2021 year China issued GB standards list


	GB/T 786.1-2021 Fluid power systems and components—Graphical symbols and circuit diagrams—Part 1:Graphical symbols 流体传动系统及元件图形符号和回路图第1部分：图形符号
	GB/T 4214.12-2021 Test method for noise of household and similar electrical appliances—Particular requirements for fan heaters 家用和类似用途电器噪声测试方法风扇式加热器的特殊要求
	GB/T 1551-2021 Test method for measuring resistivity of monocrystal silicon—In-line four-point probe and direct current two-point probe method 硅单晶电阻率的测定直排四探针法和直流两探针法
	GB/T 2076-2021 Indexable inserts for cutting tools—Designation 切削刀具用可转位刀片型号表示规则
	GB/T 6546-2021 Corrugated fibreboard—Determination of edgewise crush resistance 瓦楞纸板边压强度的测定
	GB/T 2423.33-2021 Environmental testing - Part 2: Test methods - Test Kca: High concentration sulfur dioxid 环境试验第2部分：试验方法试验Kca：高浓度二氧化硫试验
	GB/T 12604.7-2021 Non-destructive testing - Terminology - Leak testing 无损检测术语泄漏检测
	GB/T 2424.5-2021 Environmental testing—Part 3:Supporting documentation and guidance—Confirmation of the performance of temperature chambers 环境试验第3部分：支持文件及导则温度试验箱性能确认
	GB/T 3075-2021 Metallic materials—Fatigue testing—Axial force-controlled method 金属材料疲劳试验轴向力控制方法
	GB/T 2994-2021 High alumina refractory mortars 高铝质耐火泥浆
	GB/T 40653-2021 英文名称：Information security technology—Technical requirements for security processor 信息安全技术安全处理器技术要求
	GB/T 5900.1-2021 Machine tools—Connecting dimensions of spindle noses and work holding chucks—Part 1: Conical connection 机床主轴端部与卡盘连接尺寸第1部分：圆锥连接
	GB/T 40614-2021 Technical requirment of performance evaluation for solar thermal power plant 光热发电站性能评估技术要求
	GB/T 40868-2021 Planning and design of controlled environments for research and production at the nanometer scale 纳米尺度科研生产受控环境规划与设计
	GB/T 4134-2021 Gold ingots 金锭
	GB/T 24279.2-2021 Textiles - Determination of certain flame retardants - Part 2: Phosphorus flame retardants 纺织品某些阻燃剂的测定第2部分:磷系阻燃剂
	GB/T 17909.2-2021 Cranes - Crane operating manual - Part 2: Mobile cranes 起重机起重机操作手册第2部分：流动式起重机
	GB/T 17934.1-2021 Graphic technology-Process control for the production of half-tone colour separations，proof and production prints-Part 1:Parameters and measurement methods 印刷技术网目调分色版、样张和生产印刷品的加工过程控制第1部分：参数与测量方法
	GB/T 19963.1-2021 Technical specification for connecting wind farm to power system—Part 1: On shore wind power 风电场接入电力系统技术规定第1部分：陆上风电
	GB/T 17934.8-2021 Graphic technology—Process control for the production of half-tone colour separations, proof and production prints—Part 8:Validation print processes working directly from digital data 印刷技术网目调分色版、样张和生产印刷品的加工过程控制第8部分：直接使用数字数据的验证印刷品制作过程

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