DIN 50506:1973-10 Chemical analysis of copper and copper alloys; photometric determination of nickel in copper alloys containing 2,5 % of nickel at maximum
1973DIN 50506:1973-10 Chemical analysis of copper and copper alloys; photometric determination of nickel in copper alloys containing 2,5 % of nickel at maximum
1973DIN 50506:1973 Chemical analysis of copper and copper alloys; photometric determination of nickel in copper alloys containing 2,5 % of nickel at maximum