YS/T 370-2018 in English

This standard provides detailed procedures for the preparation of metallographic samples of precious metals and their alloys. It outlines the necessary steps for sample cutting, mounting, grinding, polishing, and etching to ensure consistent and reliable microstructural analysis. The guidelines cover the selection of appropriate equipment and materials, as well as the conditions required for each processing stage. Additionally, it specifies the criteria for assessing the quality of the prepared samples. The standard is structured to facilitate the accurate interpretation of microstructures, supporting both research and industrial applications. It includes recommendations for handling and storage to maintain sample integrity throughout the preparation process.