#FFFFFF#FFFFFF#777777#575757#FFFFFF#097CE7#E8E8E8#6E6E6E#000000#FFFFFF#A1A1A1#8A8A8A#F7F7F7#323232#D4D4D4#FFFFFF#6E6E6E#D0D0D0#A1A1A1#4D4D4DtruefalsetruefalsetruefalsetruetruetruetruetruetrueslideTimelinebySlidesfalsetruetruefalsefalsetruetruefalsetruefalsefalsetruetruetrueWelcome to Basic Fire Fighting course Module 5: Portable Fire Extinguishing Equipment , Unit 3: AFFF Wet chemical Fire Extinguisherswelcome to basic fire fighting course module 5: portable fire extinguishing equipment , unit 3: afff wet chemical fire extinguishers<p><font size="12">Welcome to Basic Fire Fighting course <b>Module 5: Portable Fire Extinguishing Equipment , Unit 3: AFFF Wet chemical Fire Extinguishers</b></font></p>Course: Basic Firefighting Module: B-5 – Portable Fire Extinguishing Equipment Unit: B-5-3 – AFFF – Wet chemicalUnit outline
In this unit the specifics of AFFF and Wet Chemical Fire Extinguishers will be discussed.unit outline
in this unit the specifics of afff and wet chemical fire extinguishers will be discussed.<p><font size="12"><b>Unit outline</b></font></p><p></p><p><font size="12">In this unit the specifics of AFFF and Wet Chemical Fire Extinguishers will be discussed.</font></p>Unit outline
In this unit the specifics of AFFF and Wet Chemical Fire Extinguishers will be discussedLearning objectives
Upon completing this unit the trainees should be able to …
• Acknowledge the principles of operation of AFFF and Wet Chemical Fire Extinguishers
• Identify the types of fires these extinguishers are best to use against
• Activate and operate AFFF and wet chemical extinguishers learning objectives
upon completing this unit the trainees should be able to …
• acknowledge the principles of operation of afff and wet chemical fire extinguishers
• identify the types of fires these extinguishers are best to use against
• activate and operate afff and wet chemical extinguishers<p><font size="12"><b>Learning objectives</b></font></p><p></p><p><font size="12">Upon completing this unit the trainees should be able to …</font></p><p><font size="12">• <b>Acknowledge the principles of operation of AFFF and Wet Chemical Fire Extinguishers</b></font></p><p><font size="12">• <b>Identify the types of fires these extinguishers are best to use against</b></font></p><p><font size="12">• <b>Activate and operate AFFF and wet chemical extinguishers </b></font></p>Learning objectives
Upon completing this unit the trainees should be able to …
Acknowledge the principles of operation of AFFF and Wet Chemical Fire Extinguishers
Identify the types of fires these extinguishers are best to use against
Activate and operate AFFF and wet chemical extinguishersIntroduction
AFFF is a synthetic, film-forming foam designed for use in shipboard fire-fighting systems. The AFFF extinguisher generates a white foam blanket that extinguishes fire by cooling and isolation from Oxygen.
AFFF has the ability to make a lightwater film that floats on top of flammable fuels. This make it appropriate for liquid fuel fires (type B or type F)
As foam is applied over the flammable liquid surface, it seal it and isolates it from Oxygen. This aqueous film enhances extinguishment and prevents reflash, even
when the foam blanket is disturbed. Fuels which have not been ignited may also be protected with this same
action.
AFFF can also be used for Solid Fuel Fires (type A) where it operates in a manner similar to water
AFFF can be used alone or in combination with Purple-K-Powder (PKP).introduction
afff is a synthetic, film-forming foam designed for use in shipboard fire-fighting systems. the afff extinguisher generates a white foam blanket that extinguishes fire by cooling and isolation from oxygen.
afff has the ability to make a lightwater film that floats on top of flammable fuels. this make it appropriate for liquid fuel fires (type b or type f)
as foam is applied over the flammable liquid surface, it seal it and isolates it from oxygen. this aqueous film enhances extinguishment and prevents reflash, even
when the foam blanket is disturbed. fuels which have not been ignited may also be protected with this same
action.
