MSS SP 94:2008
MSS SP 94:2008 Quality Standard For Ferritic And Martensitic Steel Castings For Valves, Flanges, Fittings, And Other Piping Components - Ultrasonic Examination Method Gives methods and acceptance standards for ultrasonic examination of ferritic and martensitic steel castings for valves, flanges, fittings, and other piping components.