DIN EN 61143-2:1995-01 Electrical measuring instruments - X-t recorders - Part 2: Recommended additional test methods (IEC 61143-2:1992); German version EN 61143-2:1994
1995DIN EN 61143-2:1995-01 Electrical measuring instruments - X-t recorders - Part 2: Recommended additional test methods (IEC 61143-2:1992); German version EN 61143-2:1994