2021 year China issued GB standards list


	GB/T 21537-2021 Cone rubber fender 锥型橡胶护舷
	GB/T 3836.4-2021 Explosive atmospheres—Part 4：Equipment protection by intrinsic safety“i” 爆炸性环境第4部分：由本质安全型“i”保护的设备
	GB 1886.320-2021 National Food Safety Standard Food Additive Sodium Gluconate 食品安全国家标准食品添加剂葡萄糖酸钠
	GB 1886.317-2021 National food safety standards Food additive β-carotene (source of Salina algae) 食品安全国家标准食品添加剂 β- 胡萝卜素（盐藻来源）
	GB/T 12519-2021 General specification of analytical instruments 分析仪器通用技术条件
	GB/T 40617-2021 Guidelines for construction of safety ecological in electrical place 电气场所的安全生态构建指南
	GB/T 40071-2021 Nanotechnologies—Measurement of the number of layers of graphene-related two-dimensional (2D) materials—Optical contrast method 纳米技术石墨烯相关二维材料的层数测量光学对比度法
	GB/T 40177-2021 Optics and optical instruments—Ophthalmology—Graduated dial scale 光学和光学仪器眼科学分度盘刻度
	GB 1886.318-2021 National Food Safety Standards Food Additives Corn Yellow 食品安全国家标准食品添加剂玉米黄
	GB/T 25036-2021 Children’s canvas rubber footwear 布面童胶鞋
	GB/T 40774-2021 Technical specification for eco-design product assessment—Office equipment 生态设计产品评价技术规范办公设备系列产品
	GB/T 40237-2021 Test method for ignitability of foamed plastic—Welding spark method 泡沫塑料着火性试验方法电焊火花法
	GB 1886.342-2021 National Food Safety Standard Food Additive Aluminum Ammonium Sulfate 食品安全国家标准食品添加剂硫酸铝铵
	GB/T 40792-2021 Test method of weight loss of sintered neodymium iron boron permanent magnets 烧结钕铁硼永磁体失重试验方法
	GB/T 40778.1-2021 Internet of things—Web-oriented open service system implementation—Part 1:Reference architecture 物联网面向Web开放服务的系统实现第1部分：参考架构
	GB/T 40778.2-2021 Internet of things—Web-oriented open service system implementation—Part 2:Thing description method 物联网面向Web开放服务的系统实现第2部分：物体描述方法
	GB/T 40564-2021 Test method of epoxy molding compound for electronic packaging 电子封装用环氧塑封料测试方法
	GB/T 15717-2021 Test method for vacuum-deposited metal thickness—Electric resistance method 真空金属镀层厚度测试方法电阻法
	GB/T 40478-2021 Specifications for the basic data items in an enterprise credit file for supervision purpose 企业信用监管档案数据项规范
	GB/T 40203-2021 Information technology—Industrial cloud service—Service agreement guide 信息技术工业云服务服务协议指南

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