Fire Extinguisher Types And Colours Australia | FireRescue

Fire Safety Essentials

Understanding Fire Extinguisher Types in Australia

Fire extinguishers are classified by the type of fire they are designed to put out. In Australia, these classifications follow the Australian Standards and are grouped by letters to indicate the fire classes they cover. Knowing these classes is your first step to choosing the right extinguisher.

Class A: Ordinary Combustibles

Class A fires involve solid materials such as wood, paper, fabric, and some plastics. Extinguishers designed for Class A fires usually contain water or foam, which cools the fire and soaks the material to prevent re-ignition.

Class B: Flammable Liquids

These fires involve flammable liquids like petrol, oils, solvents, and paints. Extinguishers with foam, dry chemical powder, or carbon dioxide are used here to smother the fire.

Class C: Flammable Gases

Class C fires involve flammable gases such as propane, butane, or natural gas. Dry chemical extinguishers are suitable for these fires, but it is important to shut off the gas supply if safe to do so.

Class E: Electrical Fires

Fires involving electrical equipment require extinguishers that do not conduct electricity, such as carbon dioxide or dry chemical powder types. Never use water-based extinguishers on electrical fires.

Class F: Cooking Oils and Fats

These fires involve cooking oils and fats, typically in kitchens. Wet chemical extinguishers are designed specifically for this class, cooling the oil and creating a barrier to prevent re-ignition.

It’s worth noting that fire classes in Australia do not include a Class D for metal fires, which are rare in residential and commercial settings. However, in industrial environments where combustible metals are present, specialised extinguishing agents and procedures apply. For most Australian homes and workplaces, understanding Classes A, B, C, E, and F covers the vast majority of fire risks.

In addition to the primary fire classes, it is crucial for users to understand that different environments might present unique challenges. For instance, agricultural or mining operations might encounter specific fire hazards requiring tailored safety measures beyond standard extinguisher types. Consulting with fire safety professionals in such cases ensures that fire protection is appropriately matched to risk.

Fire Extinguisher Colours in Australia

In Australia, fire extinguisher bodies have a standard red colour, but the label or band colour around the top indicates the type of extinguishing agent inside. This colour-coding helps users quickly identify the correct extinguisher for the fire class.

Red with White Band: Water Extinguishers

These are water-based extinguishers suitable for Class A fires. They should not be used on electrical or flammable liquid fires due to the risk of spreading the fire or causing electric shock.

Red with Cream Band: Foam Extinguishers

Foam extinguishers are effective on Class A and Class B fires. The cream band helps distinguish them from other types at a glance.

Red with Blue Band: Dry Chemical Powder Extinguishers

These extinguishers are multipurpose, suitable for Class A, B, and C fires. They use a fine powder to interrupt the chemical reaction of fires and are common in homes and workplaces.

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Red with Black Band: Carbon Dioxide (CO2) Extinguishers

CO2 extinguishers are best for Class B and electrical fires. They release carbon dioxide gas that displaces oxygen around the fire without leaving residue, making them suitable for sensitive electrical equipment.

Red with Yellow Band: Wet Chemical Extinguishers

Wet chemical extinguishers are designed for Class F fires involving cooking oils and fats. They cool the fire and create a soapy layer that seals the surface to stop oxygen feeding the flames.

The use of these colour bands is mandated by Australian Standards to ensure consistency and safety. This system allows even those unfamiliar with fire extinguishers to make quick decisions during emergencies. In addition to the colour bands, extinguisher labels provide detailed instructions and safety information, which should always be read and understood before use.

It’s also important to note that while the body of the extinguisher remains red, these contrasting bands provide a universal visual cue that transcends language barriers, which is especially useful in multicultural environments and workplaces with diverse staff. This standardisation supports quick recognition and reduces the risk of incorrect extinguisher use.

How to Choose the Right Extinguisher

Selecting the correct fire extinguisher depends on the environment and the types of fire risk present. For homes, a multipurpose dry chemical extinguisher covers most situations. In workplaces with kitchens, a wet chemical extinguisher is essential.

Always check the extinguisher label to confirm the fire classes it covers. Regular maintenance and servicing ensure it will work effectively when needed.

Beyond just choosing the right extinguisher type, consider the size and portability. Smaller extinguishers may be easier to handle but offer less extinguishing capacity, while larger units provide more agent but can be heavier and harder to operate. Assess your specific needs, including the layout of the space and potential fire hazards, to determine the most practical extinguisher to have on hand.

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Training is another important factor. Knowing how to operate an extinguisher correctly can make all the difference in an emergency. Many fire safety organisations and local fire departments offer training sessions to familiarise individuals with extinguisher use, including the PASS technique: Pull, Aim, Squeeze, and Sweep.

In addition, consider the placement of extinguishers strategically throughout your property. Placing them near high-risk areas such as kitchens, workshops, and garages improves accessibility. Avoid obstructing extinguishers with furniture or storage items, and ensure they are mounted at a visible height for quick reach during an emergency.

For businesses, conducting a fire risk assessment can help determine the number and types of extinguishers required. This assessment takes into account the types of materials present, processes conducted, and occupancy levels. Engaging professional fire safety consultants can provide tailored recommendations that meet Australian regulations and ensure optimal safety.

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If You Only Do Five Things

First, identify the fire risks in your home or workplace to know which extinguisher type you need. Second, make sure the extinguisher’s colour band matches the fire classes you might encounter. Third, learn how to use your extinguisher safely before an emergency happens. Fourth, never use a water-based extinguisher on electrical or flammable liquid fires. Lastly, get your extinguishers inspected annually by a qualified professional to ensure they remain in good working order.

Common Mistakes to Avoid

One common mistake is using the wrong type of extinguisher on a fire, which can worsen the situation. For example, using water on a grease fire or electrical fire is dangerous. Another error is not maintaining or regularly inspecting extinguishers, leading to failure in an emergency. Avoid placing extinguishers in hard-to-reach areas or where they can be easily damaged. Lastly, don’t ignore local fire safety regulations and always follow official advice during fire emergencies.

Additionally, relying solely on fire extinguishers without having a comprehensive fire safety plan can be a serious oversight. Fire extinguishers are a critical tool but should be part of a layered approach including smoke alarms, fire blankets, clear exit routes, and emergency communication plans. Neglecting these elements can increase risk and reduce overall safety.

Fire Extinguisher Maintenance and Safety Tips

Regular checks ensure your extinguisher will work when needed. Look for clear labels, no leaks or rust, and a fully charged gauge. Keep extinguishers mounted in visible, easily accessible locations. Replace or service units after use or if damaged. Remember, extinguishers are only part of fire safety—always have a clear evacuation plan and follow local fire service guidance.

It is also important to be aware of the extinguisher’s expiry date and pressure levels. Extinguishers lose effectiveness over time and with exposure to temperature changes. Many extinguishers come with a pressure gauge that should always be in the green zone. If it is in the red, the unit needs servicing or replacement immediately.

In workplaces, compliance with Australian workplace health and safety regulations requires regular fire safety audits, including extinguisher maintenance. Employers must ensure extinguishers are suitable for the risk and accessible to all employees. Fire drills and extinguisher training should be part of ongoing safety programs.

When servicing extinguishers, always use accredited professionals who follow Australian Standards for testing, refilling, and recharging. Proper documentation of maintenance activities is essential for compliance and insurance purposes. Keep records of inspections, servicing dates, and any repairs or replacements.

For further information, visit FireRescue.com.au or contact your local fire authority.