• Bubble Point Test:
Is the differential gas pressure at which the first steady stream of gas bubbles is emitted from a wetted filter element under specified conditions. The air pressure required to blow the first stream through a pore is inversely proportional to the size of the largest pore in the element.

• Laboratory Analysis:
Gives a complete look at a fluid sample. Typical offerings include viscosity, neutralization number, water content, particle count, spectrometric analysis, trending graphs, photomicrograph and recommendation. Filtrec elements have been independently tested (Multi-Pass Test) according to ISO 16889 standards.

• Particle Counter Test:
A test that generally gives a particle count and cleanliness classification.

• Patch Test:
Visual analysis of a fluid sample. Passing a fluid through a fine media patch. The patch is then analyzed under a microscope.

• Multi-Pass Test:
The multi-pass test is used to determine the Beta ratio/micron rating and dirt holding capacity of a filter element. Filtrec has a multi-pass test machine manufactured by Bonavista Technologies, Inc.