DIN EN 12309-7:2015
净热输入不超过 70 kW 的加热和/或冷却用燃气吸附器具 第7部分:混合器具的特殊规定;德文版 EN 12309-7:2014
Gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70 kW - Part 7: Specific provisions for hybrid appliances; German version EN 12309-7:2014