Australian Fire Extinguisher Types

Introduction

Fire extinguishers are essential safety tools designed to combat different types of fires, classified by the fuel source (fire classes). Selecting the appropriate extinguisher type for your home or business is crucial for effective fire management and safety compliance.

Classes of Fires

Class A: Fires involving combustible materials like wood, paper, and fabric.
Class B: Fires caused by flammable liquids such as petrol, turpentine, or paint.
Class C: Fires involving flammable gases like LPG, hydrogen, butane, or methane.
Class D: Fires involving combustible metals such as magnesium, aluminum, or potassium.
Class E: Fires involving electrical equipment. Once the electrical source is removed, the fire changes class.
Class F: Fires caused by cooking oils, typically found in commercial kitchens.

Types of Fire Extinguishers

Water Extinguishers

Use: Effective on Class A fires (combustible materials like wood, paper, and fabric).
Do Not Use: On Class B (flammable liquids) or Class C (flammable gases) fires.
Contents: Water.
Identification: All red cylinder with a red band.
Important: Can spread flammable liquids or create a shock hazard on electrical fires.

Dry Chemical Powder Extinguishers (ABE)

Use: Effective on Class A, B, and E fires (combustible materials, flammable liquids, and electrical equipment).
Do Not Use: On Class D (combustible metals) or Class F (cooking oils) fires.
Contents: Monoammonium phosphate.
Identification: All red cylinder with a white band.
Important: Interrupts the chemical reaction of the fire triangle.

Carbon Dioxide (CO2) Fire Extinguishers

Use: Effective on Class B and E fires (flammable liquids and electrical equipment).
Do Not Use: On Class A fires.
Contents: Carbon dioxide.
Identification: All red cylinder with a black band.
Important: Non-conductive and non-corrosive, ideal for electrical equipment.

Foam Fire Extinguishers

Use: Effective on Class A and B fires (combustible materials and flammable liquids).
Do Not Use: On Class F (cooking oils) fires.
Contents: Foam.
Identification: All red cylinder with a blue band.
Important: Forms a layer over the burning substance to cut off oxygen

Wet Chemical Fire Extinguishers

Use: Effective on Class F fires (cooking oils) and Class A fires in commercial kitchens.
Do Not Use: On Class B, C, D, or E fires.
Contents: Potassium solution.
Identification: All red cylinder with a yellow band.
Important: Smothers the fire and prevents re-ignition.

Regular inspection and testing in accordance with AS1851 every six months is crucial to ensure that fire extinguishers are in optimal working order. This standard mandates that fire extinguishers undergo thorough checks to verify their functionality and readiness in case of an emergency. Most fire extinguishers will require pressure testing or replacement five years after their manufacture date to maintain compliance and effectiveness. Our team of certified technicians is equipped to perform these essential services, ensuring your fire safety equipment meets all Australian standards. Contact us through the link below to arrange for AS1851-compliant testing by one of our experienced professionals.

Understanding the different types of fire extinguishers and their appropriate uses is crucial for ensuring safety in your home or business. If you need more information, a consultation to determine the best fire protection solutions for your site, or to arrange regular testing, contact us today. Our team of experts is ready to help you safeguard your assets and properties with comprehensive fire protection services.