SIST EN IEC 63086-2-1:2024
(Main)Household and similar electrical air cleaning appliances - Methods for measuring the performance - Part 2-1: Particular requirements for determination of reduction of particles (IEC 63086-2-1:2024)
Household and similar electrical air cleaning appliances - Methods for measuring the performance - Part 2-1: Particular requirements for determination of reduction of particles (IEC 63086-2-1:2024)
IEC 63086-2-1:2024 specifies test methods for measuring the performance of electrically powered household and similar air cleaners intended for the reduction of particulate pollutants.
Elektrische Luftreinigungsgeräte für den Hausgebrauch und ähnliche Zwecke – Messung der Gebrauchseigenschaften – Teil 2-1: Besondere Anforderungen für die Bestimmung der Reduktion von Partikeln (IEC 63086-2-1:2024)
Appareils d'épuration d'air électriques domestiques et appareils similaires - Méthodes de mesure de l'aptitude à la fonction - Partie 2-1: Exigences particulières pour la détermination de la réduction des particules (IEC 63086-2-1:2024)
L'IEC 63086-2-1:2024 spécifie des méthodes d'essai pour mesurer l'aptitude à la fonction des épurateurs d'air électrodomestiques et analogues destinés à la réduction des polluants particulaires.
Gospodinjski in podobni električni aparati za čiščenje zraka - Metode za merjenje učinkovitost delovanja - 2-1. del: Posebne zahteve za določitev zmanjšanja delcev (IEC 63086-2-1:2024)
Ta del standarda IEC 63086 določa preskusne metode za merjenje učinkovitosti delovanja gospodinjskih in podobnih električnih aparatov za čiščenje zraka, ki so namenjeni za zmanjšanje onesnaženja s trdnimi delci.
OPOMBA: Omejitve merljivosti za CADR so opisane v dodatku A.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2024
Gospodinjski in podobni električni aparati za čiščenje zraka - Metode za merjenje
učinkovitost delovanja - 2-1. del: Posebne zahteve za določitev zmanjšanja delcev
(IEC 63086-2-1:2024)
Household and similar electrical air cleaning appliances - Methods for measuring the
performance - Part 2-1: Particular requirements for determination of reduction of particles
(IEC 63086-2-1:2024)
Elektrische Luftreinigungsgeräte für den Hausgebrauch und ähnliche Zwecke – Messung
der Gebrauchseigenschaften – Teil 2-1: Besondere Anforderungen für die Bestimmung
der Reduktion von Partikeln (IEC 63086-2-1:2024)
Appareils d'épuration d'air électriques domestiques et appareils similaires - Méthodes de
mesure de l'aptitude à la fonction - Partie 2-1: Exigences particulières pour la
détermination de la réduction des particules (IEC 63086-2-1:2024)
Ta slovenski standard je istoveten z: EN IEC 63086-2-1:2024
ICS:
23.120 Zračniki. Vetrniki. Klimatske Ventilators. Fans. Air-
naprave conditioners
97.030 Električni aparati za dom na Domestic electrical
splošno appliances in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 63086-2-1
NORME EUROPÉENNE
EUROPÄISCHE NORM March 2024
ICS 23.120
English Version
Household and similar electrical air cleaning appliances -
Methods for measuring the performance - Part 2-1: Particular
requirements for determination of reduction of particles
(IEC 63086-2-1:2024)
Appareils d'épuration d'air électriques domestiques et Elektrische Luftreinigungsgeräte für den Hausgebrauch und
appareils similaires - Méthodes de mesure de l'aptitude à la ähnliche Zwecke - Messung der Gebrauchseigenschaften -
fonction - Partie 2-1: Exigences particulières pour la Teil 2-1: Besondere Anforderungen für die Bestimmung der
détermination de la réduction des particules Reduktion von Partikeln
(IEC 63086-2-1:2024) (IEC 63086-2-1:2024)
This European Standard was approved by CENELEC on 2024-02-23. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 63086-2-1:2024 E
European foreword
The text of document 59N/44/FDIS, future edition 1 of IEC 63086-2-1, prepared by SC 59N "Electrical
air cleaners for household and similar purposes" of IEC/TC 59 "Performance of household and similar
electrical appliances" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC
as EN IEC 63086-2-1:2024.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-11-23
