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一、概述1.评定依据JJG49-1999《弹簧管式精密压力表和真空表》检定规程、JJF1059-1999《测量不确定度评定与表示》。2.环境条件温度为(20±3)℃,相对湿度不大于85%,标准大气压,恒温2h以上。3.测量标准标准器为二等活塞式压力计,允许示值误差为±0.05%。4.被测对象0.4级弹簧管式精密压力表,量程为(0～10)MPa。
I. Overview 1. Assessment based on JJG49-1999 “spring tube pressure gauge and vacuum gauge” test procedures, JJF1059-1999 “Measurement Uncertainty Evaluation and said.” 2. Environmental conditions Temperature (20 ± 3) ℃, relative humidity less than 85%, standard atmospheric pressure, temperature 2h above. 3. Measurement standards for the second-class piston-type pressure gauge, allowing indication error of ± 0.05%. 4 measured object 0.4 spring tube precision pressure gauge, measuring range (0 ~ 10) MPa.