UL 62841-2-4
Electric Motor-Operated Hand-Held Tools, Transportable Tools and Lawn and Garden Machinery – Safety – Part 2-4: Particular Requirements for Hand-Held Sanders and Polishers Other Than Disc Type
standard by Underwriters Laboratories, 11/30/2015
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UL 60079-25
Explosive Atmospheres – Part 25: Intrinsically Safe Electrical Systems
standard by Underwriters Laboratories, 11/20/2015
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