GOST 12119.6-1998 Electrical steel. Methods of test for magnetic and electrical properties. Method for measurement of relative magnetic permeability and specific magnetic losses by a.c. bridge
GOST 23737-1979 Electric resistance measures. General specifications
GOST 6746-1975 Capacitance measures. General specifications
GOST 12119.6-1998 history
1998GOST 12119.6-1998 Electrical steel. Methods of test for magnetic and electrical properties. Method for measurement of relative magnetic permeability and specific magnetic losses by a.c. bridge