The performance of diesel filters in accordance with the ISO standard level code. When choosing the filter element, you can choose the original pieces, also can choose the second brand. However, the filter element to be selected for acceptance, to test whether it should meet the filter performance indicators.

Diesel filter according to ISO4020 standards (road vehicles - fuel filter for automotive diesel fuel test method) the following tests: 

1. New filter cleanliness test, to determine whether the inside of the filter removed the production and storage of residual dust impurities

2.Bubble test: used to test whether the filter is greater than the filtration accuracy of the existence of pores

3. Filtration efficiency and life test Filtration efficiency: refers to the filter to determine the percentage of specific particles, filter life, then the plug test pressure is greater than 0.07MPa time.

4. Water separation validity test, to determine the percentage of water in the filter separation oil-water mixture.

5. Filter damage test: Determine the filter cartridge to crack pressure.

6. Filter assembly damage test: Determine the ability of the filter assembly to withstand internal pressure

7. Pulsating Pressure Fatigue Test: Determine the mechanical strength of the filter assembly under pulsating pressure (simulating engine start or stop).

8. Anti-vibration fatigue test: to determine the normal use of anti-vibration filter under the mechanical strength.