Furan Testing - Part 5
The significance of the furan test results depends, in part, on the reason for testing the unit in the first place. If you have baseline data, or if you have other past history, any increase in total furans, and especially the presence of specific furans other than 2-furaldehyde, may be significant. Even a small increase may indicate a significant, suggesting ongoing breakdown in the solid insulation. When we do not have a history of furans analysis to follow up on other abnormal results or for a baseline determination, we have to make our judgement and recommendations based on complete information and some general guidelines.