4.1 The procedures described in this practice are designed to provide steel panels with a uniform and reproducible surface for testing of paint, varnish, lacquer, conversion coatings, and related products.
1.1 This practice covers various types of cold rolled steel panels and the procedures to be followed in their preparation for testing paint, varnish, lacquer, conversion coatings, and related products.
1.2 The procedures are as follows:
Procedure A—Conversion coatings (phosphates, chromates,
etc.)
Procedure B—Vapor degreasing
Procedure C—Solvent brushing
Procedure D—Solvent wiping
Procedure E—Alkaline cleaning