Chapter - 1
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monitor. Always provide adequate ventilation in the work area to decrease the
risk of an oxygen deficient atmosphere.
Personnel in an oxygen deficient atmosphere will not realize they are being
asphyxiated. Breathing of pure inert gases will cause immediate unconsciousness.
Symptoms of asphyxia include:
•
Rapid breathing
•
Nausea
•
Vomiting
•
Inability to move
•
Convulsive movements
•
Collapse
•
Abnormal pulse
•
Rapid fatigue
•
Faulty judgment
•
Insensitivity to pain
•
Abnormal emotions
Remove any personnel in an oxygen deficient atmosphere to fresh air.
Get
medical attention immediately. Positive pressure breathing apparatus must be
worn by any rescuers entering a suspected oxygen deficient atmosphere.
Nitrogen gas may accumulate in low or confined areas. All requirements of
OSHA 1910.146 (Confined Space Guidelines) must be met when inert gases may