Hey everyone,

I am new to this site and was wondering if anybody could help me out. I took a sample of a new lube and it contained 241/ppm Phos. I contacted the manufacturer and they said there is no additive package with this oil. So I took another sample 154/ppm Phos and a third sample 2/ppm phos. All three of these samples were taken from different containers. The nine compressors have a Phos level on between 2-20/ppm. Why would this be? And where is the Phos coming from?

The first thing to think about is contamination of the sampling apparatus. It appears the P level dropped with every sample you tested, indicating the samples were cleaning out a P containing material from the apparatus.

Two of the samples were taken in July of '05 and the last on was taken in January of '06
January of '06 had the 241 ppm of P.