Comparison in the range -2000 Pa to +2000 Pa
Project Description
The participants compare their low gauge pressures in the range from -2000 Pa to 2000 Pa. The transfer standard is a Furness FCO micromanometer.
Final Report 2007-10-29
The project is now completed and reported in
Rantanen M, Semenoja S, Peterson G & Busk J: Low gauge pressure comparisons between MIKES, Metrosert and FORCE Technlogy. Range -2000 Pa to + 2000 Pa, gauge. Report on EUROMET project 921. MIKES Publication J2/2007, 22 p.
The report can be downloaded from www.mikes.fi (Publication series of Metrology).
The results of MIKES and Metrosert were in a good agreement except at nominal pressures -20 Pa and + 20 Pa where the absolute values for normalized errors En were slightly higher than 1.
The uncertainties given for the Metrosert results were much lower than the accredited uncertainties.
The results of MIKES and FORCE Technology in the range -200 Pa to +200 Pa were in a good agreement, using the uncertainties given in the CMC tables. the results outside this range could not be assessed due to the instability of the transfer standard.