This Standard specifies the safety, construction and performance requirements for pressure regulators (hereafter referred to as regulators) intended for use with gas burners and gas-burning appliances using fuel gases of the 1st, 2nd and 3rd families. This Standard covers type testing only. It also provides additional information for the purchaser and user. This Standard is applicable to regulators that may be used independently of gas burners and gas-burning appliances, which have a declared working pressure from above 500 mbar up to and including 5 bar. This Standard is also applicable to regulators incorporating safety devices.