1.1 ,This practice covers the preparation of zinc-coated and zinc-alloy-coated sheet steel panels to be used for testing paint, varnish, lacquer, conversion coatings, and related products. It covers sheet steel coated with hot dipped galvanized, one-side galvanized, electrogalvanized, zinc-iron alloy coatings (such as galvanneal), and zinc-5 ,% aluminum alloy coatings. It does not cover steel panels coated with 55 ,% aluminum-45 ,% zinc alloy, because these behave more like aluminum than zinc.