Source: SFI/IWE 1.08:2018 - Table 3
11 steps to prepare a hydrotest package
🧪 Hydrostatic Test Package Preparation Guide
Inspection Point in ITP – QA/QC Controlled Document
🔧 General Requirements
Hydrostatic testing is an essential inspection activity listed in the Inspection and Test Plan (ITP). Before performing a hydrotest, the following conditions must be fulfilled:
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The hydrotest procedure has been approved by the client and/or consultant.
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All welding activities within the test boundary must be completed and inspected by all parties.
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Non-Destructive Testing (NDT) must be performed according to the project specification, with acceptable results.
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All relevant documentation must be collected for inclusion in the test package.
📦 11 Steps to Prepare a Hydrotest Package
1. Cover Page
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Include project name, client, contractor, system name, line class, and test type.
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A sample form can be customized to suit your project format.
2. Content Sheet
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Provides a summary index of documents included.
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Pre-fill standard information (e.g., project name, test type) in templates to save time.
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Forms may be typed or handwritten at the site, depending on project practice.
3. Pre-Test Checklist
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Conduct this jointly with the client before pressurization.
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Items include valve positions, flange bolt checks, blinds installed, supports in place, etc.
4. Line List
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Include spool numbers, line numbers, service description, test pressure, and length.
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Inspector must check and sign each spool on the drawing.
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Use only approved drawings to prepare the test list.
5. Line Check
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Verify all piping spools are installed per the approved drawings.
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Mark or highlight test spools on isometric drawings and P&IDs.
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Confirm valve direction, check valve orientation, and isolate components not to be tested.
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Submit flagged drawings for client verification and signature.
6. Welding Data
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Include welding summary logs (WPS/PQR/WPQ) and NDT reports (RT, MT, PT, etc.).
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All visual and dimensional inspections should be satisfactory before pressure testing.
7. Material Traceability
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Ensure all materials and spools are traceable.
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Maintain MTCs and spool traceability records as part of the QA requirement.
8. Pressure Test Certificate
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Record actual test pressure, date/time, duration, and hold period.
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Use calibrated pressure gauges (within 6 months).
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Install two gauges: one at the highest point and one at a visible point for monitoring.
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Gauge range must be 1.5 to 4.0 times the test pressure per applicable code.
9. Pressure Chart Recorder (if required)
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Attach the pressure chart to the package for test record verification.
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Record should reflect start/hold/end time and pressure trend.
10. Temperature Record (Optional)
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Record ambient temperature or water temperature during testing.
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Useful for justifying pressure drops due to temperature changes.
11. Punch List
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Include any outstanding work or comments found during pre-test or testing.
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If no issues are found, create a "no comment" punch list endorsed by the client.
📤 Test Package Submission
Submit the complete hydrotest dossier to the client or third party for review and approval. The typical contents include:
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✅ Cover page
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✅ Hydrotest instruction or method statement
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✅ Pre-test checklist / Line check record
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✅ Line list
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✅ Marked P&ID and Isometric drawings (highlight test area)
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✅ Material traceability records
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✅ Welding summary and NDT reports
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✅ Pressure test certificate
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✅ Calibration certificates (pressure gauge, chart recorder, thermometer, etc.)
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✅ Photos of gauge reading at start/end of test (if required)
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✅ Final punch list (with or without comments)
💡 All documents should be scanned and compiled into a single PDF file for submission.
ASM Handbook Set
ASM Handbook Set (33 Volumes + Index)
Volume 1: Properties and Selection: Irons, Steels, and High-Performance Alloys
Volume 2: Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Volume 3: Alloy Phase Diagrams
Volume 4: Heat Treating
Volume 4A: Steel Heat Treating Fundamentals and Processes
Volume 4B: Heat Treating Technologies (shipping October 2014)
Volume 4C: Induction Heating and Heat Treating
Volume 4D: Heat Treating Irons & Steels (shipping October 2014)
Volume 5: Surface Engineering
Volume 5A: Thermal Spray Technology
Volume 6: Welding, Brazing and Soldering
Volume 6A: Welding Fundamentals and Processes
Volume 7: Powder Metal Technologies and Applications
Volume 8: Mechanical Testing and Evaluation
Volume 9: Metallography and Microstructures
Volume 10: Materials Characterization
Volume 11: Failure Analysis and Prevention
Volume 12: Fractography
Volume 13A: Corrosion: Fundamentals, Testing, and Protection
Volume 13B: Corrosion: Materials
Volume 13C: Corrosion: Environments and Industries
Volume 14A: Metalworking: Bulk Forming
Volume 14B: Metalworking: Sheet Forming
Volume 15: Casting
Volume 16: Machining
Volume 17: Nondestructive Evaluation and Quality Control
Volume 18: Friction, Lubrication, and Wear Technology
Volume 19: Fatigue and Fracture
Volume 20: Materials Selection and Design
Volume 21: Composites
Volume 22A: Fundamentals of Modeling for Metals Processing
Volume 22B: Metals Process Simulation
Volume 23: Materials for Medical Devices
Comprehensive Index to ASM Handbooks, Third Edition
Format: Hardbound, 33 Volume Set + Index
Publisher: ASM International
Published: 2014
Skid fabrication - inspection documents for QC
Following the topic, we would like to share you the quality document for small skid.
