SJ/T 9072.3-2013 Soft ferrite cores terms and definitions - Part 3: Guidelines for information on ferrite materials in manufacturers' catalogs of transformer and inductor cores (English Version)
2013SJ/T 9072.3-2013 Soft ferrite cores terms and definitions - Part 3: Guidelines for information on ferrite materials in manufacturers' catalogs of transformer and inductor cores
1997SJ/T 9072.3-1997 Ferrite materials-Guide on the format of data appearing in manufacturers catalogues of transformer and inductor cores