SOG HAZ MAT 003 NATURAL GAS EMERGENCIES Flashcards
Natural gas is lighter than air, what will it do in an outside environment?
Dissipate rapidly
What does natural gas do in buildings?
Pockets in attics and dead spaces
What are the flammable limits of natural gas?
4-15% in air
Natural gas is non-toxic, but how does it pose a health hazard?
Displaces oxygen, causing asphyxiation if in a confined space
How can flammable gas ranges of natural gas be determined?
Combustible gas indicator CGI
Why should burning natural gas be allowed to burn?
Because it keeps it visible. If it is not visible, is also has an explosive potential because its not being burned
How should natural gas fires be controlled?
By stopping the flow of natural gas
Where should apparatus be parked at natural gas incidents?
Uphill and upwind to avoid becoming an ignition source for the gas
Which company needs to be dispatched to natural gas emergencies?
SCG…verify their response with NHFD dispatch
What must be a consideration at building explosions which do not have natural gas in them?
Natural gas as the cause due to underground leaks in pipes or cracks in ground
Which units/resources are equipped with CGI?
Both squad companies and gas company
Who must be notified to verify structural stability of buildings involved in an explosion or gas incident?
Building department
Hand Lines and large caliber hose lines may be used for what?
Dissipation of vapor accumulation or fire protection
What are the gas companies responsible for?
Locating and eliminating gas leak sources
What PPE shall personnel wear when working in the vicinity of a known or suspected gas leak
Full PPE with SCBA
