Report No. 904 Radiography Proficiency Testing Program ... · 11. The source-to-film distance used, in millimetres. 1 12. The nature and thickness, in millimetres, of any screens

Report No. 904

Radiography

Proficiency Testing Program

Round Two

March 2015

ACKNOWLEDGMENTS PTA wishes to gratefully acknowledge the technical assistance provided for this program by Mr V Mierzwa, ALS Industrial Division.

© Copyright Proficiency Testing Australia 2015 P O Box 7507, Silverwater NSW 2128, Australia

CONTENTS

1 Foreword 1

2. Program Features and Design 1

3. Reporting by Participants 1

4. Reference Values 1

5. Summary of Results 2

6. PTA and Technical Adviser’s Comments 2

7. Reference 2

APPENDIX A

Summary of Reported Results A1-A3

APPENDIX B

Inspection Reports B1-B4

APPENDIX C

Instructions to Participants C1-C2

APPENDIX D

Summary Report to Participants D1-D5

1

1. Foreword

This report summarises the results of the second round of an interlaboratory comparison on the radiography examination of welded joints. The exercise was conducted from October 2013 to January 2015 by Proficiency Testing Australia (PTA). The Program Coordinator was Dr M Li. The Technical Adviser was Mr V Mierzwa. This report was authorised by Dr M Bunt, Statistician, PTA. The main aim of the program was to assess laboratories’ abilities to competently perform the prescribed testing.

2. Program Features and Design 2.1 Each laboratory was randomly allocated a unique code number for the

program to ensure confidentiality of results. Reference to each laboratory in this report is by code number only. Please note that where laboratories reported more than one set of results, the laboratory code number is reported with letters “a”, “b”, and “c” etc.

2.2 Laboratories were provided with the "Instructions to Participants" (refer

Appendix C). Participants were provided with one plate test specimen. 2.3 Twenty-six laboratories from Australia and one laboratory from Turkey

participated in the testing. Twenty-seven reports were submitted. 2.4 Results (as reported by participants) are presented in Appendix A for each laboratory. 3. Reporting by Participants Laboratories were asked to test the relevant specimen and report their test

results in accordance with AS2177-2006 & AS2314-2006 with AS1210-1997, Class 1. The test specimen was to be tested using Iridium 192, Gamma Radiographic Techniques.

4. Reference Values A total of four plate test pieces were used. The reference values for each of the

test specimens were provided by ATTAR, and are presented in Appendix B.

2

5. Summary of Results A summary of the results returned by participating laboratories for each test

appears in Appendix A. Each participating laboratory was provided with a Summary Report detailing its performance. An example of the Summary Report is included in Appendix D.

6. PTA and Technical Adviser’s Comments

The majority of participant results are consistent with the reference values, as shown in Appendix A. A number of the reports issued by participating laboratories did not adequately address the reporting requirements specified by AS2177-2006 & AS2314-2006 with AS1210-1997, Class 1. The number of reports that were deficient of information indicates that there is room for improvement in this area. Individual laboratories, and the non-destructive testing (NDT) industry in general, should consider reporting standardisation and simplification and place greater emphasis and importance on report details and terminology. It should be noted that most participating laboratories presented reports and work sheets which were of a very high standard. A minority of participants submitted responses which had significant deficiencies and this raises concerns regarding the technical control of those laboratories. The overall failure rate of 11.1% for this program indicates that there is room for improvement in the application of the ultrasonic test method.

7. Reference

[1] Guide to Proficiency Testing Australia (2014). This document is located on the PTA website at www.pta.asn.au.

APPENDIX A

Summary of Reported Results

A1

Lab Code

Total Scores Results

70.0

94.5

98.5

67.0

75.3

99.5

95.5

96.0

LABORATORY RESULTS (TEST PIECE ID: PTA0016-PLATE)

1 FAIL

6 PASS

7 PASS

16 FAIL

19 PASS

21 PASS

PASS22

24 PASS

A2

Lab Code


60.0

88.0

97.0

95.5

99.5

96.0

98.5

96.5

17 93.5 PASS

18 99.5 PASS

20 96.0 PASS

PASS12C

15 PASS

10B PASS

12A PASS

12B PASS


2 FAIL

9 PASS

10A PASS

A3

Lab Code


97.5

97.5

98.5

99.0

94.5

96.5

25 PASS

26 PASS

27 PASS


3 PASS

8 PASS

14 PASS

Lab Code


97.0

98.0


4 PASS

13 PASS

APPENDIX B

Inspection Reports

B1

Test Specimen Report (PTA0016)

B2


B3


B4


APPENDIX C

Instructions to Participants

C1

PROFICIENCY TESTING AUSTRALIA

RADIOGRAPHY PROFICIENCY TESTING PROGRAM INSTRUCTIONS TO PARTICIPANTS

Participants are requested to carefully note the following BEFORE commencing their testing. 1. General

The test specimen is not to be damaged or altered in any way. The use of grinders, files, linishers or sharp objects of any kind is prohibited.

The test should be considered as a routine inspection and, as such, all normal recording and reporting requirements shall apply. Relevant discontinuities only are to be recorded on an appropriate drawing, which is to be provided as part of the work sheet. 2. Test Method The test specimen is to be tested using Iridium 192, Gamma Radiographic Techniques.

Inspection of the pipe test specimen is to be conducted in accordance with AS2177-2006 & AS2314-2006 with AS4041-2006, Class 1.

