
Measure degradation before it decides for you
Corrosion Testing & Assessment
Corrosion testing measures how metallic materials, products and components degrade over time — and whether they will reach their projected design life. Metlab combines laboratory corrosion testing with on-site corrosion surveys, mapping and corrosion-under-insulation (CUI) inspection across Ireland.

Corrosion inspection carried out on site
Overview
Corrosion is the quiet failure mode: it consumes wall thickness, undermines coatings and hides beneath insulation until equipment fails — bringing expensive repairs, unscheduled downtime and reputational damage with it. Testing and assessment are the only way to know where an asset actually sits on its degradation curve.
Metlab’s corrosion services span the laboratory and the field: from testing materials and coatings, to mapping wall loss on live plant, to targeted CUI programmes that find the damage insulation conceals. Findings feed directly into maintenance and integrity decisions.
Assessment & survey
Corrosion assessment surveys
Extent and severity of corrosion on structures and plant, with deterioration prediction
Corrosion under insulation (CUI) surveys
Targeted detection of hidden corrosion beneath lagging
Corrosion mapping
Encoded UT C-scan mapping of vessels, tanks and pipework
Tank floor MFL scanning
Magnetic flux leakage screening of storage tank floors
Laboratory & materials
Materials degradation testing
Establishing corrosion behaviour of materials and products
Coating condition & inspection
Protective system performance assessment
Failure analysis
Root-cause investigation of corrosion-driven failures
Passivation verification
Stainless steel passive-layer confirmation for hygienic plant
Standards & schemes
Work is examined against the designations your specification cites.
| Standard | What it covers |
|---|---|
| ISO 9227 context | Salt spray and accelerated corrosion testing of coatings and materials |
| EEMUA 159 | Storage tank corrosion assessment and inspection |
| ISO/IEC 17025 (INAB Reg. 398T) | Accredited laboratory testing behind reported results |
Why it matters
01
Design life is a projection, not a promise
Corrosion testing is the only way to confirm materials will reach their projected design life in the environment they actually live in.
02
CUI is the classic surprise failure
Corrosion under insulation attacks exactly where no one looks. A structured CUI programme replaces luck with data on the highest-risk circuits.
03
From finding to decision
Because assessment, NDT quantification and materials analysis sit in one organisation, a corrosion finding becomes a costed integrity decision — not just a photograph in a report.
Common questions
Asked before every engagement.
Something more specific? A specialist will answer it directly.
Ask usWhich industries use corrosion testing?
Any sector where metallic degradation threatens safety or availability — oil and gas, pharmaceutical, marine, transport, power, water and construction. Both new-build material selection and in-service asset management rely on it.
What is corrosion under insulation and why is it dangerous?
CUI is corrosion of pipework and vessels beneath thermal insulation, driven by trapped moisture. It is dangerous because the damage is invisible until insulation is removed or the component leaks — targeted survey programmes inspect the highest-risk locations first.
What does a corrosion survey deliver?
A written assessment of the extent and severity of corrosion, quantified wall-loss data where measured, deterioration predictions, and prioritised recommendations — evidence an asset owner can plan and budget against.
Testing · Inspection · Certification
Need corrosion testing?
Send the specification or describe the asset — a specialist replies with method, price and turnaround.