Flammable Liquids Flashcards
Additives in bulk petroleum storage facilities are similar in combustibility to_______but way pose greater health hazards?
Diesel
Synthetic foam with the basic elements being fluorochemical surfactants, hydrocarbon surfactants, and solvents.
Aqueous Film Forming Foam (AFFF)
The most commonly used foams available today
AFFF and AR-AFFF
What makes AR-AFFF alcohol resistant?
The addition of a polymer
Self-contained fire engine that has been specifically designed to respond to flammable liquid incidents in the Nova region. May have pump and roll compatibility
AR foam unit
A self-contained unit specifically designed to have a pump and roll capability. probably a minimum of 100 gallons of foam concentrate, may have dual agent application
ARFF unit
How large is a barrel?
42 gallons
Liquid having a flashpoint between 100°F and 200°F
combustible liquid
What is primary containment at a fixed facility?
Includes tanks and piping where the product is contained under normal circumstances
What is secondary containment at a fixed facility?
The direct area around the tanks where product will be contained in the initial stages of an incident
What is tertiary containment at a fixed facility?
Additional area where product will be contained in the event of a catastrophic incident
Complete foam delivery system that includes a water supply and foam supply for a set duration
fixed foam system
Foam delivery system consisting of pipe and foam discharge outlets but has no supply of foam or water connected to it. Requires action by the fire department
semi fixed foam system
Designed to deliver finished foam from above the surface of the contents of the tank
subsurface foam system
Used on some floating roof thanks where protection is provided to the rim of the roof only by use of a foam dam
rim protection foam system
Liquid with a flashpoint below 100°F and vapor pressure not exceeding 40 psi absolute
flammable liquid
Protein foam with Fluorocarbon surfactant added. No alcohol tolerance
fluoro-protein foam
types of foam application methods
Type I:no longer used, was intended to deliver finished foam gently to the surface.
Type II: fixed foam outlet design to deliver foam to the burning surface with restricted agitation.
Type III: use of master streams or hand line nozzles to deliver foam, results in some agitation to the surface
What does a foam task force consist of?
two AR foam units,
one pump-and-roll unit,
two engines,
one battalion chief,
one hazardous materials asset (if not already dispatched).
Substance having a strong affinity for water
hydrophilic
What is a loading rack at a fixed facility?
Area where tank vehicles are loaded with product
Combustible liquids including diesel, heating oil, and jet fuel
petroleum distillate
What are the two primary DOT regulated pipelines in northern Virginia?
Colonial and plantation
Piping that incorporates control valves to deliver product from the pipeline to storage tanks
pipeline manifold (fixed facility)
Flammable liquids that mix readily with water
polar solvent
Where are pump and roll units typically found?
Airports
Gas that has additives to reduce automotive emissions, typically oxygenates ether or ethanol
reformulated gasoline
A spill approximately 55 gallons or less, a small cylinder, or a small leak from a large container with a minimum flow
small spill
spill exceeding 55 gallons or multiple spills from multiple small
packages or containers. Large spill responses include any incident at or involving pipelines, horizontal tanks, tank farms, or flammable liquid tanker trucks or rail cars.
large spill
Product that is outside primary containment as a result of a leak. may be further defined as contained or uncontained.
spills
A system of corrosion protection that uses a small electrical current
What is cathodic protection?
A large tank with a fixed steel roof with an exposed product surface within the tank
What is a cone roof?