SOG 411 Flashcards
Jacksonville Fire and Rescue Department has authority over hazardous material incident except:
- Marine incidents under jurisdiction of the US Coast Guard
- Incidents on military bases
- Nuclear incidents such as plane crash involving nuclear weapons.
Response to Class 1 (which is) initial isolation distance ______.
Class 1 - Explosives
2,000 feet isolation distance
Class 2 is ______
Compressed Gases
Propane:
Expansion ratio:
Is what than air:
Flammable range of:
- Expansion ratio is 270:1
- Is heavier than air 1.5 times
- Flammable range of 2.1 - 9.5%
Anhydrous Ammonia:
Is what than air:
Can:
Shipped as:
- Lighter than air
- Can ignite and explode
- Shipped as a poisonous gas (non flammable)
Methane:
Is what than air:
Flammable range of:
- Lighter than air
- Flammable range of 5 - 15%
Standard response to ruptured natural gas lines:
- Full PPE with SCBA
- Minimum 1 3/4 charge handline
- PKP staged with FF
- Secure ignition source
- Minimal personnel in hotzone
Natural gas line
Residential is:
- 1/2 - 3/4 inch poly or plastic lines
- Feed metal transitional risers
- Low pressure, low volume
- Directionally fed
Natural gas line
Commercial are:
- 1 - 2 inch poly or plastic lines
- Feed into metal transitional risers
- High pressure and volume than residential lines
- Directionally or loop fed
Natural gas lines
Primary feeders are:
- 2 - 24 inch poly or metal lines
- Feed entire areas of the city or large neighborhoods
- High pressure, high volume
- Directionally or loop fed
Class 3 is
small fire use what:
Large fire use what:
-Class 3 is flammable liquids
Small fires use:
- Dry chemical
- CO2
- Foam extinguisher
Large fires use:
-appropriate foam or water spray
Reportable quantities for hydrocarbons and necessary agencies to notify are:
- Environmental resource management department - ERMD - 10 gallons or more
- Florida Department of Environmental Protection - FDEP - 25 gallons or more
- United States Coast Guard - USCG - Spills in navigable or tributaries water ways.
Class 4 is:
Do not:
- Class 4 - Flammable solids
- Do not use water or foam on reactive materials
Class 5 is:
Class 5 oxidizers
Class 6 is:
If on fire do what?
- Class 5 - Toxic
- Consider letting product burn: may create less of a hazard
