SAE J1533:2019 pdf free

SAE J1533:2019 pdf free.Air Filter Element Test Method
This SAE test method establishes a uniform test procedure for determining the gravimetric (mass based) efficiency and pressure drop performance levels of operator enclosure panel type filters on off-road, self-propelled work machines used in earth moving, and forestry, as defined in SAE J1116 and for agricultural equipment as defined in ANSI/ASAE S390, and equipped with an operator enclosure with a powered fresh air system. ISO/TS 11155-1 may additionally be used, which describes the use of particle sizing devices to measure the fractional (particle size) efficiency of panel type filters for automotive cabin filter applications. Automotive cabin filters are similar to filters described in this procedure, and the ISO/TS 11155-1 test method is therefore directly applicable.
Air flow restriction and pressure drop test is to be conducted using a minimum of five points, 25%, 50%,75%, 100%,and 125% of rated air flow (use element restriction test setup shown in Figure 2). Condition the unit to be tested at least 30 minutes under temperature and humidity conditions equivalent to those in the test area.
To determine the resistance to air flow,particulate holding capacity, particulate removal efficiency,and sealing characteristics, use the equipment described in Figure 2. For element configurations other than panel type, refer to ISO 5011.
Use a dust metering device (see Figure 3) which when used with the dust injector (see Figure 4) is capable of metering dust over the range of delivery rates required. This dust feed system shall not change the primary particle size distribution of the particulate. The average delivery rate shall be within 5% of the desired rate and the deviation in the instantaneous delivery rate from the average shall be no more than 5%.
The absolute filter shall consist of fiberglass media with a minimum thickness of 12.7 mm and a minimum density of 9.5 kg/m3. The fiber diameter shall be 0.76 to 1.27 um and the moisture absorption shall be less than 1% by weight after exposure of 50 °C and 95% relative humidity for 96 hours. The filter shall be installed with the nap side facing upstream in an air-tight holder that adequately supports the media. The face velocity shall not exceed 50 m/min to maintain media integrity.SAE J1533 pdf free download.