Air filters for general ventilation - Part 2: Measurement of fractional efficiency and air flow resistance (ISO 16890-2:2016)

This International Standard refers to particulate air filters for general ventilation having an initial efficiency of less than 99 % with respect to 0,4 µm particles. Filters used in the ventilation of low-rise residential buildings or portable room-air cleaners are excluded from the scope of this standard. It describes the technical specifications, requirements and a method of test for the fractional efficiency measurement and resistance to airflow. The method is applicable for air flow rates between 0,25 m³/s (900 m³/h, 530 ft³/min) and 1,5 m³/s (5400 m³/h, 3178 ft³/min), referring to a test duct with a nominal face area of 0,61 m x 0,61 m. Filters in the higher end and above 99 % initial efficiency with respect to 0,4 µm particles are tested and classified according to other standards (see ISO 29463, part 1-5). Filters according to this series of standards are rated by their removal efficiency to PM10, PM2.5 and PM1 aerosol fractions. The particle collection efficiency of the filter element is measured as a function of the particle size in the range of 0,3 to 10 µm of the unloaded and unconditioned filter element. In a second step, a full filter element shall be conditioned (discharged) in an artificial aging step to provide information about the intensity of the electrostatic removal mechanism. The results from this second step are used to calculate the average efficiency in each of the PM10, PM2.5 and PM1 size ranges by weighting the fractional efficiency values according to the standardized and normalized particle size distribution of the related fraction of the ambient aerosol. This standardized and normalized particle size distribution is defined in this standard

Luftfilter für die allgemeine Raumlufttechnik - Teil 2: Ermittlung des Franktionsabscheidegrades und des Durchflusswiderstandes (ISO 16890-2:2016)

Filtres à air pour ventilation générale - Partie 2: Mesurage du rendement fractionnaire et de la résistance à l'écoulement de l'air (ISO 16890-2:2016)

ISO 16890-2:2016 spécifie la production d'aérosol, l'équipement d'essai et les méthodes d'essai utilisés pour mesurer l'efficacité spectrale et la résistance à l'écoulement de l'air d'un filtre à air de ventilation générale.
Elle est destinée à être utilisée conjointement avec l'ISO 16890‑1, l'ISO 16890‑3 et l'ISO 16890‑4.
La méthode d'essai décrite dans la présente partie de l'ISO 16890 est applicable pour des débits d'air compris entre 0,25 m3/s (900 m3/h, 530 ft3/min) et 1,5 m3/s (5400 m3/h, 3178 ft3/min), en se référant à un banc d'essai ayant une surface frontale nominale de 610 mm x 610 mm (24 inch x 24 inch).
L'ISO 16890 (toutes les parties) concerne les éléments filtrants de ventilation générale ayant une efficacité ePM1 inférieure ou égale à 99 % et une efficacité ePM10 supérieure à 20 %, lorsqu'ils sont soumis à essai selon les modes opératoires définis dans l'ISO 16890 (toutes les parties).
NOTE Pour ce mode opératoire, la limite inférieure est fixée à une efficacité minimale ePM10 de 20 % étant donné qu'il est très difficile pour un élément filtrant d'essai, en dessous de ce niveau, de respecter les exigences de validité statistique de ce mode opératoire.
En dehors de ces fractions d'aérosol, les éléments filtrant sont évalués par d'autres méthodes d'essai applicables (voir l'ISO 29463 (toutes les parties)).
Les éléments filtrants utilisés dans les épurateurs d'air ambiant portatifs sont exclus du domaine d'application.
Les résultats de performance obtenus conformément à l'ISO 29463 (toutes les parties) ne peuvent pas être utilisés quantitativement pour prédire les performances en service, en ce qui concerne l'efficacité et la durée de vie.

Zračni filtri pri splošnem prezračevanju - 2. del: Merjenje frakcijske učinkovitosti in odpornosti proti toku zraka (ISO 16890-2:2016)

