Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: EN 60523:1993
• Năm ban hành / Publication date: 1993
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Direct-current potentiometersIEC 60523:1975 + A1:1979
• Phạm vi áp dụng / Scope of standard: This standard applies to d.c. potentiometers assembled from resistors and switches and operating entirely on direct current, having accuracy classes of 0.0005 ... 0.1 (5 ppM ... 1000 ppM parts per million). Is applies also to auxiliary equipment which is a built-in part of the potentiometer. This standard does not apply to potentiometers which are set automatically or semi-automatically nor to those which also employ graduations on the null detector to obtain a part of the indicated value, nor to external auxiliary equipment used with the potentiometer.