GB/T 39821-2021.Plastics-Determination of apparent density of moulding material that cannot be poured from a specified funnel. 1范围 GB/T 39821规定了不能从规定漏

GB/T 39825-2021.Light conveyor belts-Principal characteristics and applications. 1范围 GB/T 39825规定了轻型输送带的基本结构、性能及应用。 GB/T 39825适用于轻型输送带。 2规范性引用文件 下列文件对

GB/T 39822-2021.Plastics-Determination of yellowness index and change in yellowness index. 1范围 GB/T 39822规定了测定透明或不透明塑料的黄色指数及其变化值的方法。 GB/T 39822适用于塑料材料

GB/T 39759-2021.Laboratory animal一Terminology. 1范围 GB/T 39759界定了实验动物领域常用的术语。 GB/T 39759适用于实验动物领域的标准化工作,特别是实验动物标准的编写和实施。 2基本术语 2.1 实验动物 laboratory anim

GB/T 39761.1-2021.Green product assessment-Household electric appliances-Part 1: Refrigerators , air-conditioners and washing machines. 1范围 GB/T 39761

GB/T 33770.6-2021.Information technology service-Outsourcing-Part 6:General requirements for service acquirer. 1范围 GB/T 33770的本部分提出了信息技术服务外包服务需求方(以下简称

GB/T 39963-2021.Technical specification on C80~ C100 concrete shaft lining applied in vertical freezing shaft. 1范围 GB/T 39963规定了立井冻结法凿井井壁应用C80~C100混凝土

GB/T 39864-2021.Electrochemical performance test of lithium manganese oxide-Test method for the initial specific discharge capacity and the initial ef

GB/T 39861-2021.Electrochemical performance test of lithium manganese oxide-Test method for discharge plateau capacity ratio and cycle life. 1范围 GB/T

GB/T 39859-2021.Gallium-based liquid metal. 1范围 GB/T 39859规定了镓基液态金属的技术要求、试验方法、检验规则、标志、包装、运输、贮存,以及随行文件与订货单内容。 GB/T 39859适用于散热流体工质、导电流体工质、热界面材料、电子浆料、磁流体

GB/T 39751-2021.Energy detection method for equipment manufacturing system-Guideline. 1范围 GB/T 39751规定了装备制造系统能耗检测的范围和种类、总体要求、检测及计算方法、检测报告等内容。 GB/T 397

GB/T 28170.2-2021.Information technology-Computer graphics and image processing-Extensible 3D (X3D)-Part 2: Scene access interface(SAI). 1范围 GB/T 2817