Ta evropski standard se uporablja za zračne filtre delcev za splošno prezračevanje, katerih začetna učinkovitost v zvezi z delci velikosti 0,4 μm je manj kot 99 %. Filtri, ki se uporabljajo pri prezračevanju nizkih stanovanjskih stavb ali premični čistilniki zraka v prostorih so izključeni s področja uporabe tega standarda. Opisuje tehnične specifikacije, zahteve in metodo preskušanja za merjenje frakcijske učinkovitosti in odpornosti proti toku zraka. Metoda je uporabna za tok zraka med 0,25 m³/s (900 m³/h, 530 ft³/min) in 1,5 m³/s (5400 m³/h, 3178 ft³/min) v preskusnih ceveh z nazivno površino 0,61 m x 0,61 m. Boljši filtri z začetno učinkovitostjo nad 99 % glede na delce velikosti 0,4 µm se preskušajo in razvrščajo v skladu z drugimi standardi (glej ISO 29463, del 1-5). Filtri v skladu s to serijo standardov se ocenjujejo po njihovi učinkovitosti odstranjevanja delcev aerosolov PM10, PM2.5 in PM1. Učinkovitost zbiranja delcev vložka filtra se meri kot funkcija velikosti delcev v razponu od 0,3 do 10 μm pri praznem in nekondicioniranem vložku filtra. V drugem koraku je treba polni vložek filtra kondicionirati (izprazniti) v koraku umetnega staranja, s čimer se zagotovijo informacije o intenzivnosti elektrostatičnega mehanizma odstranjevanja. Rezultati drugega koraka se uporabljajo za izračun povprečne učinkovitosti v razponih velikosti PM10, PM2.5 in PM1 s ponderiranjem vrednosti frakcijske učinkovitosti glede na porazdelitev standardizirane in normalizirane velikosti delcev povezane frakcije zunanjega aerosola. V tem standardu je določena ta porazdelitev standardizirane in normalizirane velikosti delcev.

General Information

Status
Published
Public Enquiry End Date
29-Dec-2014
Publication Date
15-Jan-2017
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
09-Jan-2017
Due Date
16-Mar-2017
Completion Date
16-Jan-2017

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SLOVENSKI STANDARD
SIST EN ISO 16890-2:2017
01-marec-2017
1DGRPHãþD
SIST EN 779:2012

=UDþQLILOWULSULVSORãQHPSUH]UDþHYDQMXGHO0HUMHQMHIUDNFLMVNHXþLQNRYLWRVWLLQ

RGSRUQRVWLSURWLWRNX]UDND ,62

Air filters for general ventilation - Part 2: Measurement of fractional efficiency and air flow

resistance (ISO 16890-2:2016)
Luftfilter für die allgemeine Raumlufttechnik - Teil 2: Ermittlung des
Franktionsabscheidegrades und des Durchflusswiderstandes (ISO 16890-2:2016)

Filtres à air pour ventilation générale - Partie 2: Mesurage du rendement fractionnaire et

de la résistance à l'écoulement de l'air (ISO 16890-2:2016)
Ta slovenski standard je istoveten z: EN ISO 16890-2:2016
ICS:
91.140.30 3UH]UDþHYDOQLLQNOLPDWVNL Ventilation and air-
VLVWHPL conditioning systems
SIST EN ISO 16890-2:2017 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 16890-2:2017
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SIST EN ISO 16890-2:2017
EN ISO 16890-2
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2016
EUROPÄISCHE NORM
ICS 91.140.30 Supersedes EN 779:2012
English Version
Air filters for general ventilation - Part 2: Measurement of
fractional efficiency and air flow resistance (ISO 16890-
2:2016)

Filtres à air de ventilation générale - Partie 2: Luftfilter für die allgemeine Raumlufttechnik - Teil 2:

Mesurage de l'efficacité spectrale et de la résistance à Ermittlung des Franktionsabscheidegrades und des

l'écoulement de l'air (ISO 16890-2:2016) Durchflusswiderstandes (ISO 16890-2:2016)

This European Standard was approved by CEN on 19 September 2016.

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
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16890-2:2016 E

worldwide for CEN national Members.
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SIST EN ISO 16890-2:2017
EN ISO 16890-2:2016 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 16890-2:2017
EN ISO 16890-2:2016 (E)
European foreword

This document (EN ISO 16890-2:2016) 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 June 2017, and conflicting national standards shall be

withdrawn at the latest by June 2017.

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.
This document supersedes EN 779:2012.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association.

