Corrosion health

In pilot

Every line in the system ranked from everything known about it, with the reason attached and every rule written down.

What it reads

CP test stations

Close-interval surveys

Rectifier records

Inspection runs

Your own reviews

The output

Every line, ranked, with the reason

A rank with no reason is not reviewable, so the reason travels with the rank and names the readings behind it.

Read every source
Attach the reason
Rank, worst first

LineWhyRead fromRank

Line 3 Protection below criterion at TS-13, over a coating holiday and a metal-loss feature that grew between the last two runs CP, survey, runs High

Line 1 Metal loss grew between the last two runs, no dig recorded since the second Runs, work Medium

Line 6 Rectifier output drifting down over three readings, annual survey due this quarter Rectifiers Medium

Line 2 Within criterion at every station read this year CP Low

Line 5 No survey on file in the last three years. Not enough data to rank — No data

Sample data.

Not enough data is a result, not a blank. A line we cannot speak to is listed as one we cannot speak to.

Every rule is open

You can read the rules, and they are yours to change

The thresholds are the operator's, each one carrying the source it came from. Change a threshold and the study runs to the new one.

RULEWHAT IT FLAGSSOURCE

CP-01 Protection below the operator's criterion at a test station Operator criterion

CP-02 A reading that breaks from its own history, or from its neighbors on the same line Operator criterion

RE-01 Rectifier output trending down across consecutive readings Operator criterion

CO-01 A coating indication within a set distance of a low-protection station Operator criterion

DQ-01 No survey on file inside the review window Data completeness

How to read this study

This is a first-pass analysis, for the operator's engineers to review. Data indicates; engineering judgment decides. Nothing here replaces a direct examination, and no finding is a recommendation to act.

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