1. IEC Standard 404-3: Methods of measurement of specific total losses of magnetic sheet and strip by means of a single sheet tester. International Electrotechnical Commission, 1982 (Equivalent standard BS 6404-3, British Standards Institution, 1985)
2. IEC Standard 404-2: Methods of measurements of magnetic, electrical and physical properties of magnetic sheet and strip. International Electrotechnical Commission, 1978 (Equivalent standard BS 6404-2, Standards Institution, 1985)