ISO 4552-1:1987現行
Ferroalloys - Sampling and sample preparation for chemical analysis Part 1: Ferrochromium, ferrosilicochromium, ferrosilicon, ferrosilicomanganese, ferromanganese
出版：International Organization for Standardization
專家解讀視頻
KS D ISO 4552-1:2003 - Identical
KS D 0042:2014 - Identical
JIS G 1601:1998 - Identical
NBR NM-ISO 4552-1:2000 - Identical
UNI ISO 4552-1:1994 - Identical
PN ISO 4552-1:2005 - Identical
