90.93 Standard confirmed May 9, 2019
CEN
CEN/TC 133 Copper and copper alloys
European Norm
77.120.30 Copper and copper alloys
Published
This European Standard specifies the compositions of copper-based master alloys intended for the manufacture, deoxidation, or desulfurization of cast or wrought alloys, especially those based on copper, supplied in the form of ingots, notched bar, notched slab (waffle plate), granules or broken pieces.
A procedure is included for sampling the master alloys for analysis for verification of conformity to the composition requirements.
A method for the determination of chromium(III)-oxide in chromium-copper master alloy is given in annex A.
WITHDRAWN
EN 1981:1998
PUBLISHED
EN 1981:2003
90.93
Standard confirmed
May 9, 2019
