B & B Appliance and Refrigeration Service, LLC has been a trusted Air Conditioning contractor in Littleton CO.
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B & B Appliance and Refrigeration Service, LLC has been a trusted Air Conditioning contractor in Littleton CO.

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.
After Hours Service Available!
CALL US TODAY • (303) 973-3408 • OR • FILL OUT OUR ONLINE FORM
For AC repair in Littleton CO, like us on Facebook!
For Air Conditioning repair in Littleton CO, visit us on Google!
For AC repair in Littleton CO, check out our Yelp!
For AC repair in Littleton CO, check out our Yelp!
 
ADDRESS: 5762 S. ROBB ST. LITTLETON, CO 80127
HOURS: MONDAY - FRIDAY: 7:30AM-4:30PM
Since 1982 it has been our mission to help you keep your home comfortable and safe.
After Hours Service Available!
CALL US TODAY
(303) 973-3408
OR, FILL OUT OUR FORM
For AC repair in Littleton CO, like us on Facebook!
For Air Conditioning repair in Littleton CO, visit us on Google!
For AC repair in Littleton CO, check out our Yelp!
For AC repair in Littleton CO, check out our Yelp!
5762 S. ROBB ST. LITTLETON, CO 80127
MONDAY - FRIDAY: 7:30AM-4:30PM
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