2014DIN EN ISO 80601-2-69:2014 Medical electrical equipment - Part 2-69: Particular requirements for basic safety and essential performance of oxygen concentrator equipment (ISO 80601-2-69:2014); German version EN ISO 80601-2-69:2014
2012DIN EN ISO 8359/A1:2012 Oxygen concentrators for medical use - Safety requirements - Amendment 1 (ISO 8359:1996/Amd 1:2012); German version EN ISO 8359:2009/A1:2012