BS EN 10228-4-2016 钢锻件的无损检验 奥氏体和奥氏体-铁素体不锈钢锻件的超声检验
This practice shall be used when ultrasonic inspection is required by the order or specification for inspection purposes where the acceptance of the forging is based on limitations of the number, amplitude, or location of discontinuities, or a combination thereof, which give rise to ultrasonic indications. The ultrasonic quality level shall be clearly stated as order requirements.
