Oxygen Deficiency Iyad Sawalha, Air Products. Dubai | 5 December 2013. OXYGEN DEFICIENCY. It’s a phenomenon INSIDIOUS ( causing harm in a way that is gradual or not easily noticed ) SUDDEN WITHOUT WARNING. 3 DAYS WITHOUT DRINK. 2 BREATHS WITHOUT OXYGEN. 3 MINUTES WITHOUT BREATHING.
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Dubai | 5 December 2013
2 BREATHS WITHOUT OXYGEN
3 MINUTES WITHOUT BREATHING
ENDANGER YOUR LIFE
3 WEEKS WITHOUT FOOD
WITH 0% OXYGEN, THE SECOND BREATH WILL CAUSE
LOSS OF CONSCIOUSNESS WITHOUT WARNING
WITHIN A FEW MINUTES,
BRAIN DAMAGE MAY BE IRREVERSIBLE
IN CASE OF PROGRESSIVE OXYGEN DEFICIENCY O2 content is decreasing in blood
Progressive Asphyxiation O2 content less than 18%
These symptoms are similar to those of general malaise and are not recognized as asphyxiation by the victim (inert gases are odorless, colorless, tasteless)
If the Oxygen atmosphere deficiency is only between 10 and 18%:
THE VICTIM FEELS ONLY GENERAL MALAISE AND DOES NOT RELATE THIS TO THE ONSET OF ASPHYXIATION
With less than 6% of oxygen :
Immediate loss of consciousness
19.5 % Minimum acceptable O2 level
15-19% Decreased ability to work strenuously; Impair coordination
12-14% Respiration increases; Poor judgment
10-12% Respiration increases; Lips blue.
8-10% Mental failure; Fainting; Nausea; Unconsciousness; Vomiting
6-8% 8 minutes – fatal; 6 minutes - 50% fatal; 4-5 minutes - possible recovery
4-6% Coma in 40 seconds; Death
usually NO second chances !
About a million employees enter confined spaces every day. In most cases, those workers complete their task without incident, but despite the many precautions in place, 70 workers per year never make it back out alive.
A confined space is a space which has any of the following characteristics :
Limited opening for entry and exit
Unfavorable natural ventilation
Not designed for continuous worker occupancy
an unplanned rescue will probably be your last
KEY WORD :
Training… Established Emergency Response Procedures… Appropriate equipment and techniques
Rescue should be well planned… Frequent Drills
What to do
Abnormal circumstances, consider:
Before an accident think about:
DON’T RUSH… STOP & THINK !
CONSIDER THE ASPHYXIATION RISK
LEAVE THE DANGER AREA
IMPLEMENT THE APPROPRIATE PROCEDURES