Third-Party Inspection (General)
Guardian Middle East LLC delivers UAF-accredited third-party inspection services in Qatar under ISO/IEC 17020:2012 (Type A — third-party independent). General third-party inspection covers pre-shipment inspection (PSI), factory acceptance testing (FAT) and site acceptance testing (SAT) witness, vendor surveillance during manufacture, supplier verification before contract award, project-specific third-party witness inspection, and any general engagement requiring independent third-party verification. Engagements typically draw on one or more specialised scopes — welding, NDT, lifting equipment, pressure vessels, pipeline/piping, electrical installation, construction/civil. Reports issued under TNV Global Limited’s UAF-Accredited Inspection Body Certificate 5241222IB04.
Accreditation Chain (Inherited from Hub)
Issuing Inspection Body: TNV Global Limited. Accreditation: UAF — Inspection Body Certificate 5241222IB04. Validity: 28 December 2024 – 27 December 2028. Standard: ISO/IEC 17020:2012 (Type A — third-party independent). Local representation in Qatar: Guardian Middle East LLC (QFC Licence 03870). The applicable accreditation framework explains the inspection body structure, accreditation status, and local representation model.
Third-party inspection reports are issued under TNV Global Limited’s name and UAF-accredited mark. See Inspection page for the full accreditation framework, partnership model, and engagement model that governs all inspection scopes.
Service Categories
Third-party inspection covers a range of engagement types. The applicable technical scope and code framework are determined by the items being inspected and the project context — typically integrating one or more of Guardian’s seven specialised inspection scopes.
Service Type | Description |
Pre-Shipment Inspection (PSI) | Inspection of completed items at the manufacturer’s premises immediately before shipment to the buyer or to site. Verifies conformity to specification, provides documented evidence of quality, supports buyer’s release decision and shipment authorisation. Common in international procurement of equipment, materials, and assemblies. |
Factory Acceptance Testing (FAT) Witness | Independent witness during the manufacturer’s FAT — pre-defined functional and performance tests at the manufacturer’s premises before shipment. Common for switchgear, packaged equipment, control panels, custom-engineered items. |
Site Acceptance Testing (SAT) Witness | Independent witness during SAT after equipment installation at site — pre-defined commissioning tests verifying the equipment performs as specified in its installed configuration. Common for major equipment requiring site-specific verification. |
Vendor Surveillance | Periodic third-party inspection during manufacture — typically over the manufacturing duration, with multiple visits at key milestones. Provides ongoing visibility into manufacturing progress and quality, identifying issues earlier than PSI alone. Common in long-lead-time equipment, complex fabrications, multi-vendor projects. |
Supplier Verification | Independent verification of a supplier’s capability before contract award — review of quality system, manufacturing capabilities, personnel qualifications, equipment, prior project performance. Useful for buyers evaluating new suppliers or qualifying suppliers for critical procurement. |
Pre-Contract Inspection | Inspection of available equipment / used assets prior to purchase — establishing baseline condition, identifying defects, supporting purchase decision-making and price negotiation. |
Project Third-Party Witness | Independent third-party witness inspection during major project execution — typically as part of an owner’s project quality assurance framework, providing independent verification at defined hold-points and witness-points across the project. |
Damage / Loss / Insurance Inspection | Independent inspection following equipment damage, loss in transit, or insurance claim — establishing condition, identifying causation contributors (without being the loss adjuster), supporting insurance and remediation processes. |
Expediting (Inspection-Aligned) | Inspection-aligned expediting — focused on physical progress verification at vendor premises rather than commercial expediting (commercial expediting is outside Guardian’s scope; for that, an expediting agency is appropriate). |
Integration with Specialized Scopes
Third-party inspection engagements typically integrate one or more of Guardian’s specialised inspection scopes. The general engagement provides the framework; the specialised scope provides the technical content:
Specialized Scope | Typical Third-Party Inspection Application |
Welding Inspection | PSI of welded fabrications, FAT of welded structural assemblies, vendor surveillance during welding-intensive manufacture. See Inspection welding inspection. |
NDT Inspection | PSI verification of NDT records, witness of NDT during manufacture, third-party verification of welds prior to shipment. See Inspection ndt Inspection. |
Lifting Equipment | Pre-purchase inspection of cranes / hoists / accessories, PSI of new lifting equipment before shipment, vendor surveillance during lifting equipment manufacture. See Inspection lifting equipment. |
Pressure Vessels | New construction PSI before shipment, FAT witness during pressure vessel manufacture, vendor surveillance during fabrication. See Inspection pressure vessels. |
Pipeline & Piping | PSI of pre-fabricated pipe spools, FAT of skid-mounted piping packages, vendor surveillance during fabrication. See Inspection pipeline piping. |
Electrical Installation | FAT/SAT witness for switchgear and packaged equipment, vendor surveillance during switchgear manufacture, supplier verification for electrical equipment vendors. See Inspection electrical installation. |
Construction & Civil | PSI of pre-cast elements, vendor surveillance during structural steel fabrication, FAT of building system components. See Inspection construction civil. |
Inspector deployment is matched to the technical scope. A pressure vessel PSI engagement deploys API 510-certified inspectors; a structural steel PSI engagement deploys AWS CWI / CSWIP inspectors; a switchgear FAT deploys electrical inspection competence. The cross-discipline integration is one of Guardian’s principal value propositions for general third-party inspection engagements.
