Stack Inspection and Test Plan

This content provides you with a example stack inspection and test plan. You need to modify this stack ITP to meet your purchase order requirements.

Stack Inspection and Test Plan TaskVendorTPI InspectionClient
Stack Mill test reports including impact test and non-destructive test, when specifiedHRR
Stack Material identification and markingsHW/RR
Stack WPS/PQR, Welders qualifications (records or welder's list)HWR
Stack Weld preparation and fit-up, back chip inspectionHSR
Stack Execution of major repairs, when issued NCRHHR
Stack Ferrite check for weld, when specifiedHSR
Stack Non-destructive testing (RT, UT, MT, PT when applicable)HSR
Stack Review of radiographs, when applicableHWR
Stack Production weld test, when requiredHWR
Stack Hardness measurements in final condition, when specifiedHSR
Stack Visual and dimensional inspection during fabricationHSR
Stack Reinforcing pad air-soap testHSR
Stack Other Job Requirement Inspection Record (when specified)HWR
Stack Surface preparation prior to painting, coating, liningHSR
Stack Final visual inspection (including Painting (color & thickness), coating, preservation lining, picking, nameplate, tagging, marking, and Aux items like spare parts, bolts, etc.)HHR
Stack Documentation review prior to release at local shop(Final activity of Technical InspectionHHR
Stack Pre-shipment InspectionHHR

Stack Inspection and Test Plan Points

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)

General Note for Stack ITP:

1) Stack Witness/hold point by Code Inspector, when applied by Code Stamp/Local Regulation, is to comply with its requirements and to specify in Vendor's ITP.

2) Type of Inspection by Stack Purchaser may be changed according to equipment criticality and vendor QC evaluation at job stage.

3) When requested in the requisition, detailed Stack ITP shall be submitted by Vendor.

4) Monitoring/Observation of Stack Vendor shop daily routine works (i.e. Storage of materials & welding consumables, Adherence to approved procedures, Testing tool calibration check, Welder/NDE Operator performance & qualification,workmanship,cleanliness and etc.) shall be done by Purchaser during inspection visit.

5) Final Stack Visual Inspection/Documentation Review/Pre-Shipment Inspection may be combined within one time visit.


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