DIN EN 1971-1:2020-02 Copper and copper alloys - Eddy current test for measuring defects on seamless round copper and copper alloy tubes - Part 1: Test with an encircling test coil on the outer surface; German version EN 1971-1:2019
2020DIN EN 1971-1:2020-02 Copper and copper alloys - Eddy current test for measuring defects on seamless round copper and copper alloy tubes - Part 1: Test with an encircling test coil on the outer surface; German version EN 1971-1:2019
2012DIN EN 1971-1:2012 Copper and copper alloys - Eddy current test for measuring defects on seamless round copper and copper alloy tubes - Part 1: Test with an encircling test coil on the outer surface; German version EN 1971-1:2011