Engagement Model — Third-Party Inspection
Third-party inspection follows the standard 5-step engagement model documented in /inspection/ §16, with specific adaptations for general third-party inspection contexts:
Step 1 — Inquiry & Scope Definition
Submit via process inquiry-and-quotation or info@guardian.qa. Engagement intake covers:
- Type of third-party inspection (PSI, FAT/SAT, vendor surveillance, supplier verification, etc.).
- Items / equipment to be inspected — including specifications and applicable code framework.
- Manufacturer / vendor location(s) — onshore Qatar, regional, or international.
- Required deliverables — release for shipment, FAT report, surveillance reports, etc.
- Project context — stand-alone engagement vs project-integrated engagement.
- Indicative timeline and required completion date.
Step 2 — Contract & Inspection Plan
- Contract executed with Guardian Middle East LLC — defines scope, deliverables, fees, engagement-specific terms.
- Inspection plan agreed — detailing visits, hold-points, witness-points, methodology, deliverables.
- Customer due diligence (CDD/EDD) completed per Guardian AML/CFT framework — see /legal/aml-cft-notice/.
- Inspector COI declarations signed — covering relationships with the manufacturer/vendor being inspected.
Step 3 — Inspection Execution
- Visit-by-visit inspection at agreed hold-points / witness-points — typically multiple visits across the engagement period for vendor surveillance; single visit for PSI.
- Inspection records maintained per visit — findings, photographs, document review, test witness.
- Communication with client during the engagement — significant findings communicated promptly.
Step 4 — Inspection Report
- Inspection report per visit during the engagement — formal documentation of findings.
- Final inspection report at engagement completion — synthesising the engagement findings.
- Release / hold notice as appropriate — formal release for shipment, or formal hold pending resolution of identified issues.
Step 5 — Follow-up Activities
- Re-inspection of corrected items where required.
- Documentation handover to client — including all inspection records as part of the delivered package.
- Where relevant, support to client’s downstream activities (subject to non-consultancy boundary).
Standards Framework
Third-party inspection draws on multiple standards depending on the items being inspected:
Standard / Reference | Application |
ISO/IEC 17020:2012 | Foundational standard for the inspection body’s operation and impartiality framework. |
ISO 2859 / ISO 3951 | Sampling procedures for inspection by attributes / variables — referenced where statistical sampling is part of the inspection methodology. |
Project specifications | Project-specific specifications, drawings, ITPs are typically the primary inspection reference — supported by the underlying code references below. |
ASME codes | ASME Section IX (welding qualifications), Section V (NDT), Section VIII (pressure vessels), B31 series (piping), B30 series (lifting) — applied per the items being inspected. |
API standards | API 510 / 570 / 1104 / 580 / 581 / 579 — applied per the items being inspected. |
AWS / ISO welding standards | AWS D1.1 / D1.2 / D1.6, ISO 3834 / 9606 / 15614 — applied per the items being inspected. |
ASNT / ISO 9712 | NDT personnel certification frameworks — applied per the inspectors deployed. |
ACI / AISC / QCS / Eurocode | Construction codes — applied per construction-related third-party inspection. |
IEC standards | IEC 60364 / 61936 / 62305 / 60079 — applied per electrical-related third-party inspection. |
Manufacturer specifications | Equipment manufacturer specifications, instruction manuals, factory acceptance test procedures — referenced as engagement-specific inspection input. |
The applicable standards framework is identified at the inspection plan stage based on the items being inspected and the project specification.
Typical Use Cases
- Buyer of equipment from international vendor — third-party PSI before shipment provides independent verification of vendor’s quality, identifies non-conformities before payment release.
- EPC contractor third-party witness — third-party witness during manufacture / FAT / SAT supports the EPC contractor’s quality assurance to the project owner.
- Project owner’s project quality assurance — third-party witness inspection across the project supports owner’s independent verification of contractor’s work.
- New supplier qualification — supplier verification before contract award supports buyer’s qualification decision for new or strategically important suppliers.
- Long-lead-time equipment vendor surveillance — periodic surveillance throughout manufacturing duration provides ongoing visibility and early issue identification.
- Used equipment pre-purchase — independent inspection of used equipment supports purchase price negotiation and risk identification.
- Insurance claim inspection — independent inspection following damage / loss supports insurance claim process.
- Pre-commissioning third-party verification — independent verification before commissioning of new facilities or equipment, complementing project owner’s own verification.