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-02-23
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 63086-2-1:2024 was approved by CENELEC as a
European Standard without any modification.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 63086-1 2020 Household and similar electrical air cleaning EN IEC 63086-1 2020
appliances - Methods for measuring the
performance - Part 1: General requirements
+ AMD1 2023 + A1 2023
ISO 12103-1 - Road vehicles - Test contaminants for filter - -
evaluation - Part 1: Arizona test dust
ISO 29463-1 - High efficiency filters and filter media for - -
removing particles from air - Part 1:
Classification, performance, testing and
marking
ISO 5011 2020 Inlet air cleaning equipment for internal - -
combustion engines and compressors -
Performance testing
IEC 63086-2-1
Edition 1.0 2024-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical air cleaning appliances – Methods for
measuring the performance –
Part 2-1: Particular requirements for determination of particle reduction
Appareils d'épuration d'air électriques domestiques et appareils similaires –
Méthodes de mesure de l'aptitude à la fonction –
Partie 2-1: Exigences particulières pour la détermination de la réduction des
particules
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 23.120 ISBN 978-2-8322-8122-2
– 2 – IEC 63086-2-1:2024 © IEC 2024
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 7
3.1 Terms and definitions. 7
3.2 Abbreviated terms . 8
4 Aerosol measurement instruments . 8
4.1 General . 8
4.2 Aerosol transport . 9
4.3 Condensation particle counter . 9
4.4 Optical particle counter . 9
4.5 Aerodynamic particle sizer . 9
5 Aerosol generation . 9
5.1 Salt aerosol . 9
5.2 Smoke aerosol . 10
5.2.1 Type of cigarettes . 10
5.2.2 Smoke aerosol generation . 10
5.3 Dust aerosol . 11
5.3.1 Type of dust . 11
5.3.2 Dust aerosol generation . 11
5.4 Pollen aerosol . 12
5.4.1 Type of pollen . 12
5.4.2 Pollen aerosol generation . 12
6 Measurement of the CADR in maximum performance operation mode . 13
6.1 Test methods . 13
6.2 General . 13
6.3 Natural decay . 13
6.3.1 Test preparation . 13
6.3.2 Background particle number concentration . 13
6.3.3 Test chamber conditions . 14
6.3.4 Aerosol generation . 14
6.3.5 Mixing and homogenization of the test aerosol . 14
6.3.6 Measurement of the natural decay . 15
6.3.7 Calculation of the natural decay rate. 15
6.3.8 Acceptability of the run . 15
6.4 Total decay . 16
6.4.1 Test preparation . 16
6.4.2 Placement of the DUT . 16
6.4.3 Background particle number concentration . 16
6.4.4 Test chamber conditions . 16
6.4.5 Aerosol generation . 16
6.4.6 Mixing and homogenization of the test aerosol . 16
6.4.7 Operation of the DUT . 16
6.4.8 Measurement of the total decay . 16
6.4.9 Calculation of the total decay rate. 16
6.4.10 Acceptability of the run . 17
IEC 63086-2-1:2024 © IEC 2024 – 3 –
6.5 Calculation of the clean air delivery rate . 17
7 Calculation procedures . 17
7.1 Criteria for the acceptance of data points . 17
7.1.1 Outliers from the regression line . 17
7.1.2 Particle number concentration below 1 % of the value at t = 0 . 17
7.2 Calculation of decay constants . 17
7.3 Sample standard deviation of the slope of the regression line . 18
7.4 Calculation of the clean air delivery rate . 19
7.5 Sample standard deviation of the clean air delivery rate. 19
Annex A (normative) Limits of measurability . 20
A.1 General . 20
A.2 Maximum clean air delivery rate . 20
A.3 Minimum clean air delivery rate. 20
Annex B (informative) Long-term storage of the target pollutants . 21
B.1 Salt . 21
B.2 Cigarettes . 21
B.3 Dust . 21
B.4 Pollen . 21
Annex C (informative) Test report information . 22
C.1 General . 22
C.2 General data . 22
C.3 Description of the DUT . 22
C.4 Test chamber . 22
C.5 Aerosol generation . 22
C.6 Particle measurement instrumentation . 22
C.7 Test conditions . 22
C.8 Test execution . 23
C.9 Results . 23
Annex D (normative) Derivation of the effective room size . 24
D.1 Effective room size . 24
D.2 Basic indoor air model for particle number concentrations . 24
