This standard specifies the term definitions and symbols, measurement principles, samples, measurement devices, measurement procedures, calculations, repeatability and test reports of open-circuit flux measurement methods for residual magnetism, DC magnetic properties measurement methods and intrinsic coercive force measurement methods . This standard is applicable to the measurement of the magnetic parameters of steel materials with a coercive force ranging from 0.5kA/m to 100kA/m, including plates and bars.
GB/T 13012-1991 history
2008GB/T 13012-2008 Methods of measurement of d.c magnetic properties of magnetically soft materials
1991GB/T 13012-1991 Solid steels--Methods of measurement of the d.c. magnetic properties