This Korean Industrial Standard specifies electrolytic double layer zinc-iron coated steel sheets and coils (hereafter, referred to as "sheets and coils") with the high level prevention of rust and the coating property. The base plate used for sheets coils shall be in accordance with KS D 3512, KS D 3617 and KS D 3856. Remark The unit and numerical value in { } of this standard are in accordance with traditional unit, and they are stated here as reference 。