EN ISO 29461-1:2013

Air intake filter systems for rotary machinery - Test methods - Part 1: Static filter elements (ISO 29461-1:2013)

ISO 29461 specifies methods and procedures for determining the performance of particulate air filters used in air intake filter systems for rotary machinery such as stationary gas turbines, compressors and other stationary internal combustion engines. It applies to air filters having an initial particle efficiency up to 99,9 % with respect to 0,4 µm particles. Filters with higher initial particle efficiencies are tested and classified according to other standards (e.g. EN 1822). These procedures are intended for filters which operating at flow rates within the range 0,25 m3/s (900 m3/h) up to 1,67 m3/s (6000 m3/h).
ISO 29461-1:2013 refers to static (barrier) filter systems but can be applied to other filter types and systems in appropriate circumstances.
Two methods of determining the efficiency are used in ISO 29461-1:2013:
particulate efficiency (measured with respect to particle number and size);
gravimetric efficiency (percentage weighted mass removal of loading dust.
Also a flat sheet media sample or media pack sample from an identical filter is conditioned (discharged) to provide information about the intensity of the electrostatic removal mechanism.
After determination of its initial particle efficiency, the untreated filter is loaded with dust in steps until its final test pressure drop is reached. Information on the loaded performance of the filter is then obtained.
The performance results obtained in accordance with ISO 29461-1:2013 cannot be quantitatively applied (by themselves) to predict performance in service with regard to efficiency and lifetime. Other factors influencing performance to be taken into account are described in the annexes.

Luftfiltereinlasssysteme von Rotationsmaschinen - Prüfverfahren - Teil 1: Statische Filterelemente (ISO 29461-1:2013)

In ISO 29461 werden Prüfverfahren für die Ermittlung der Leistung von Partikelluftfiltern und
-filtereinlasssysteme festgelegt, die Rotationsmaschinen, z. B. stationäre Gasturbinen, Kompressoren und andere stationäre Verbrennungskraftmaschinen. Die Norm gilt für Luftfilter mit einem Anfangswirkungsgrad bis 99,9 % bei Partikelgrößen von 0,4 µm. Filter mit höheren Wirkungsgraden werden nach anderen Normen (z. B. EN 1822) geprüft und klassifiziert.  Diese Verfahren sind vorgesehen für Filter, die bei Volumenströmen im Bereich von 0,25 m3/s (900 m3/h) bis zu 1,67 m3/s (6000 m3/h) betrieben werden.
Der vorliegende Teil der ISO 29461 bezieht sich auf statische Filtersysteme (Sperrfilter), kann aber, wenn zutreffend, unter bestimmten Umständen auch auf andere Filterarten und  systeme angewendet werden.
In diesem Normteil der ISO 29461 werden zwei Verfahren zur Bestimmung des Wirkungsgrades angewendet:
   Messung des Partikelwirkungsgrads (unter Bezug auf Partikelanzahl und  größe);
   Messung des gravimetrischen Wirkungs  oder Abscheidegrads (gewichteter Massenanteil des abgeschiedenen Beladungsstaubes).
Um Aussagen über die Wirksamkeit des Abbaus elektrostatischer Ladungen zu ermöglichen, muss eine Probe aus einem planen Filtermedium oder aus einem Filtermedienpaket eines identischen Filters konditio¬niert (elektrostatisch entladen) werden.
Nach Bestimmung des Anfangswirkungsgrads des unbehandelten Filters wird bis zum Erreichen der Enddruckdifferenz stufenweise Staub auf das Filter aufgegeben. Daraus sind dann Angaben über einen bestaubten Filter zu bestimmen.
Die nach diesem Teil der ISO 29461 Norm für die Leistung ermittelten Ergebnisse können nicht unmittelbar zur quantitativen Vorhersage der Leistung bezogen auf Wirkungsgrad und Lebensdauer für den jeweiligen Anwendungsfall des Filters verwendet werden. Andere Faktoren, die sich auf die Leistung auswirken und berücksichtigt werden müssen, werden in den Anhängen beschrieben.

