Blake Fire and Security Systems

Which Fire Extinguisher Colours Mean What: A Simple Guide

Date: 25 February 2025

Fire extinguisher colours are crucial because they indicate the types of fires each extinguisher can handle. This guide explains which fire extinguisher colours mean what, helping you select the right one for any fire emergency. Understanding these colours is crucial.

Key Takeaways

  • Understanding fire extinguisher colours is crucial for identifying the right type for specific fires, thereby enhancing safety and compliance in various environments.
  • In the UK, fire extinguishers are colour-coded into five categories: Red, Cream, Blue, Black, and Yellow. Each category represents a different fire class to ensure an effective response during emergencies.
  • Adherence to fire safety regulations, such as the Regulatory Reform (Fire Safety) Order 2005, is essential for businesses, including schools, to avoid legal consequences and ensure adequate fire protection.

Understanding Fire Extinguisher Colours

Understanding fire extinguisher colours helps identify the appropriate extinguisher for various types of fires, enhancing safety. In the UK, the colour coding of fire extinguishers was standardised in 1997 to improve safety and compliance across various environments, including educational institutions. Standardisation allows for quick recognition and use of the correct extinguisher during emergencies, potentially saving lives and minimising damage.

Fire extinguishers are colour-coded to indicate the specific types of fire they can combat, ensuring an appropriate response during emergencies. Educational institutions must comply with fire extinguisher colour codes to guarantee the safety of staff and students. This approach aids in emergency situations, supports legal compliance, and enhances overall fire safety.

The Five Fire Extinguisher Colours

Fire extinguishers are classified by colour, denoting the specific types of fires they can extinguish. In the UK, five colours are used for fire extinguishers: Signal Red, Blue, Yellow, Black, and Cream. Each colour corresponds to a particular type of fire, such as those involving flammable liquids, electrical equipment or cooking oils, ensuring that the correct extinguisher is used for the correct fire class.

For instance, CO2 fire extinguishers, marked with black labels, are ideal for electrical and Class B fires. On the other hand, water fire extinguishers, which are marked with bright red labels, are suitable for Class A fires involving flammable solids like wood and paper. Recognising these distinctions is key to effective fire safety management.

Armed with this foundational knowledge, we can explore each colour and its specific applications. This helps us identify the right extinguisher and understand its usage nuances in different environments.

Red: Water Fire Extinguishers

Water fire extinguishers, identified by their bright red colour, are specifically designed for Class A fires, which include materials like wood, paper, and textiles. They are commonly found in offices, schools, nurseries, hospitals, domestic dwellings, and warehouses. Their primary function is to release water under high pressure to extinguish flames, making them highly effective against combustible materials.

However, water fire extinguishers should not be used on electrical fires, kitchen fires or fires involving flammable gas and liquids. Using water on such fires can make the situation worse. Potentially leading to an electric shock or spreading the fire further. It’s crucial to assess the fire risk and choose the correct fire extinguisher type based on the specific environment and potential fire hazards.

Knowing how water fire extinguishers work and their common applications ensures their effective and safe use. Recognising their limitations and strengths helps make informed decisions to enhance fire safety.

Cream: Foam Fire Extinguishers

Foam extinguishers, identified by cream labels, are primarily effective against Class A and B fires. They are commonly needed in settings such as offices, schools, hospitals, and warehouses. Foam extinguishers can be used on materials like paper and wood and flammable liquids such as petrol. Their versatility makes them suitable for various environments where both solid and liquid fires may occur.

However, foam extinguishers should not be used for electrical fires, kitchen fire or fires involving flammable metals. Knowing these limitations ensures the appropriate use of foam extinguishers, minimising risks and enhancing safety.

Blue: Dry Powder Fire Extinguishers

Dry powder fire extinguishers, identified by blue labels, are effective for flammable solids, liquids and gases, making them suitable for Class A, B and C fires. These extinguishers can also be used for electrical fires up to 1000v and fires involving flammable metals with specialist extinguishers. Their versatility makes them a valuable addition to many fire safety arsenals.

However, the powder from these extinguishers can be harmful if inhaled, making them unsuitable for enclosed spaces. Powder dispersion can lead to inhalation risks and difficulty cleaning up the mess. Therefore, while dry powder extinguishers are highly effective, they must be used with caution, particularly in confined areas.

Dry powder extinguishers create a thick barrier between the fuel and oxygen to extinguish fires. Knowing their operation and limitations ensures effective and safe use, minimising health risks and maximising fire safety.

Black: Carbon Dioxide (CO2) Fire Extinguishers

Carbon dioxide fire extinguishers, marked with black labels, are effective for electrical fires and flammable liquid fires. They are particularly effective for fires involving electrical equipment. These extinguishers are recommended for use in modern offices, kitchens and server rooms where electrical equipment is prevalent.

For premises with electrical equipment, UK regulations state that at least one 2kg CO2 extinguisher is necessary. CO2 fire extinguishers can also be used on Class A fires but are often complemented by foam or water extinguishers in commercial settings.

Knowing their specific applications and limitations ensures effective use to enhance fire safety.

Yellow: Wet Chemical Fire Extinguishers

Wet chemical fire extinguishers, identified by their bright yellow labels, are specifically designed for combating Class F fires, which typically involve cooking oils and fats. These extinguishers are mainly found in professional kitchens, restaurants, and canteens, making them vital for fire safety in food preparation environments.

