YS/T 91-2002 in English

This standard outlines the specifications for aluminum and aluminum alloy sheets and strips used in the production of bottle caps. It provides detailed requirements regarding the composition, dimensions, and mechanical properties of the materials. The standard also includes guidelines for testing methods and quality control procedures to ensure consistency and reliability in the manufacturing process. Additionally, it covers packaging, labeling, and storage conditions to maintain the integrity of the products throughout their lifecycle. The document serves as a reference for manufacturers, suppliers, and regulatory bodies to ensure compliance with industry norms.