Classification of Fire Extinguishers & Extinguishing Agents

OBJECTIVES:

Upon completion of this lesson, you will be able to:

  • Describe the Classification of Fire and Extinguishing Agents.
  • Describe the Some Common Extinguishing Agents.
  • Describe the Classification of Fire by Volume.
  • Describe the Portable Fire Extinguishers Color Code.
  • Describe the Method to use of Fire Extinguishers.
  • Describe the Section View of a Fire Extinguisher.

All Classification of Fire Extinguishers & Extinguishing Agents

All Fire Extinguishers Classification by Color Codes and Volume & Extinguishing Agents

Classification of Fire and Extinguishing  Agents:

Fire classStatus of fireMaterial of fireExtinguisher Type
ASolid

combustible

Material

Wood, Cloth, Rubber, Wool, plasticsWater
BFlammable

liquids

Benzene, Oil products, Paints, AlcoholFoam (AFFF ‘ PROTIENE)’
CFlammable

Gas

Natural gas, LPG, Methane, PropaneDry Chemical ‘ Powder, Halotron
DFire in

combustible

light metals

Magnesium,

Titanium,

Potassium etc.

Dry Powder
EFires in

Electrical

circuits/

equip.

Electrical

equipment

and

appliances.

CO2.

Halotron

FKitchen fireOils,

Cooking oils.

Wet Chemical

Extinguisher

Some Common Extinguishing Agents:

AgentContentsExtinguishing Method
WaterWaterCooling
FoamProtein Flouro Protein foam

AFFF (Aqueous Film Forming Foam)

FFFP {Film Formina Flouro Protein Foam)

Smothering
C02Carbon Dioxide GasSmothering

 

AgentContentsExtinguishing

Method

Dry ChemicalsTypeA,B,C,&EBreakdown of Chain reaction
Combustible

Metal

Extinguishers

Special dry ChemicalBreakdown of Chain reaction

Classification of Fire by Volume:

Sr.ClassificationCriteria
1Minor FireFire Extinguisher, Hose Reel
2Small Fire1 to 2 Jets.
3Medium Fire3 to 8 Jets.
4Large Fire9 to 18 jets.
5Major Fire18 + jets.

Portable Fire Extinguishers Color Code:

ClassType of FireExtinguisherColour Code
ACarbonaceous MaterialsWaterRed
BFlammable LiquidFoamCream
CFlammable GasDry Chemical Powder, HalotronBlue, Green

Portable Fire Extinguishers Color Code:

ClassType of FireExtinguisherColor code
DLight Metal FiresDry PowderBlue
EElectricalCo2Black
FKitchen FireWet ChemicalGolden

Method to use Fire Extinguisher:

P = Pull the safety pin

A =  Aim at the seat of the fire

S = Squeeze the handle

S = Sweep the fire

 

Section View of Fire Extinguisher

SECTION VIEW OF FIRE EXTINGUISHER

Dry Powder Fire Extinguisher Section View All Parts

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