Annex E (informative) Schematic representation of a CADR measurement . 27
Annex F (informative) Cleaning procedures for the test chamber . 28
F.1 Daily start-up cleaning procedure . 28
F.2 Comprehensive test chamber cleaning procedure . 28
F.2.1 General . 28
F.2.2 Equipment . 28
F.2.3 Procedure . 28
Annex G (normative) Measurement of the average power in maximum performance
operation mode . 29
G.1 General . 29
G.2 Setup of the DUT . 29
G.3 Measurement procedure . 29
G.4 Calculation of the average operating power . 29
Annex H (informative) Calculation of the 99 % prediction interval of the regression line . 31
Annex I (normative) Alternative fine particle size range . 33
I.1 General . 33
I.2 Optical particle counter . 33
– 4 – IEC 63086-2-1:2024 © IEC 2024
I.3 Measurement of the CADR in maximum performance operation mode . 33
I.4 Derivation of the effective room size . 34
Bibliography . 35
Figure 1 – Schematic of a Laskin atomizer (a) and a Collison atomizer (b) . 10
Figure 2 – Schematic of two possible methods to generate the smoke aerosol . 11
Figure 3 – Schematic of two possible methods to generate the dust aerosol . 12
Figure 4 – Schematic of two possible methods to generate the pollen aerosol . 12
Figure E.1 – Schematic representation of the CADR measurement in accordance with
Clause 6 . 27
Table 1 – Measurement instruments, test aerosols and maximum background particle
number concentrations for the different particle size ranges . 14
Table 2 – Test aerosols and initial particle number concentrations for different particle
size ranges . 14
Table 3 – Test aerosols, mixing and homogenization time for different particle size
ranges . 15
Table 4 – Test aerosols, test duration and minimum number of data points for different
particle size ranges . 15
Table 5 – Limits for the sample standard deviation of the slope of the regression line
for the natural decay . 15
Table 6 – Limits for the sample standard deviation of the slope of the regression line
for the total decay . 17
Table H.1 – Values of the Student t-distribution with n – 2 degrees of freedom for
different numbers of data points n . 32
Table I.1 – Measurement instrument, test aerosols and maximum background particle
number concentration for the alternative fine particle size range . 33
Table I.2 – Test aerosols and initial particle number concentrations for the alternative
fine particle size range . 34
IEC 63086-2-1:2024 © IEC 2024 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL AIR CLEANING APPLIANCES –
METHODS FOR MEASURING THE PERFORMANCE –
Part 2-1: Particular requirements for determination of particle reduction
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 63086-2-1 has been prepared by subcommittee 59N: Electrical air cleaners for household
and similar purposes, of IEC technical committee 59: Performance of household and similar
electrical appliances, in co-operation with ISO technical committee 142: Cleaning equipment
for air and other gases. It is an International Standard.
It is published as a double logo International Standard.
– 6 – IEC 63086-2-1:2024 © IEC 2024
The text of this International Standard is based on the following documents:
Draft Report on voting
59N/44/FDIS 59N/46/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
In this standard, the following print types are used:
– terms defined in Clause 3 of IEC 63086-1: bold type
– terms defined in Clause 3 of IEC 63086-2-1: bold type.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 63086 series, published under the general title Household and
similar electrical air cleaning appliances – Methods for measuring the performance, can be
found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IEC 63086-2-1:2024 © IEC 2024 – 7 –
HOUSEHOLD AND SIMILAR ELECTRICAL AIR CLEANING APPLIANCES –
METHODS FOR MEASURING THE PERFORMANCE –
Part 2-1: Particular requirements for determination of particle reduction
1 Scope
This part of IEC 63086 specifies test methods for measuring the performance of electrically
powered household and similar air cleaners intended for the reduction of particulate pollutants.
