DIN EN 61429/A11:2000 用ISO 7000-1135國際循環符號的蓄電池和蓄電池組標記和關于93/96/EEC和91/157/EEC指令的指示
Marking of secondary cells and batteries with the international recycling symbol ISO 7000-1135 and indications regarding directives 93/86/EEC and 91/157/EEC; German version EN 61429/A11:1998