I.S. CWA 15261-3:2005
Withdrawn
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MEASUREMENT UNCERTAINTIES IN MECHANICAL TESTS ON METALLIC MATERIALS - PART 3: THE EVALUATION OF UNCERTAINTIES IN CREEP TESTING
Hardcopy , PDF
13-05-2021
English
01-01-2005
INTRODUCTION
1 SCOPE
2 DEFINITIONS
3 PROCEDURE FOR THE ESTIMATION OF UNCERTAINTY IN CREEP TESTS
3.1 GENERAL PROCEDURE
3.2 ANALYTICAL PROCEDURE
Step 1 - Identification of the parameters for which
uncertainty is to be estimated
Step 2 - Identification of all sources of uncertainty
in the test
Step 3 - Estimation of sensitivity coefficient and
standard uncertainty for each source of uncertainty
Step 4 - Calculation of the combined uncertainties of the
measurands and expanded uncertainty
Step 5 - Presentation of results
4 REFERENCES
APPENDIX A1: Relationship diagrams
APPENDIX A2: Basis route
APPENDIX A3: Calculation of uncertainties in measured quantities
(Second route)
APPENDIX A4: Formulae for the calculation of measurands'
combined uncertainties (Second route)
APPENDIX A5: Equation summary
APPENDIX B: A worked example for calculating uncertainties in
creep tests (Second route)
APPENDIX C: Values of stress exponent n, and (activation energy Q)/R
APPENDIX D: Derivation of some formulae for uncertainties
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