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UL 2201

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UL 2201 2nd Edition, January 9, 2018 UL Standard for Safety Carbon Monoxide (CO) Emission Rate of Portable Generators

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Description / Abstract: This standard describes the testing procedures and requirements applicable in determining the carbon monoxide (CO) emission rate of a portable generator and also testing procedures and requirements applicable in determining the shutoff capability of a portable generator in elevated carbon monoxide (CO) environments.

These requirements apply to spark-ignited engines installed in portable generators for each fuel type recommended by the manufacturer.