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BS EN ISO 29461-3:2024

BS EN ISO 29461-3:2024

$142.49

Air intake filter systems for rotary machinery. Test methods – Mechanical integrity of filter elements

Published By Publication Date Number of Pages
BSI 2024 32
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This document specifies methods to determine the mechanical integrity of filters under defined conditions that can be encountered in abnormal operating environments. It describes the test methods for filter elements, independent of any ageing procedures like pulsing, loading, temperature cycles, wet conditions or others. The test procedure is intended for filters operating in the range of 0,24 m3/s (850 m3/h) up to 2,36 m3/s (8 500 m3/h). Filter elements with a lower efficiency than ISO T5 (ePM10) according to ISO 29461-1 are excluded. To ensure the comparability of the test results, only new filter elements or those loaded up to 625 Pa or maximum 800 Pa according to ISO 29461-1 are tested. This document does not describe a standardized method to measure the fractional or gravimetric efficiency. The efficiency of the filter element can be tested according to ISO 29461-1. The performance results obtained according to this document cannot be quantitatively applied (by themselves) to predict performance in real use.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 European foreword
Endorsement notice
7 Foreword
8 Introduction
11 1 Scope
2 Normative references
3 Terms and definitions
12 3.1 Test parameter
3.2 Filter to be tested
13 3.3 Test duration
3.4 Test materials
4 Test rig, conditions and equipment
4.1 Test conditions
4.2 Test rig – General requirements
14 4.3 Camera
4.4 Differential pressure measurement
4.5 Flow measurement
15 4.6 Dust feeder
4.7 Water spraying nozzles (fogging nozzles)
16 4.8 Final filter/coarse filter mat or grid
4.9 Temperature, relative humidity
5 Qualification of test rig and apparatus
5.1 Pressure system test
5.2 Test rig — Pressure drop of test duct with no test device installed
5.3 Test rig — Pressure drop reference test
5.4 Summary of qualification requirements and schedule
17 6 Test materials
6.1 Test dust
6.2 Water
6.3 Coarse filter
7 Test procedure
7.1 General
18 7.2 Test result evaluation
7.2.1 General
7.2.2 Measurement of pressure drop
7.2.3 Visual inspection of filter
7.2.4 Visual inspection downstream of the test device
7.2.5 Final test in accordance with ISO 29461-1
19 7.3 Test preparation
7.4 Determination of the initial loading concentration of test dust and water
20 7.5 Loading procedure
21 7.6 Fail/pass criteria
7.6.1 General
7.6.2 Release of parts
7.6.3 Pressure drop decrease
7.6.4 Visual inspection during test
7.6.5 Final test in accordance with ISO 29461-1
22 8 Reporting results
8.1 General and descriptive information
23 8.2 Test data and results
24 8.3 Concluding statement
25 Annex A (normative) Wet burst testing
26 Annex B (informative) Test report example
30 Bibliography

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BS EN ISO 29461-3:2024
$142.49