Standard Practice for Ultrasonic Examination of （超声检查的标准实践）.pdfVIP

Designation: E 213 – 98 An American National Standard Standard Practice for Ultrasonic Examination of Metal Pipe and Tubing1 This standard is issued under the fixed designation E 213; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval. 1. Scope 2.2 ASNT Documents: 2 covers a procedure for detecting discon- Recommended Practice SNT-TC-1A for Nondestructive 1.1 This practice tinuities in metal pipe and tubing using pulse-reflection ultra- Testing Personnel Qualification and Certification4 sonic contact or immersion angle beam techniques. Artificial ANSI/ASNT CP-189 Standard for Qualification and Certi- discontinuities consisting of longitudinal reference notches are fication of Nondestructive Testing Personnel4 employed as the primary means of standardizing the ultrasonic 2.3 Military Standards: system. If transverse as well as longitudinal examination is MIL-STD-410 Nondestructive Testing Personnel Qualifica- tion and Certification5 desired, a procedure for employing