You think an "ISO Cleanliness Code" system would even exist that goes down to 1 micron if the machines used to measure fluid cleanliness were mere random number generators? See the link from WellOiled's post:
Originally Posted By: goodtimes
It is very simple to understand. The object has to be as accurate as the instrument or the measurement is meaningless.
Originally Posted By: WellOiled
Zee - I was thinking Wix is headed here - ISO Cleanliness codes WIX ISO Cleanliness Codes