2020 year China issued GB standards list


	GB/T 39138.2-2020 Methods for chemical analysis of gold nickel chromium iron silicon boron alloys—Part 2：Determination of nickel content—Dimethylglyoxime gravimetric method 金镍铬铁硅硼合金化学分析方法第2部分：镍含量的测定丁二酮肟重量法
	GB/T 18993.2-2020 Chlorinated poly (vinyl chloride) (PVC-C) piping systems for hot and cold water installations—Part 2：Pipes 冷热水用氯化聚氯乙烯（PVC-C）管道系统第2部分：管材
	GB/T 39554.1-2020 National integrated government service platform—Basic category and implementation list of government service items—Part 1: Coding requirements 全国一体化政务服务平台政务服务事项基本目录及实施清单第1部分：编码要求
	GB/T 39140.1-2020 Clamping flanges for diamond circular saw blade—Part 1:Stone processing 金刚石圆锯片用夹紧卡盘第1部分：石材加工
	GB/T 18997.2-2020 Plastic/aluminum/ plastic composite pressure pipes—Part 2: Composite pipes butt-welded by aluminum pipe 铝塑复合压力管第2部分：铝管对接焊式铝塑管
	GB/T 19017-2020 Quality management—Guidelines for configuration management 质量管理技术状态管理指南
	GB/T 19066.2-2020 Composite wave-serrated metal gaskets for pipe flanges一Part 2:Class designated 管法兰用金属波齿复合垫片第2部分：Class系列
	GB/T 39145-2020 Test method for the content of surface metal elements on silicon wafers—Inductively coupled plasma mass spectrometry 硅片表面金属元素含量的测定电感耦合等离子体质谱法
	GB/T 39396.1-2020 Quality requirements for international GNSS monitoring and assessment system (iGMAS)—Part 1: Observation data 全球连续监测评估系统（iGMAS）质量要求第1部分：观测数据
	GB/T 39544-2020 Natural rubber latex concentrate—Determination of total phosphate content—Spectrophotometric method 浓缩天然胶乳总磷酸盐含量的测定分光光度法
	GB/T 39543-2020 Design and metrological characteristics of dial test indicators（lever type）杠杆指示表的设计和计量特性
	GB/T 39515.1-2020 Agricultural and forestry machinery—Environmental requirements for sprayers—Part 1: General 农林机械喷雾机的环境要求第1部分：通用要求
	GB 27791-2020 City gas pressure regulating installation 城镇燃气调压箱
	GB 38598-2020 General requirement for label and instruction book of disinfection products 消毒产品标签说明书通用要求
	GB/T 39577-2020 Technical requirements for access network—10-Gigabit-capable passive optical networks (XG-PON) 接入网技术要求 10Gbit/s无源光网络（XG-PON）
	GB/T 39551.1-2020 Patent navigation guide—Part 1：General principles 专利导航指南第1部分：总则
	GB/T 17037.2-2020 Plastics—Injection moulding of test specimens of thermoplastic materials—Part 2:Small tensile bars 塑料热塑性塑料材料注塑试样的制备第2部分：小拉伸试样
	GB/T 39534-2020 Corrosion of metals and alloys—Method for determination of the uniform corrosion rate of stainless steels and nickel based alloys in liquids 金属和合金的腐蚀液体中不锈钢和镍基合金均匀腐蚀速率测定方法
	GB/T 10395.27-2020 Agricultural and forestry machinery—Safety—Part 27：Bale wrappers 农林机械安全第27部分：缠膜机
	GB/T 39479-2020 Prediction method for radiated noise of offshore platform 海洋平台辐射噪声预报方法

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