While wet chemical extinguishers are effective against Class F fires, they can also be used for Class A fires. However, businesses usually prefer foam or water extinguishers for Class A fires. Knowing their specific applications ensures the effective and safe use of wet chemical extinguishers in appropriate environments.

Legal Requirements and Compliance

In the UK, non-domestic premises must adhere to the Regulatory Reform (Fire Safety) Order 2005 regarding fire extinguishers (see GOV.UK). Blake Fire and Security assesses fire risks and provides professional guidance on the appropriate extinguishers for different business environments. Compliance with relevant legislation and insurance requirements is a critical aspect of their services.

Blake Fire and Security can help you find reliable fire risk assessments. These assessments will help you understand the specific extinguishers you need and where to position them. Foam fire extinguishers are commonly used in offices, schools, and hospitals. Blue dry powder extinguishers are often recommended for use in garage forecourts and commercial boiler rooms. While, CO2 extinguishers are common in commercial settings with electrical installations.

Failure to comply with fire extinguisher regulations can lead to serious consequences, including large fines, imprisonment, and potential issues with insurance claims. Knowing these requirements ensures businesses remain compliant and prepared for emergencies.

Choosing Blake Fire and Security

Blake Fire and Security offers customised fire extinguisher solutions tailored to the specific needs and budgets of businesses. We are BAFE accredited through the NSI Gold scheme, ensuring compliance with industry standards for fire safety. Our team includes trained experts in the design, installation and maintenance of your fire protection equipment.

Choosing Blake Fire and Security provides you business with a partner in your fire safety management. A partner that earns your trust by providing an excellent service. Year after year!

Comprehensive Fire Protection Services

Blake Fire and Security works from your fire risk assessment (FRA) and our surveys to recommend appropriate extinguisher types and placements. Many customers have praised the timely delivery and effective commissioning of fire extinguishers as contributing to their satisfaction.

One client noted that we immediately replaced a damaged item, which showcases our proactive service. At Blake Fire and Security, we offer comprehensive fire extinguisher protection tailored to your FRA recommendations and budgets.

Choosing Blake Fire and Security gives reassurance to schools regarding their fire extinguishers. Our NSI Fire Gold Scheme approval qualifies us for the supply, positioning, commissioning and maintenance of portable fire extinguishers. Blake Fire and Security offers ongoing maintenance services, including monthly inspections and annual professional servicing to ensure extinguishers meet British Standards. We also handle the replacement of extinguishers due to age, usage or damage. So you can be certain of continuous fire protection and compliance

School Client Says

Marian Brown, Office Manager at Wethersfield C of E Primary School, was delighted with the Fire Extinguisher services received. She said:

"What a credit your engineers are to your company, whether fire extinguishers, light or alarms. I never have any issues with invoices, booking in visits, early or late, your engineers do not spend all their time with us on their phones, they usually don’t even have a coffee - although we do ask. They bring all the equipment they need for the job, are smart and clean."

How to Get Started with Blake Fire and Security

It's easy; just contact Blake Fire and Security for a free quote or consultation. We operate from our HQ in Southend-on-Sea, Essex.

For enquiries, call Blake Fire and Security at 01702 447800 via email at info@blakefire-security.co.uk.

Fire Extinguisher colours round-up

Understanding fire extinguisher colours and their specific applications is crucial for effective fire safety management. By recognising the different fire extinguisher colours and their uses, individuals and businesses can ensure they are prepared for various fire emergencies, enhancing overall safety and compliance.

Types of Fire Extinguishers and their uses

The types of extinguishers and their appropriate uses:

  1. Water (Red): For Class A fires (solid materials like wood, paper and textiles).
  2. Foam (Cream): For Class A and B fires (flammable liquids).
  3. Dry Powder (Blue): For Class A, B, and C fires (flammable gases).
  4. CO2 (Black): For Class B fires and electrical fires.
  5. Wet Chemical (Yellow): For Class F fires (cooking oils and fats).

Blake Fire and Security provides comprehensive fire protection services, ensuring that clients receive tailored solutions that meet legal requirements and enhance safety. Contact Blake Fire and Security today to ensure your premises are equipped with the correct fire extinguishers and maintain compliance with fire safety regulations.

Frequently Asked Questions

What are the five fire extinguisher colours used in the UK?

The five fire extinguisher colours used in the UK are Signal Red, Blue, Yellow, Black, and Cream, with each colour indicating a specific type of fire it can extinguish. It is essential to understand these colours for effective fire safety and prevention.

Can water fire extinguishers be used on electrical fires?

Water fire extinguishers should not be used on electrical fires as they are only suitable for Class A fires involving solid materials. Using water on electrical fires poses a significant risk of electric shock.

What types of fires are foam fire extinguishers suitable for?

Foam fire extinguishers are suitable for Class A fires, involving solid combustible materials, and Class B fires, which involve flammable liquids such as petrol. This makes them versatile for a range of fire scenarios.

Are dry powder fire extinguishers safe to use in enclosed spaces?

Dry powder fire extinguishers are not safe for use in enclosed spaces, as they pose a risk of inhalation and complicate cleanup efforts. It is advisable to use alternative extinguishing agents in such environments.

What should businesses in the UK do to comply with fire extinguisher regulations?

To comply with fire extinguisher regulations, businesses in the UK must conduct a Fire Risk Assessment and ensure they possess the appropriate fire extinguishers tailored to their specific risks. Seeking assistance from professionals, such as Blake Fire and Security, can ensure compliance with all relevant legislation and insurance requirements.

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