Aubt Qualification Test

AUBT PRACTICAL EXAMINATION WORKSHEET

Name:______

Base Metal Sample

  1. Detect any backscatter signals in sample provided.

Base Metal Sample #:

2. Identify the pattern type of any backscatter signals and apply the appropriate procedure.

Pattern Type: I II III IV

3.  Store and recall to a document (or print) the backscatter signals. Images required:

·  10 MHz backscatter of Reference block: Image#: ______

·  10 MHz backscatter of Indication from base metal sample: Image#: ______

·  5 MHz backscatter of Indication displayed appropriately: Image#: ______

·  Spectrum Analysis of both Reference and Indication: Image#: ______

·  Velocity Ratio Method 1 - Show images of 1st and 2nd backwall signals from both L-wave and S-wave with cursors visible: Image#: ______

·  Velocity Ratio Method 2 – Show image of backwall signal (or interface) with absolute curser visible from both L-wave and S-wave: Image#: ______

·  Spatial Averaging of Indication: Image#: ______

·  Spatial Averaging of Reference block signal: Image#: ______

4.  Complete the information requested for all sections below. Then, circle methods used for Analysis according to the appropriate procedure.

  1. 10 MHz Backscatter: Image#: _____
  2. 5 MHz Backscatter: Image#: ______
  3. Spectrum Analysis
  4. Attenuation increase with frequency? Yes __ No _
  5. If Yes, Attenuation at 10 MHz: dB

Attenuation at 5 MHz: dB

  1. Velocity Ratio:

·  Method 1:

  1. Base Metal Sample L-wave (µs):
  2. Base Metal Sample S-wave (µs):
  3. Velocity Ratio: ______

·  Method 2:

d.  Cal Block Delta t1 L-wave (µs):

e.  Cal Block Delta t2 L-wave (µs):

  1. Delay (L-wave): ______
  1. Cal Block Delta t1 S-wave (µs):
  2. Cal Block Delta t2 S-wave (µs):
  3. Delay (S-wave): ______
  1. Base Metal Sample uncorrected L-Wave (µs): ______
  2. Base Metal Sample uncorrected S-Wave(µs): ______
  3. Velocity Ratio (corrected): ______
  4. Spacial Avaraging

Base Metal Flaws Detected: Yes No ___

Circle Flaw Type(s) Detected:

·  HTHA, Laminations, Inclusions

Base Metal HTHA Detected: Yes No ____

Height of HTHA if Detected: ______

Weld HAZ Samples

  1. Detect any weld HAZ indications.
  2. Use ABSA procedure to make the correct call.
  3. Store and recall (or print) all relevant supporting data. Images required:

·  A-Scan with wedge delay and ID cursors set

  1. Wedge Delay in µs: ______
  2. Sample Thickness in µs: ______
  3. Sample Thickness in inches: ______
  4. ID Cursor Value in µs: ______

·  Spectrum analysis of reference and suspect signal

Flaws Detected: Yes No ___

Circle Flaw Type(s) Detected:

·  HTHA, ID Crack, Lack of Penetration ( LOP ), Lack of Fusion ( LOF ), Porosity, Slag

Weld/HAZ HTHA Detected: Yes No ___

Flaw Size:

  1. Start location: ______
  2. Length: ______
  3. Height: ______
  4. Depth: ______
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