IEC 87/542/CD:2013
IEC/TS 62791: 超聲學. 脈沖回波掃描儀. 適用于廣泛傳感器類型范圍的灰階醫用超聲波掃描儀的性能試驗用低回聲球體幻影
IEC/TS 62791: Ultrasonics - Pulse-echo scanners - Low-echo sphere phantoms and methods for performance testing of gray-scale medical ultrasound scanners applicable to a broad range of transducer types