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Ultrasonic A-Scan Thickness Measurement - Level  II


Course Duration:     3 Days (24 Hours)                                                                                                 Course Fees:     $795
Ultrasonic A-Scan Thickness Measurement - Level II, Classroom NDT training course is developed to meet the requirements of ASNT SNT-TC-1A, CP -189, and other equivalent standards and customer-specific written practice for training and certification in this method of Non-Destructive Testing personnel.
After completing the Ultrasonic A-Scan Thickness Measurement level II course, you will gain in-depth knowledge of Ultrasonic Testing principles, sound waves, and attenuation of sound, transducers, equipment, and application of Ultrasonic Testing techniques to test various product forms.
Training Examination & Certification Requirement:
During this Ultrasonic A-Scan Thickness Measurement class, you will give General theory, Specification, and Practical examinations. You'll need to successfully pass these three examinations with a minimum of 70% grading in each examination, and the average grading of all three examinations should be 80% minimum according to the requirement of ASNT SNT-TC-1A 2011.
OJT Hours: As per the requirements of ASNT SNT-TC-1A, you need to have a minimum of 175 Hours of on-job training (OJT) after completion of training classes for certification in this method.

Basic Principle of Ultrasonic A-Scan Thickness Measurement Testing
In the ultrasonic testing method, high-frequency sound waves are transmitted into a material to detect imperfections or to locate changes in material properties. The most commonly used ultrasonic testing technique is pulse echo. The sound is introduced into a test object, and reflections (echoes) are returned to a receiver from internal imperfections or the part's geometrical surfaces.
Course Description:

  • Wave modes
  • Wave interaction & Interference  
  • Piezoelectric Transducer   UT-BScan
  • Ultrasonic Pulsar and Receiver  
  • Attenuation of sound
  • Major Variables in Ultrasonic Testing
  • Test Blocks and Instrument Calibration
  • Straight Beam Testing
  • Code and Standard

Hands-on Training (Practical) Outlines:

  • Range Calibration
  • Resolution Check
  • Dead Zone Check
  • Velocity Comparison
  • Attenuation Check
  • Corrosion Mapping
  • Lamination Check
  • Flaw Sizing
  • Flaw Interpretation and Evaluation

Training Material:

Training Course material is supplied at the start of training and divided into sections followed by practice worksheets and quizzes. Training books also include some referencing codes & specifications for examination procedures and acceptance.

Referencing Code and Standards:
  • ASTM E 0797 – Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method
  • ASTM SA 435 – Straight-Beam Examination of steel plate.