DIN EN ISO 16828-2014 无损检测. 超声波检测. 作为不连续检测和评价方法的衍射声时技术(ISO 16828-2012); 德文版本EN ISO 16828-2014
Non-destructive testing - Ultrasonic testing - Time-of-flight diffraction technique as a method for detection and sizing of discontinuities (ISO 16828:2012); German version EN ISO 16828:2014