BS ISO 4020:2001

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Flow rates
5 Test materials
   5.1 Test liquid
   5.2 Test contaminants for tests to determine
        instantaneous filtration efficiency and
        filter life
   5.3 Test installation, general
6 Tests
   6.1 Test for cleanliness of new filters
   6.2 Fabrication integrity test
   6.3 Test for differential pressure of new filters
   6.4 Test for instantaneous filtration efficiency
        and filter life
   6.5 Test for water separation efficiency
   6.6 Collapse/burst test of the filter element
   6.7 Burst test of complete filters
   6.8 Pulsating pressure fatigue test
   6.9 Vibration resistance fatigue test
Annex A (normative) Test liquid for fuel filter test
Annex B (normative) Test installations
Annex C (normative) Organic contaminant
Annex D (normative) Specification for carbon black powder
        used for the organic contaminant concentrate
Annex E (normative) Supplementary details for water
        separation test
Annex F (normative) Determination of the insoluble
        content
Annex G (normative) Diagram for showing instantaneous
        filtration efficiency and differential pressure
        versus choking time
Bibliography

Defines the types of test for fuel filters according to their application. Applies to fuel filters provided for road vehicles with diesel engines, for test installations fuel injection equipment.

This International Standard specifies the types of test for fuel filters in accordance with their application.

This International Standard applies to fuel filters provided for road vehicles with diesel engines and for test installations for fuel injection equipment.

The test described may be used for fuel filters located either on the pressure side or on the suction side of the fuel supply pump.

This International Standard is intended for filters having a rated flow of up to 200 l·h⁻¹.

By agreement, the tests, with some modifications, may be used for filters with higher rates of flow.