Class Iv Laser Warning Sign
Class iiia beam irradiance 2 5 mw cm 2 class iiib and class iv lasers.
Class iv laser warning sign. White back ground red laser symbol with black outline and black lettering see appendix iii 6 4. Note that under ansi z 136 1 criteria area posting is required only for class iiib and class iv lasers. These lasers may ignite combustible materials and thus may represent a fire risk. A class 3b laser can cause eye injury.
The more powerful the laser the greater the chance of injury. All signs are available in your choice of pvc plastic magnetic or paper peel stick. Class 4 is currently the most dangerous class with lasers in this category being able to cause severe injuries for the skin and eyes. By definition a class 4 laser can burn the skin or cause devastating and permanent eye damage as a result of direct diffuse or indirect beam viewing.
Ansi caution class iv laser visible and invisible sign ace 4246 laser portrait osha laser radiation class sign with symbol. There is no upper limit for class 4 this is the most hazardous laser classification. Special sign holders and custom wording on laser signs. Require the ansi danger sign format.
The lia laser institute of america being the publisher of those standards. Signs are available in blank formats standard preprinted signs and special print signs for all classes of lasers. Us made signs and labels. Class 4 warning sign.
In a nutshell class 4 laser safety requirements are as follow. The fda recognizes four major hazard classes i to iv of lasers including three subclasses iia iiia and iiib. Class 4 is the same as the roman numeral class iv you may see on some lasers labels. For visible light lasers class 4 lasers have an output power 500 milliwatts and above.
The higher the class the more powerful the laser is and the greater the. These signs are available in various sizes and materials including magnetic sheets plastic laminated paper and illuminated signs. A class 3b laser can be a distraction glare or flashblindness hazard for pilots and drivers. So what are the class 4 laser safety requirements.
At this website we primarily use the arabic numerals for convenience. Laser warning signs we provide laser warning signs for use in all laser environments. This 10x14 plastic sign is used for all entryways into a class 4 laser controlled area operating laser systems that exceed the applicable maximum permissible exposure mpe limit for irradiance. Class 4 laser controlled area danger signs and labels are compliant with ansi 136 1 laser safety standards.
Class iv laser found in.