DIN SPEC 4866 drafts rules for sustainable dismantling, disassembly, recycling and recovery of wind turbines wind turbines wind turbine blades standardization repowering DIN DIN SPEC DIN SPEC 4866 DIN SPEC 4866 drafts rules for sustainable dismantling, disassembly, recycling and recovery of wind turbines. Link to the download of the DIN SPEC 4866 on the website of the Beuth publishers Link to the businessplan fo the DIN SPEC 4866 on the website of the DIN