This specification covers the requirements for cleanliness of recycled ferrous metallic blast cleaning abrasives used for the removal of coatings, paints, scale, rust and other foreign matter from steel or other surfaces.
Requirements are given for lab and field testing of recycled ferrous metallic abrasives work mix.
Recycled ferrous metallic abrasives are intended for use in field or shop abrasive blast cleaning of steel or other surfaces.
FERROUS METALLIC ABRASIVES: Ferrous metallic abrasives are used for blast cleaning steel and other surfaces. The inherent value of ferrous metallic abrasives is their ability to be recycled many times. The recycled abrasive must be cleaned to remove abrasive fines and debris, including paint, rust, mill scale, and other contaminants generated during the blast cleaning of steel or other surfaces.
RECYCLED ABRASIVE WORK MIX: The work mix develops during blast cleaning and recycling and is composed of new abrasive additions and recycled abrasive. The new abrasive being added may consist of shot, grit, or a mix of shot and grit.
