Browse Standards
4331+ standards in database
4331 result(s) found
新的和老化后的纤维素电气绝缘材料粘均聚合度的测量
Measurement of the average viscometric degree of polymerization of new and aged cellulosic electrically insulating materials
用区熔拉晶法和光谱分析法评价多晶硅棒的规程
Practice for evaluation of polocrystalline silicon rods by float-zone crystal growth and spectroscopy
电气绝缘材料 耐热性 第4部分：老化烘箱 单室烘箱
Elecrical insulating materials - Thermal endurance properties - Part 4: Ageing ovens - Single-chamber ovens
电气绝缘材料热传导性能试验方法
Test method for thermal transmission properties of electrical insulation materials
软磁铁氧体材料成品、半成品化学分析方法
Chemical analysis methods for products and semi-finished products made of soft ferrite materials
用于Ⅰ类和电池供电车辆的可开闭保护接地移动式剩余电流装置(SPE-PRCD)
Switched protective earth portable residual current devices for class Ⅰ and battery powered vehicle applications
电气附件 家用和类似用途的不带过电流保护的移动式剩余电流装置(PRCD)
Electrical accessories - Portable residual current devices without integral overcurrent protection for household and similar use (PRCD)
调速电气传动系统 第3部分 :电磁兼容性要求及其特定的试验方法
Adjustable speed electrical power drive systems - Part 3: EMC requirements and specific test methods
包括变速应用的能效电动机选择和应用导则
Selection of energy-efficient motors including variable speed applications - Application guide
电气绝缘击穿数据统计分析导则
Guide for the statistical analysis of electrical insulation breakdown data
电子和通信设备用变压器和电感器 第4部分：按能力批准程序评定质量的开关电源变压器分规范
Transformers and inductors for use in electronic and telecommunication equipment - Part 4: Sectional specification for power transformers for switched mode power supplies (SMPS) on the basis of the capability approval procedure
调速电气传动系统 第701部分：电气传动系统的通用接口和使用规范 接口定义
Adjustable speed electrical power drive systems - Part 701: Generic interface and use of profiles for power drive systems - Interface definition
通信和电子设备用变压器和电感器铁心片 第1部分：机械和电性能
Laminations for transformers and inductors for use in telecommunication and electronic equipment - Part 1：Mechanical and electrical characteristics
电动机系统节能改造规范
Specification for the reconstruction of motor system for energy-saving
300mm 硅单晶切割片和磨削片
300mm monocrystalline silicon as cut slices and grinded slices
300mm 硅单晶抛光片
300mm polished monocrystalline silicon wafers
300mm 硅单晶
300mm monocrystalline silicon
硅片平整度、厚度及总厚度变化测试 自动非接触扫描法
Test method for measuring flatness, thickness and total thickness variation on silicon wafers by automated non-contact scanning
硅片平坦表面的表面粗糙度测量方法
Test method for measuring surface roughness on planar surfaces of silicon wafer
移动电话用锂离子蓄电池及蓄电池组总规范
General specification of lithium-ion cells and batteries for mobile phone