2021 year China issued GB standards list


	GB/T 39959-2021 Liquid pumps and pump units -- Noise test code -- Grades 2 and 3 of accuracy 液体泵和泵机组噪声试验方法 2级和3级
	GB/T 39919-2021 Code of practice for the plant quarantine of exit freight containers 出境集装箱植物检疫规程
	GB/T 40242-2021 Meteorological grades for power consuming 用电需求气象条件等级
	GB/T 39920-2021 Quarantine protocol for infection with Ranavirus 蛙病毒感染检疫技术规范
	GB/T 39915-2021 Epidemic prevention criteria for animal breeding farm 动物饲养场防疫准则
	GB/T 40244-2021 Chemicals - Liquid or solid identification - Fluidity test method 化学品固液鉴别流动性测定法
	GB/T 40248-2021 Fire safety management of assembly occupancies 人员密集场所消防安全管理
	GB/T 39928-2021 LED filament lamp—Performance requirements LED灯丝灯性能要求
	GB/T 2680-2021 Glass in building—Determination of light transmittance, solar direct transmittance, total solar energy transmittance, ultraviolet transmittance and related glazing factors 建筑玻璃可见光透射比、太阳光直接透射比、太阳能总透射比、紫外线透射比及有关窗玻璃参数的测定
	GB/T 39937-2021 Plastics—Extruded sheets of polypropylene (PP)—Requirements and test methods 塑料制品聚丙烯(PP)挤塑板材要求和试验方法
	GB/T 4490-2021 Conveyor belts with textile carcass—Widths and lengths 织物芯输送带宽度和长度
	GB/T 40179-2021 Determination of organic acids in plant—Liquid chromatography-tandem mass spectrometry 植物中有机酸的测定液相色谱-质谱/质谱法
	GB/T 40178-2021 Ophthalmic optics—Formers 眼科光学模板
	GB/T 39931-2021 Volatile organic compounds from wooden furniture—On-site and rapid detection method 木家具中挥发性有机化合物现场快速检测方法
	GB/T 40175.2-2021 Textiles—Methods of biochemical analysis—Part 2:Pyrethroid pesticides(enzyme-linked immunosorbent assay) 纺织品生物化学分析方法第2部分：拟除虫菊酯类农药（酶联免疫法）
	GB/T 3792-2021 Information and documentation—Resource description 信息与文献资源描述
	GB/T 5095.2504-2021 Electromechanical components for electronic equipment—Basic testing procedures and measuring methods—Part 25-4: Test 25d: Propagation delay 电子设备用机电元件基本试验规程及测量方法第25-4部分：试验25d：传输时延
	GB/T 3684-2021 Conveyor belts—Electrical conductivity—Specification and test method 输送带导电性规范和试验方法
	GB/T 40173-2021 Determination of reducing-end sugar in water-soluble chitosan—Spectrophotometric method 水溶性壳聚糖中还原性端基糖的测定分光光度法
	GB/T 5824-2021 Size system of opening for windows and doors in building 建筑门窗洞口尺寸系列

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