GB/T 15972.33-2008 "Specification for Fiber Optic Fiber Test Methods, Part 33: Mechanical Property measurement methods and test procedures, stress corrosion sensitivity parameters" specifies the measurement and test methods of fiber stress corrosion sensitivity parameters. The standard covers test principles, equipment requirements, sample preparation, test procedures and data processing. By quantifying stress corrosion sensitivity, it provides a technical basis and a unified standard for evaluating the mechanical properties of optical fibers in stress and corrosion environments, and ensuring the reliability and service life of optical fibers.