Visual Inspection (VT) is the most fundamental non-destructive testing method and often the first step in assessing the condition, integrity and compliance of engineering assets. When carried out by qualified inspectors using the correct techniques, Visual Inspection can reliably identify a wide range of surface defects, workmanship issues and service-related deterioration.
At AME, Visual Inspection is performed by trained and certified inspectors under a NATA-accredited quality system. Our inspections support asset owners across mining, oil and gas, infrastructure, manufacturing, transport and marine industries, providing early defect identification and practical guidance before issues escalate into failures or unplanned downtime.
What Is Visual Inspection?
Visual Inspection involves the systematic examination of a component, structure or weld using the human eye, often assisted by optical aids, lighting equipment and access tools. While it may appear simple, effective VT relies on technical knowledge, experience and a clear understanding of acceptance criteria.
AME inspectors assess surface condition, geometry, workmanship and evidence of in-service damage such as cracking, corrosion or distortion. Visual Inspection is frequently specified as a standalone inspection method or as a prerequisite to other NDT techniques.
Common discontinuities identified through VT include:
- Surface cracks and crack initiation points
- Weld profile defects (undercut, overlap, lack of fusion indicators)
- Corrosion, pitting and coating breakdown
- Mechanical damage and deformation
- Misalignment or incorrect fit-up
- Excessive wear or fretting
- Heat damage and surface oxidation
Because Visual Inspection can identify early warning signs before advanced damage develops, it plays a critical role in preventative maintenance and asset integrity programs.
Applications
Visual Inspection is applicable to almost all materials and asset types and is used extensively across:
- Welded structures and pressure components
- Structural steelwork and infrastructure assets
- Mining equipment and mobile plant
- Lifting equipment, cranes and rigging hardware
- Pipelines, tanks and vessels
- Rotating equipment and mechanical assemblies
- Fabrication workshops and site construction projects
- Marine structures and offshore components
VT is commonly used during fabrication, installation, commissioning, in-service inspection and failure investigations.
Visual Inspection Techniques We Use
AME applies a range of Visual Inspection techniques depending on access, lighting conditions and inspection objectives.
Direct Visual Inspection
Conducted with unaided vision or basic magnification at close range. This method is effective where access is clear and surfaces are easily observable.
Aided Visual Inspection
Uses tools such as mirrors, borescopes, magnifiers or cameras to inspect confined or partially obstructed areas.
Enhanced Lighting Inspection
Controlled lighting is used to improve contrast and reveal surface-breaking defects that may be difficult to see under ambient conditions.
Remote Visual Inspection (RVI)
Where direct access is restricted, remote devices allow internal or enclosed areas to be inspected without dismantling equipment.
Equipment and Inspection Setup
AME inspectors use appropriate lighting, optical aids and access equipment to ensure consistent and repeatable inspections. Surface condition, cleanliness and viewing angles are carefully controlled to maximise defect visibility. Where required, surface preparation is carried out to remove coatings, debris or contaminants that may obscure relevant indications.
AME Visual Inspection Process
Our Visual Inspection services follow the same structured approach used across all AME NDT and inspection activities:
We review drawings, specifications, applicable standards and client requirements to establish acceptance criteria and inspection coverage.
Surfaces are cleaned where required and access is arranged to ensure safe and effective viewing conditions.
Inspectors assess welds, components or structures methodically, paying close attention to high-stress areas and known failure locations.
Any observed defects or irregularities are evaluated against relevant standards and classified by severity.
Locations, dimensions and characteristics of defects are documented, including photographic evidence where required.
A clear inspection report is issued outlining findings, compliance status and recommended actions such as monitoring, repair or further NDT.
Benefits of Visual Inspection
- Suitable for all materials and asset types
- Cost-effective and efficient inspection method
- Early identification of defects and deterioration
- Minimal equipment and setup requirements
- Can be performed during operation shutdowns or routine maintenance
- Supports decision-making for further NDT or repairs
- Essential for compliance with fabrication and inspection standards
Limitations
Visual Inspection is limited to surface-visible conditions and relies heavily on inspector competence, access and lighting quality. Subsurface defects or very fine cracking may require supplementary NDT methods such as UT, PT or MPT to fully assess asset integrity.
Australian Standards and Compliance
AME Visual Inspection services are delivered under our NATA-accredited management system and align with applicable Australian and international standards, including:
| Document Number | Reference Title / Scope |
|---|---|
| AS ISO/IEC 17025 | General requirements for the competence of testing and calibration laboratories |
| AS ISO 9712 | Non-Destructive Testing – Qualification and certification of personnel |
| AS 1554 Series | Structural steel welding standards |
| AS 4037 | Pressure equipment – Examination and testing |
| ISO 17637 | Non-destructive testing of welds – Visual testing |
| ISO 5817 | Welding – Fusion-welded joints – Quality levels |
| AS/NZS 3788 | Pressure equipment – In-service inspection |
| OEM Procedures | According to asset type and client requirements |
This ensures inspection results are defensible, traceable and suitable for safety-critical applications.
Why Choose AME for Visual Inspection
- Certified ISO 9712 inspectors with practical industry experience
- NATA-accredited procedures and quality assurance
- Strong understanding of fabrication, welding and asset integrity
- Experience across mining, infrastructure, marine and heavy industry
- Clear, actionable reporting with photographic evidence
- Ability to integrate VT with UT, PT, MPT or engineering assessments
Other NDT Services We Offer
In addition to visual inspection services, AME provides a comprehensive range of complementary non-destructive testing (NDT) methods. These services allow clients to accurately assess the condition, structural integrity, and continued performance of critical plant, equipment, and components without causing damage or disruption to operations.
Our broader NDT capabilities include:
Ultrasonic Testing (UT) is a non-destructive testing technique used to examine the internal condition of materials and components. By transmitting high-frequency sound waves through the material, UT can detect hidden flaws, measure thickness, and identify subsurface discontinuities without causing damage to the asset.
➜ Learn more about AME’s Ultrasonic Testing Services
Dye Penetrant Testing (PT) is a non-destructive surface inspection method used to identify defects that are open to the surface of a material. By applying a visible or fluorescent penetrant liquid, this technique helps reveal cracks, porosity, and other surface-breaking flaws in non-magnetic materials such as stainless steel and aluminium components.
Eddy Current Testing (ET) is a non-destructive testing method that applies electromagnetic induction to evaluate conductive materials. The technique is commonly used to detect surface and near-surface discontinuities, measure coating thickness, and assess material characteristics in non-ferrous components.
➜ Learn more about AME’s Eddy Current Testing Services
Magnetic Particle Testing (MPT) is used to identify surface and near-surface defects in ferromagnetic materials. By applying a magnetic field and fine magnetic particles to the component, cracks, laps, seams, and other discontinuities become visible, allowing inspectors to assess the integrity of steel components and welded structures.
➜ Learn more about AME’s Magnetic Particle Testing Services
AME’s qualified technicians select and apply the most suitable inspection techniques for each application. Whether a single method or a combination of testing approaches is required, we provide reliable, standards-compliant results to support maintenance planning, certification requirements, and long-term asset management.
Book a Visual Inspection with AME
If you require reliable Visual Inspection for fabrication, maintenance or asset integrity assurance, AME can assist.
Contact our team to discuss your inspection requirements or request a quote. We’ll ensure your assets are assessed safely, efficiently and in full compliance with Australian Standards.
Contact AME Perth on (08) 9466 7444 or email info@asseteng.com.au or Kalgoorlie on (08) 9091 3553 or email to kalgoorlie@asseteng.com.au for further details.