Draft Document - Preparation of steel substrates before application of paints and related products - Specifications for metallic blast-cleaning abrasives - Part 7: High chromium white cast iron grit (ISO 11124-7:2025)

This document establishes comprehensive specifications for abrasive materials utilized in metal blasting processes, specifically focusing on high-chromium white cast iron grit. It forms an integral part of a series dedicated to surface preparation techniques for steel and other metal products prior to painting or coating application. The standard defines rigorous technical requirements regarding the chemical composition, physical properties, and particle size distribution of these specific abrasive grains. It outlines testing methodologies to ensure consistency and performance reliability during industrial cleaning operations. By adhering to these guidelines, manufacturers and service providers can achieve optimal surface profiles and cleanliness levels necessary for effective adhesion of subsequent protective layers. The content addresses the unique characteristics of the specified iron alloy, ensuring that the selected abrasives meet defined durability and efficiency criteria. This framework supports uniform quality control across various applications involving sandblasting and shot blasting technologies, facilitating improved outcomes in metallurgical and construction industries where surface integrity is critical.