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Flammable

Back

Capable of easily igniting and rapidly burning; used to describe a fuel with a flash point below 100°F (38°C).

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Flash burn

Back

The damage that can be done to eyes after even brief exposure to ultraviolet light from arc welding. Requires medical attention.

Front

Flash point

Back

The temperature at which fuel gives off enough gases (vapors) to burn.

Front

Ground

Back

The conducting connection between electrical equipment or an electrical circuit and the earth.

Front

Ground fault

Back

An unintentional, electrically conducting connection between an ungrounded conductor of an electrical circuit and the earth.

Front

Ground fault circuit interrupter (GFCI)

Back

A device that interrupts and de-energizes an electrical circuit to protect a person from electrocution.

Front

Guarded

Back

Enclosed, fenced, covered, or otherwise protected by barriers to prevent dangerous contact.

Front

Hand line

Back

A line attached to a tool or object so a worker can pull it up after climbing a ladder or scaffold.

Front

Hazard Communication Standard (HAZCOM)

Back

The Occupational Safety and Health standard that requires contractors to educate employees about hazardous chemicals on the job site.