JJG49-1999
弹簧管式精密压力表和真空表检定规程V.R.of BourdonTube Precision Pressure Gauge
JJG50-1996
石油产品用玻璃液体温度计检定规程V.R.of Liquid-in-Glass Thermometer for
JJG51-2003
带平衡液柱活塞式压力真空计检定规程V.R.of Pressure-Vaccum Gauge with
JJG52-1999
弹簧管式一般压力表、压力真空表和真空表V.R.ofBourdon Tube Pressure