NOTE The limits of measurability for the CADR are described in Annex A.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 63086-1:2020, Household and similar electrical air cleaning appliances – Methods for
measuring the performance – Part 1: General requirements
IEC 63086-1:2020/AMD1:2023
ISO 12103-1, Road vehicles – Test dust for filter evaluation – Part 1: Arizona test dust
ISO 29463-1, High efficiency filters and filter media for removing particles from air – Part 1:
Classification, performance, testing and marking
ISO 5011:2020, Inlet air cleaning equipment for internal combustion engines and compressors
– Performance testing
EN 1822-1, High efficiency air filters (EPA, HEPA and ULPA) – Part 1: Classification,
performance testing, marking
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 63086-1:2020 and
the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1.1
aerosol
suspension of fine solid particles or liquid droplets in air or another gas
– 8 – IEC 63086-2-1:2024 © IEC 2024
3.1.2
smoke aerosol
aerosol produced by burning tobacco with air forced through a cigarette's filter
3.1.3
salt aerosol
aerosol produced by atomization of an aqueous potassium chloride (KCl) solution with
subsequent drying
3.1.4
dust aerosol
aerosol produced by dispersion of commercially available test powder
3.1.5
pollen aerosol
aerosol produced by dispersion of naturally occurring particulate matter from plants
Note 1 to entry: In this document, non-defatted paper mulberry pollen including fragments are used.
3.1.6
natural decay rate
reduction rate of the target pollutant in the test chamber due to natural factors, principally
sedimentation, agglomeration, surface deposition, chemical reaction, and air exchange
−1
Note 1 to entry: The unit is per hour (h ).
3.1.7
total decay rate
reduction rate of the target pollutant in the test chamber due to the combined effect of the
natural decay rate and the operation decay rate
−1
Note 1 to entry: The unit is per hour (h ).
3.2 Abbreviated terms
APS aerodynamic particle sizer
CADR clean air delivery rate
CPC condensation particle counter
DUT device under test
HEPA filter high-efficiency particulate air filter
KCl potassium chloride
OPC optical particle counter
RH relative humidity
4 Aerosol measurement instruments
4.1 General
Calibration of all aerosol measurement instruments shall be performed at least annually in
accordance with the manufacturer's instructions. A check of the zero counting rates shall be
performed regularly by sampling with a high-efficiency particulate air (HEPA) filter on the
sample intake. The HEPA filter shall be at least of class H13 in accordance with EN 1822-1 or
ISO 35H in accordance with ISO 29463-1.
IEC 63086-2-1:2024 © IEC 2024 – 9 –
The maximum measurable particle number concentration of the aerosol measurement
instruments should be higher than the initial particle number concentration required by the
respective test methods. Otherwise, a dilution system shall be used to operate the aerosol
measurement instruments in the permissible particle number concentration range. If possible,
dilution should be avoided to exclude a potential source of error. If it is not avoidable, the
dilution ratio shall be checked regularly.
-3
NOTE This document always refers to the particle number concentration, which is expressed in cm .
4.2 Aerosol transport
The transport tubing for aerosols shall consist of conductive materials, such as metal or carbon
embedded silicon, to avoid electrostatic effects and excessive losses. Similarly, all valves and
connectors on the aerosol transport path shall also consist of conductive materials. The length
of the tubing shall be as short as possible to avoid excessive losses due to diffusion.
4.3 Condensation particle counter
A condensation particle counter (CPC) is based on counting aerosol particles by first enlarging
them by using the particles as nucleation centres to create droplets in a supersaturated gas
and then counting them by optical means. Both n-butanol and water can be used as working
fluids. CPC can have different lower detection limits (D ), which are typically in the range
between 0,002 5 µm and 0,015 µm. As the particle number concentration of the used salt
aerosol is negligible in this particle size range, the exact value of D does not significantly
influence the results. It is recommended to use a CPC with a high analysed flow rate as higher
counting rates increase the statistical accuracy.
4.4 Optical particle counter
An optical particle counter (OPC) – also known as optical aerosol spectrometer or optical
particle size spectrometer (OPSS) – is based on detecting the light scattered by individual
aerosol particles. The OPC shall count and size individual aerosol particles in the 0,1 µm to
10 µm range. The counting efficiency of the OPC shall be ≥ 50 % for 0,1 µm particles. The OPC
shall have a minimum of six equally logarithmically spaced particle size channels per decade.
4.5 Aerodynamic particle sizer
An aerodynamic particle sizer (APS) is based on the acceleration of aerosol particles in a
nozzle. Due to their longer relaxation time, the time of flight of larger particles between two
laser beams is longer than for smaller particles. The APS shall count and size individual aerosol
particles at least in the particle size range from 5 µm to 10 µm. The counting efficiency of the
APS shall be 100 % in this particle size range. The APS shall have a minimum of six equally
logarithmically spaced particle size channels per decade.
