|
Unusual Particle Counts Confusing
Michelle Allis, Wearcheck
First check by what means the particle count is measured. When
using an instrument that uses a "visual method" the
particle count measurement can be affected by discoloration, water,
entrained air etc. which will give false readings. External contamination
at sampling could be a factor. Have any of the sampling conditions
changed, i.e. are the samples taken when the oil is at operating
conditions and well mixed or is their a new person taking the
samples? Are all the "after filter" samples being analysed
separately to the "before filter" samples in the lab
as a different operator could be using a different technique etc.
in order to get a different result. If this is so check the standards
run on the instrument to make sure the results coming out of the
lab are reliable.
See other responses
to this Readers Challenge.
Discuss
this topic on our message boards.
|
