1 Scope
This document specifies:
a) A multi-pass filtration performance test under cyclic flow conditions with continuous contaminant injection for hydraulic fluid power filter
elements.
b) A procedure for determining the contaminant capacity, particulate removal and differential pressure characteristics.
c) A test currently applicable to hydraulic fluid power filter elements that exhibit
an average filtration ratio greater than or equal to 75 for particle sizes ≤25 µm(c),
and a final test system reservoir gravimetric level of less than 200 mg/L. It is necessary
to determine by validation the range of flow rates and the lower particle size limit
that can be used in test facilities.
d) A test using ISO 12103‑1 A3 medium test dust contaminant and a test fluid.
This document provides a test procedure that yields reproducible test data for appraising
the filtration performance of a hydraulic fluid power filter element without influence
of electrostatic charge.
This document is applicable to three test conditions:
— Base upstream gravimetric level of 3 mg/L...
BS ISO 23369:2022 history
2023BS ISO 23369:2022 Hydraulic fluid power. Multi-pass method of evaluating filtration performance of a filter element under cyclic flow conditions
2021BS ISO 23369:2021 Hydraulic fluid power. Multi-pass method of evaluating filtration performance of a filter element under cyclic flow conditions