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 16890-2:2016 has been approved by CEN as EN ISO 16890-2:2016 without any

modification.
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SIST EN ISO 16890-2:2017
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SIST EN ISO 16890-2:2017
INTERNATIONAL ISO
STANDARD 16890-2
First edition
2016-12-01
Air filters for general ventilation —
Part 2:
Measurement of fractional efficiency
and air flow resistance
Filtres à air de ventilation générale —
Partie 2: Mesurage de l’efficacité spectrale et de la résistance à
l’écoulement de l’air
Reference number
ISO 16890-2:2016(E)
ISO 2016
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SIST EN ISO 16890-2:2017
ISO 16890-2:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland

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

the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
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Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
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SIST EN ISO 16890-2:2017
ISO 16890-2:2016(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................vi

Introduction ..............................................................................................................................................................................................................................vii

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

4 Symbols and abbreviated terms ........................................................................................................................................................... 4

4.1 Symbols ......................................................................................................................................................................................................... 4

4.2 Abbreviated terms ............................................................................................................................................................................... 6

5 General test requirements ......................................................................................................................................................................... 6

5.1 Test device requirements ............................................................................................................................................................... 6

5.2 Test device installation .................................................................................................................................................................... 6

5.3 Test rig requirements ........................................................................................................................................................................ 6

6 Test materials .......................................................................................................................................................................................................... 7

6.1 Liquid phase aerosol .......................................................................................................................................................................... 7

6.1.1 DEHS test aerosol ............................................................................................................................................................ 7

6.1.2 DEHS/DES/DOS - formula ....................................................................................................................................... 7

6.1.3 DEHS properties ............................................................................................................................................................... 7

6.1.4 Liquid phase aerosol generation ........................................................................................................................ 7

6.2 Solid phase aerosol .............................................................................................................................................................................. 8

6.2.1 Potassium chloride (KCl) test aerosol ........................................................................................................... 8

6.2.2 KCl - formula ........................................................................................................................................................................ 8

6.2.3 KCl properties ..................................................................................................................................................................... 8

6.2.4 Solid phase aerosol generation ........................................................................................................................... 9

6.3 Reference aerosols ............................................................................................................................................................................10

6.3.1 Reference aerosol for 0,3 µm to 1,0 µm ....................................................................................................10

6.3.2 Reference aerosol for 1,0 µm to 10,0 µm .................................................................................................10

6.3.3 Other reference aerosols ........................................................................................................................................10

6.3.4 Matching criteria ...........................................................................................................................................................11

6.4 Aerosol loading ....................................................................................................................................................................................11

7 Test equipment....................................................................................................................................................................................................11

7.1 Test rig .........................................................................................................................................................................................................11

7.1.1 Dimensions ........................................................................................................................................................................11

7.1.2 Construction materials ............................................................................................................................................12

7.1.3 Test rig shape ...................................................................................................................................................................12

7.1.4 Test rig air supply .........................................................................................................................................................13

7.1.5 Test rig isolation ............................................................................................................................................................13

7.1.6 D/S mixing orifice ........................................................................................................................................................13

7.1.7 Aerosol sampling ..........................................................................................................................................................14

7.1.8 Test rig air flow rate measurement .................. .............................................................................................16

7.1.9 Resistance to air flow measurement ...........................................................................................................16

7.1.10 Non 610 mm × 610 mm (24,0 inch × 24,0 inch) test devices .................................................17

7.1.11 Dust injection testing ................................................................................................................................................18

7.2 Aerosol particle counter ..............................................................................................................................................................18

7.2.1 General...................................................................................................................................................................................18

7.2.2 OPC sampled size range ..........................................................................................................................................18

7.2.3 OPC particle size ranges .........................................................................................................................................18

7.2.4 Sizing resolution............................................................................................................................................................19

7.2.5 Calibration ..........................................................................................................................................................................19

7.2.6 Air flow rate ......................................................................................................................................................................19

7.2.7 Zero counting ...................................................................................................................................................................19

7.2.8 Dual OPC(s) .......................................................................................................................................................................19

7.3 Temperature, relative humidity.............................................................................................................................................20

© ISO 2016 – All rights reserved iii
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SIST EN ISO 16890-2:2017
ISO 16890-2:2016(E)

8 Qualification of test rig and apparatus .......................................................................................................................................20

8.1 Schedule of qualification testing requirements .......................................................................................................20

8.1.1 General...................................................................................................................................................................................20

8.1.2 Qualification testing ...................................................................................................................................................20

8.1.3 Qualification documentation ..............................................................................................................................20

8.2 Qualification testing ........................................................................................................................................................................21

8.2.1 Test rig — Pressure system testing ..............................................................................................................21

8.2.2 OPC — Air flow rate stability test ..................................................................................................................22

8.2.3 OPC — Zero test .................. .................................................... .......................................................................................22

8.2.4 OPC — Sizing accuracy ............................................................................................................................................23

8.2.5 OPC — Overload test .................................................................................................................................................23

8.2.6 Aerosol generator — Response time ...........................................................................................................24

8.2.7 Aerosol generator — Neutralizer ...................................................................................................................24

