This standard describes a test method for evaluating the VIA of various forms of VCI materials to reduce corrosion on the surface of ferrous metals. This standard is applicable to VCI materials in the form of thin flexible, rigid, or laminate materials. Examples of thin flexible VCI materials are VCI-treated paper or VCI-impregnated plastic films, sheets, and bags. Examples of more rigid materials include thicker plastic sheeting of 1,000 im (40 mil) or more in thickness as well as profile board and molded trays, boxes, and other rigid forms. This standard is also applicable to other forms of VCI material such as powders, tablets, plastic pellets, vapor capsules, diffusers, and emitters, as well as liquids that have vapor-inhibiting properties, perhaps in addition to contact inhibitor effects.