2021 year China issued GB standards list


	GB/T 40128-2021 Surface chemical analysis—Atomic force microscopy—Test method for thickness of the two-dimensional layered molybdenum disulfide nanosheets 表面化学分析原子力显微术二硫化钼片层材料厚度测量方法
	GB/T 40390-2021 Evaluation requirements for dedicated outdoor air conditioning equipment 独立新风空调设备评价要求
	GB/T 20275-2021 Information security technology -- Technical requirements and testing and evaluation approaches for network-based intrusion detection system 信息安全技术网络入侵检测系统技术要求和测试评价方法
	GB/T 14949.12-2021 Manganese ores - Determination of combined water content - Gravimetric method 锰矿石化合水含量的测定重量法
	GB/T 7991.3-2021 Test method of viterous and porcelain enamels -- Part 3: Determination of resistance to thermal shock 搪玻璃层试验方法第3部分：耐温差急变性能的测定
	GB/T 41076-2021 Microbeam analysis—Electron backscatter diffraction—Quantitative determination of austenite in steel 微束分析电子背散射衍射钢中奥氏体的定量分析
	GB/T 51434-2021 Technical standard for internet security facilities engineering 互联网网络安全设施工程技术标准
	GB/T 4271-2021 Test methods for the performance of solar collectors　太阳能集热器性能试验方法
	GB/T 41064-2021 Surface chemical analysis—Depth profiling—Method for sputter rate determination in X-ray photoelectron spectroscopy, Auger electron spectroscopy and secondary-ion mass spectrometry sputter depth profiling using single and multi-layer thin films 表面化学分析深度剖析用单层和多层薄膜测定X射线光电子能谱、俄歇电子能谱和二次离子质谱中深度剖析溅射速率的方法
	GB/T 19010-2021 Quality management—Customer satisfaction—Guidelines for codes of conduct for organizations 质量管理顾客满意组织行为规范指南
	GB/T 51439-2021 Standard for urban pedestrian and bicycle transport system planning 城市步行和自行车交通系统规划标准
	GB/T 28934-2021 Training specification for professional managers 职业经理人培训规范
	GB/T 40795.1-2021 Chemical analysis method of lanthanum-cerium metals and their compounds—Part 1:Determination of cerium content—Ammonium ferrous sulfate titration method 镧铈金属及其化合物化学分析方法第1部分：铈量的测定硫酸亚铁铵滴定法
	GB 55019-2021 General Code for Accessibility in Building and Municipal Engineering 建筑与市政工程无障碍通用规范
	GB/T 25440.1-2021 Retrieval and analysis of surgical implants—Part 1:Retrieval and handling 外科植入物的取出与分析第1部分：取出与处理
	GB/T 19237-2021 Compressed natural gas dispenser for vehicles 汽车用压缩天然气加气机
	GB/T 40523.3-2021 Ships and marine technology—Measurement of changes in hull and propeller performance—Part 3: Alternative methods 船舶与海上技术船体和螺旋桨性能变化测量第3部分：替代方法
	GB/T 18703-2021 Mechanical vibration and shock—Hand-arm vibration—Measurement and evaluation of the vibration transmissibility of gloves at the palm of the hand 机械振动与冲击手传振动手套掌部振动传递率的测量与评价
	GB/T 40281-2021 Determination of content of nonmetallic inclusions in steel—Extremum analytical method 钢中非金属夹杂物含量的测定极值分析法
	GB/T 28543-2021 Noise measurement method on power capacitors 电力电容器噪声测量方法

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