OIL FILTERS

• Resistance to Flow - measures the pressure drop across the filter at the rated flow for your filter.
• Filter Capacity and Contaminant Removal Characteristics. This procedure evaluates the filter dust capacity and determines the overall weighted gravimetric efficiency.
• Media Migration - Evaluates the filter media and the fabrication process. It assures the user that the filter itself is not going to introduce contaminants to the engine (i.e. metal filings, adhesive, filter media fibers).
• Anti-Drainback Valve - tests the filter ability to prevent oil from draining out when the engine stops, and it is restarted it still has oil in it.
• Ability to meet environmental conditions, Low Temperature Sealing Characteristics of Spin-on Oil Filters on Sealing Gaskets.
• Mechanical Test, Hydrostatic Burst Pressure Test.
• Vibration To evaluates the filters ability to not come loose and leak when exposed to vibration and hot oil under pressure. The filter may also leak from its metal seams or weld points.

AIR FILTERS

• SAE J726 - Filter life and gravimetric efficiency

FUEL FILTERS