Third Party Inspection for Ground Storage Tank-

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            Reference Documents- 1.     Design code 2.     Purchase order specification 3.     Purchaser's standards 4.     Approved drawings 5.     API 650 6.     API 620 7.     API 653 8.     BS 2654 Inspection Activities from start to finish-              Material Inspection            Fabrication Inspection            Plate Preparation            Shell Courses and Base Plates containing Welded Seams            Post Weld Heat Treatment of Hot Formed Components            Assembly Inspection             Painting and Coating              ...
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Important Point For Pressure Vessel Inspector-E-2

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 CORROSION RATES AND INSPECTION INTERVALS

The Inspector must be able to calculate:

a) Metal Loss (including corrosion averaging) (API 510, Para 7.4)

b) Corrosion Rates (API 510, Para 7.1)

c) Remaining Corrosion Allowance (API 510, Para 7.1)

Remaining Corrosion Allowance = t actual – t required

d) Remaining Service Life (API 510, Para 7.2)

e) Inspection Interval (API 510, Section 6)

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