GB/T 38005-2019 in English

This standard outlines the fundamental requirements for uncut lens blanks used in eyewear. It specifies the essential criteria that these lenses must meet to ensure their quality and safety. The document covers various aspects such as material composition, dimensional tolerances, and performance characteristics. It also includes guidelines for testing and inspection procedures to verify compliance with the established standards. The standard is designed to provide a uniform framework for manufacturers and regulatory bodies to ensure consistency and reliability in the production of uncut lens blanks. It serves as a reference for both industry professionals and quality control processes.