5 Aerosol generation
5.1 Salt aerosol
The salt aerosol shall consist of polydisperse solid-phase (dry) KCl particles generated from
an aqueous KCl solution using a mass concentration of 50 g KCl per 1 l of de-ionized water.
Long-term storage of the salt shall be in accordance with Annex B. Figure 1 gives two examples
of common systems for generating the aerosol. The salt aerosol is generated by feeding
compressed particle-free air to the atomizer. Varying the operating air pressure of the generator
allows control of the time to reach the initial particle number concentration. Spray nozzles
producing size distributions with mode values above 0,1 µm shall not be used. The aerosol
leaving the atomizer shall be dried with a silica gel diffusion dryer or mixing with a sufficient
flow of dry air below the efflorescence humidity of KCl to ensure a solid-phase aerosol. It shall
be checked periodically that the relative humidity of the air leaving the diffusion dryer is less
than 55 %RH. The dried salt aerosol is introduced into the test chamber via tubes or hoses.
– 10 – IEC 63086-2-1:2024 © IEC 2024
a) Laskin atomizer b) Collison atomizer
Figure 1 – Schematic of a Laskin atomizer (a) and a Collison atomizer (b)
NOTE Experimental data for several air cleaners have shown that the CADR measured with non-neutralized and
neutralized salt aerosol particles does not significantly differ. Thus, neutralization of the generated salt aerosol
before entering the test chamber is optional.
5.2 Smoke aerosol
5.2.1 Type of cigarettes
Cigarettes with filters and a maximum tar content of 8 mg per cigarette shall be used. It is
recommended to use reference cigarettes, such as 1R6F reference cigarettes provided by the
University of Kentucky . To increase the reproducibility of test results, each laboratory shall
always use the same cigarettes. Before changing to a new type of cigarette, CADR tests for the
same DUT with the old and new cigarettes shall be performed and compared. Long-term storage
of the cigarettes shall be in accordance with Annex B.
5.2.2 Smoke aerosol generation
The cigarette(s) used for testing shall equilibrate for at least 24 h at (23 ± 2) °C and
(50 ± 5) %RH before use. Two different examples of smoke aerosol generators are shown in
Figure 2.
a) The cigarette is placed in a glass hood. Air is extracted either from the test chamber or the
surrounding after filtration by a pump, filtered and fed into the glass hood. By the arising
overpressure, the smoke of the burning cigarette is pressed through the cigarette's filter and
fed into the test chamber via tubes or hoses.
b) The cigarette is placed in an ejector pump based on the Venturi effect. A compressed air
source followed by a maintenance unit (including a water separator, particle and oil filter
and pressure control valve) provides a constant flow through the ejector pump. The smoke
of the burning cigarette is sucked by the arising underpressure through the cigarette's filter
and transported with the main flow inside the test chamber via tubes or hoses. The cigarette
smoke generation system is located inside an enclosure that is vented to the outside.
___________
The 1R6F reference cigarette supplied by the University of Kentucky is an example of a suitable product available
commercially. The exact nomenclature of the current batch of cigarettes can change over time. This information
is given for the convenience of users of this document and does not constitute an endorsement by IEC of
this/these product(s).
IEC 63086-2-1:2024 © IEC 2024 – 11 –
Figure 2 – Schematic of two possible methods to generate the smoke aerosol
NOTE 1 Equilibration of the cigarettes can either take place in a regulated climate cabinet or in a desiccator
containing a specific saturated salt solution. To prepare the salt solution, first NH Cl (at least 99,5 % purity) and then
(at least 99 % purity) is added to de-ionized water until the solution is fully saturated. The cigarettes are placed
KNO
on a platform above the saturated salt solution in the desiccator. If the humidity in the desiccator drops over time,
the exhausted solution is replaced by a fresh one.
NOTE 2 There are commercial smoke aerosol generators available that can be used for smoke generation. They
are typically based on principle a).
NOTE 3 The cigarettes can be lighted using either a manual lighter or an automatized solution.
5.3 Dust aerosol
5.3.1 Type of dust
Commercially available ISO 12103-1, A2 fine test dust shall be used. Long-term storage of the
dust shall be in accordance with Annex B.
