2021 year China issued GB standards list


	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 13976-2021 Radioactive source term of pressurized water reactor nuclear power plant for operation states 压水堆核电厂运行状态下的放射性源项
	GB/T 30887-2021 Technical guide for water system integration and optimization of industrial enterprises 工业企业水系统集成优化技术指南
	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 16983-2021 Chemical reagent -- Dichloromethane 化学试剂二氯甲烷
	GB/T 17743-2021 Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment 电气照明和类似设备的无线电骚扰特性的限值和测量方法
	GB/T 20303.5-2021 Cranes—Cabins and control stations—Part 5: Overhead travelling and portal bridge cranes 起重机司机室和控制站第5 部分:桥式和门式起重机
	GB/T 22173-2021 Oxadiazon technical material 噁草酮原药
	GB/T 41107.2-2021 Destructive tests on welds in metallic materials -- Hot cracking tests for weldments -- Arc welding processes -- Part 2: Self-restraint tests 金属材料焊缝破坏性试验焊件的热裂纹试验弧焊方法第2部分：自拘束试验
	GB/T 3792-2021 Information and documentation—Resource description 信息与文献资源描述
	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 3098.26-2021 Mechanical properties of fasteners—Flat washers 紧固件机械性能平垫圈
	GB/T 15972.31-2021 Specifications for optical fibre test methods—Part 31: Measurement methods and test procedures for mechanical characteristics—Tensile strength 光纤试验方法规范第31部分：机械性能的测量方法和试验程序抗张强度
	GB/T 5267.2-2021 Fasteners—Non-electrolytically applied zinc flake coatings 紧固件非电解锌片涂层
	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 21419-2021 Transformers, power supplies, reactors and similar products—EMC requirements 变压器、电源装置、电抗器及其类似产品电磁兼容（EMC）要求
	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 41074-2021 Microbeam analysis -- Method of specimen preparation for analysis of general powders using WDS and EDS 微束分析用于波谱和能谱分析的粉末试样制备方法
	GB/T 21636-2021 Microbeam analysis—Electron probe microanalysis (EPMA)—Vocabulary 微束分析电子探针显微分析（EPMA）术语
	GB/T 15901-2021 Chemical reagent—Copper（Ⅱ） chloride dihydrate 化学试剂二水合氯化铜（氯化铜）

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