Safety Signs and Symbols – A Short Guide

Safety signs and symbols are important safety communicating tools. They help to indicate various hazards that present in plant site or workplace. At the same time, they warn workers to always keep watching on those hazards by giving required information and safety instructions.

Safety signs and symbols do not only inform the presence of hazards but also keep workers’ safety awareness. It is very important in reducing accidents at workplace and in chemical plants.

To get the most out of health and safety signs and symbols, you should choose the right one for each work location in plant site. Each work area needs different workplace health and safety signs and symbols. It is because each work area has difference type of hazard.

Safety Signs and Symbols Standards

Safety signs and symbols consist of messages, words and pictorial symbol with variety of sizes, shapes and colors. All the shapes and colors are standardized. Each shape has different meaning and each color reflects specific meaning.

health-and-safety-signs-and-symbolsUsing the standardized health and safety signs and symbols will make them understandable and overcome language barriers.

The shapes of workplace health and safety signs are triangles, circles and squares or rectangles.

a. Triangles:  indicates caution (potential hazards) or warning (definite hazards), for example toxic gas and electric shock.

b. Circles: reflects mandatory or recommended actions are normally used to depict mandatory or recommended actions, for example wearing eye goggles and safety hard hats.

c. Squares or rectangles: shows information, i.e. general information and emergency information (first aid, fire fighting).

d. Circle with a 45° diagonal slash across the middle from the upper left to the lower right: point out forbidden or prohibited actions.

The colors used in workplace safety signs and symbols are red, yellow, blue and green.

a. Red signs: designates emergency devices like fire fighting equipment, or to emphasize unsafe or forbidden actions.

b. Yellow: notifies workers to take caution and be alerted of hazards, reducing necessary risks.

c. Blue: shows a particular action or behavior, for example instruction to wear personal protective equipment.

d. Green: designates the location of emergency measures like first aid kits, evacuation routes, fire exits, escape ladders, or assembling point.

To learn more in detail about workplace safety signs and symbols, you can download safety signs and symbols reference based on ANSI standard Z535.4 2007.

Safety Symbol and Signs ANSI

Safety Symbols Guide

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