Understanding API ICP653 Reading 7-Worksheet-04 Part1

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10.4 Reconstruction 10.4.2.1 Welding notes as follows: a. Vertical weld joints should not aligned with joints located in bottom plates. b. No welding over heat affected zones (from original tank welds), except where new joints cross original joints. c. Refer to Fig. 9-1 for weld spacing. 10.4.2.2 Tank and Structural Attachment Welding Use processes specified in <strong>API</strong>-650. Charlie Chong/ Fion Zhang
10.4.2.3 Specific welding notes: a. No welding is allowed when parts to be welded are wet from rain, snow or ice or when rain or snow is falling, or during high wind conditions (unless the work is shielded). Caution this is a common practice and should be avoided. b. No welding is permitted when the base metal is below 0°F. c. If the base metal temperature is between 0° and 32°F or the metal "t" is in excess of 1", the base metal within 3" of welding shall be pre-heated to approximately 140°F. 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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Ctrl + Shift + S = save a copy Ctrl
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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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Page 125 and 126: 125 API 653 Subsequent Inspection I
Page 129 and 130: 129 Steps for corrosion rate calcul
Page 131 and 132: 131 Finally ‐ Calculate Subsequen
Page 133 and 134: API 653 Subsequent Inspection Inter
Page 139 and 140: 139 Factors to Consider in a RBI As
Page 141 and 142: 141 RBI Inspection • RBI Assessme
Page 143 and 144: 143 Comparison Direct Measurements
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Page 147 and 148: 7.3.1.2 If plates are not identifie
Page 149 and 150: 8.5 Shell Penetrations 8.5.1 New/re
Page 151 and 152: 9.2 Removal and Replacement - Shell
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Page 157 and 158: 9.3.3 Lapped patch plates may be us
Page 159 and 160: 9.7 Repair of Shell Penetrations 9.
Page 161 and 162: 9.10 Repair of Tank Bottoms (Defini
Page 163 and 164: 9.10.2.2 New bearing plates are req
Page 165 and 166: 9.10.3.1 Additional Welded-on Plate
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
Page 175: 10.3.5 Piece Marking 10.3.5.1 Shell
Page 179 and 180: 10.4.3 Bottoms 10.4.3.2 Weld shell
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Page 183 and 184: 12.1.2 Shell Penetrations 12.1.2.1
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Page 187 and 188: 12.2.1.4 Each butt-weld annular pla
Page 189 and 190: 12.3.2.2 Shell Repair 12.3.2.2.1 We
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
Page 221 and 222: Q16. Calculate the minimum thicknes
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
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Section 2 650 Summary 2007 Charlie
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Good Luck! Charlie Chong/ Fion Zhan
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Understanding API ICP653 Reading 7-Worksheet-04 Part1

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