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Method Statement: Installation of HDPE Soil, Waste & Vent (SWV) Vertical Stacks inspection and test plan example.

Inspection and Test Plan for Method Statement: Installation of HDPE Soil, Waste & Vent (SWV) Vertical Stacks

AI-assisted inspection and test plan connected to a method statement, with PDF and Excel export.

Published 22 Jun 2026 Rev. 00 1 views
About this ITP: Structured ITP for HDPE SWV stacks with hold/witness points: material verification, fusion jointing, support spacing, expansion, firestopping, and hydro/air testing.

More than a static template

Unlike a downloadable Word or PDF template, this ITP is an AI-assisted editable starting point directly connected to its method statement. Every inspection activity, hold point, and acceptance criterion is structured and ready to adapt to your project.

  • AI-assisted customization — Tailor inspection activities and acceptance criteria to your specific project scope.
  • Linked method statement — This ITP is connected to the corresponding method statement describing the work sequence.
  • Multiple export formats — Download as a formatted PDF or editable Excel spreadsheet.
  • Editable starting point, not a final document — Review and verify all content against your project specifications and standards before use.

What you can customize

When you save this ITP to your account, every inspection row becomes editable. You can add, remove, or modify:

  • Inspection activity — Description of what is being inspected.
  • Inspection type — Hold point (H), Witness point (W), Review (R), or Monitor (M).
  • Responsibility — Contractor, subcontractor, engineer, or client.
  • Frequency — How often the inspection occurs.
  • Acceptance criteria — Referenced standard or specification requirement.
  • Records — Forms, test reports, or checklists required as evidence.

Why this ITP is used

To verify that installation and testing of HDPE SWV stacks meet design, standards, and manufacturer requirements.

Who uses this inspection and test plan

Contractor QA/QC, Site Engineer, Fusion Supervisor, Firestop Applicator, and Client/TPI for surveillance and witnessing.

When this ITP is prepared and submitted

From material receipt through installation, firestopping, pressure testing, and final handover.

Who receives or approves this ITP

Client/Consultant and, where specified, Third-Party Inspector.

Inspection scope

Covers materials, equipment calibration, jointing (EF and butt), supports, expansion allowance, alignment, firestopping, and system tests.

Typical hold, witness, and review points

First-of-kind EF and butt-fusion joints; firestop pre-close; hydro/air test witnessing.

Typical inspection records

Material CoCs, fusion data logs, calibration certs, support/expansion checklists, firestop ITRs, test certificates, as-builts.

Important approval note

This ITP is an AI-assisted editable starting point, not a pre-approved document. Before use on any project, all inspection activities, hold points, and acceptance criteria must be reviewed and approved by the relevant parties (superintendent, principal contractor, or client representative) in accordance with your contract and project quality plan.

Always verify acceptance criteria against your applicable drawings, specifications, and regulatory requirements. Hold points must be confirmed with the relevant authority before work proceeds past that point.

Inspection and test plan

Activity Inspection / Test Acceptance Criteria Responsibility Record
Material receipt (pipes/fittings) CoC/Delivery inspection Conformity to BS EN 1519-1; no damage; correct OD/SDR; traceability labels present. QA/QC Engineer Material inspection report, CoC
Equipment calibration (EF & butt-fusion) Calibration verification Valid calibration (≤ 12 months) [Verify]; hot plate temperature within WPS; controller self-test passed. QA/QC Engineer Calibration certs, pre-use checklist
Pre-install coordination & setting-out Survey/marking verification Locations per approved drawings; tolerances within 5 mm [Verify]. Site Engineer Setting-out report
Core drilling & sleeves Core OD and sleeve check Cores to schedule; sleeve stand-off and seals per spec; no rebar compromise without approval. Construction Manager Permit-to-core, inspection sheet
EF jointing (first-of-kind then random sampling) EF data log review; visual joint check Parameters within barcode/WPS; indicators fully up; no contamination/burns; full cooling observed. Fusion Supervisor / QA/QC EF data file, EF checklist, photos
Butt-fusion jointing (first-of-kind then random) Bead inspection; parameter sheet review Bead uniform; misalignment ≤10% t or ≤1 mm; WPS parameters followed; cool time observed. Fusion Supervisor / QA/QC Fusion log, bead photos
Support and clamp installation Spacing/anchor check Spacing ≤ 1.5 m vertical [Verify]; anchors at floors; acoustic liners intact; torque per data sheet. Site Engineer / QA/QC Support checklist
Expansion device setting Stroke/mid-position verification Calculated ΔL accommodated; anchors/guides positioned to direct movement; device set mid-stroke. Site Engineer / QA/QC Expansion calculation sheet, photos
Vertical alignment Plumbness check ≤ 2 mm/m; ≤ 10 mm total per stack [Verify]. Surveyor / QA/QC Survey report
Fire-stopping penetrations Listing compliance & visual check System matches UL/ETA; annular space per listing; correct fixings; label affixed; FRL achieved. Firestop Applicator / QA/QC Firestop ITR, photos, system sheet
Stack testing (hydrostatic/air) Hydro/air test Water head 1.5–3.0 m for 15–30 min; no leaks/level drop. Air test only if allowed; pressure/hold per code; no decay/soap bubbles. QA/QC / TPI Test certificate, log, photos
Final documentation & handover Document completeness All records submitted and approved; as-builts reflect installed positions and joint IDs. Project Engineer / QA/QC Handover dossier

This table is a read-only public reference. Download the PDF or Excel version, or customize this ITP to edit it for your project.

Frequently asked questions

Typically 100% for first-of-kind then a defined percentage (e.g., ≥10%) per lot, subject to project specifications and risk assessment [Verify per project specifications].

Air testing is only acceptable where permitted by local authority and project specifications; otherwise perform a controlled water test per BS EN 12056 or project requirements.

Related method statement

This Inspection and Test Plan is associated with the Method Statement: Installation of HDPE Soil, Waste & Vent (SWV) Vertical Stacks method statement, which describes the step-by-step construction sequence, resources, materials, equipment, safety controls, and environmental controls for this activity.

View the Method Statement: Installation of HDPE Soil, Waste & Vent (SWV) Vertical Stacks method statement →

Continue with related inspection, method statement, article, and checklist resources.

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