What is an ISO Code for the Particle Count?
The ISO code is a cleanliness code that is based on the number of particles detected at three different micron levels. It is a three-tiered code based on the number of particles >4, >6 & >14µm (microns) detected at those levels. It was designed to be a quick reference for identifying the cleanliness level of a fluid as related to particulates. Read more about the ISO Code.