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Furanic Compounds

Method High Performance Liquid Chromatography
Standards ASTM D 5837, IEC 61125

What is it used for?

The breakdown of the cellulose-based windings in the solid insulation of transformers give rise to furanic compounds, and therefore act as a good marker of aging or fault conditions.

 

How does it work?

A portion of the oil sample is collected, with furan compounds separated from the oil using solid phase extraction (SPE).  These compounds are then collected and analysed by liquid chromatography using a UV detector.

 

What do the results tell us?

The concentration of each of the five taget furan compounds (fufural, furfural, hydroxymethyl-2-furaldehyde, 2-acetyl furan and 5-methyl-2-furaldehyde, all in terms of mg/L.

 

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