2021 year China issued GB standards list


	GB/T 40006.7-2021 Plastics—Recycled plastics—Part 7: Polycarbonate(PC) materials 塑料再生塑料第7部分：聚碳酸酯(PC)材料
	GB/T 24621.1-2021 Application guide for electric safety of low-voltage switchgear and controlgear assemblies—Part 1: switchgear assemblies 低压成套开关设备和控制设备的电气安全应用指南第1部分：成套开关设备
	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 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 25915.8-2021 Cleanrooms and associated controlled environments—Part 8: Classification of air cleanliness by chemical concentration (ACC) 洁净室及相关受控环境第8部分：按化学物浓度划分空气洁净度(ACC)等级
	GB/T 2877.2-2021 Hydraulic two-port slip-in cartridge valves—Part 2: Mounting dimensions 液压二通盖板式插装阀　第2部分：安装连接尺寸
	GB/T 18691.3-2021 Agricultural irrigation equipment—Irrigation valves—Part 3: Check valves 农业灌溉设备灌溉阀第3部分：止回阀
	GB/T 40258-2021 Evaluation method for corrosion resistance of hollow fiber membrane to chemical cleaning agent 中空纤维膜耐化学清洗剂腐蚀性能评价方法
	GB 10648-2013 饲料标签《第1号修改单》
	GB/T 26024-2021 Seamless copper and copper alloys tube for valves on air-conditioning and refrigeration system 空调与制冷系统阀件用铜及铜合金无缝管
	GB/T 40994-2021 Smart city -- Intelligent multifunctional pole -- Specifications for service functionality and operation management 智慧城市智慧多功能杆服务功能与运行管理规范
	GB/T 16277-2021 Road construction and maintenance machinery and equipment—Asphalt paver 道路施工与养护机械设备沥青混凝土摊铺机
	GB/T 999-2021 Voltage ratings of DC electric traction system 直流电力牵引额定电压
	GB/T 29317-2021 Terminology of electric vehicle charging/battery swap infrastructure 电动汽车充换电设施术语
	GB/T 26779-2021 Hydrogen fuel cell electric vehicle refueling receptacle 燃料电池电动汽车加氢口
	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 39859-2021 Gallium-based liquid metal 镓基液态金属
	GB/T 3836.3-2021 Explosive atmospheres—Part 3：Equipment protection by increased safety“e” 爆炸性环境第3部分：由增安型“e”保护的设备
	GB/T 40860-2021 Analysis requirements for design extension conditions of pressurized water reactor nuclear power plants 压水堆核电厂设计扩展工况分析要求
	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

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