Understanding API ICP653 Reading 7-Worksheet-04 Part1

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12.2 Radiographs Number and location - Same as API-650, plus the following additional requirements: 12.2.1.1 Vertical Joints a. New plate to new plate: Same as API 650. b. New plate to existing plate: Same as API 650, plus one (1) additional radiograph. c. Existing plate to existing plate: Same as API 650, plus one (1) additional radiograph. 12.2.1.2 Horizontal Joints a. New plate to new plate: Same as API 650. b. New plate to existing plate: Same as API 650, plus one (1) additional radiograph for each 50 feet of horizontal weld. c. Existing plate to existing plate: Same as API 650, plus one (1) additional radiograph for each 50 of horizontal weld.. 12.2.1.3 Intersections a. New plate to new plate: Same as API 650. b. New plate to existing plate: Shall be radiographed. c. Existing plate to existing plate: Shall be radiographed. Charlie Chong/ Fion Zhang
12.2.1.4 Each butt-weld annular plate joint - Per API-650. 12.2.1.5 For reconstructed tanks 25 percent of all junctions shall be radiographed. 12.2.1.6 New and replaced shell plate or door sheet welds: 12.2.1.6.1 Circular - Minimum one (1) radiograph 12.2.1.6.2 Square or Rectangular: One (1) in vertical, one (1) in horizontal, one (1) in each corner. NOTE: All junctions between repair and existing weld shall be radiographed. If defects are found, 100% is required on weld repair area. 12.2.1.8 For penetrations installed using insert plates as described in 9.8.2, the completed butt welds between the insert plate and the shell plate shall be fully radiographed. 12.2.2 Criteria Acceptance If a radiograph of an intersection between new and old weld detects unacceptable flaws (by current standards) the weld may be evaluated according to the as built standard. Charlie Chong/ Fion Zhang
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Understandings API ICP653 Reading 7
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Charlie Chong/ Fion Zhang
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Charlie Chong/ Fion Zhang Fion Zhan
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API 653 Exam Administration -- Publ
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• API Recommended Practice 575, I
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Charlie Chong/ Fion Zhang http://gr
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闭门练功 Charlie Chong/ Fion
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1.1 General 1.1.1 This standard cov
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1.4 Safe Working Practices Safety p
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c. An owner or operator of one or m
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3.9 critical zone: The portion of t
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3.16 repair organization: An organi
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organizations Charlie Chong/ Fion Z
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3.21 as-built standard: The standar
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3.23 major alteration or major repa
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g. Removing and replacing part of t
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SECTION 4 - SUITABILITY FOR SERVICE
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4.2 Tank Roof Evaluation (General)
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4.2.4 Change of Service 4.2.4.1 Int
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4.3.1.3 Shell corrosion occurs in m
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EXAMPLE: A tank 38 feet tall, 150 f
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4.3.3 Minimum Thickness Calculation
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G = Highest specific gravity of the
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Sample problem for minimum thicknes
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Maximum Allowable Fill Height Calcu
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Sample problem for maximum allowabl
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Joint Efficiency for the plate For
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For Riveted Tank E is 1.0 for shell
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Table 4.3—Joint Efficiencies for
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B. Tank Shells 1. See prior comment
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4.3.6 Flaws cracks and laminations
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4.4 Tank Bottom Evaluation 4.4.1 Ge
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4.4.6 Bottom Measurements Methods (
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4.4.7.4 Critical zone thickness is
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4.4.8 Minimum "t" - Annular Plate R
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Quiz: Annular Plate t min Annular p
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API653: Table 4.5—Annular Bottom
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API653: Table 4.4—Bottom Plate Mi
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4.5.2 and 4.5.3 General a. For repa
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5.2.1 Reported conditions involving
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5.3 Assessment Procedure 5.3.1 - 5.
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6.2.2 The interval between inspecti
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6.3.3 In-service UT "t" measurement
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API651: 11.3 Cathodic Protection Su
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CP Survey 11.3 Cathodic Protection
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6.4.2 Inspection Intervals 6.4.2.1
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6.4.2.1.2 As an alternative to esta
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6.4.2.2 Subsequent Internal Inspect
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Table 4.4—Bottom Plate Minimum Th
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Quiz: Critical Zone t min t minimum
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Quiz: Bottom Plate excluding Critic
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6.8.2 Construction Records May incl
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6.9 Reports 6.9.1 Recommended repai
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113 Inspection Frequency Considerat
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115 Internal inspection is required
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API 653 Initial Inspection Interval
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119 API 653 Initial Inspection Inte
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125 API 653 Subsequent Inspection I
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127 API 653 Subsequent Inspection I
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129 Steps for corrosion rate calcul
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131 Finally ‐ Calculate Subsequen
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API 653 Subsequent Inspection Inter
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Page 143 and 144: 143 Comparison Direct Measurements
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Page 167 and 168: 9.13 Repair/Replacement of Floating
Page 169 and 170: 9.14.5 Installation Procedure 9.14.
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Page 173 and 174: 10.3.2 Bottoms 10.3.2.1 Deseam lapw
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Page 191 and 192: 12.5 Measured Settlement (During Hy
Page 193 and 194: SECTION 13 - MARKING AND RECORD KEE
Page 195 and 196: 13.3 Certification Documentation of
Page 197 and 198: ANS: ANS: Charlie Chong/ Fion Zhang
Page 199 and 200: B.2.2.3 Differential Settlement (ou
Page 201 and 202: B.2.3 Edge settlement B.2.3.1 Occur
Page 203 and 204: APPENDIX C CHECKLISTS FOR TANK INSP
Page 205 and 206: APPENDIX E TECHNICAL INQUIRIES This
Page 207 and 208: G.2.6 qualification test: The demon
Page 209 and 210: G.3 An explanation of Tank Bottom E
Page 211 and 212: API 653 CODE QUIZ Charlie Chong/ Fi
Page 213 and 214: Q3. A condition that exists when it
Page 215 and 216: Q7. What primary factor determines
Page 217 and 218: Q11. What type of contour cut (if a
Page 219 and 220: Q15. API-653 (Section 12) requires
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Page 223 and 224: Q19. A bulge is found on the tank f
Page 225 and 226: Q16. d (1/2") [Paragraph 4.3.3 page
Page 227 and 228: Section 2 650 Summary 2007 Charlie
Page 229 and 230: Charlie Chong/ Fion Zhang
Page 231 and 232: Good Luck! Charlie Chong/ Fion Zhan
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Understanding API ICP653 Reading 7-Worksheet-04 Part1

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