate gravimetric method 铁矿石稀土总量的测定草酸盐重量法
	GB/T 40346-2021 Equipment for crop protection—Method for measurement of potential spray drift from horizontal boom sprayers by the use of a test bench 植物保护机械水平喷杆喷雾机潜在喷雾漂移试验台测量方法
	GB/T 40222-2021 Guide for smart hydropower plant 智能水电厂技术导则
	GB/T 41077-2021 Thermal insulating products for building applications—Limit value of hexabromocyclododecanes 建筑用绝热制品六溴环十二烷的限值
	GB/T 40139-2021 Measuring method for surface areas of materials—Three dimensional area measurement base on hyperspectral imaging 材料表面积的测量　高光谱成像三维面积测量法
	GB/T 40362-2021 Powered toothbrushes—General requirements and test methods 电动牙刷一般要求和检测方法
	GB/T 41043-2021 Coordinative development effectiveness evaluation indicator and method of coal and coalbed methane 煤与煤层气协调开发效果评价指标及计算方法
	GB/T 24685-2021 Puddling and fertilizing land leveler for paddy field 水田平地施肥搅浆机
	GB/T 3098.26-2021 Mechanical properties of fasteners—Flat washers 紧固件机械性能平垫圈
	GB/T 41116-2021 Non-destructive testing of welds—Time-of-flight diffraction technique (TOFD)—Acceptance levels 焊缝无损检测衍射时差技术（TOFD）验收等级
	GB/T 13291-2021 Butadiene for industrial use 工业用丁二烯
	GB/T 12241-2021 Safety valves—General requirements 安全阀一般要求
	GB/T 1456-2021 Test method for flexural properties of sandwich constructions 夹层结构弯曲性能试验方法
	GB/T 22565.1-2021 Metallic materials -- Sheet and strip -- Method for spring back evaluation -- Part 1: Stretch bending 金属材料薄板和薄带回弹性能评估方法第1部分：拉弯法
	GB/T 4657-2021 Codes for the central party and state organs people’s communities and the other state organizations 中央党政机关、人民团体及其他机构代码
	GB/T 21938-2021 Earth-moving machinery─Hydraulic excavator and backhoe loader lowering control device─Requirements and tests 土方机械液压挖掘机和挖掘装载机下降控制装置要求和试验
	GB/T 8563.1-2021 Classification and codes for information of reward and disciplinary action -- Part 1: Codes of medal, honorary title and reward 奖励、纪律处分信息分类与代码第1部分：勋章、荣誉称号和表彰奖励代码
	GB/T 41212-2021 Nanotechnologies -- 5-(and 6)-Chloromethyl-2', 7' Dichloro-dihydrofluorescein diacetate (CM-H2DCF-DA) assay for evaluating nanoparticle-induced intracellular reactive oxygen species(ROS) production in RAW 264.7 macrophage cell line 纳米技术荧光素二乙酸酯法检测纳米颗粒诱导巨噬细胞产生的活性氧

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