Hazard symbol

Hazard symbols are recognizable symbols designed to warn about hazardous or dangerous materials, locations, or objects, including electric currents, poisons, and other potential threats. These symbols are internationally recognized and used in various contexts such as chemical safety and hazard identification.

History

The use of hazard symbols began in the early 20th century to identify potential risks in both industrial and public settings. The symbols were initially used in the chemical industry and have since been adopted by various other industries and regulatory bodies.

Types of Hazard Symbols

There are several types of hazard symbols, each representing a different type of risk or hazard. These include:

• Chemical hazard symbols: These symbols are used to indicate the presence of chemicals that can cause harm to humans, animals, or the environment. They are often used on labels and safety data sheets in the chemical industry.

• Biohazard symbols: These symbols are used to signify the presence of biological substances that pose a threat to health, such as infectious diseases.

• Radiation hazard symbols: These symbols are used to indicate the presence of radioactive materials or radiation-emitting devices.

• Explosive hazard symbols: These symbols are used to indicate the presence of explosive materials.

International Standards

Hazard symbols are standardized internationally through various regulatory bodies. The Globally Harmonized System of Classification and Labelling of Chemicals (GHS) is one such body that provides a comprehensive approach to defining health, physical and environmental hazards of chemicals, and communicating information on labels and safety data sheets.

See Also

• Safety symbols
• Warning sign
• Hazard pictograms

References

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  GHS pictogram skull
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  ISO 7010 W021
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  GHS pictogram flamme
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  NFPA 704 example
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  HMIS III - Diesel Fuel
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  Hazard F
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  WHMIS Class B
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  ISO 7010 W001