8 July 2004 Page 1 OXYGEN DEFICIENCY AIGA TP 01/04 Disclaimer All publications of AIGA or bearing AIGA’s name contain information, including Codes of Practice, safety procedures and other technical information that were obtained from sources believed by AIGA to be reliable and/ or based on technical information and experience currently available from members of AIGA and others at the date of the publication. As such, we do not make any representation or warranty nor accept any liability as to the accuracy, completeness or correctness of the information contained in these publications. While AIGA recommends that its members refer to or use its publications, such reference to or use thereof by its members or third parties is purely voluntary and not binding. AIGA or its members make no guarantee of the results and assume no liability or responsibility in connection with the reference to or use of information or suggestions contained in AIGA’s publications. AIGA has no control whatsoever as regards, performance or non performance, misinterpretation, proper or improper use of any information or suggestions contained in AIGA’s publications by any person or entity (including AIGA members) and AIGA expressly disclaims any liability in connection thereto. AIGA’s publications are subject to periodic review and users are cautioned to obtain the latest edition. Asia Industrial Gases Association 298 Tiong Bahru Road, #20-01 Central Plaza, Singapore 168730 Internet: http//www.asiaiga.org
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8 July 2004 Page 1
OXYGEN DEFICIENCY
AIGA TP 01/04
Disclaimer
All publications of AIGA or bearing AIGA’s name contain information, including Codes of Practice, safety procedures and other technical information that were obtained from sources believed by AIGA to be reliable and/ or based on technical information and experience currently available from members of AIGA and others at the date of the publication. As such, we do not make any representation or warranty nor accept any liability as to the accuracy, completeness or correctness of the information contained in these publications. While AIGA recommends that its members refer to or use its publications, such reference to or use thereof by its members or third parties is purely voluntary and not binding. AIGA or its members make no guarantee of the results and assume no liability or responsibility in connection with the reference to or use of information or suggestions contained in AIGA’s publications. AIGA has no control whatsoever as regards, performance or non performance, misinterpretation, proper or improper use of any information or suggestions contained in AIGA’s publications by any person or entity (including AIGA members) and AIGA expressly disclaims any liability in connection thereto.
AIGA’s publications are subject to periodic review and users are cautioned to obtain the latest edition.
Asia Industrial Gases Association 298 Tiong Bahru Road, #20-01 Central Plaza, Singapore 168730
Internet: http//www.asiaiga.org
8 July 2004 Page 2
ACKNOWLEDGEMENT
This document is adopted from the European Industrial Gases Association document “Oxygen Deficiency”and acknowledgement and thanks are hereby given to EIGA for permission granted for the use of their document
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OXYGEN DEFICIENCY
ASPHYXIATION DANGER
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It's a phenomenon
INSIDIOUS
SUDDEN
WITHOUT WARNING
A SERIOUS HAZARDA SERIOUS HAZARDA SERIOUS HAZARDA SERIOUS HAZARD
ASPHYXIATION DANGER
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3 WEEKS WITHOUT FOOD
3 DAYS WITHOUT DRINK
3 MINUTES WITHOUT BREATHING
ENDANGER YOUR LIFEENDANGER YOUR LIFE
2 BREATHS WITHOUT OXYGEN
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IN CASE OF TOTAL OXYGEN DEFICIENCYthe blood suddenly loses its oxygen
SUDDEN O2 DEFICIENCYSUDDEN O2 DEFICIENCY
BLOOD ATMOSPHEREWITHOUT O2
O2
CO2
WITH 0% OXYGEN, THE SECOND BREATH WILL CAUSE LOSS OF CONSCIOUSNESS WITHOUT WARNING WITHOUT WARNING
WITHIN A FEW MINUTES, BRAIN DAMAGE MAY BE IRREVERSIBLEBRAIN DAMAGE MAY BE IRREVERSIBLE
O2 contentin blood
O2 contentin blood
NORMAL CONDITIONNORMAL CONDITION
BLOOD ATMOSPHERE
O2
CO2
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IN CASE OF PROGRESSIVE OXYGEN DEFICIENCYOxygen content is decreasing in blood
These symptoms are similar to those of general malaise and are not recognised as asphyxiation by the victim (inert gases are
odourless, colourless, tasteless)The victim tries to overcome this by himselfTHE VICTIM DOES NOT CALL FOR HELPTHE VICTIM DOES NOT CALL FOR HELP
OVER A CERTAIN THRESHOLD, THE VICTIM CAN'T REACT CAN'T REACT :
THE LOSS OF CONSCIOUSNESS IS THE LOSS OF CONSCIOUSNESS IS SUDDENSUDDEN
OVER A CERTAIN THRESHOLD, THE VICTIM CAN'T REACT CAN'T REACT :
THE LOSS OF CONSCIOUSNESS IS THE LOSS OF CONSCIOUSNESS IS SUDDENSUDDEN
BUTBUTBUTBUT
O2 content less than 18%
Vertigo headache speech difficulties
Progressive asphyxiation
reduction and loss of consciousness dulling of the mind loss of muscle control
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With less than 6% of oxygen : With less than 6% of oxygen : immediate loss of immediate loss of consciousness consciousness
In allall cases:THE VICTIM NEVERNEVER REALISES THE RISK
If the Oxygen atmosphere deficiency is only between 1010 and 1818% :
THE VICTIM FEELS ONLY GENERAL MALAISE THE VICTIM FEELS ONLY GENERAL MALAISE AND DOES NOT RELATE THIS AND DOES NOT RELATE THIS
TO THE ONSET OF ASPHYXIATIONTO THE ONSET OF ASPHYXIATION
BUTBUTBUTBUT
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If the blood fails in bringing If the blood fails in bringing oxygen:oxygen: