A corrosion rate
for every defect.
With the corrosion rate in µm/year CMI enables the classification of each detected coating defect into five categories, fully aligned with EN ISO 15589-1.
Assess the severity of corrosion
in one number
Get the corrosion rate in µm/year related to a Corrosion Activity Class from CR 0 to CR 4 for each coating defect. One number that tells you not just that a risk exists, but how urgent it is.
Corrosion Activity reflects current activity, not remaining wall thickness.
From Corrosion Risk Index
to a corrosion rate for every defect.
| Defect | km | Class | Rate | Action |
|---|---|---|---|---|
| D-1042 | 4.0 | CR 4 | 312 μm/yr | Excavate |
| D-0987 | 0.9 | CR 3 | 180 μm/yr | Plan Repair |
| D-0631 | 1.7 | CR 2 | 64 μm/yr | Re-Survey |
| D-0461 | 0.5 | CR 1 | 18 μm/yr | Monitor |
| D-0123 | 0.1 | CR 0 | ≤10 μm/yr | Regular Inspection |
Each coating defect now carries a corrosion rate in µm/year and a Corrosion Activity Class from CR 0 to CR 4. One number tells you not just that a risk exists, but how urgent it is.
Corrosion Activity reflects current activity, not remaining wall thickness.
From the defect
to the rate.
01
We assess the coating condition
We determine seamlessly the pipeline’s coating to identify, localize and georeference coating defects from the earth’s surface, with no excavation.
02
We classify the corrosion activity
CMI analyses how each defect behaves and separates steel that is protected from steel that is actively corroding, then assigns a Corrosion Activity Class.
03
We report the rate
Each class carries a corrosion rate in µm/year, validated against excavation findings and consistent with the cathodic protection criteria of EN ISO 15589-1.
One map. Every defect.
Ranked by rate.
You receive every coating defect on a single georeferenced map, each carrying its Corrosion Activity Class and corrosion rate in µm/year — ready to drop straight into your ECDA programme and PIMS. Designed for experts to meet all regulatory requirements.
CR 0 · ≤10 CR 1 · 10–30 CR 2 · 30–100 CR 3 · 100–300 CR 4 · ≥300 · active
One survey. Answers each team needs.
Integrity manager
Fewer, better-targeted digs and a defensible, ranked priority list instead of a blanket programme.
CP & corrosion engineer
Cathodic-protection effectiveness assessed to recognised standards, without disrupting your CP system.
Procurement
No unnecessary excavations. Every dig you avoid is a five-figure cost saved, with no shutdown and no inline tooling.