GB/T 40068-2021.Electrofusion welding sleeve( tape) for thermal insulation pipeline. 1范围 GB/T 40068规定了保温管道用高密度聚乙烯电热熔套(带)的标记、产品形式和规格尺寸、要求、试验方法、检验规则、标志和

GB/T 39978-2021.Nanotechnology- Resistivity of carbon nanotube powder-Four probe method. 1范围 GB/T 39978规定了碳纳米管粉体压制成厚块的电阻率的四探针测试方法。 GB/T 39978适用于采用四探针法

GB/T 22685-2021.Packaging and label on controls for househole and similar use. 1范围 GB/T 22685规定了家用和类似用途控制器、保护器运输产品包装的基本要求、包装箱技术要求、装箱要求、产品包装防护基本要求、试验方法

GB/T 40071-2021.Nanotechnologies- Measurement of the number of layers of graphene- related two-dimensional (2D) materials- Optical contrast method. 1范

GB/T 40181-2021.Test method and evaluation for flushability of disposable sanitary nonwoven materials. 1范围 GB/T 40181规定了一次性卫生用非织造材料的可冲散性能试验方法及评价，包括湿态断

GB/T 22576.4-2021.Medical laboratories-Requirements for quality and competence-Part 4: Requirements in the field of clinical chemistry examination. 1范

GB/T 18916.56-2021.Norm of water intake- Part 56: Fur. 1范围 GB/T 18916.56规定了毛皮取水定额的计算方法、取水定额以及定额管理要求。 GB/T 18916.56适用于现有、新建和改扩建的毛皮加工企业取水量的管理。 2规范性引用文件

GB/T 22576.3-2021.Medical laboratories- Requirements for quality and competence-Part 3 :Requirements in the field of urine examination. 1范围 GB/T 22576

GB/T 39974-2021.Magnesium partially stabilized zirconia ceramic element for oxygen measurement in molten steel. 1范围 GB/T 39974规定了钢水测氧用镁稳定氧化锆陶瓷元件(简称"元件

GB/T 38047.2-2021.Evaluation methods for reliability on smart household appliances-Part 2 : Special requirements for room air conditioners. 1范围 GB/T 3

GB/T 39975-2021.Aluminum nitride ceramic dissipate heat substrates. 1范围 GB/T 39975规定了氮化铝陶瓷散热基片的分类与标记.技术要求、试验方法、检验规则.标志、包装和贮存。 GB/T 39975适用于LED、电子封装等领域

GB/T 9481-2021.Axial-flow pump of medium-small size. 1范围 GB/T 9481规定了中小型轴流泵的型式、型号和基本参数、技术要求试验方法、检验规则、标志、包装、运输和贮存。 GB/T 9481适用于输送清水或物理及化学性质类似于水的其他液体或含有