标准号:IS 7687-1980
发布日期:1981/4/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围: This standard deals with the methods of measurement of magnetic and electric properties of magnetic cores, mainly made of ferromagnetic oxides or metallic powders, and used in inductors and transformers for telecommunication equipment and electronic devices employing similar techniques.