e) Prior to pickling, all heavy deposits of oils, greases, soils or foreign matter other than millscale, rust or rustscale shall be removed by precleaning as cited in 5.1.
酸洗前，
了铁鳞、铁锈之外，诸如油、油脂、土或杂质等所有的重
均应通
预
洗
，如5.1中所述。
洗e) Prior to pickling, all heavy deposits of oils, greases, soils or foreign matter other than millscale, rust or rustscale shall be removed by precleaning as cited in 5.1.
酸洗前，了铁鳞、铁锈之外，诸如油、油脂、土或杂质等所有的重均应通预洗，如5.1中所述。
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