2021 year China issued GB standards list


	GB/T 39938-2021 Electric room heating—Underfloor heating—Performance characteristics—Definitions, method of testing, sizing and formula symbols 室内电取暖地暖性能特征定义、测试方法、尺寸和公式符号
	GB/T 39995-2021 Determination of sterols 甾醇类物质的测定
	GB/T 40226-2021 Detection of environmental microbial metagenome—High throughput sequencing 环境微生物宏基因组检测高通量测序法
	GB/T 39949.1-2021 Hydraulic fluid power—Mounting dimensions for accessories of single rod cylinder—Part 1:16 MPa medium and 25 MPa series 液压传动单杆缸附件的安装尺寸第1部分：16MPa中型系列和25MPa系列
	GB/T 40265-2021 General rules for determination of enzyme immunoassay antibodies 酶免疫检测抗体检测通则
	GB/T 22148.3-2021 Test method on electromagnetic emissions—Part 3:Electronic control gear for LED modules 电磁发射的试验方法第3部分：LED模块用电子控制装置
	GB/T 40274-2021 Tissue paper—Assessment and monitoring guidelines to quality safety condition of production process 生活用纸生产过程质量安全状态监测与评价指南
	GB/T 25000.1-2021 Systems and software engineering-Systems and software quality requirements and evaluation (SQuaRE)-Part 1:Guide to SQuaRE 系统与软件工程系统与软件质量要求和评价（SQuaRE）第1部分：SQuaRE指南
	GB/T 9790-2021 Metallic materials—Vickers and Knoop microhardness tests of metallic and other inorganic coatings 金属材料金属及其他无机覆盖层的维氏和努氏显微硬度试验
	GB/T 25217.8-2021 Methods for test，monitoring and prevention of rock burst-Part 8:Monitoring method of electromagnetic radiation 冲击地压测定、监测与防治方法第8部分：电磁辐射监测方法
	GB/T 26077-2021 Metallic materials—Fatigue testing—Axial-strain-controlled method 金属材料疲劳试验轴向应变控制方法
	GB/T 27021.10-2021 Conformity assessment—Requirements for bodies providing audit and certification of management systems—Part 10：Competence requirements for auditing and certification of occupational health and safety management systems 合格评定管理体系审核认证机构要求第10部分：职业健康安全管理体系审核与认证能力要求
	GB/T 40271-2021 Test method for identification of textile fibers—Differential scanningcalorimetry(DSC) 纺织纤维鉴别试验方法差示扫描量热法（DSC）
	GB/T 8151.24-2021 Methods for chemical analysis of zinc concentrates—Part 24:Determination of soluble zinc content—Flame atomic absorption spectrometry 锌精矿化学分析方法第24部分:可溶性锌含量的测定火焰原子吸收光谱法
	GB/T 28515.2-2021 Test method for automatically switched optical network(ASON)—Part 2:OTN-based ASON 自动交换光网络(ASON)测试方法第2部分：基于OTN的ASON
	GB/T 40207-2021 Information technology - Industrial cloud service - Metering indicators 信息技术工业云服务计量指标
	GB/T 29186.1-2021 Evaluation of brand value elements-Part 1:General principles 品牌价值要素评价第1部分：通则
	GB/T 40276-2021 Soft nonwoven towels 柔巾
	GB/T 40482-2021 Evaluation indicators for quality of city development 城市发展质量评价指标
	GB/T 29186.2-2021 Evaluation of brand value elements-Part 2:Tangible elements 品牌价值要素评价第2部分：有形要素

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