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ASME B89.4.23 2020

ASME B89.4.23 2020

$98.04

ASME B89.4.23 – 2020 X-Ray Computed Tomography (CT) Performance Evaluation

Published By Publication Date Number of Pages
ASME 2020 40
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PDF Catalog

PDF Pages PDF Title
4 CONTENTS
5 FOREWORD
6 ASME B89 COMMITTEE ROSTER
7 CORRESPONDENCE WITH THE B89 COMMITTEE
10 1 SCOPE
2 INTRODUCTION
11 2.1 Organization
2.2 Specifications
2.3 Objectives of the Test Protocol
12 3 REFERENCES
4 DEFINITIONS
13 5 EXAMPLES OF RATED OPERATING CONDITIONS
14 5.1 Typical Rated Characteristics of CT Systems
5.2 Typical Rated Environmental Conditions
5.3 Scanning Mode
5.4 Work Zone
5.5 Operating Procedures
15 5.6 Test-Object Material
5.7 Maximum Loading
6 METROLOGICAL SPECIFICATIONS
16 6.1 Center-to-Center Length Error
6.2 Sphere-Size Error
6.3 Sphere-Form Error
17 7 TESTING
7.1 Test Object
18 7.2 Loading Requirements
7.3 Preknowledge Requirements
7.4 Test Protocol
19 Figures
Figure 7.4.1-1 Mandatory Work-Zone Measurement Planes and Lines
21 8 COMPLIANCE WITH SPECIFICATIONS
8.1 Decision Rule
8.2 Acceptance Criteria
8.3 Reverification Test
22 Form
Form 7.4.3-1 Test Protocol Template for Up to Three Rated Materials and a Test Object With One Measurement Plane
23 Figure 7.4.3-1 Example Test Protocol for One Rated Material
24 MANDATORY APPENDIX I TEST OBJECT MATERIALS
I-1 MATERIALS, SURROGATES, AND EXCLUSIONS
25 Table
Table I-1-1 CTEs of Material Classes
26 MANDATORY APPENDIX II MATHEMATICAL ADJUSTMENTS TO TEST OBJECTS WITH A BASE MATERIAL THAT IS LOW-DENSITY AND LOW-CTE
II-1 GENERAL
II-2 REQUIREMENTS
28 MANDATORY APPENDIX III METROLOGICAL TRACEABILITY OF ASME B89.4.23 TEST VALUES
III-1 TRACEABILITY REQUIREMENTS
29 MANDATORY APPENDIX IV TEST VALUE UNCERTAINTY
IV-1 INTRODUCTION
IV-2 UNCERTAINTY ASSOCIATED WITH THE REFERENCE VALUE
IV-3 UNCERTAINTY ASSOCIATED WITH TEST VALUES OBTAINED OUTSIDE THE RATED OPERATING CONDITIONS
30 NONMANDATORY APPENDIX A DEFAULT TEST OBJECTS
A-1 SPHERE–HOLE PLATES
A-2 SPHERE PLATES WITH OBSTRUCTING RODS OR BLOCKS
A-3 3D TEST STRUCTURE
31 Figure A-1-1 A Square Two-Piece Sphere–Hole Plate With Covering Hole Plate
33 Figure A-2-1 Sphere Plate With and Without an Obstructing Body
Figure A-2-2 Scalable Design
34 Figure A-2-3 Further Orientations of the Test Object
35 Figure A-3-1 Aluminum 3D Test Structure With Infused Silica Spheres
36 Figure B-1-1 Bidirectional, Unidirectional, and Center-to-Center Lengths
NONMANDATORY APPENDIX B BIDIRECTIONAL LENGTH
B-1 BOUNDS ON INFORMATIVE BIDIRECTIONAL LENGTH ERROR
37 NONMANDATORY APPENDIX C SUPPLEMENTARY TEST PROCEDURE WHEN USING TEST OBJECTS WITH LOW-DENSITY AND LOW-CTE BASE MATERIALS
C-1 GENERAL
C-2 TEST PROCEDURE

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