2021 year China issued GB standards list


	GB/T 39851.2-2021 Road vehicles—Diagnostic communication over Controller Area Network (DoCAN) —Part 2:Transport protocol and network layer services 道路车辆基于控制器局域网的诊断通信第2部分：传输层协议和网络层服务
	GB/T 39784-2021 General functional requirements for electronic archive management system 电子档案管理系统通用功能要求
	GB/T 39843-2021 Electronic characteristic measurements—Local critical current density and its distribution in large-area superconducting films 电子学特性测量大面积超导膜的局域临界电流密度及其分布
	GB/T 39829-2021 Tool storage with automatic tool changer—Reliability test method 刀库和自动交换装置可靠性试验方法
	GB/T 39828-2021 Test method for determining elastic modulus of thick ceramic coating at elevated temperature 陶瓷厚涂层的高温弹性模量试验方法
	GB/T 39827.1-2021 Plastics -- Post-consumer poly(ethylene terephthalate) (PET) bottle recyclates -- Part 1: Designation system and basis for specifications 塑料用过的聚对苯二甲酸乙二醇酯(PET)瓶回收物第1部分：命名系统和分类基础
	GB/T 39819-2021 Conveyor belts—Determination of minimum transition distance on three idler rollers 输送带三辊托辊最小过渡距离的确定
	GB/T 40072-2021 Strength test method for submersible metallic framework 潜水器金属框架强度试验方法
	GB/T 28934-2021 Training specification for professional managers 职业经理人培训规范
	GB/T 9766.6-2021 Test method for tyre valve - Part 6: Test method for core 轮胎气门嘴试验方法第6部分: 气门芯试验方法
	GB/T 39807-2021 Process specifications of Pb-free plating tin and tin alloys 无铅电镀锡及锡合金工艺规范
	GB/T 40485-2021 Method of determining automatically the random reflectance of vitrinite in coal—Image analysis method 煤的镜质体随机反射率自动测定图像分析法
	GB/T 39802-2021 Technical requirements for thermal insulation material of urban heat-supplying 城镇供热保温材料技术条件
	GB/T 1425-2021 Determination of melting temperature range for precious metals and their alloys—Testing method of thermal analysis 贵金属及其合金熔化温度范围的测定热分析试验方法
	GB/T 40073-2021 External pressure strength test procedure for metal pressure hull of submersibles 潜水器金属耐压壳外压强度试验方法
	GB/T 41108.2-2021 Safety of machinery -- Safety requirements for interlocking devices -- Part 2: Interlocking devices with guard-locking 机械安全联锁装置的安全要求第2部分：带防护锁定的联锁装置
	GB/T 18916.60-2021 Norm of water intake -- Part 60: Silicone 取水定额第60部分：有机硅
	GB/T 6580-2021 Glass—Resistance to attack by a boiling aqueous solution of mixed alkali—Method of test and classification 玻璃耐沸腾混合碱水溶液侵蚀性试验方法和分级
	GB/T 3099.4-2021 Terminology of fasteners—Control, inspection, delivery, acceptance and quality 紧固件术语控制、检查、交付、接收和质量
	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

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