GB/T 15445.6 - 2014 focuses on the particle shape and morphology representation in particle size analysis. The standard provides a qualitative method that can intuitively describe the particle Appearance characteristics, such as round, needle, etc. It also provides quantitative means to accurately quantify the particle shape through parameters such as aspect ratio and roundness. Detail the applicable scenarios of different measurement technologies, standardize the image acquisition and analysis process. According to this standard, the particle shape and morphology can be comprehensively and accurately expressed, providing key reference for material research and development, quality control and other fields, helping related industries to deeply understand particle characteristics, optimize production processes, and improve product performance.