GB/T 9258.3-2025 in English

This standard outlines the methods for testing and marking the particle size composition of abrasive materials used in coated abrasives. It specifically addresses the micro-particles ranging from P240 to P5000. The document provides detailed procedures for determining the distribution of particle sizes, ensuring consistency and accuracy in the measurement process. It also includes guidelines for the proper labeling of products to reflect their particle size characteristics. The standard is structured to support manufacturers and users in achieving uniformity in the specification and application of abrasive materials. It covers the essential requirements for testing equipment, sampling methods, and evaluation criteria. The information provided is intended to facilitate the correct interpretation and use of abrasive products in various industrial applications.