Evaluation program for carbon monoxide meters
Abstract
Specifications are given for 25 devices, indicative of carbon monoxide meters and the three dosimeters available on the market. The indicating instruments belong to four types; electrochemical detection, semiconductor devices, detection by catalytic oxidation, and infrared spectroscopy. The operating principle of the detectors is described. The lowest scale available for the indicating instruments in generally 100 ppm, but there are electrochemical meters and IR instruments with a scale as low as 10 ppm. The IR instruments are, as a rule, more sensitive than the devices with other detectors; they are also more expensive. Most of the meters operate in the 0.40 C temperature range and at a relative humidity of up to 90%.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- 1979
- Bibcode:
- 1979STIN...8221569A
- Keywords:
-
- Carbon Monoxide;
- Dosimeters;
- Infrared Spectrophotometers;
- User Requirements;
- Catalysts;
- Electrochemical Oxidation;
- Semiconductor Devices;
- Sensitivity;
- Instrumentation and Photography