GB/T 19816.4-2005 《Preparation of steel substrates before application of paints and related products-Test methods for metallic blast-cleaning abrasives-Part 4:Determination of apparent density》 Related products

"GB/T 19816.4-2005 Test method for metal abrasive for spray cleaning of steel surfaces prepared before coating Coatings, Part 4: Determination of apparent density (pb) " specifies the determination method of metal abrasive apparent density (pb) for jet cleaning. This method evaluates the integrity and mass of the abrasive by measuring the volumetric mass of the metal abrasive under specified conditions. The determination of apparent density (pb) helps to detect cratering or hollow particles inside the abrasive, thereby ensuring that the abrasive performance meets the jet cleaning requirements. The standard is centralized by the China Shipbuilding Industry group company, issued on June 10, 2005, and implemented on November 1, 2005.