Foam Flashcards
Two main categories of foam?
HI-EX-CLASS A combustibles– in areas inaccessible like cellars and ship holds- NOT suitable for outdoor flammable liquids
Low-expansion foam- useful on fires and spill involving flammable and combustible liquids
Two main categories of foam?
HI-EX-CLASS A combustibles– in areas inaccessible like cellars and ship holds- NOT suitable for outdoor flammable liquids
Low-expansion foam- useful on fires and spill involving flammable and combustible liquids
Low Expansion Foams?
Fluoroprotein
Alcohol Resistant Fluoroprotein
AFFF
Different Types of Foams are NOT compatible and should Never..
be mixed for storage in Foam Carriers , Tender, etc.
Different Types of Foams are NOT compatible and should Never..
be mixed for storage in Foam Carriers , Tender, etc.
YOU MAY apply 2 different types of LOW EXPANSION foam at an incident….however?
Hi ex should NOT be used in conjunction with LOW EX
Low Expansion Foams?
Fluoroprotein (protein based)
Alcohol Resistant Fluoroprotein (protein based)
AFFF (synthetic based)
HI EX is synthetic based
Different Types of Foams are NOT compatible and should Never..
be mixed for storage in Foam Carriers , Tender, etc.
YOU MAY apply 2 different types of LOW EXPANSION foam at an incident….however?
Hi ex should NOT be used in conjunction with LOW EX
YOU MAY apply 2 different types of LOW EXPANSION foam at an incident….however?
Hi ex should NOT be used in conjunction with LOW EX
Protein Foam…?
IS NOT USED BY FDNY
-but may be encountered at some bulk plants( do not confused with PROTEIN BASED FOAM)
Protein Foam…?
IS NOT USED BY FDNY
-but may be encountered at some bulk plants( do not confused with PROTEIN BASED FOAM)
Several ways to mix Foam Solution?
- premixed- AFFF extinguisher
- eductor- venturi effect
- inject concentrate into pumper -FIMM (satellite unit, portable FIMM-satellite unit)
Several ways to mix Foam Solution?
- premixed- AFFF extinguisher
- eductor- venturi effect
- inject concentrate into pumper -FIMM (satellite unit, portable FIMM-satellite unit)
Four primary methods of extinguishment?
Smother-prevents air from mixing with flammable vapors
Suppressing- stops release of flammable vapors
Separates- the flame from the surface of the fuel
Cools- water content of the foam cools the fuel further reducing vapor generation
Four primary methods of extinguishment?
Smother-prevents air from mixing with flammable vapors
Suppressing- stops release of flammable vapors
Separates- the flame from the surface of the fuel
Cools- water content of the foam cools the fuel further reducing vapor generation
Fluoroprotein foam is compatible with?
dry chem extinguishing agents
- can use either fresh or salt water
- effective on gasohol/containing 10% ethanol
Fluoroprotein foam is compatible with?
dry chem extinguishing agents
- can use either fresh or salt water
- effective on gasohol/containing 10% ethanol
- MOST WIDELY USED by FDNY
- 5 gallon cans issued to EVERY ENGINE AND LADDER
- Stored in bulk on FOAM TENDER/FOAM CARRIER
Alcohol Resistant Fuoroprotein Foam (Fluoropolydol)…
- superior for hydrocarbon fuels (GASOLINE/FUEL OILS) and polar solvents…3% rate for hydrocarbons and 6% for polar solvents
- preferred use if ENTRY into pool of fuel must be made…apply continuously when members enter foam blanket
- 1000 gallons of Fuoropolydo is carried in BOOSTER TANKS OF FOAM CARRIER 206 AND 95
- FOAM CARRIERS carry 5 gallon cans, as do Satellite units
AFFF….(synthetic based(
- spreads over surface for FASTER knockdown of fire than protein based
- can be used through fog nozzle
- poor resistance to flashback and burning
- EXCELLENT for FUEL OIL/KEROSENE AND JET FUEL
- FDNY use limited to 2 1/2” gallon pressurized water extinguisher with straight bore nozzle
AFFF….(synthetic based(
- spreads over surface for FASTER knockdown of fire than protein based
- can be used through fog nozzle
- poor resistance to flashback and burning
- EXCELLENT for FUEL OIL/KEROSENE AND JET FUEL
- FDNY use limited to 2 1/2” gallon pressurized water extinguisher with straight bore nozzle
ARAFFF?
Alcohol resistant Aqueous film forming foam
Dept. does NOT use but may be encountered with MUTUAL AID
ARAFFF?
Alcohol resistant Aqueous film forming foam
Dept. does NOT use but may be encountered with MUTUAL AID
Foam Identification?
Fluoroprotein-BROWN
ALCOHOL- GREEN
HI-EX-YELLOW
AFFF-BLACK
BANDED
-mixing different concentrates must be avoided at all costs, particularly in storage tanks such as booster tanks of foam carriers or foam tenders
Foam Identification?
Fluoroprotein-BROWN
ALCOHOL- GREEN
HI-EX-YELLOW
AFFF-BLACK
BANDED
-mixing different concentrates must be avoided at all costs, particularly in storage tanks such as booster tanks of foam carriers or foam tenders
At times Dept. will intentionally apply two different types of Finished Firefighting Foam at an incident…example..
AIRCRAFT incidents:
Port authority crash trucks use AFFF, for fast knockdown capability on jet fuels
FDNY UNITS will arrive and may be tasked with overhauling…this could involve entering foam blanket that is floating on jet fuel…a blanket aerated Fluoroprotein or Alcohol Fluoro. foam should be applied
At times Dept. will intentionally apply two different types of Finished Firefighting Foam at an incident…example..
AIRCRAFT incidents:
Port authority crash trucks use AFFF, for fast knockdown capability on jet fuels
FDNY UNITS will arrive and may be tasked with overhauling…this could involve entering foam blanket that is floating on jet fuel…a blanket aerated Fluoroprotein or Alcohol Fluoro. foam should be applied
Premixing of AFFF should be limited to?
HAND HELD EXTINGUISHERS
Premixing Fluoroproteing…
-3 - 5 gallon cans into 500 gallon booster tank for 3% solution (4 cans for 750 gallon tank)…..ONLY used when foam eductor cannot be placed into operation…pumper should NOT BE CONNECTED TO HYDRANT