CB/T 3513-1993 "Technical Requirements for the Acceptance of Ship Derusting Painting Mass", which stipulates the technical specifications for the acceptance of ship derusting painting mass. The standard specifies the grade, method and requirements of ship derusting, standardizes the materials, processes and processes of painting construction, and describes the inspection items, inspection methods and acceptance standards of derusting painting mass in detail to ensure that the ship derusting painting operation reaches the specified mass level, and guarantees the anti-corrosion performance and service life of the ship structure.