MIL-A-22262B

Abstract

This specification covers nonmetallic abrasive materials used in the blast cleaning of metal surfaces and glass reinforced plastic surfaces, such as ships' hulls and tanks, for removing rust, scale, old paint and marine growth and to provide surfaces that are clean and suitable for painting. Abrasive inorganic materials are, for example, minerals and slags. Inorganic abrasives are used to remove coatings to bare metal. Inorganic abrasives have set limits for toxic metal content and radioactivity and meet Environmental Protection Agency hazardous waste requirements. In addition, Navy worker health and safety requirements and Navy corrosion control requirements have also been addressed. <b><u>Intended Use:</u></b> Abrasives covered by this specification are intended primarily for use in the dry, enclosed blast or unconfined blast cleaning of ship's hulls, tanks and components prior to painting. When these products are used in dry unconfined blast cleaning operations, local environmental and health regulations must be followed. These materials also address Navy corrosion control and worker safety and health requirements. Inorganic materials are not classified as hazardous waste by the Environmental Protection Agency (EPA) toxicity test or by the State of California's Waste Extraction Test and may be disposed of as conventional waste unless they are contaminated as part of the abrasive blasting operation. Recycling techniques or other methods can be used to restore the abrasive material to be used again or disposed of so long as the recycled materials meet the requirements of this document. <br>