Draft Document - Safety and control devices for gas burners and gas burning appliances - Part 3: Pressure and/or flow rate regulators for inlet pressures up to and including 500 kPa, electronic types; German and English version prEN 88-3:2017
文件草案——燃气燃烧器和燃气器具的安全和控制装置——第3部分:500 kPa及以下进口压力的电子式压力和/或流量调节器;德文版和英文版prEN 88-3:2017