Class D Fire Extinguisher Sign – FS0069

Class D Fire Extinguisher Sign – FS0069

This class D fire extinguisher sign shows the standard extinguisher pictogram above a blue “Powder M28” label and a use-on chart, confirming that the extinguisher below it is a specialist dry powder charge for alkali metal fires (Class D) only. The chart on this class D fire extinguisher sign clearly marks that the extinguisher must not be used on wood, paper, and textiles, flammable liquids, or gaseous fires.

Where this class D fire extinguisher sign is used

Unlike the general-purpose powder fire extinguisher sign, which covers Class A, B, and C fires plus live electrical equipment, this class D fire extinguisher sign identifies a specialist extinguisher rated for alkali metal fires alone, since ordinary extinguishing agents can react violently with burning metals. Crew should always check the use-on chart before selecting an extinguisher, as picking up the wrong type in a metal fire can make the situation significantly worse.

This sign is fixed directly to or beside the extinguisher it identifies, typically in workshops, battery rooms, and other spaces where alkali metals such as sodium, potassium, or magnesium are stored or handled. Class D fires are comparatively rare aboard most vessels, which makes correct identification of this specialist extinguisher even more important, since crew may be less familiar with it than with general-purpose types.

On vessels carrying multiple extinguisher agent types across different spaces, this class D fire extinguisher sign lets crew confirm at a glance that they have picked up the correct extinguisher for the fire in front of them, rather than relying on memory or the extinguisher’s colour alone. This matters most in the first seconds of a fire, when using the wrong agent wastes time and can make the situation worse.

This sign is checked during SOLAS fire safety surveys, where the surveyor confirms that extinguishers are correctly identified and that their agent type matches what is recorded on the vessel’s fire control plan and equipment register. Correct identification signage is a standard item reviewed during these inspections, since crew safety in an emergency depends on picking up the right extinguisher without hesitation.

New crew joining a vessel should be shown the difference between extinguisher agent types during familiarisation, including this specialist metal-fire extinguisher, since selecting the wrong extinguisher under pressure is a genuine and avoidable risk. This sign is commonly found alongside other extinguisher identification signage such as the powder fire extinguisher sign and the BC powder fire extinguisher identification sign, so a vessel’s full range of extinguisher types is clearly and consistently distinguished.

Extinguishers and their identification signage are reviewed during routine equipment audits, and this sign should be checked at the same time to confirm it remains legible and correctly matched to the extinguisher it is fixed to. An extinguisher swapped during a refill or service and left with the wrong identification sign is a genuine hazard, since crew trust this sign to tell them what is inside.

Because picking up the wrong extinguisher can make a fire worse rather than better, keeping this sign accurate and legible is as important as keeping the extinguisher itself charged and in date.

Technical specifications:
SKU: FS0069
Compliant: IMO Resolution A.1116(30)

• Fire-retardant marine-grade material
• Available in non-glow vinyl, general purpose glow, or DNV Wheelmark certified Class C / Class D photoluminescent film
• Waterproof and saltwater resistant
• Glossy wipe-clean finish
• Peel-and-stick installation, no tools or drilling

Supplied ready to apply directly to or beside the class D fire extinguisher. Available in the standard size shown above.

This sign is produced to IMO fire control symbol specifications for consistent recognition across international fleets. Need a different size or a custom layout? Contact us for a quote.