Why Choose Guardian for Third-Party Inspection
- UAF-accredited reports under TNV Global Limited’s Inspection Body Cert 5241222IB04 — internationally recognised under the IAF MLA Inspection arrangement, providing report value beyond Qatar.
- Type A independence — third-party independent — required for inspection reports relied on by buyers, regulators, project owners, and insurers.
- Multi-discipline capability — welding, NDT, lifting, pressure equipment, piping/pipelines, electrical, construction — single inspection body for cross-discipline engagements.
- Local Qatar presence — Guardian Middle East LLC (QFC-licensed) provides Qatar-side contracting, inspection scheduling, and on-the-ground capability.
- International network — through TNV Global Limited and partner network, inspection capability extends to international vendor locations as required.
- Comprehensive reporting — inspection reports per visit, formal release/hold notices, photographic records — supporting documentary trail for client procurement and audit.
- Engagement flexibility — single PSI visit through to multi-month vendor surveillance — scaled to engagement requirement.
- Absolute non-consultancy commitment — preserves the integrity and stakeholder value of the inspection report. Guardian does not advise the vendor, design corrections, or supervise vendor operations.
GET STARTED — CONTACT GUARDIAN
Guardian Middle East LLC | Serving the Middle East
QFC Licence 03870 · Doha, Qatar
Location: Abo Hamour Area, Doha, Qatar
P.O. Box: 23277, Doha, Qatar
Mobile: +974 7770 2602 | +974 7213 7770
Email: info@guardian.qa
Website: www.guardian.qa
Or submit an enquiry: → Contact
Frequently Asked Questions
Inspection conducted by an independent body — neither the supplier (first-party) nor the buyer (second-party) — providing impartial verification that items conform to specification. Under ISO/IEC 17020:2012, third-party inspection bodies are classified as Type A — fully independent of both supplier and buyer interests. Type A reports carry the highest stakeholder credibility for use by regulators, insurers, and downstream parties.
Inspection of completed items at the manufacturer's premises immediately before shipment to the buyer or to site. Verifies conformity to specification (visual, dimensional, document review, test witness as applicable), provides documented evidence of quality, supports buyer's release decision and shipment authorisation. Common in international procurement where the buyer cannot physically inspect at the manufacturer.
FAT (Factory Acceptance Testing) — pre-defined functional/performance tests conducted at the manufacturer's premises before shipment. Verifies the equipment performs as specified before leaving the factory. SAT (Site Acceptance Testing) — equivalent tests after installation at site — verifies the equipment performs in its installed configuration. Both are typically witnessed by an independent third party for documented evidence.
Yes — through TNV Global Limited's network and partner inspectors, inspection capability extends to international vendor locations. The inspection report is issued under TNV's UAF-accredited mark regardless of the inspection location. International engagements are scoped at the inspection plan stage, including travel, scheduling, and inspector deployment logistics.
Vendor surveillance is periodic — multiple visits during manufacture, identifying issues at the stage they arise rather than only at completion. PSI is single-visit — at completion before shipment. Vendor surveillance is preferable for long-lead-time, complex, or critical equipment where issues identified at PSI may be too late to remediate without significant project impact. Cost-benefit favours surveillance for higher-stakes equipment.
Yes — supplier verification before contract award reviews the supplier's quality system, manufacturing capabilities, personnel qualifications, equipment, and prior project performance. Output is an independent assessment supporting the buyer's qualification decision. Useful for new suppliers or strategically important suppliers — but it is verification, not consultancy. We do not advise the supplier on improvements (which is the supplier's responsibility, supported by a separate consultancy if desired).
Standard third-party inspection clauses are common in supply contracts — buyers typically include them at contract negotiation. If the inspection right is not in the contract, the supplier may decline access. The buyer should confirm the contract includes appropriate third-party inspection rights. We can advise on standard inspection clauses (factual reference to industry standard practice — not contract drafting).
No. Guardian / TNV operate under an absolute non-consultancy commitment. Our inspectors identify non-conformities clearly against specification — but do not advise the supplier on remedies. The supplier's resolution of identified non-conformities is the supplier's responsibility (within the contract framework). We re-inspect upon notification that the supplier has remediated, verifying the remedy meets the specification.
Inspection-aligned physical-progress expediting (verifying physical progress at vendor premises) is within scope. Commercial expediting (managing vendor delivery commitments, schedule pressure, payment milestones) is outside Guardian's scope — for that engagement, an expediting agency is more appropriate. Combined inspection + expediting engagements are sometimes structured with two parallel service providers — Guardian for inspection, an expediting agency for commercial expediting.
Submit an inquiry via /process/inquiry-and-quotation/ — selecting 'Inspection Services' as engagement type and 'Third-Party Inspection' as scope. Or email inspection@guardian.qa with: type of third-party inspection (PSI, FAT/SAT, surveillance, supplier verification, etc.), items being inspected, applicable specifications/codes, vendor location(s), required deliverables, indicative timeline. Specifications and project documentation help us scope accurately.