YS/T 1565-2022 "High purity aluminum oxide powder for thermal spraying" specifies the classification, technical requirements, test methods, inspection rules, marking, Encasement, transportation, storage requirements of the powder, as well as accompanying documents and order form contents. This standard applies to high purity aluminum oxide powder for plasma lame plating prepared by processes such as melt crushing or spray sintering. The test methods for the physical and chemical properties of the powder are described in detail to ensure that it meets the requirements for use. Stability and performance Reliability The standard emphasizes strict control of key properties such as powder sampling, density, chemical composition and Particle size distribution to ensure product Stability and performance Reliability.