ICS 77.150.30 Descriptors: Copper, plate, sheet, circles. Kupfer und Kupferlegierungen – Platten, Bleche, B?nder, Streifen und Ronden zur allgemeinen Verwendung European Standard EN 1652 : 1997 has the status of a DIN Standard. A comma is used as the decimal marker. National foreword This standard has been prepared by CEN/TC 133. The responsible German body involved in its preparation was the Nor