1 Scope
This part of IEC 60404
specifies minimum values for the principal magnetic properties of, and dimensional
tolerances for, technically important permanent magnet (magnetically hard) materials.
For information purposes only, this document provides values for the densities of
the materials and the ranges of their chemical compositions.
NOTE Some additional physical data and mechanical reference values concerning the magnetic
materials are given in Table A.1 for information and comparison purposes.