This document provides information on fire extinguishers, including their proper use and maintenance. It discusses the different types of fire extinguishers classified by the type of fire (Classes A-D) they can extinguish. The main fire extinguishing agents are also outlined, noting which classes each agent is approved for. Proper fire extinguisher placement, annual maintenance checks, and a PASS method for use (Pull, Aim, Squeeze, Sweep) are reviewed to ensure fire extinguishers are always ready and used correctly.

1. PRESENTED BY
PRASAD GHARE

2. Introduction
 Fire Extinguisher are used for control small fire
 Typically, a fire extinguisher consists of a hand-held
cylindrical pressure vessel.
 Locate and identify them so everyone can access
them.
 Generally it looks like as shown in image.
 Dry chemical, Nitrogen is typically used fire
extinguishing agents.

3. Care Should be taken
 Must maintain in a fully charged and operable
condition
 Must keep in their designated places at all times
except during use
 Must conduct an annual maintenance check
 Must record the annual maintenance date and
retain this record for one year after the last entry or
the life of the shell, whichever is less

4. Fire Extinguisher Classes
Class A
 Ordinary combustibles
(wood, cloth, paper)
Class B
 Flammable liquids, gases,
greases
Class C
 Energized electrical
equipment
Class D
 Combustible metals
B C D
Combustible
Metals
Flammable
Liquids
Electrical
Equipment
A
Ordinary
Combustibles

5. Fire Extinguishing Agents
• It extinguish the fire by taking
away the oxygen element
from fire.
• Criteria for Use
1. Only For – Class A
2. Should not For – Class B,C,D
Carbon Dioxide
• It extinguish fire by taking
away the oxygen element of
the fire triangle and also be
removing the heat with a
very cold discharge.
• Criteria for Use
1. Only For – Class B,C,D
2. Should not For – Class A
 Dry Chemical
• It extinguish the fire
primarily by interrupting
the chemical reaction of the
fire triangle.
• Criteria for Use
1. For – Class A,B,C,D
 Wet Chemical
• It removing the heat of the fire
triangle and prevents re-ignition
by creating a barrier between the
oxygen and fuel elements.
• Criteria for Use
1. Only For – Class A,K (Kitchen)
 Water and Foam

6. Fire Extinguishing Agents
• It include the halon agents as
well as the newer and less
ozone depleting halocarbon
agents. They extinguish the
fire by interrupting the
chemical reaction.
• Criteria for Use
1. Only For – Class A,B,D
2. Should not For – Class C
Dry Powder
• Dry Powder extinguishers are
similar to dry chemical except
that they extinguish the fire by
separating the fuel from the
oxygen element or by
removing the heat element
from fire.
• Criteria for Use
1. Only For – Class D
2. Should not For – Class A,B,C
Water Mist
• It is a recent development that
extinguishes the fire by taking
away the heat element of the
fire triangle. They are an
alternative to the clean agent.
• Criteria for Use
1. For – Class A,C
2. Should not For – Class B,D
 Cartridge Operated Dry
Chemical
• Cartridge Operated fire
extinguishers extinguish the fire
primarily by interrupting the
chemical reaction of the fire
triangle.
• Criteria for Use
1. For – Class A,B,C,D
Clean Agent

7. Fire Extinguisher Guide
 Color code assigned as per extinguishing
agent used
 For which class which extinguisher used is
shown in image.
 Example: We cant use water extinguisher
on Class E ( Electrical Equipment's)

8. How to use Fire Extinguisher
PULL
AIM
SQUEEZE
SWEEP
P
A
S
S
Pull the pin. This will also break the tamper seal.
Aim low, pointing the extinguisher nozzle (or its horn or hose) at the base of the fire. NOTE: Do not touch the
plastic discharge horn on CO2 extinguishers, it gets very cold and may damage skin.
.
Squeeze the handle to release the extinguishing agent.
Sweep from side to side at the base of the fire until it appears to be out.
Watch the area. If the fire re-ignites, repeat steps 2 - 4.
1
2
3
4