DIN EN 1458-2-2012 额定热输入不超过6 kW的B22D和B23D型国产直接燃气式滚筒烘干机.第2部分:能源的合理使用.德文版 EN 1458-2-2011
Domestic direct gas-fired tumble dryers of types B22D and B23D, of nominal heat input not exceeding 6 kW - Part 2: Rational use of energy; German version EN 1458-2:2011