Signs, warning lasers

Post warning signs when unusual hazards, such as radiation, laser operations, flammable materials, biologic hazards, or other special problems exist. 

When the entire beam path from a Class IIIB or Class IV laser is not sufficiently enclosed or baffled to ensure that radiation exposures do not exceed the maximum permissible exposure, a laser-controlled area is required. During periods of service, a controlled area may be established on a temporary basis. Two controls are required for both Class IIIB and Class IV installations (1) posting with appropriate laser warning signs, and (2) operated by qualified and authorized personnel. 

Laboratory security system Specialized training prior to access Door interlocks for laser laboratories Warnings and signs Personal protective equipment... 

Access and eye protection. Laser laboratories must have restricted access, especially when the device is in operation. The standard laser warning sign must be posted outside the laboratory, and all individuals entering the room must have adequate eye protection be-... 

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