CEN ISO/TS 21083-2:2019

SLOVENSKI STANDARD
01-junij-2019
3UHVNXVQDPHWRGD]DPHUMHQMHXþLQNRYLWRVWLVUHGVWHY]DILOWULUDQMH]UDNDNL
YVHEXMHNURJODVWHQDQRPDWHULDOHGHO9HOLNRVWGHOFHYRGQPGRQP
,6276
Test method to measure the efficiency of air filtration media against spherical
nanomaterials - Part 2: Particle size range from 3 nm to 30 nm (ISO/TS 21083-2:2019)
Méthode d'essai pour mesurer l'efficacité des médias de filtration d'air par rapport aux
nanomatériaux sphériques - Partie 2: Spectre granulométrique de 3 nm à 30 nm (ISO/TS
21083-2:2019)
Ta slovenski standard je istoveten z: CEN ISO/TS 21083-2:2019
ICS:
91.140.30 3UH]UDþHYDOQLLQNOLPDWVNL Ventilation and air-
VLVWHPL conditioning systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN ISO/TS 21083-2
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
April 2019
TECHNISCHE SPEZIFIKATION
ICS 91.140.30
English Version
Test method to measure the efficiency of air filtration
media against spherical nanomaterials - Part 2: Size range
from 3 nm to 30 nm (ISO/TS 21083-2:2019)
Méthode d'essai pour mesurer l'efficacité des médias
de filtration d'air par rapport aux nanomatériaux
sphériques - Partie 2: Spectre granulométrique de 3
nm à 30 nm (ISO/TS 21083-2:2019)
This Technical Specification (CEN/TS) was approved by CEN on 1 April 2019 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN ISO/TS 21083-2:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (CEN ISO/TS 21083-2:2019) 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.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN 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 Technical Specification: 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO/TS 21083-2:2019 has been approved by CEN as CEN ISO/TS 21083-2:2019 without any
modification.
TECHNICAL ISO/TS
SPECIFICATION 21083-2
First edition
2019-03
Test method to measure the efficiency
of air filtration media against
spherical nanomaterials —
Part 2:
Size range from 3 nm to 30 nm
Méthode d'essai pour mesurer l'efficacité des médias de filtration
d'air par rapport aux nanomatériaux sphériques —
Partie 2: Spectre granulométrique de 3 nm à 30 nm
Reference number
ISO/TS 21083-2:2019(E)
©
ISO 2019
ISO/TS 21083-2:2019(E)
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
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Published in Switzerland
ii © ISO 2019 – All rights reserved

ISO/TS 21083-2:2019(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Symbols and abbreviated terms. 2
3.2.1 Symbols . 2
3.2.2 Abbreviated terms . 3
4 Principle . 3
5 Test materials . 4
5.1 General . 4
5.2 Solid phase aerosol — Silver test aerosol as an example . 4
5.3 Solid phase aerosol generation method . 4
6 Test setup . 5
6.1 General . 5
6.2 Specifications of setup . 7
6.2.1 Aerosol generation system . 7
6.2.2 Tubing . 7
6.2.3 DEMC . 7
6.2.4 Equilibrium charge distribution and neutralization of aerosol particles . 9
6.2.5 Neutralization of aerosol particles .10
6.2.6 Make-up air line .12
6.2.7 Test filter mounting assembly .12
6.2.8 CPC .13
6.2.9 Final filter .15
6.3 Detailed setup for test using silver nanoparticles .15
6.4 Determination of the filter medium velocity .16
7 Qualification of the test rig and apparatus.16
7.1 CPC tests .16
7.1.1 CPC — Air flow rate stability test .16
7.1.2 CPC — Zero test .17
7.1.3 CPC — Overload test . .17
7.1.4 Counting accuracy calibration .18
7.2 DEMC tests .20
7.3 Qualification of aerosol neutralization .20
7.3.1 General.20
7.3.2 Qualification of neutralization by checking the multiple charge fraction on
the particles passing through the neutralizer .20
7.3.3 Qualification of the aerosol neutralizer using corona discharge balanced
output .21
7.3.4 Qualification of neutralization according to ISO/TS 19713-1 .21
7.4 System leak checks .22
7.4.1 Air leakage tests .22
7.4.2 Visual detection by cold smoke .22
7.4.3 Pressurization of the test system .22
7.4.4 Use of high efficiency filter media .22
7.5 Uniformity of the test aerosol concentration.22
8 Test procedure .
...