Understanding API ICP653 Reading 7-Worksheet-04 Part1

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B.3 Determination of Acceptable Settlement B.3.1 General Greater settlement may be acceptable in tanks with a successful service history than new construction standards allow. Each condition must be evaluated, based on service conditions, construction materials, soil characteristics, foundation design and prior service history. B.3.2 Shell Settlement Determine the maximum out-of-plane deflection. The formula for calculating the maximum permissible deflection is shown on page B-4. Requires technical assistance. B.4 Repairs If conditions beyond acceptable conditions are found, a rigorous stress analysis should be performed to evaluate the deformed profile, or repairs conducted. Various repair techniques are acceptable. (See Section 9.10 for helpful details). Several new figures have been added to Appendix B, however the bases for the new figures and requirements have been challenged. There is no bases for the information in the figures.. The user is left to his own devices as how to use this information. Charlie Chong/ Fion Zhang
APPENDIX C CHECKLISTS FOR TANK INSPECTION Tables C-1 and C-2 are sample checklists illustrating tank components and auxiliary items that deserve consideration during internal/external inspections. Use these as guidance items only. Numerous items need not be checked by the inspector, but rather by plant personnel. Table C-1 (In Service Inspection checklist) includes 111 separate items. Table C-2 (Out-of-Service Inspection Checklist) includes 248 separate items. 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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125 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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139 Factors to Consider in a RBI As
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141 RBI Inspection • RBI Assessme
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143 Comparison Direct Measurements
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145 Questions ?
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7.3.1.2 If plates are not identifie
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8.5 Shell Penetrations 8.5.1 New/re
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Page 153 and 154: 9.2.3 Weld Joint Design 9.2.3.1 Rep
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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 and 176: 10.3.5 Piece Marking 10.3.5.1 Shell
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Page 179 and 180: 10.4.3 Bottoms 10.4.3.2 Weld shell
Page 181 and 182: SECTION 11 - WELDING 11.1 Welding Q
Page 183 and 184: 12.1.2 Shell Penetrations 12.1.2.1
Page 185 and 186: 12.1.6 Shell-to Bottom 12.1.6.1 Joi
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: B.2.3 Edge settlement B.2.3.1 Occur
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
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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