Hi All,
Anyone who experience with particle counter calibration or know how to get particle counter calibration fluid required by ISO11171 such as:
- MTD
- UFTD
- Resolution test fluid
Really appreciate your help.

If you look at http://www.csm.se/
they could possibly give an answer as they have an extensive and good oil lab certified for anyone and most military, air and civil certificate. I could possibly trace some individual there if you have problems finding someone. Olov

I know Rockwell Automation have a calibration fluid for their pore blockage particle counters. Your OEM should have access to a fluid that could be used to verify your results, contact them.