afff can also be used for solid fuel fires (type a) where it operates in a manner similar to water
afff can be used alone or in combination with purple-k-powder (pkp).<p><font size="12"><b>Introduction</b></font></p><p></p><p><font size="12"><b>AFFF </b>is a synthetic, film-forming foam designed for use in shipboard fire-fighting systems. The AFFF extinguisher generates <b>a white foam blanket </b>that extinguishes fire by <b>cooling and isolation from Oxygen.</b></font></p><p></p><p><font size="12">AFFF has the ability to make a <b>lightwater film that floats on top of flammable fuels. </b>This make it appropriate for <b>liquid fuel fires (type B or type F)</b></font></p><p><font size="12">As foam is applied over the flammable liquid surface, it seal it and isolates it from Oxygen. This aqueous film enhances extinguishment and prevents reflash, even</font></p><p><font size="12">when the foam blanket is disturbed. Fuels which have not been ignited may also be protected with this same</font></p><p><font size="12">action. </font></p><p></p><p><font size="12">AFFF can also be used for <b>Solid Fuel Fires (type A) </b>where it operates in a manner similar to water</font></p><p></p><p><font size="12">AFFF can be used alone or in combination with <b>Purple-K-Powder (PKP).</b></font></p>Introduction
AFFF Fire extinguished through cooling and isolation
Liquid Fuel fires (type F)
Extinguish by cooling and Isolation by creating a light water film
Liquid Fuel fires (type B)
Extinguish by cooling and Isolation by creating a light water film
Solid Fuel Fires (type A)
Equivalent to seawaterAFFF usage
In an AFFF extinguisher, the solution is already in place containing 8.6 lt of water and 0.4 lt AFFF. The extinguisher is pressurized with air of 10 bar pressure. To use it we need to …
• Ensure air pressure gauge shows 10 bar
• We approach the fire in a safe distance and remove the safety pin.
• In a class A fire we shoot towards the top of the fire, trying to “lower” it
• In a class B or F liquid fuel fire, we guide the released foam towards the center of the fire
At 10 bar, the extinguisher can shoot at 7.5 m max and for 50 secs approximatelyafff usage
in an afff extinguisher, the solution is already in place containing 8.6 lt of water and 0.4 lt afff. the extinguisher is pressurized with air of 10 bar pressure. to use it we need to …
• ensure air pressure gauge shows 10 bar
• we approach the fire in a safe distance and remove the safety pin.
• in a class a fire we shoot towards the top of the fire, trying to “lower” it
• in a class b or f liquid fuel fire, we guide the released foam towards the center of the fire
at 10 bar, the extinguisher can shoot at 7.5 m max and for 50 secs approximately<p><font size="12"><b>AFFF usage</b></font></p><p></p><p><font size="12">In an AFFF extinguisher, the solution is already in place containing 8.6 lt of water and 0.4 lt AFFF. The extinguisher is pressurized with air of 10 bar pressure. To use it we need to …</font></p><p><font size="12">• <b>Ensure air pressure gauge shows 10 bar</b></font></p><p><font size="12">• We approach the fire in a safe distance and <b>remove the safety pin.</b></font></p><p><font size="12">• In a <b>class A fire we shoot towards the top of the fire</b>, trying to “lower” it</font></p><p><font size="12">• In <b>a class B or F liquid fuel fire, we guide the released foam towards the center of the fire</b></font></p><p></p><p><font size="12">At 10 bar, the extinguisher can shoot at 7.5 m max and for 50 secs approximately</font></p>AFFF usage
Source: Wikimedia Commons / User: Firetech 117
4
3
2
1
class B shoot towards the center of the fire
class A shoot towards the top of the fire
remove the safety pin
pressure gauge at 10 bar
ActionsAFFF demonstration in action
In this section a demonstration of AFFF usage will be presented
Step 1: Check pressure gauge
Step 2: Check to see if extinguisher is full
Step 3: Remove the safety pin
Step 4: Check operation by pressing the activation lever
Step 5: Aim at the top of the fire for type A and at the base of the fire for type B fires
Step 6: Keep approx. 3-4 m away from the fire
Step 7: Once the fire is extinguished, check the area and retreat
Step 8: Leave the extinguisher down and away from the incident area
Track: Road we reached
Artist: Art of escapism
Used under CC licenseafff demonstration in action
in this section a demonstration of afff usage will be presented
step 1: check pressure gauge
step 2: check to see if extinguisher is full
step 3: remove the safety pin
step 4: check operation by pressing the activation lever
step 5: aim at the top of the fire for type a and at the base of the fire for type b fires
step 6: keep approx. 3-4 m away from the fire
step 7: once the fire is extinguished, check the area and retreat
step 8: leave the extinguisher down and away from the incident area
track: road we reached
artist: art of escapism
