Hazard Signs – Understanding Hazard Safety Signs

Hazard safety signs play an essential role in the management of your safety, warning your staff and visitors of any potential dangers on the premises.

Hazard signs have a yellow triangle with a black pictogram or symbol on a yellow background with a black border. The yellow part has to be at least 50% of the area of the sign. Many of the hazard symbols currently used have been updated to bring them in line with the new ISO 7010 legislation.

The three different types of hazard signs

There are typically three different types of Hazard sign:

  • Danger
  • Warning
  • Caution

Each sign is categorised as the above depending on the severity of the risk. For example, signs with the word “Danger” are used where the risk is deemed to be higher than those signs using the word caution.

What do Danger Signs mean?

These are used for a high level of risk which, if not avoided, may result in death or serious injury.

They are typically only used in situations that have a high probability of death or severe injury. Danger signs should not be used for situations covering potential property damage unless personal injury risk is present.

Examples of Danger Signs

Danger Deep Water Signs

1284-Danger-Deep-Water

Hazardous Waste Signs

Danger hazardous waste storage

Warning Signs

Warning signs should be used for a medium level risk. Medium-level risk signs are signs that if not avoided, may result in injury or death.

Warning signs should be used in hazardous situations which have some probability of death or major injury.

Warning signs should not be used for situations covering potential property damage unless personal injury risk is a possibility.

Examples of warning signs

Overhead Cable Signs

2813 - warning overhead cables

Electric Fence Signs

1861 - Warning Electric Fence

Caution Signs

Caution signs should be used for a low-level risk which, if not avoided, may result in a minor injury.

These signs should be used in hazardous situations which may result in a minor injury.

They should not be used when there is a possibility of death or severe injury. These signs should be used to warn of the lowest hazardous risks.

Examples of caution signs

Moving Vehicle Signs

Caution moving vehicles sign

Heavy Machinery Advice Signs

1239 Caution Never operate this machine without the proper guards in position sign

See our article: Safety Signs, Symbols and Colour Codes – a Simple Guide for more information on the use of safety symbols and graphical images.