Method and apparatus for generating a vapor/gas mixture, and use

Details Method and apparatus for generating a vapor/gas mixture, and use Method and apparatus for generating a vapor/gas mixture, and use

1993-01-29

1995-03-07

Raevis, Robert

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

G01N 122

Patent

active

053947304

ABSTRACT:
A method and apparatus for generating a vapor/gas mixture includes storing a plurality of volatile liquids to provide the vapor component of the mixture, adding predetermined amounts of the volatile liquids and a dilution gas to a container, and thereafter removing the mixture to prepare a second vapor/gas mixture. In one approach, subsequent mixtures are prepared using different volatile liquids as the vapor component. Alternatively, a portion on the first vapor/gas mixture is removed from the container and then additional volatile liquid or dilution gas are added to the container to prepare a second vapor/gas mixture including the same vapor but at a different percentage in the mixture, or including additional vapors not used in the first vapor/gas mixture.

REFERENCES:
patent: 3618363 (1971-11-01), Kraus
patent: 4349358 (1982-09-01), Tarancon
patent: 4723436 (1988-02-01), Moreth et al.
patent: 5239856 (1993-08-01), Mettes et al.

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