Describes hygrometers which determine the water content of a gas by detecting water vapour condensation occurring on a cooled surface or by checking the stability of the condensation on this surface. The hygrometers considered here may be used for determining water vapour pressure, without requiring calibration, in a system operating under total pressures greater than or equal to atmospheric pressure.
Status: PublishedPublication date: 1981-03
Edition: 1Number of pages: 5
Technical Committee: ISO/TC 193/SC 1 Analysis of natural gas
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