STUDY OF COMPUTER CONTROL DYNAMIC VOLUMETRIC METHODS AND PREPARATION OF WATER CALLIBRATION GASES
Abstract
A new type apparatus of dynamic volumetric calibration system was designed and made in correspond with ISO 6145. The main parameters of dynamic volumetric method can be monitored recorded and calculated by a personal computer. The calibration gases of water in nitrogen with ranges of 10<sup>-7</sup>~10<sup>-6</sup> mol/mol were prepared in the form of diffusion tubes by dynamic volumetric method. Test in comparison with a standard dew point apparatus expressed that the water diffusion tubes are reliable and accurate, and the uncertainties of the calibration gases of water in nitrogen are in the ranges of 3%~4%.
Event details
- Event
- XVII IMEKO World Congress
- Place
- Dubrovnik, CROATIA
- Time
- 22 June 2003 - 28 June 2003
- Website
- http://www.hmd.hr/imeko/