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Home > Testing Services > Test List > Direct Read Ferrography

Direct Read Ferrography

Definition:

Direct Read Ferrography is a quantitative analysis of ferrous particles present in used oil. It provides an index of large ferrous >5μm particles to small ferrous <5μm particles. Because it can identify the amount of ferrous wear occurring within a unit, it is most helpful in illustrating developing trends.

Standard Test Method Used:

POLARIS Method

Reporting Measurement:

Large & Small particles

Amount of Sample Needed:

2 mL

Test Limitation:

Detects only ferrous (iron) particles. Will not detect non-ferrous wear or contamination particles.

direct read ferrography illustration

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    Cooling Systems Maintenance
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