This paper analysed the uncertaities of voltmeter in calibration by potentiometer. 分析了用電位差計檢定電壓表時的不確定度。
The certified value and uncertainty were based on the analytical results of eight labs by non-dispersive infra-red method. 其標準值和不確定度由多家實驗室用非分散紅外法進行分析測定,並經數理統計處理后確定的。