UDC621.316.722.4L14GB中华人民共和国国家标准GB/T15300-94IEC393-2-1-1989QC410101电子设备用电位器第二部分：空白详细规范螺杆驱动和旋转预调电位器评定水平EPotentiometers for use in electronic equipmentPart 2:Blank detail specificationLead-screw actuated and rotary preset potentiometersAssessment level E1994-12-06发布1995-07-01实施国家技术监督局发布