used under cc license<p><font size="12"><b>AFFF demonstration in action</b></font></p><p></p><p><font size="12">In this section a demonstration of AFFF usage will be presented</font></p><p></p><p><font size="12"><b>Step 1:</b> Check pressure gauge</font></p><p></p><p><font size="12"><b>Step 2:</b> Check to see if extinguisher is full</font></p><p></p><p><font size="12"><b>Step 3:</b> Remove the safety pin</font></p><p></p><p><font size="12"><b>Step 4:</b> Check operation by pressing the activation lever</font></p><p></p><p><font size="12"><b>Step 5:</b> Aim at the top of the fire for type A and at the base of the fire for type B fires</font></p><p></p><p><font size="12"><b>Step 6:</b> Keep approx. 3-4 m away from the fire</font></p><p></p><p><font size="12"><b>Step 7:</b> Once the fire is extinguished, check the area and retreat<b></b></font></p><p></p><p><font size="12"><b>Step 8:</b> Leave the extinguisher down and away from the incident area </font></p><p></p><p><font size="12"><b>Track: </b>Road we reached</font></p><p><font size="12"><b>Artist: </b>Art of escapism</font></p><p><font size="12">Used under CC license</font></p>AFFF demonstration in action
Step 1: Check pressure gauge
Step 2: Check to see if extinguisher is full
Step 3: Remove the safety pin
Step 4: Check operation by pressing the activation lever
Step 5: Aim at the top of the fire for type A and at the base of the fire for type B fires
Step 6: Keep approx. 3-4 m away from the fire
Step 7: Once the fire is extinguished, check the area and retreat
Step 8: Leave the extinguisher down and away from the incident areaWet chemical fire extinguisher
AFFF extinguishers are based on water and as such, are not the best alternatives to put out a cooking fire. In fact, as you can see in the video, water can cause oil and fats to jet out and cause serious harm.wet chemical fire extinguisher
afff extinguishers are based on water and as such, are not the best alternatives to put out a cooking fire. in fact, as you can see in the video, water can cause oil and fats to jet out and cause serious harm.<p><font size="12"><b>Wet chemical fire extinguisher</b></font></p><p></p><p><font size="12">AFFF extinguishers are based on water and as such, are not the best alternatives to put out a cooking fire. In fact, as you can see in the video, water can cause oil and fats to jet out and cause serious harm.</font></p>Wet chemical fire extinguisher
Source: YouTube channel of Country Fire Authority (CFA) – Victoria District Australia
Published under CC licenseWet chemical fire extinguisher
Extinguishers such as Water, Foam, Powder & CO2 will not always put out big cooking fires and are also extremely dangerous because the pressure of these extinguishers can cause the oil to jet out and cause serious harm.
Therefore, for type F, fat and oil fires, the most suitable, are the Wet Chemical Fire Extinguishers.
• Alternatively, they can also be used for type Ei, Solid Fuel fires.
Wet chemical Fire Extinguishers, contain a solution of potassium and carbonated calcium, that attacks flame in two ways.
1. By cooling. The produced mist, cools the fire and lowers the temperature, thus stopping the fire from spreading, but also preventing splashing of the hot oils or fat.
2. By isolating. The mixture reacts with the hot oil, coating the surface of the cooking oil or fat, with non combustible soapy foam, thus isolating oxygen from the burning fuel.wet chemical fire extinguisher
extinguishers such as water, foam, powder & co2 will not always put out big cooking fires and are also extremely dangerous because the pressure of these extinguishers can cause the oil to jet out and cause serious harm.
therefore, for type f, fat and oil fires, the most suitable, are the wet chemical fire extinguishers.
• alternatively, they can also be used for type ei, solid fuel fires.
wet chemical fire extinguishers, contain a solution of potassium and carbonated calcium, that attacks flame in two ways.
1. by cooling. the produced mist, cools the fire and lowers the temperature, thus stopping the fire from spreading, but also preventing splashing of the hot oils or fat.
2. by isolating. the mixture reacts with the hot oil, coating the surface of the cooking oil or fat, with non combustible soapy foam, thus isolating oxygen from the burning fuel.<p><font size="12"><b>Wet chemical fire extinguisher</b></font></p><p></p><p><font size="12">Extinguishers such as Water, Foam, Powder & CO2 will not always put out big cooking fires and are also extremely dangerous because the pressure of these extinguishers can cause the oil to jet out and cause serious harm.</font></p><p></p><p><font size="12">Therefore, for type F, fat and oil fires, the most suitable, are the Wet Chemical Fire Extinguishers.</font></p><p><font size="12">• Alternatively, they can also be used for type Ei, Solid Fuel fires. </font></p><p></p><p><font size="12">Wet chemical Fire Extinguishers, contain a solution of potassium and carbonated calcium, that attacks flame in two ways.</font></p><p><font size="12">1. <b>By cooling. </b>The produced mist, cools the fire and lowers the temperature, thus stopping the fire from spreading, but also preventing splashing of the hot oils or fat.</font></p><p><font size="12">2. <b>By isolating.</b> The mixture reacts with the hot oil, coating the surface of the cooking oil or fat, with <b>non combustible soapy foam, thus isolating oxygen </b>from the burning fuel.</font></p>Wet chemical fire extinguisher
Wet chemical Fire Extinguisher for fires caused by fat and oils (type F)
Can also be used for Solid Fuel fires (type A)
Wet chemical Fire Extinguisher contain a solution of potassium and carbonated calcium
Source: Wikimedia Commons User: Firetech 117
Temperature decreases preventing fire from spreading
Splashing of hot oils is also prevented
Cooling
Non combustible soapy foam, isolates oxygen from burning fuel
IsolationWet chemical demonstration in action
In this section the use of wet chemical extinguisher, will be demonstrated.
