Gas monitoring system and method

Details Gas monitoring system and method Gas monitoring system and method

2005-01-11

2005-01-11

Williams, Hezron (Department: 2856)

Measuring and testing

Gas analysis

C073S031050, C340S632000, C436S124000

Reexamination Certificate

active

06840084

ABSTRACT:
An apparatus and method for monitoring a source gas for detection of phosgene and/or chlorine dioxide therein, in which the source gas is filtered for removal of hydrogen sulfide and/or chlorine and/or hydrogen chloride prior to monitoring of the source gas by a gas sensor specific for phosgene or chlorine dioxide detection. The filter includes a support having Ag2O thereon, and when the source gas contains chlorine dioxide, chlorine also is present in the source gas prior to its filtration.

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