Inspection check list
- Procedures and inspection should prepare and included in your hand, NDE procedure, NDE map, welding map and NDE plan also prepared.
- You should make a content of procedures for control, type of inspection report, below is sample list of procedure.
Document control
- Too many drawings/ document per each skid, so it should carefully update with latest revision,
- Line list should be updated and control the piping spool number, all spools to be identified in the test package later.
- Shop drawing, document submission to be documented revision number, date of submission, date of return, and approval code, etc.
Inspection report
- To control and monitor all inspection reports, the assigned coding number should generate before starting issue.
Welding summary
- For structural steel
- For piping
Material receiving inspection
- MRIR for piping, bolting, gasket, fitting
- MRIR for consumable
- MRIR for structural steel
- MRIR for electric & instrument
- Material traceability
Visual inspection
- For piping
- For structure
Dimensional inspection
- Base frame - structure.
- Piping spool, loose items.
- Tie-in point report.
NDE Reports
- MT/PT reports
- RT/UT reports
- Hardness test, ferrite test (if any)
Coating inspection report
- Blasting and painting inspection report
- Pickling and passivation report
- Holiday test, salt test, dust test, pull of test (if any)
Testing reportHydrotest & Pneumatic test
- See hydrotest & pneumatic test procedure, prepare the test package, and update the test package.
Factory acceptance test
- Tie-in point report.
- Bolt tightening report.
- Leak test for instrument air.
- Leak test for pipe system.
- Function test for valve, equipment.
Packing report
- Important do not miss during inspection: to check all the packing list, listed out all items installed or mounting on skids, spare part items, loose items, location of packing items, protection, preservation, etc.
- Record all packing and photos evident should be kept.
- To make sure all package had been checked and verified by all parties, and signed off in the packing list before moving next stage of the issue "IRN - Inspection Release Note".
Inspection release note
- The IRN will be issued by Client or their representative inspector will issue it because the inspection point is Hold Point.
- This is an evident document for payment and confirmation that had been inspection before shipping.
Final Manufacturer data book
- Collect all procedure, instruction used for fabrication and inspection record to the final MDR.
- MDR Index / content will be confirmed with Client before making.
- Construction drawings will be made an as-built for reviewing and approval.
- All outstanding work list should close out or update in the master list for further actions.
- Guide to make a sample MDR.
Storage and submission
- Retention of document shall follow your quality system, such 3 years or 5 years.
- Document submit eight hard copy or soft copy or both to your client.
- Do not submit via email with many files attached in the email, it should combine into a “.ZIP” folder, not compressed “.RAR” file.
- Submission should use a secured platform such Google One, SharePoint, WeTransfer.
ASME Interpretation - xem các giải thích từ ASME
Link hướng dẫn bạn kiểm tra các giải thích từ Quy chuẩn/ yêu cầu của ASME.
--> https://cstools.asme.org/Interpretation/SearchInterpretation.cfm.
Đa số anh em tìm kiếm các giải thích cho các Quy chuẩn như ASME IX, ASME VIII ,...
Ví dụ, bạn cần hiểu về QW-200.4 trong ASME IX thì tìm đúng code và mở giải thich để in file pdf:
___Chọn Quy chuẩn tại ["Standard Designation": BPV Section IX"] > "Search" để chọn tất cả > "Ctrl + F" để tìm các giải thích phù hợp > xem kết quả QW-200.4 - Material Combination.
Còn rất nhiều các giải thích khác, bạn tự tìm nhé! Kể cả ASME B31.1/31.3, ...
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