WJ 2694-2008 in English

This document specifies the technical requirements, testing methods, and quality control procedures for castings used in optical instruments that undergo impregnation treatment. It covers aspects such as material selection, casting process parameters, surface preparation, impregnation techniques, and post-treatment inspection. The scope includes various types of castings commonly used in the manufacturing of optical equipment, ensuring that they meet the necessary performance and reliability standards. The document also outlines the requirements for documentation, storage, and handling of castings throughout their lifecycle. It serves as a reference for manufacturers, quality assurance personnel, and engineers involved in the production and evaluation of optical instruments. The content is structured to facilitate compliance with industry expectations and to support the consistent production of high-quality components.