ISO4552-1:1987
铁合金--化学分析用取样和样品制备第1部分:铬铁、硅铬铁、硅铁、硅锰铁、锰铁Ferroalloys - Sampling and sample preparation for chemical analysis - Part 1: Ferrochromium, ferrosilicochromium, ferrosilicon, ferrosilicomanganese, ferromanganese
进出口商品检验领域受理大宗产品类检验对象仅限:煤和焦炭;精矿和金属;矿石和矿物;农产品;木材;液体石油产品;液化石油气;化工品;化肥;动植物油、脂、蜡等共10类...