Systèmes de filtration d'air d'admission pour machines tournantes - Méthodes d'essai - Partie 1: Éléments filtrants pour filtres statiques (ISO 29461-1:2013)

L'ISO 29461 spécifie les méthodes et modes opératoires pour la détermination de la performance des filtres à air utilisés dans les systèmes de filtration d'air d'admission pour machines tournantes, telles que les turbines à gaz, les compresseurs et les moteurs fixes à combustion interne. Elle s'applique aux filtres à air dont l'efficacité initiale va jusqu'à 99,9 % pour les particules de 0,4 µm. Les filtres avec une efficacité initiale supérieure sont soumis à essai et classés conformément à d'autres normes (par exemple l'EN 1822). Ce mode opératoire est prévu pour les filtres fonctionnant à des débits compris dans la plage de 0,25 m3/s (900 m3/h) à 1,67 m3/s (6 000 m3/h).
L'ISO 29461-1:2013 concerne les systèmes de filtration (barrières filtrantes) statiques, mais peut aussi s'appliquer à d'autres types de filtres et systèmes de filtration, le cas échéant.
Deux méthodes de détermination de l'efficacité sont utilisées dans l'ISO 29461-1:2013:
l'efficacité particulaire (efficacité mesurée par rapport au nombre et à la taille des particules);
l'efficacité gravimétrique (élimination en masse pondérée de la poussière de chargement).
De plus, un échantillon de média plan ou un bloc d'échantillon de média, prélevé sur un filtre identique, doit être conditionné (déchargé) afin d'obtenir des informations sur l'intensité du mécanisme d'élimination électrostatique.
Après détermination de son efficacité initiale, le filtre non traité est progressivement chargé de poussière jusqu'à atteindre sa perte de charge finale d'essai. Des informations sur les performances du filtre chargé sont ainsi obtenues.
Les données de performance obtenues conformément à l'ISO 29461-1:2013 ne peuvent être utilisées quantitativement (par elles-mêmes) pour prédire les performances en service en termes d'efficacité et de durée de vie. Les autres facteurs ayant une incidence sur les performances à prendre en compte sont décrits dans les annexes.

Zračni filtrski sistemi rotacijskih strojev - Preskusne metode - 1. del: Statični filtrski elementi (ISO 29461-1:2013)

ISO 29461 določa metode in postopke za ugotavljanje delovanja zračnih filtrov za delce, ki se uporabljajo v filtrirnih sistemih z dovodom zraka za rotacijske stroje, kot so nepremične plinske turbine, kompresorji in drugi nepremični motorji z notranjim izgorevanjem. Velja za zračne filtre, katerih začetna učinkovitost v zvezi z delci velikosti 0,4 μm je do 99,9 %. Filtri z višjimi začetnimi učinkovitostmi se preskusijo in razvrstijo v skladu z drugimi standardi (npr. EN 1822). Ti postopki so namenjeni za filtre, ki delujejo na pretokih znotraj razpona od 0,25 m3/s (900 m3/h) do 1,67 m3/s (6000 m3/h). Ta del standarda ISO 29461 se nanaša na statične (pregradne) filtrirne sisteme, vendar ga je v ustreznih okoliščinah mogoče uporabiti za druge tipe filtrov in filtrirne sisteme. V tem delu standarda ISO 29461 se uporabljata dve metodi za ugotavljanje učinkovitosti: – učinkovitost delcev (izmerjena glede na število in velikost delcev); – gravimetrična učinkovitost (odstotek ovrednotene odstranitve mase prahu). Poleg tega se obdela (izprazni) vzorec medija traku ali vzorec paketa medija iz identičnega filtra, s čimer se zagotovijo informacije o intenzivnosti mehanizma elektrostatičnega odstranjevanja. V neobdelan filter se po ugotovitvi začetne učinkovitosti v zvezi z delci postopoma nalaga prah, dokler se ne doseže končni padec tlaka v preskusu. Pridobijo se informacije o učinkovitosti filtra pod obremenitvijo. Rezultatov glede zmogljivosti, pridobljenih v skladu s tem delom standarda ISO 29461, ni mogoče samih po sebi kvantitativno uporabiti za predvidevanje zmogljivosti med obratovanjem, v zvezi z učinkovitostjo in življenjsko dobo. Drugi dejavniki, ki vplivajo na zmogljivost in ki jih je treba upoštevati, so opisani v dodatkih.

