operties of the hydrogen gas sensor itselfUS20010009652May 28, 1998Jul 26, 2001Jose I. ArnoBy contacting the gas stream with an aqueous medium in the presence of a reducing agent such as sodium thiosulfate, ammonium hydroxide, or potassium iodide; prevents formation of oxyfluoride (OF2); controls greenhouse gas pollutionUS20020029613Sep 10, 2001Mar 14, 2002Sensor Tek, LlcGas sensorUS20020051132Apr