Warning Signs
The purpose of a laser area warning sign is to rapidly convey a visual hazard-alerting message that:
- Warns of a laser hazard in the area
- Indicates specific policies related to laser controls
- Indicates the severity of the hazard
- Instructs appropriate actions to take to reduce the hazard
The following warning signal words are defined below per ANSI Z535.2-1998:
DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. This signal word must be limited to the most extreme conditions.
The signal word "Danger" shall be used with all signs and labels associated with all Class 3R, Class 3B, and Class 4 lasers and laser systems.
CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.
The signal word "Caution" shall be used with all signs and labels associated with Class 2 and Class 2M lasers and laser systems that do not exceed the applicable MPE for irradiance.
NOTICE indicates a statement of facility policy as the message relates directly or indirectly to the safety of personnel or the protection of property.
The signal word "Notice" shall be used on signs posted outside a temporary laser controlled area.
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