For AC repair in Lansing MI, like us on Facebook!
See what our customers are saying about our AC repair service in Lansing MI on Google!
For AC Repair Service in Lansing MI, call RA Mechanical & Sons, Inc.!
517.886.1554
4613 N Grand River Ave. Lansing, MI 48906
For AC Repair Service in Lansing MI, call RA Mechanical & Sons, Inc.!

Allowable Exposure Levels to Carbon Monoxide

Allowable (Legal) Limits for Carbon Monoxide

Occupational Safety & Health Administration, USA (OSHA) (for industrial situations) -

Permissible Exposure Limit (PEL, by TWA) - 50 ppm, 8 hrs.
Old PEL Standard (by TWA) - 35 ppm, 8 hrs.
Threshold Limit Value (TLV, by TWA) - 25 ppm (29 mg/cu. m)
(recommended by American Conference of Governmental & Industrial Hygienists ACGIH)
Ceiling (max. value, 15 min.) - 200 ppm (229 mg/cu. m)

MI Occupational Safety & Health Administration (MIOSHA) -

PEL (Industry, by TWA) - 35 ppm, 8 hrs. (38.5 mg/cu. m)
PEL (Construction, by TWA) - 50 ppm, 8 hrs. (55 mg/cu. m)
Ceiling (max. value) - 200 ppm (229 mg/cu. m)

Environmental Protection Agency, USA (EPA) -

Domestic, outdoor air, all ages (TWA) - 9 ppm*, 8 hrs.
Domestic, outdoor air, all ages (TWA) - 35 ppm, 1 hr.

World Health Organization (WHO) -

Domestic, outdoor air, all ages (TWA) - 9 ppm*, 8 hrs.

American Society of Heating, Refrigeration & Air Conditioning Engineers (ASHRAE) -

Indoor air (leakage at a heat register) - 9 ppm

American Gas Association -

Indoor air (leakage at a heat register) - 15 pm


TWA - Computed by making measurements at intervals over 8 hours, then adding the sums of the concentrations and the intervals, and dividing by 8 hours (480 min.). * Based on several published studies of people with coronary ischemic disease showing ECG changes during moderate exercise when breathing concentrations of CO giving 3% COHb.
CALL US TODAY • (517) 886-1554 • OR • FILL OUT OUR ONLINE FORM
CALL US TODAY • (517) 886-1554 • OR
FILL OUT OUR ONLINE FORM
For AC repair in Lansing MI, like us on Facebook!
See what our customers are saying about our AC repair service in Lansing MI on Google!
 
 
RA Mechanical & Sons, Inc • 4613 N. Grand River Lansing, MI 48906
Monday through Friday 8:00am to 4:30pm • 24/7 Emergency Service
For AC repair in Lansing MI, like us on Facebook! For AC repair service in Lansing MI, find us on Google!
4613 N. Grand River Lansing, MI 48906
Monday through Friday 8:00am to 4:30pm
24/7 Emergency Service
Schedule your Air Conditioning replacement in East Lansing MI.
Home   |   Email Us   |   Schedule Service   |   Get a Quote   |   Ask a Tech   |   Maintenance   |   Employment   |   Privacy Policy