Chemical agent monitoring system

A chemical agent conversion tube assembly for use in a process for detecting an airborne chemical warfare agent comprising VX gas by drawing air to be analyzed for said agent through said assembly, comprising:

• a polymeric conversion tube member having an inlet and an outlet and defining a conversion passage therethrough,
• a chemical warfare agent conversion filter located within said conversion passage of said conversion tube member, said conversion filter being comprised of a plurality of adjacent filter elements defining a filter stack, and
• a conversion reagent disposed on at least some of said filter elements for converting said VX gas to a more volatile analog of said VX gas, said reagent producing said analog to be airborne whereby said plurality of filter elements within said conversion passage are sufficiently unrestricted to permit said analog to be carried by said air flow and to pass through said glass or polymer tube and through said outlet to a detection device located downstream of said chemical conversion tube for analysis of said analog from which the presence and concentration of VX gas in said air can be determined.

A conversion tube assembly for use in a system for detecting an airborne chemical warfare agent comprising VX gas by drawing air to be analyzed for said chemical warfare agent through said assembly, comprising:

• a polymeric, tubular member having an inlet and an outlet connected by a passageway through which air, possibly including said chemical warfare agent, can be drawn through said inlet;
• and
• a conversion reagent dispersed upon a filter element securely disposed within said passageway, said conversion agent disposed for contact and capable of reacting with any said VX gas drawn through said inlet to quantitatively convert said chemical warfare agent to a more volatile analog which is readily swept from said passageway through said outlet by said air for downstream analysis for said analog from which the presence and concentration of VX gas in said air can be determined.

A conversion tube assembly for use in a system for detecting airborne VX gas by drawing air to be analyzed for said VX gas through said assembly, comprising:

• a polymeric, tubular member having an inlet and an outlet connected by a passageway through which air, possibly including said VX gas, can be drawn through said inlet;
• and
• a conversion reagent comprising silver fluoride dispersed upon a filter element securely disposed within said passageway, said conversion reagent disposed for contact and capable of reacting with any said VX gas drawn through said inlet to convert said VX gas to its more volatile G analog which is readily swept from said passageway through said outlet by said air for downstream analysis for said G analog from which the presence and concentration of VX gas in said air can be determined.