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BS ISO 23369:2021

BS ISO 23369:2021

$167.15

Hydraulic fluid power. Multi-pass method of evaluating filtration performance of a filter element under cyclic flow conditions

Published By Publication Date Number of Pages
BSI 2021 44
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This document specifies:

  1. A multi-pass filtration performance test under cyclic flow conditions with continuous contaminant injection for hydraulic fluid power filter elements.

  2. A procedure for determining the contaminant capacity, particulate removal and differential pressure characteristics.

  3. 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 Āµm(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.

  4. 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:

  1. Base upstream gravimetric level of 3 mg/L.

  2. Base upstream gravimetric level of 10 mg/L.

  3. Base upstream gravimetric level of 15 mg/L.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
10 3 Terms and definitions
12 4 Symbols
13 5 General procedure
6 Test equipment
15 7 Measurement accuracy and test condition variation
16 8 Filter performance test circuit validation procedures
8.1 General
8.2 Filter test system validation
17 8.3 Contaminant injection system validation
9 Summary of information required prior to testing a filter element
18 10 Preliminary test preparation
10.1 Test filter assembly
10.2 Contaminant injection system
19 10.3 Filter test system
20 11 Filter performance test
22 12 Calculations
24 13 Data presentation
26 14 Identification statement (reference to this document)
27 Annex A (normative) Base test fluid properties
29 Annex B (informative) Test system design guide
34 Annex C (informative) Example report, calculations and graphs
42 Bibliography

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BS ISO 23369:2021
$167.15