The International Electrotechnical Commission (IEC) has published an amendment to IEC 60404-15:2012. The update, Amendment 1 – Magnetic materials – Part 15, applies to “Methods for the determination of the relative magnetic permeability of feebly magnetic materials” and is now available on the IEC webstore.
Description: “IEC 60404-15:2012/AMD1:2016 specifies a solenoid method, a magnetic moment method, a magnetic balance method, and a permeability meter method for the determination of the relative magnetic permeability of feebly magnetic materials (including austenitic stainless steel). The magnetic balance and permeability meter methods are both comparison methods calibrated using reference materials to determine the value of the relative magnetic permeability of the test specimen.”
*Description from the IEC Website.