8.2.8 Test rig — Air leakage test....................................................................................................................................25

8.2.9 Test rig — Air velocity uniformity .................................................................................................................26

8.2.10 Test rig — Aerosol uniformity ...........................................................................................................................27

8.2.11 Test rig — Downstream mixing .......................................................................................................................28

8.2.12 Test rig — Empty test device section pressure ..................................................................................29

8.2.13 Test rig — 100 % efficiency test and purge time ..............................................................................30

8.2.14 Test rig — Correlation ratio ................................................................................................................................30

8.3 Maintenance ...........................................................................................................................................................................................30

8.3.1 General...................................................................................................................................................................................30

8.3.2 Test rig — Background counts ..........................................................................................................................31

8.3.3 Test rig — Reference filter test .........................................................................................................................32

8.3.4 Test rig — Pressure reference test ................................................................................................................33

8.3.5 Test rig — Final filter resistance .....................................................................................................................33

9 Test methods ..........................................................................................................................................................................................................33

9.1 Air flow rate ............................................................................................................................................................................................33

9.2 Measurement of resistance to air flow ............................................................................................................................33

9.3 Measurement of fractional efficiency ...............................................................................................................................33

9.3.1 Aerosol sampling protocol ...................................................................................................................................33

9.3.2 Background sampling ...............................................................................................................................................33

9.3.3 Testing sequence for a single OPC..................................................................................................................34

9.3.4 Testing sequence for dual OPC testing .......................................................................................................36

10 Data reduction and calculations .......................................................................................................................................................38

10.1 Correlation ratio .................................................................................................................................................................................38

10.1.1 Correlation ratio general........................................................................................................................................38

10.1.2 Correlation ratio data reduction .....................................................................................................................38

10.2 Penetration and fractional efficiency ................................................................................................................................40

10.2.1 Penetration and fractional efficiency general ......................................................................................40

10.2.2 Penetration data reduction ..................................................................................................................................40

10.3 Data quality requirements .........................................................................................................................................................43

10.3.1 Correlation background counts .......................................................................................................................43

10.3.2 Efficiency background counts ...........................................................................................................................43

10.3.3 Correlation ratio ............................................................................................................................................................43

10.3.4 Penetration ........................................................................................................................................................................44

10.4 Fractional efficiency calculation ...........................................................................................................................................44

11 Reporting results ..............................................................................................................................................................................................45

11.1 General ........................................................................................................................................................................................................45

11.2 Required reporting elements ..................................................................................................................................................45

11.2.1 Report general ................................................................................................................................................................45

11.2.2 Report values ...................................................................................................................................................................45

11.2.3 Report summary ...........................................................................................................................................................45

11.2.4 Report details ..................................................................................................................................................................47

Annex A (informative) Example ..............................................................................................................................................................................50

Annex B (informative) Resistance to air flow calculation............................................................................................................57

iv © ISO 2016 – All rights reserved
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SIST EN ISO 16890-2:2017
ISO 16890-2:2016(E)

Bibliography .............................................................................................................................................................................................................................59

© ISO 2016 – All rights reserved v
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SIST EN ISO 16890-2:2017
ISO 16890-2:2016(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment,

as well as information about ISO’s adherence to the World Trade Organization (WTO) principles in the

Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.

The committee responsible for this document is ISO/TC 142, Cleaning equipment for air and other gases.

This first edition of ISO 16890-2, together with ISO 16890-1, ISO 16890-3 and ISO 16890-4, cancels and

replaces ISO/TS 21220:2009, which has been technically revised.

ISO 16890 consists of the following parts, under the general title Air filters for general ventilation:

— Part 1: Technical specifications, requirements and classification system based upon particulate matter

efficiency (ePM)
— Part 2: Measurement of fractional efficiency and air flow resistance

— Part 3: Determination of the gravimetric efficiency and the air flow resistance versus the mass of test

dust captured

— Part 4: Conditioning method to determine the minimum fractional test efficiency

vi © ISO 2016 – All rights reserved
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SIST EN ISO 16890-2:2017
ISO 16890-2:2016(E)
Introduction

The effects of particulate matter (PM) on human health have been extensively studied in the past

decades. The results are that fine dust can be a serious health hazard, contributing to or even causing

respiratory and cardiovascular diseases. Different classes of particulate matter can be defined according

to the particle size range. The most important ones are PM , PM and PM . The U.S. Environmental

10 2,5 1

Protection Agency (EPA), the World Health Organization (WHO) and the European Union define

...

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