Inspection of the plate test specimen is to be conducted in accordance with AS2177-2006 & AS2314-2006 with AS1210-1997, Class 1. 3. Recording and Reporting On an appropriate drawing, record non-compliant discontinuities, giving their type, length, and location from datum point. All reporting shall be in accordance with AS4749-2007.

A test report and the laboratory work sheets together with the applicable radiographs shall be submitted to Proficiency Testing Australia (PTA).

C2

Note:

PTA expects the work sheets and test report for this proficiency test to meet the same standard required of any other job, for which your laboratory issues a test report. The majority of marks will be awarded for information provided in the work sheets. 4. Nominated Construction Code Nominated construction code is AS 4458 Class 1 5. Return of Test Specimen and Results

The test specimen is to be thoroughly cleaned on completion of test.

The test specimen, together with completed test report and laboratory work sheets are to be returned within two weeks after receipt to:

Dr Michael Li

Proficiency Testing Australia

Phone: 61 2 9736 8397 Fax: 61 2 9743 6664

Email: [email protected]

Post Address:

P O Box 7507 Silverwater NSW 2128 Australia

Delivery Address:

7 Leeds Street, Rhodes

NSW 2138 Australia

APPENDIX D

Summary Report to Participants

D1

LABORATORY CODE NO: LABORATORY :ADDRESS :TEST PIECE ID :LABORATORY REPORT NO:

PART A DOCUMENTATION ASSESSMENT - Work Sheets(As per AS2177-2006 & AS 2314-2006 )

MAX SCORE

ACHIEVEDSCORE

1. Name of the laboratory or testing authority. 1

2. Identification of the component. 1

3. Job reference number. 1

1

5. Details of the material under test. 1

1

1

1

1

10. The effective source size, in millimetres. 1

page 1 of 5


RADIOGRAPHY PROFICIENCY TESTING PROGRAM ROUND 2

SUMMARY REPORT

4. Number of the product Standard.

6. The number of this Australian Standard, i.e. AS 2177, the method designation, or any departures from that method.

7. Details of weld location (sufficient to allow the film to be related to the workpiece or the test specimen)

8. The surface condition of the workpiece, including the type of preparation.

9. Details of the X-ray tube voltage and current, or of the isotope used and its radioactivity.

D2


PART A DOCUMENTATION ASSESSMENT - Work Sheets(As per AS2177-2006 & AS 2314-2006 )

MAX SCORE

ACHIEVEDSCORE

11. The source-to-film distance used, in millimetres. 1

12. The nature and thickness, in millimetres, of any screens used. 1

13. Special notes on exposure geometry (if applicable). 1

1

15. The trade designation of the film type used. 1

16. The film density range achieved. 1

17. Details of exposure, in milliampere-seconds or curie seconds. 1

18. Processing details, including variations from standard procedures. 1

19. The date and place of test. 1

20. The report number (or reference number) as applicable. 1

page 2 of 5



SUMMARY REPORT

14. IQI type, model, location and percent sensitivity achieved, refer to AS 2314.

D3

LABORATORY CODE NO: 27LABORATORY : ALS Industrial Pty LtdADDRESS : GladstoneTEST PIECE ID : PTA-0018LABORATORY REPORT NO: 4100-PTA

PART A DOCUMENTATION ASSESSMENT - Test Report(As per AS2177-2006 & AS 2314-2006 )

MAX SCORE

ACHIEVEDSCORE

1. Name of the laboratory or testing authority 1 1

1 1

3. Job reference number. 1 1

1 1

5. Details of the material under test. 1 1

1 1

7. Details of the welding processes. 1 1

2 2

2 2

10. Details of intensifying screens. 2 2

page 3 of 5

6. Reference to this Australian Standard, i.e. AS 2177, the method designation, or any departures from that method.

8. Details of any surface imperfections considered in assessment of radiograph.

9. Type of image quality indicator (IQI) used and minimum percent sensitivity achieved, refer to AS 2314.

SUMMARY REPORT

2. Identification of component, including sufficient details to permit subsequent correlation between the report and radiographs of the welds.

4. Number of the product Standard.



D4


PART A DOCUMENTATION ASSESSMENT - Test Report(As per AS2177-2006 & AS 2314-2006 )

MAX SCORE

ACHIEVEDSCORE

11. The film density range achieved. 2

12. Test results. 10

10

1

15. The report number and the date of issue. 1

1

page 4 of 5



SUMMARY REPORT

13. A statement of compliance or otherwise with the acceptance criteria as specified in relevant product Standard or application standard, if applicable.

14. The date and place of testing.

16. Identification of the officer responsible for the test report.

D5


PART B PRACTICAL ASSESSMENT

Quality of Radiographs:MAX

SCOREACHIEVED

SCORE

Identification - Plate No. 2

- Weld Interval 2

- Correct Placement 2

IQI - Correct Type 2

- Correct Placement 2

Correct Film Type Used 2

Film Density Within Sepcification 10

Sensitivity 10

Processing 10

20

38

42

100

OVERALL RATING

Score 86 - 100

71 - 85

0 - 70

Date of issue: page 5 of 5



SUMMARY REPORT

Part A - Work Sheets

Part A - Test Report

Part B - Practical Assessment

TOTAL SCORES

Satisfactory

Fair

Unsatisfactory

End of Report -----oooOooo-----

Documents

Report No. 904 Radiography Proficiency Testing Program ... · 11. The source-to-film distance used, in millimetres. 1 12. The nature and thickness, in millimetres, of any screens