5.3.2 Dust aerosol generation
The test dust shall be put for 24 h in a desiccator (container with a drying agent) with a relative
humidity below 20 %RH before use. Two examples of dust aerosol generation methods are
shown in Figure 3.
a) The dust aerosol can be continuously dispersed with a powder disperser based on the
principle shown in Figure 3a. The dust is filled little by little into the cylindrical solid material
reservoir and uniformly compressed with a tamper. The dust is conveyed onto a rotating
brush at a controlled feed rate. An adjustable flow of compressed air streams over the brush
and tears the particles out of the brush.
b) Alternatively, a light-duty dust injector (see ISO 5011:2020, Figure B.2) can be used as
shown in Figure 3b. The injector shall be operated such that the required particle number
concentrations listed in Table 2 are reached. These particle number concentrations are
considerably lower than those required by ISO 5011:2020. The test dust is filled in a small
funnel connected to the suction port of the ISO 5011:2020 dust injector. Filtered compressed
air is fed into the dust injector for a short time by opening a ball valve.
As both generation principles can lead to highly charged particles, the dust aerosol shall be
neutralized before entering the test chamber with an Kr neutralizer or an equivalent method,
such as soft X-rays or bipolar corona discharge.
– 12 – IEC 63086-2-1:2024 © IEC 2024
Figure 3 – Schematic of two possible methods to generate the dust aerosol
5.4 Pollen aerosol
5.4.1 Type of pollen
Non-defatted paper mulberry pollen including fragments shall be used. Long-term storage of
the pollen shall be in accordance with Annex B.
5.4.2 Pollen aerosol generation
Two examples of pollen aerosol generation methods are shown in Figure 4.
a) For generation of the pollen aerosol, 0,3 g to 1,0 g of pollen are weighed in a 60 ml
screw-top glass laboratory sample jar and stored in a desiccator with drying agent for a
minimum of 24 h prior to testing. Before the test, the sample jar is sealed airtight with a
screw top containing two fittings for air entry and pollen discharge. To disperse the pollen,
filtered compressed air is fed into the dust injector for a short time by opening a ball valve.
b) If the required initial particle number concentration of pollen cannot be reached in this setup
because of the deposition losses in the transportation tubes, the pollen jar can alternatively
be mounted inside the test chamber as shown in Figure 4b.
Figure 4 – Schematic of two possible methods to generate the pollen aerosol
IEC 63086-2-1:2024 © IEC 2024 – 13 –
6 Measurement of the CADR in maximum performance operation mode
6.1 Test methods
The CADR of an air cleaner generally depends on the size of the target pollutant. The
intention of this document is to determine CADR values for a range of particle sizes that occur
in indoor environments. However, it is not possible to cover the complete relevant particle size
range by using a single test aerosol and a single measurement technique. Thus, this document
provides test methods for four different particle size ranges (ultrafine, fine, medium, and
coarse). For each particle size range, a test aerosol yielding a sufficiently high particle number
concentration for accurate statistics and a measurement technique sensitive to particles in the
size range are chosen. For the fine particle size range, there are two alternative test aerosols,
which are expected to yield equivalent test results because of their similarity in the size
distribution.
It is not mandatory to perform the tests for all particle size ranges. However, for reporting results
(see Annex C), the CADR value shall be stated always in combination with the investigated size
range (ultrafine, fine, medium, or coarse). This ensures an unambiguous correlation between
the CADR value and the chosen test method.
NOTE Annex D describes a model how to derive an effective room size from the measured CADR value.
6.2 General
The test procedures described in 6.3 (natural decay rate) and 6.4 (total decay rate) are used
to determine the CADR of the DUT. For smoke, salt and dust, one measurement of the natural
decay rate taken on the same day as the total decay rate measurement is sufficient. For
pollen, a natural decay rate measurement shall be performed prior to each total decay rate
measurement. All tests shall be performed in a well-mixed test chamber in accordance with
the requirements in IEC 63086-1:2020, 5.6 to achieve repeatable and reproducible test results.
NOTE 1 The test methods in 6.3 and 6.4 are essentially the same. The only difference is that the DUT is switched
on before measuring the total decay rate in 6.4.
NOTE 2 Procedures for testing the DUT in automatic operation mode are under consideration for a future revision.
NOTE 3 The test procedures for the maximum performance operation mode can also be applied for other manual
operation modes, as defined in IEC 63086-1:2020, 3.11.
NOTE 4 A graphical scheme of the test procedure is s
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...