SAE J2793:2020 pdf free
SAE J2793:2020 pdf free.Fuel Dispensing Filter Test Methods
The measuring instruments shall be capable of measuring to the levels of accuracy required by SAE J905 for flow, pressure,temperature, and volume. The test system shall comply with allowable test condition variability.
NOTE: SAE J905 serves as the basis and test methodology for Sections 8, 9, and 10.
ISO 16889 and ISO 19438 are the normative references for particle removal efficiency (fractional), and the contaminant holding capacity rating of liquid filters. Either are suitable for determining the particle removal efficiency of fuel dispensing filters.
CAUTION: Some liquid dispensing filters have center tubes containing super absorbent polymers (SAP), or a laminant of SAP onto the filter media. It is suggested that surrogate filters using the same filter media may present the safest scenario for the multipass test system.
The collapse test section of SAE J905 specifies the parameters for determining the maximum differential pressure the filter element can withstand without bypassing, due to rupture or collapse of the center tube/element assembly.
This test determines the ability of the filter to react to the presence of water-in-fuel and significantly slow the flow of fuel being dispensed to reduce the severity of water-on-board vehicles.
The test system is ilustrated in Figure 1. The test stand shall be composed of the following: test sump with 38 L (10 gallons) capacity, drain, pump, and motor capable of supplying the required test flow and differential pressure, temperature measurement device, by-pass circuit and flow control valve, test filter and mounting base, differential pressure gauge,sample port, and flow meter.
NOTE: Due to the flammability of the test fluids (fuels) used, special care must be taken to insure that no ignition sources are present in the immediate area of the test stand, proper ventilation is provided for, and the test stand must be grounded/bonded at all times. For example; spark proof pumps, wrenches, and air motors for pump drives are available as a method of reducing risk.SAE J2793 pdf free download.
