Red Line
February 24, 2023
UL 2201
UL Red Line
Edition 2
Published Date: February 24, 2023
ANSI Approved: February 24, 2023
Scope
022010-000000-0000001 Scope
1.1 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.
1.2 These requirements apply to spark-ignited engines installed in portable generators for each fuel type recommended by the manufacturer.