2021 year China issued GB standards list


	GB/T 14914.3-2021 The specification for marine observation -- Part 3: Surface and subsurface buoy-based observation 海洋观测规范第 3 部分：浮标潜标观测
	GB/T 2424.6-2021 Environmental testing-Part 3:Supporting documentation and guidance- Confirmation of the performance of temperature/humidity chambers 环境试验第3部分：支持文件及导则温度/湿度试验箱性能确认
	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 2423.38-2021 Environmental testing-Part 2:Test methods-Test R:Water test method and guidance 环境试验第2部分：试验方法试验R：水试验方法和导则
	GB/T 39856-2021 Hot rolled titanium and titanium alloy seamless tubes 热轧钛及钛合金无缝管材
	GB/T 40867-2021 Technical specifications for unified power flow controller 统一潮流控制器技术规范
	GB/T 40872-2021 Plastics—Test methods of polyethylene cellular 塑料聚乙烯泡沫试验方法
	GB/T 39853.1-2021 Power quality measurement in power supply systems—Part 1: Power quality instruments (PQI) 供电系统中的电能质量测量第1部分：电能质量监测设备（PQI）
	GB/T 25000.30-2021 Systems and software engineering—Systems and software quality requirements and evaluation(SQuaRE)—Part 30:Quality requirements framework 系统与软件工程系统与软件质量要求和评价(SQuaRE) 第30部分：质量需求框架
	GB/T 40907-2021 Methods for the determination of prohibited substances in furniture products and related materials -- 2, 4-diaminotoluene and 4, 4'-methylenedianiline 家具产品及其材料中禁限用物质测定方法? 2,4-二氨基甲苯、4，4’-二氨基二苯甲烷
	GB/T 3836.35-2021 Explosive atmospheres—Part 35：Classification of areas for explosive dust atmospheres 爆炸性环境第35部分：爆炸性粉尘环境场所分类
	GB/T 39908-2021 Science and technology program-generated scientific data archiving—General code set 科技计划形成的科学数据汇交通用代码集
	GB/T 4787.1-2021 Grading capacitors for high-voltage alternating current circuit-breakers—Part 1:General 高压交流断路器用均压电容器第1部分：总则
	GB/T 39897-2021 Determination of volatile organic compounds and aldehydes and ketones in nonmetallic parts of vehicles 车内非金属部件挥发性有机物和醛酮类物质检测方法
	GB/T 40251-2021 Code of diagnosis for MSX disease of oysters - In situ hybridization method 牡蛎单孢子虫病诊断规程原位杂交法
	GB/T 40572-2021 Multimedia interaction over multiple terminals—Technical specification on multimedia interaction based on non-local network 多屏互动基于远程网络的终端间互动技术要求
	GB/T 39904-2021 Guidance for regional brand cultivation and construction 区域品牌培育与建设指南
	GB/T 40132-2021 General specification of vibration motors for mobile devices 便携式电子产品用振动电机通用规范
	GB/T 39902-2021 Technical specification for the levitation control system of medium-low speed maglev vehicle of the urban rail transit 城市轨道交通中低速磁浮车辆悬浮控制系统技术条件
	GB/T 40134-2021 Electromagnetic compatibility requirements for space systems 航天系统电磁兼容性要求

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