General Information

• Status: Withdrawn
• Publication Date: 09-Apr-2013
• Withdrawal Date: 05-Oct-2021
• ICS: 27.020 - Internal combustion engines
• ICS: 27.040 - Gas and steam turbines. Steam engines
• ICS: 29.160.99 - Other standards related to rotating machinery
• Technical Committee: CEN/TC 195 - Air filters for general air cleaning
• Drafting Committee: CEN/TC 195/WG 1 - Particulate air filters for general ventilation
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 06-Oct-2021
• Ref Project: SIST EN ISO 29461-1:2013 - Air intake filter systems for rotary machinery - Test methods - Part 1: Static filter elements (ISO 29461-1:2013)

Relations

• Replaced By: EN ISO 29461-1:2021 - Air intake filter systems for rotary machinery - Test methods - Part 1: Static filter elements (ISO 29461-1:2021)
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2013
=UDþQLILOWUVNLVLVWHPLURWDFLMVNLKVWURMHY3UHVNXVQHPHWRGHGHO6WDWLþQL
ILOWUVNLHOHPHQWL,62
Air intake filter systems for rotary machinery - Test methods - Part 1: Static filter
elements (ISO 29461-1:2013)
Prüfmethoden für Luftfiltereinlasssysteme von Rotationsmaschinen und stationäre
Verbrennungsmaschinen - Teil 1: Testmethoden und Klassifizierung von statischen
Filterelementen (ISO 29461-1:2013)
Systèmes de filtration d'air d'admission pour machines tournantes - Méthodes d'essai -
Partie 1: Éléments filtrants pour filtres statiques (ISO 29461-1:2013)
Ta slovenski standard je istoveten z: EN ISO 29461-1:2013
ICS:
29.160.99 Drugi standardi v zvezi z Other standards related to
rotacijskimi stroji rotating machinery
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 29461-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2013
ICS 29.160.99
English Version
Air intake filter systems for rotary machinery - Test methods -
Part 1: Static filter elements (ISO 29461-1:2013)
Systèmes de filtration d'air d'admission pour machines Luftfiltereinlasssysteme von Rotationsmaschinen -
tournantes - Méthodes d'essai - Partie 1: Éléments filtrants Prüfverfahren - Teil 1: Statische Filterelemente (ISO 29461-
pour filtres statiques (ISO 29461-1:2013) 1:2013)
This European Standard was approved by CEN on 1 March 2013.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 29461-1:2013: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 29461-1:2012) has been prepared by Technical Committee ISO/TC 142 "Cleaning
equipment for air and other gases" in collaboration with Technical Committee CEN/TC 195 “Air filters for
general air cleaning” the secretariat of which is held by UNI.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by October 2013, and conflicting national standards shall be withdrawn at
the latest by October 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 29461-1:2013 has been approved by CEN as EN ISO 29461-1:2013 without any modification.

INTERNATIONAL ISO
STANDARD 29461-1
First edition
2013-04-01
Air intake filter systems for rotary
machinery — Test methods —
Part 1:
Static filter elements
Systèmes de filtration d’air d’admission pour machines tournantes —
Méthodes d’essai —
Partie 1: Éléments filtrants pour filtres statiques
Reference number
ISO 29461-1:2013(E)
©
ISO 2013
ISO 29461-1:2013(E)
© ISO 2013
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
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Published in Switzerland
ii © ISO 2013 – All rights reserved

ISO 29461-1:2013(E)
Contents Page
Foreword .v
0 Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
3.2 Velocity. 2
3.3 Efficiency . 2
3.5 Pressure drop (differential pressure) . 3
3.6 Filter area . 3
3.7 Filters . 3
3.8 Test aerosol . 4
3.9 Test dust . 5
3.10 Particle sampling . 5
3.11 Particle shedding . 5
4 Symbols and abbreviated terms . 6
5 General requirements . 8
6 Test rig and equipment . 8
6.1 Test condition . 8
6.2 Test rig . 8
6.3 DEHS test aerosol generation .12
6.4 Aerosol sampling system .13
6.5 Flow measurement .14
6.6 Particle counter .14
6.7 Differential pressure measuring equipment .15
6.8 Dust feeder .15
6.9 Diluter equipment .17
7 Qualification of test rig and apparatus .18
7.1 General .18
7.2 Air velocity uniformity in the test duct .18
7.3 Aerosol uniformity in the test duct.19
7.4 Particle counter sizing accuracy .20
7.5 Particle counter zero test .20
7.6 Particle counter overload test .20
7.7 100 % efficiency test .21
7.8 Zero % efficiency test .21
7.9 Aerosol generator response time .21
7.10 Dilution ratio .22
7.11 Correlation ratio .22
7.12 Pressure drop checking .23
7.13 Dust feeder airflow rate .23
7.14 Reference filter check .24
7.15 Summary of qualification requirements .25
7.16 Apparatus maintenance .25
8 Test materials .
...