2021 year China issued GB standards list


	GB/T 41136-2021 Resistance welding equipment -- Transformers -- Integrated transformer-rectifier units for welding guns operating at 1 000 Hz 电阻焊设备变压器一体式焊钳用内置整流器的1000Hz变压器
	GB/T 24524-2021 Metallic materials—Sheet and strip—Hole expanding test 金属材料薄板和薄带扩孔试验方法
	GB/T 3799-2021 Technical requirements for completion and acceptance of vehicle engines overhaul 汽车发动机大修竣工出厂技术条件
	GB/T 20724-2021 Microbeam analysis—Method of thickness measurement for thin crystals by convergent beam electron diffraction 微束分析薄晶体厚度的会聚束电子衍射测定方法
	GB/T 20899.6-2021 Methods for chemical analysis of gold ores—Part 6: Determination of zinc content 金矿石化学分析方法第6部分：锌量的测定
	GB/T 41106.6-2021 Large-scale amusement devices -- Inspection, maintenance and repair -- Part 6: Sort of virtual experience rides 大型游乐设施检查、维护保养与修理第6部分：虚拟体验类
	GB/T 26519.2-2021 Persulfate for industrial use—Part 2:Potassium persulfate for industrial use 工业过硫酸盐第2部分：工业过硫酸钾
	GB/T 40255-2021 Code of diagnosis for infection with hepatopancreatic parvovirus of penaeid shrimp—PCR method 对虾肝胰腺细小病毒病诊断规程 PCR检测法
	GB/T 41106.4-2021 Large-scale amusement devices -- Inspection, maintenance and repair -- Part 4: Sort of lifting rides 大型游乐设施检查、维护保养与修理第4部分：升降类
	GB 19578-2021 Fuel consumption limits for passenger cars 乘用车燃料消耗量限值
	GB/T 25684.12-2021 Earth-moving machinery—Safety—Part 12: Requirements for cable excavators 土方机械安全第12部分：机械挖掘机的要求
	GB/T 25915.10-2021 Cleanrooms and associated controlled environments—Part 10: Classification of surface cleanliness by chemical concentration 洁净室及相关受控环境第10部分：按化学物浓度划分表面洁净度等级
	GB/T 10762-2021 Method of mass measurements for industrial and mining electric locomotive 工矿电机车质量测量方法
	GB/T 41106.2-2021 Large-scale amusement devices -- Inspection, maintenance and repair -- Part 2: Sort of track rides 大型游乐设施检查、维护保养与修理第2部分：轨道类
	GB/T 41122-2021 Requirements for lifts used to assist in building evacuation 用于辅助建筑物人员疏散的电梯要求
	GB/T 25915.2-2021 Cleanrooms and associated controlled environments—Part 2: Monitoring to provide evidence of cleanroom performance related to air cleanliness by particle concentration 洁净室及相关受控环境第2部分：洁净室空气粒子浓度的监测
	GB 39726-2020 Emission standard of air pollutants for foundry industry 铸造工业大气污染物排放标准
	GB/T 41178-2021 Prosthetics and orthotics—Soft orthoses—Uses,functions,classification and description 假肢和矫形器软性矫形器用途、功能、分类和描述
	GB/T 40344.2-2021 Vacuum technology—Standard methods for measuring vacuum-pump performance— Part 2：Positive displacement vacuum pumps 真空技术真空泵性能测量标准方法第2部分：容积真空泵
	GB/T 40228-2021 Guide for the control of some chemicals in apparel accessories and components 服装配件和组件中部分化学物质控制指南

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