China nuclear association will post 4 items test method on 15^th international nuclear industry exhibition of China, material used in nuclear electricity factory scratched and passivation test method in high temperature and pressure environment, material used in nuclear electricity factory for corrosion and fatigue test method in high temperature and pressure environment, material used in nuclear electricity factory stressed corrosion crack expansion test method in high temperature and pressure water environment, these for standard is edited by metal research institute of China scientific academy, material and safe evaluate lab of China scientific academy, these standard is advanced, scientific, operability.