The Engine Filter Test Rig ABP 115 performs tests according to guideline ISO 5011 (test of inlet air cleaning filters for internal combustion engines). Results are:
- Differential pressure related to air flow rate:
- Differential pressure of the filter
- Restriction (relative pressure against ambient)
- Dust loading capacity (related to differential pressure increase, e.g. 20 hPa)
- Gravimetric efficiency