2021 year China issued GB standards list


	GB/T 21432-2021 Graphite pressure vessels 石墨制压力容器
	GB/T 28594-2021 Weather nowcasting 临近天气预报
	GB/T 39922-2021 Inoculated log production regulations for the cultivation of white jelly fungus 段木银耳耳棒生产规范
	GB/T 39824-2021 Determination of relative strength of dyes in solution 溶液中染料相对强度的测定
	GB/T 39749-2021 Evaluation method and graduation for energy efficiency performance of insulating glass unit 中空玻璃隔热保温性能评价方法及分级
	GB/T 39753-2021 General technology requirements for photovoltaic (PV) module recycling and recovery 光伏组件回收再利用通用技术要求
	GB/T 39794.2-2021 Test method for wind uplift resistance of mental roof—Part 2:Dynamic pressure method 金属屋面抗风掀性能检测方法第2部分：动态压力法
	GB/T 10782-2021 General rule for the quality of preserved fruits 蜜饯质量通则
	GB/T 12786-2021 General technical conditions for automatic internal combustion engine power stations 自动化内燃机电站通用技术条件
	GB/T 17215.211-2021 Electricity metering equipment(AC)—General requirements, tests and test conditions—Part 11：Metering equipment 电测量设备（交流）通用要求、试验和试验条件第11部分：测量设备
	GB/T 11640-2021 Seamless aluminum alloy gas cylinders 铝合金无缝气瓶
	GB/T 3480.3-2021 Calculation of load capacity of spur and helical gears—Part 3: Calculation of tooth bending strength 直齿轮和斜齿轮承载能力计算第3部分：轮齿弯曲强度计算
	GB/T 3883.209-2021 Safety of motor-operated hand-held, transportable and garden tools - Part 209: Particular requirements for hand-held tappers and threaders 手持式、可移式电动工具和园林工具的安全第209部分：手持式攻丝机和套丝机的专用要求
	GB/T 3883.305-2021 Safety of motor-operated hand-held, transportable and garden tools - Part 305: Particular requirements for transportable bench grinders 手持式、可移式电动工具和园林工具的安全第305部分：可移式台式砂轮机的专用要求
	GB/T 3883.309-2021 Safety of motor-operated hand-held, transportable and garden tools - Part 309: Particular requirements for transportable mitre saws 手持式、可移式电动工具和园林工具的安全第309部分：可移式斜切锯的专用要求
	GB/T 6809.12-2021 Reciprocating internal combustion engines—Vocabulary of components and systems—Part 12:Exhaust emission control systems 往复式内燃机零部件和系统术语第12部分：排放控制系统
	GB/T 7424.20-2021 Optical fibre cable generic specification—Part 20:Basic optical cable test procedures—General and definitions 光缆总规范第20部分：光缆基本试验方法总则和定义
	GB/T 7424.22-2021 Optical fibre cable generic specification—Part 22：Basic optical cable test procedures—Environmental test methods 光缆总规范第22部分：光缆基本试验方法环境性能试验方法
	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 39998-2021 Paper, board and paper products—Determination of alkylphenol polyethoxylates—HPLC-MS method 纸、纸板和纸制品烷基苯酚聚氧乙烯醚类的测定高效液相色谱质谱法

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