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Precision ozone calibration system based on vapor pressures of ozone

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3 Author(s)
Mauersberger, K. ; School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455 ; Hanson, D. ; Morton, J.

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A precision ozone calibration system for stratospheric research has been developed and evaluated. Vapor pressures above solid ozone are mixed with a carrier gas (N2) to produce stratospheric ozone mixing ratios at total pressures of 1 to over 20 Torr. The uncertainty in the ozone mixing ratios is approximately ±1.5%, the stability of ozone is ±0.3%. Experiments to be calibrated may sample the gas mixture over a wide range of flow rates; the maximum throughput of gas with corrections of less than 1% to ozone is about 200 Torr l/min. A mass spectrometer system continuously monitors the purity and stability of the N2–O3 gas mixture.

Published in:

Review of Scientific Instruments  (Volume:58 ,  Issue: 6 )

Date of Publication:

Jun 1987

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