This content provides you with a example Tower Inspection and Test Plan. You may modify this Column ITP to meet your purchase order specifications. You may also review the Pressure vessel ITP article and download the related ITP and use with this draft ITP to generate your required tower ITP.
| Tower Inspection and Test Plan Task | Vendor | TPI Inspection | Client |
|---|---|---|---|
| Tower Pre-inspection meeting, when specified by Purchaser/Owner | H | H | H |
| Tower Mill test reports including impact test and non-destructive test, when specified | H | W/R | R |
| Tower Material identification and markings | H | W | R |
| Tower WPS/PQR, Welders qualifications (records or welder's list)(Note: If welder's ability is judged as doubtful, a new qualification(WQT) test will be required) | H | R | R |
| Tower Weld preparation and fit-up, back chip inspection | H | S | R |
| Tower Execution of major repairs, when issued NC | H | H | R |
| Tower Visual and dimensional inspection prior to heat treatment, when applicable | H | S | R |
| Tower Heat treatment record review, when applicable | H | R | R |
| Tower Alloy verification, when specified | H | W | R |
| Tower Ferrite check for weld, when specified | H | W | R |
| Tower Non-destructive testing (RT, UT, MT, PT when applicable) | H | S | R |
| Tower Review of radiographs, when applicable | H | R | R |
| Tower Refractory anchor and lining inspection, when specified | H | S | R |
| Tower Production weld test, when require | H | W | R |
| Tower Hardness measurements in final condition, when specified | H | S/R | R |
| Tower Visual and dimensional inspection during fabrication | H | S | R |
| Tower Reinforcing pad air-soap test | H | W/R | R |
| Tower Leak test for sleeve type nozzle, when applicable | H | W | R |
| Tower Hydrostatic test | H | H | R |
| Tower Installation of internals, when applicable | H | W | R |
| Tower Other Job Requirement Inspection Record (when specified) | H | W | R |
| Tower Surface preparation prior to painting, coating, lining | H | W | R |
| Tower Complete draining and nitrogen filling or desiccant or volatile corrosion inhibitor treatment check | H | W | R |
| Tower Final visual inspection (including Painting (color & thickness), coating, preservation, lining, picking, nameplate, tagging, marking, and Aux items like spare parts, bolts, etc.) | H | H | R |
| Tower Documentation review prior to release at local shop(Final activity of Technical Inspection) | H | H | R |
| Pre-shipment Inspection | H | H | R |
H: Hold Point implies that relevant production activities shall not proceed until the continuation of work is permitted by Purchaser. (Notification req'd)
W: Witness point implies that Purchaser intends to witness the designated inspection feature. If Purchaser decides not to witness the relevant feature, production can proceed without permission of Purchaser. (Notification req'd)
S: Witness, but spot check basis. Initial operation will be witness point and subsequent operation will be witnessed at discretion of Purchaser considering the results of previous inspection. (Random Inspection : Notification not req'd)
R: Review inspection & test records (Notification not req'd)
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