ASME Code Case 181

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Charlie ChongB31 Case 181 2 (Approval Date: January 4,2012) Use of Alternative UltrasonicExamination Acceptance Criteria in ASMEB31.3
Charlie ChongB31 Case 181-2Original Inquiry: Under what conditions and limitations may alternativeUT acceptance criteria apply in lieu of those described in para.344.6.2 of ASME B31.3?
Page 1 and 2: ASME Code Case on Use of Alternativ
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Page 5 and 6: Charlie ChongB31 CASE 181-1CASES OF
Page 7 and 8: ASME B31.3344.6 Ultrasonic Examinat
Page 9 and 10: 344.6.2 Acceptance Criteria. A line
Page 11 and 12: (c) The ultrasonic examination shal
Page 13 and 14: Charlie ChongThe qualification bloc
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Page 19 and 20: Charlie ChongGENERAL NOTES:(a)t = t
Page 21 and 22: Charlie ChongTABLE 2FLAW ACCEPTANCE
Page 23 and 24: Charlie Chong(d) The ultrasonic exa
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Page 31 and 32: Charlie Chong(c) Alternatively, oth
Page 33 and 34: (b) Multiple Flaws(1) Discontinuous
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Page 39 and 40: Charlie Chong(d) With the owner’s
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Page 47 and 48: Charlie Chong4) Examinationa)The in
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Charlie ChongStored valves shall be
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(b) Category M Fluid Service: a flu
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1.0 Valve BodyThe valve body, somet
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5 Valve Certification and Retesting
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Charlie Chong/ Fion Zhang
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Charlie Chong/ Fion Zhang
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ASME Code Case 181

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