2021 year China issued GB standards list


	GB/T 40018-2021 Information security technology—Certificate request and application protocol based on multiple channels 信息安全技术基于多信道的证书申请和应用协议
	GB/T 40722.2-2021 Styrene-butadiene rubber(SBR) -- Determination of the microstructure of solution-polymerized SBR -- Part 2: FTIR with ATR method 苯乙烯-丁二烯橡胶（SBR）? 溶液聚合SBR微观结构的测定? 第2部分：红外光谱ATR 法
	GB/T 39560.4-2021 Determination of certain substances in electrical and electronic products—Part 4: Mercury in polymers, metals and electronics by CV-AAS, CV-AFS , ICP-OES and ICP-MS 电子电气产品中某些物质的测定第4部分：CV-AAS、CV-AFS、ICP-OES和ICP-MS测定聚合物、金属和电子件中的汞
	GB/T 3639-2021 Seamless cold-drawn or cold-rolled steel tubes for precision applications 冷拔或冷轧精密无缝钢管
	GB/T 40711.2-2021 Off-cycle technology/device energy saving effects evaluation methods for passenger cars—Part 2:Idle start-stop system 乘用车循环外技术/装置节能效果评价方法第2部分：怠速起停系统
	GB/T 1615-2021 Carbon disulfide for industrial use 工业二硫化碳
	GB/T 40784.1-2021 Information technology. Biometric profiles for interoperability and data interchange -- Part 1: Overview of biometric systems and biometric profiles 信息技术用于互操作和数据交换的生物特征识别轮廓第1部分：生物特征识别系统概述和生物特征识别轮廓
	GB/T 24183-2021 Metallic materials—Sheet and Strip—Earing test 金属材料薄板和薄带制耳试验方法
	GB/T 40310.1-2021 Ball splines—Part 1:General characteristics and requirements 滚动花键副第1部分：一般特征和要求
	GB/T 22209-2021 Marine no-asbestos fiber reinforced rubber gasket material 船用无石棉纤维增强橡胶垫片材料
	GB 9706.227-2021 Medical electrical equipment—Part 2-27: Particular requirements for the basic safety and essential performance of electrocardiographic monitoring equipment 医用电气设备第2-27部分：心电监护设备的基本安全和基本性能专用要求
	GB/T 3836.30-2021 Explosive atmospheres—Part 30: Equipment and components in explosive atmospheres in underground mines 爆炸性环境第30部分：地下矿井爆炸性环境用设备和元件
	GB/T 20899.4-2021 Methods for chemical analysis of gold ores—Part 4: Determination of copper content 金矿石化学分析方法第4部分：铜量的测定
	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 40204-2021 General rules of two dimensional barcodes for traceability 追溯二维码技术通则
	GB/T 39883-2021 Examination methods for morphine in suspected drugs - Gas chromatography and gas chromatography-mass spectrometry 疑似毒品中吗啡检验气相色谱和气相色谱-质谱法
	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
	GB/T 40687-2021 Internet of things—General specification for vital signs sensing devices 物联网生命体征感知设备通用规范
	GB/T 7731.5-2021 Ferrotungsten—Determination of silicon content—Silicomolybdenum blue spectrophotometric method 钨铁硅含量的测定硅钼蓝分光光度法
	GB/T 40782-2021 General resource of military and civilian—Identification application guideline 军民通用资源标识应用指南

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