Oil analysis report advising alarm for Silicon

[brazer]

Hi ,
Wasnt sure where to post this so hopefully I am in the correct 'forum';
Have been getting lab reports back on compressor oil samples & quite often they are flagging cautions due to 'silicon' levels ( anywhere from 1 to 25 mg/kg). On speaking with the lab they dont seem to understand where this fits in with things ( they dont seem to understand much about fridge oil actually !!) & suggest it could be 'dust'!
Can anyone shed some more light on this , as its a bit embarrassing not having confidence to answer questions from my clients on these reports.
Thanks
Brazer

[Brian_UK]

Checking back through earlier threads someone, Gingerair, gave this comment...

"Sometimes a high silicon level can be an indication that moisture saturated desiccant has started to break-up"

Thread here... http://www.refrigeration-engineer.co...t-oil-analysis