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ASTM F820-2021Standard Test Method for Measuring Air Performance Characteristics of Central Vacuum Cleaning ...2023-04-18

GB/T 39833-2021煤的燃烧特性测定方法一维炉法Test method for coal combustion characteristics- One-dimensional...2023-04-18

BS EN 62607-3-1-2014 Nanomanufacturing. Key control characteristics. Luminescent nanomaterials. Quantum effi...2023-04-17

GB/T 39415.1-2020包装袋特征性能规范方法第1部分：纸袋Packaging sacks—Method of specifications for chara...2023-04-15

GB/T 36043-2018大型汽轮发电机组轴系动力特性技术规范Specification of large-scale steam turbine-generator shaf...2023-04-15

GB/T 39938-2021室内电取暖地暖性能特征定义、测试方法、尺寸和公式符号Electric room heating. Underfloor heat...2022-10-24

GB/T 39956.2-2021气动电-气压力控制阀第2部分：评定商务文件中应包含的主要特性的试验方法Pneumatic fluid power. ...2022-10-24

GB/T 15972.47-2021光纤试验方法规范第47部分：传输特性的测量方法和试验程序宏弯损耗Specifications for optical ...2022-10-24

GB/T 40742.2-2021产品几何技术规范（GPS）几何精度的检测与验证第2部分：形状、方向、位置、跳动和轮廓度特征的检测与...2022-10-24

GB/T 19789-2021包装材料塑料薄膜和薄片氧气透过性试验库仑计检测法Packaging material. Test method for oxygen ...2022-10-24

GB/T 40852.1-2021高频感性元件非电特性及其测量方法第1部分：电子和通信设备用表面安装固定电感器High frequency i...2022-10-25

GB/T 11807-2021核电厂安全重要松脱部件声学监测系统的特性、设计和运行规程Characteristics, design and operatio...2022-10-25

GB/T 41232.2-2021纳米制造关键控制特性纳米储能第2部分：纳米正极材料的密度测试Nanomanufacturing—Key control ...2022-10-25

GB/T 17743-2021电气照明和类似设备的无线电骚扰特性的限值和测量方法Limits and methods of measurement of radio ...2022-10-25

GB/T 7164-2022用于核反应堆的辐射探测器特性及测试方法Characteristics and test methods of radiation detectors ...2022-10-26

GB/T 12581-2006加抑制剂矿物油氧化特性测定法Standard test method for oxidation characteristics of inhibited m...2022-06-14

GB/T 8243.1-2003内燃机全流式机油滤清器试验方法第1部分;压差-流量特性Methods of test for full-flow lubricati...2022-06-14

GB/T 19733-2005缩微摄影技术透明缩微品阅读器特性的测量Micrographics—Readers for transparent microforms—M...2022-06-13

GB/T 12579-2002润滑油泡沫特性测定法Determination of foaming characteristics of lubricating oils2022-06-12

YD/T 951-1998ISDN 远程信息处理业务终端的特性和协议Characteristics and protocols for terminals for telematic ...2022-06-12

YY/T 0457.7-2003医用电气设备.光电X射线影像增强器特性.第7部分:调制传递函数的测定Medical electrical equipment...2022-06-10

GB/T 15130.1-1994信息处理数据交换用90mm改进调频制记录的位密度为15916磁通翻转/弧度、每面80条磁道的软磁盘 ...2022-06-10

GB/T 15131.1-1994信息处理数据交换用130mm改进调频制记录的位密度为13262磁通翻转/弧度、每面80条磁道的软磁盘 ...2022-06-09

GB/T 33856-2017应急声系统设备主要性能测试方法Methods of measurement for main characteristics of equipments o...2022-06-09

YC/T 37.4-2003滤棒物理性能的测定.第4部分:硬度Test of filters physical characteristics--Part 4:Hardness...2022-06-09

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