HOW PURE THE AIR?

A CO (carbon monoxide) Air Quality Monitor Model is described which demonstrates the feasibility of the catalytic combustion technique as a method of measuring low concentrations of CO. Through tight control of critical operating parameters, the technique demonstrates extended capability and sensitivity beyond those readily obtained by other continuous-measuring technologies. CO in the sample stream is oxidized over a selective catalyst bed. The resulting heat of combustion causes an easily measured temperature rise proportional to CO concentration. The continuous CO analyzer has a sensitivity of 0 to 10 ppm full scale, detectability limit of 100 ppb, linearity extending to the 500-ppm CO level, and a zero stability of better than plus or minus 2 percent of full- scale. The principle of the catalytic detection of CO is explained, details of the detector are described, and the sample conditioning system is outlined. The determination of the possible interference effects of other atmospheric components is also described.

  • Corporate Authors:

    Dun Donnelley Publishing Corporation

    222 South Riverside Plaza
    Chicago, IL  United States  60606
  • Authors:
    • Bossart, C J
  • Publication Date: 1976-6

Media Info

  • Features: Figures;
  • Pagination: p. 96-99
  • Serial:
    • Industrial Research
    • Volume: 18
    • Issue Number: 6
    • Publisher: Dun Donnelley Publishing Corporation

Subject/Index Terms

Filing Info

  • Accession Number: 00139692
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 26 1976 12:00AM