Step 1: Check pressure gauge
Step 2: Check to see if extinguisher is full
Step 3: Remove the safety pin
Step 4: Check operation by pressing the activation lever
Step 5: Aim at the top of the fire for type A and at the base of the fire for type B fires
Step 6: Keep approx. 3-4 m away from the fire
Step 7: Once the fire is extinguished, check the area and retreat
Step 8: Leave the extinguisher down and away from the incident area
Track: Road we reached
Artist: Art of escapism
Used under CC licensewet chemical demonstration in action
in this section the use of wet chemical extinguisher, will be demonstrated.
step 1: check pressure gauge
step 2: check to see if extinguisher is full
step 3: remove the safety pin
step 4: check operation by pressing the activation lever
step 5: aim at the top of the fire for type a and at the base of the fire for type b fires
step 6: keep approx. 3-4 m away from the fire
step 7: once the fire is extinguished, check the area and retreat
step 8: leave the extinguisher down and away from the incident area
track: road we reached
artist: art of escapism
used under cc license<p><font size="12"><b>Wet chemical demonstration in action</b></font></p><p></p><p><font size="12">In this section the use of wet chemical extinguisher, will be demonstrated.</font></p><p></p><p><font size="12"><b>Step 1:</b> Check pressure gauge</font></p><p></p><p><font size="12"><b>Step 2:</b> Check to see if extinguisher is full</font></p><p></p><p><font size="12"><b>Step 3:</b> Remove the safety pin</font></p><p></p><p><font size="12"><b>Step 4:</b> Check operation by pressing the activation lever</font></p><p></p><p><font size="12"><b>Step 5:</b> Aim at the top of the fire for type A and at the base of the fire for type B fires</font></p><p></p><p><font size="12"><b>Step 6:</b> Keep approx. 3-4 m away from the fire</font></p><p></p><p><font size="12"><b>Step 7:</b> Once the fire is extinguished, check the area and retreat<b></b></font></p><p></p><p><font size="12"><b>Step 8:</b> Leave the extinguisher down and away from the incident area </font></p><p></p><p><font size="12"><b>Track: </b>Road we reached</font></p><p><font size="12"><b>Artist: </b>Art of escapism</font></p><p><font size="12">Used under CC license<b></b></font></p>Wet chemical demonstration in action
Step 1: Check pressure gauge
Step 2: Check to see if extinguisher is full
Step 3: Remove the safety pin
Step 4: Check operation by pressing the activation lever
Step 5: Aim at the base of the fire
Step 6: Keep approx. 3-3.5 m away from the fire
Step 7: Once the fire is extinguished, check the area and retreat
Step 8: Leave the extinguisher down and away from the incident areaUnit Summary
In this unit we have discussed about …
• Characteristics and usage of AFFF and Wet chemical Fire Extinguishersunit summary
in this unit we have discussed about …
• characteristics and usage of afff and wet chemical fire extinguishers<p><font size="12"><b>Unit Summary</b></font></p><p></p><p><font size="12">In this unit we have discussed about …</font></p><p><font size="12">• <b>Characteristics and usage of AFFF and Wet chemical Fire Extinguishers</b></font></p>Unit summary
In this unit we have discussed about …
Characteristics and usage of AFFF and Wet chemical Fire ExtinguishersEnd of unit
Thank you for completing Unit B-5-3: AFFF and Wet Chemical Fire Extinguishers!
You may now proceed to the next unit.end of unit
thank you for completing unit b-5-3: afff and wet chemical fire extinguishers!
you may now proceed to the next unit.<p><font size="12" color="#000000"><b>End of unit</b></font></p><p></p><p><font size="12" color="#000000">Thank you for completing <b>Unit B-5-3: </font><font size="12" color="#ffffff">AFFF and Wet Chemical Fire Extinguishers!</b></font></p><p></p><p><font size="12" color="#000000">You may now proceed to the next unit.</font></p>End of unit!
Congratulations! You have completed Unit B-5-3:
AFFF and Wet Chemical Fire Extinguishers!