
9
Common Gas Hazards
Combustible Gases
and Vapors (LEL)
O
2
–
Oxygen Deficiency
CO –
Carbon Monoxide
H
2
S –
Hydrogen Sulphide
SO
2
–
Sulphur Dioxide
NH
3
–
Ammonia
Cl
2
–
Chlorine
ClO
2
–
Chlorine Dioxide
CO
2
–
Carbon Dioxide
H
2
–
Hydrogen
HCN –
Hydrogen Cyanide
NO –
Nitric Oxide
N0
2
–
Nitrogen Dioxide
O
3
–
Ozone
PH
3
–
Phosphine
Markets Agriculture
Aircraft Maintenance
Chemical Manufacturing
Construction
Electrical Utilities
Fire
Food and Beverage Manufacture
Gas Utilities
Hospitality
Manufacturing
Oil & Gas Production
Petrochemical and Refining
Pulp & Paper
Pharmaceutical
Power Plants
Councils
Shipyards
Steel Mills and Foundries
Water & Wastewater Treatment
Welding
Common Gas Hazards
Combustible Gases
and Vapors (LEL)
O
2
–
Oxygen Deficiency
CO –
Carbon Monoxide
H
2
S –
Hydrogen Sulphide
SO
2
–
Sulphur Dioxide
NH
3
–
Ammonia
Cl
2
–
Chlorine
ClO
2
–
Chlorine Dioxide
CO
2
–
Carbon Dioxide
H
2
–
Hydrogen
HCN –
Hydrogen Cyanide
NO –
Nitric Oxide
N0
2
–
Nitrogen Dioxide
O
3
–
Ozone
PH
3
–
Phosphine
Instruments G-TECTA
TM
SG
2
G-TECTA
TM
SG
G-TECTA
TM
4G
G-TECTA
TM
4GP
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