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1. Introduction
2. Scope
3. Hardness Testing Background
4. Field Hardness Tester Types, Attributes, Application Criteria and Codes
5. Pre-Assessment
6. Pre-Assessment Data Evaluation
7. Hardness Tester Selection
8. Procedure Qualification and Documentation
9. Project Staff/Test Technician Qualification Requirements
10. Pipe Sample Size and Lower Bound Hardness Statistical Estimates
11. Hardness Test Locations on Pipe
12. Pipe Surface Preparation
13. Testing Calibration, In-Process Evaluation, and Uncertainty
14. Field Hardness Data Evaluations
15. Hardness Conversion to Yield Strength
16. Hardness Conversion Validation
17. DOT/State Special Permit (Waiver) Petition Requirements
REFERENCES
APPENDIX A Yield Strength from Hardness – Additional Background
APPENDIX B Field Hardness Tester -- Detailed Information
APPENDIX C Selected Industry Codes/Standards
APPENDIX D Hardness Test Locations Within a Pipe Length
APPENDIX E Hardness Test Procedure Qualification Record (PQR)
APPENDIX F Hardness Test Technician Qualification Record (TQR)
APPENDIX G Statistical Methods Background
APPENDIX H Field Hardness Testing Data Sheet
APPENDIX I Effect of Pipe Pressure on Rebound Hardness Tester Results
APPENDIX J Surface Roughness Considerations
List of Tables
List of Figures
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