Particle Analysis
PC21
Count of Particles ≥21μm
Method: ISO 4406
Units: None
Particles ≥21μm
This is a measure (or count) of the number of particles detected in 1ml of sample which are 21 micrometers or greater in size. Results do not identify the type of particles counted, but are indicative of the overall "cleanliness" of the fluid.
Figure 1, shown below helps to visualize the relative sizes of the particles analysed by the laboratory.
