scope:

This European Standard specifies the safety, design, construction, and performance requirements and testing for electronic pressure and/or flow rate regulators for burners and appliances burning one or more gaseous fuels, hereafter referred to as 'regulators'. This European Standard is applicable to: - regulators with declared maximum inlet pressures up to and including 500 kPa with nominal connection sizes up to and including DN 250; - regulators which use auxiliary energy; - regulators, which function by controlling a gas outlet pressure or a gas flow rate; - regulators with a modular structure approved as a unit; - regulators intended for gas appliances to be installed in the open air and exposed to the environment. This European Standard does not cover: - regulators connected directly to a gas distribution network or to a container that maintains a standard distribution pressure; - electronic fuel/air ratio controls (see EN 12067-2).