Gas Detection
How NDIR (non-dispersive infrared) CO2 sensors detect gas
May 19 2006
Author: Robert Henderson on behalf of BW Technologies by Honeywell
According to NIOSH concentrations of 40,000 ppm or higher should be regarded as immediately dangerous to life and health. Exposure to very high concentrations (e.g. exposure to 6% volume CO2 for several minutes or 30% volume CO2 for 20-30 seconds), has been linked to permanent heart damage, as evidenced by altered electrocardiograms. Concentrations greater than 10% are capable of causing loss of consciousness within 15 minutes or less.
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