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Albany
Corvallis
541.812.0409
541.753.6760
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Salem
541.735.5252
971.701.1923
 
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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.
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Location
We service most AC brands and models near Corvallis OR.
Business Address:
33919 SE Eastgate Circle
Corvallis, OR 97333
Contact Us
Schedule your Air Conditioning replacement in Salem OR.
Company Phone:
We offer 24/7 emergency Air Conditioner repair service in Corvallis OR.
Office Hours:
Monday- Friday 8am-5pm
Emergency Service Available
For your Cooling repair in Corvallis OR, trust a licensed, certified contractor.
License:
#95758
Location
We service most AC brands and models near Corvallis OR.
Business Address:
33919 SE Eastgate Circle
Corvallis, OR 97333
Contact Us
Schedule your Air Conditioning replacement in Salem OR.
Company Phone:
We offer 24/7 emergency Air Conditioner repair service in Corvallis OR.
Office Hours:
Monday- Friday 8am-5pm
Emergency Service Available
For your Cooling repair in Corvallis OR, trust a licensed, certified contractor.
License:
#95758
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