| HOW THE ISO 4406 CLEANLINESS STANDARDS WORK
The smallest
particle that can be seen with the naked eye is about 80 microns, which is
about the diameter of a human hair. Oils routinely contain many thousands
of particles smaller than the naked eye can see. The ISO 4406 Cleanliness
Standard provides a universal method for reporting the particle contamination
of fluids. This is done by counting the particles in a 1 millilitre sample
of the fluid (1 millilitre is roughly equal to one eyedropper of fluid).
Then a three digit cleanliness number is assigned.
In order to establish the level of cleanliness:
1st, all particles equal or greater than
2 microns are counted.
2nd, all particles equal or greater than
5 microns are counted.
3rd, all particles equal or greater than
15 microns are counted.
Once counted, a Range Number is assigned (see chart to the right for range
numbers).
Therefore, assume an example of a 1 milliliter sample of oil containing:
2,200 particles >/= 2 microns
450 particles >/= 5 microns
60 particles >/= 15 microns
It would have an ISO Cleanliness Level of
18/16/13. (Range numbers are determined
from the chart)
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| EXTREMELY CLEAN
One dirty little
secret that is not discussed amongst refrigeration oil suppliers is cleanliness.
Clean oil is absolutely critical in order to maintain long life from compressors.
POLYMAX2™ is the only automotive refrigerant oil that is manufactured
to ISO 4406 Cleanliness level of 14/13/11 as
verified by laser particle counter. Just this extremely high level of cleanliness
alone can improve compressor life and reliability by over 300 percent.
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POLYMAX2™
The only refrigerant
oil manufactured to an ISO 4406 Cleanliness level of
14/13/11
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Puchase
Polymax2 A/C Compressor Oil now! |
