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  • ISO
    ISO 16889:2022 Hydraulic fluid power - Filters - Multi-pass method for evaluating filtration performance of a filter element
    Edition: 2022
    $517.03
    / user per year

Content Description

This document describes the following:

—    a multi-pass filtration performance test with continuous contaminant injection for hydraulic fluid power filter elements;

NOTE 1   For the background interlaboratory study used to verify the test methodology, see Annex D.

—    a procedure for determining the contaminant capacity, particulate removal and differential pressure characteristics;

—    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 reservoir gravimetric level of less than 200 mg/L;

NOTE 2   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.

—    a test using ISO medium test dust (ISO MTD) contaminant and a test fluid in accordance with Annex A.

This document is intended to provide 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 applies to three test conditions:

—    test condition 1, with a base upstream gravimetric level of 3 mg/L;

—    test condition 2, with a base upstream gravimetric level of 10 mg/L;

—    test condition 3, with a base upstream gravimetric level of 15 mg/L.



About ISO

ISO, the International Organization for Standardization, brings global experts together to agree on the best way of doing things – for anything from making a product to managing a process. As one of the oldest non-governmental international organizations, ISO has enabled trade and cooperation between people and companies all over the world since 1946. The International Standards published by ISO serve to make lives easier, safer and better.
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