IEC 60879:2019/AMD1:2025

IEC 60879 ®
Edition 2.0 2025-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
Comfort fans and regulators for household and similar purposes –
Methods for measuring performance

Ventilateurs de confort et régulateurs de vitesse pour applications domestiques
et analogues –
Méthodes de mesure de l'aptitude à la fonction

IEC 60879:2019-05/AMD1:2025-03(en-fr)

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IEC 60879 ®
Edition 2.0 2025-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
Comfort fans and regulators for household and similar purposes –

Methods for measuring performance

Ventilateurs de confort et régulateurs de vitesse pour applications domestiques

et analogues –
Méthodes de mesure de l'aptitude à la fonction

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 23.120  ISBN 978-2-8327-0297-0

– 2 – IEC 60879:2019/AMD1:2025 © IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
COMFORT FANS AND REGULATORS FOR HOUSEHOLD AND SIMILAR
PURPOSES – METHODS FOR MEASURING PERFORMANCE

AMENDMENT 1
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
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
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Amendment 1 to IEC 60879:2019 has been prepared by subcommittee 59L: Small household
appliances, of IEC technical committee 59: Performance of household and similar electrical
appliances.
The text of this Amendment is based on the following documents:
Draft Report on voting
59L/286/FDIS 59L/288/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 Amendment is English.

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/.
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.
___________
3 Terms and definitions
3.2
conventional fan
Add "directly visible" before "propeller".
3.4
bladeless fan
Replace the existing definition with the following:
comfort fan with concealed impeller to pressurize and eject air flow from non-free air ducting
outlet
3.6
table fan
Replace "comfort" with "conventional".
3.7
pedestal fan
Replace "comfort" with "conventional".
3.18
fan sound power level
Replace ", measured at the outlet side" with "measured according to IEC 60704-2-7".
3.20
equivalent sweep size diameter of bladeless fan
Replace the existing term and definition with the following:
desktop type bladeless fan
bladeless fan intended for use on a table
Note 1 to entry: Desktop type bladeless fans have a maximum adjustable height or non-adjustable height less than
500 mm.
Add, after 3.20, the following new term and definition:

– 4 – IEC 60879:2019/AMD1:2025 © IEC 2025
3.21
floor type bladeless fan
bladeless fan intended for use on floor
Note 1 to entry: Floor type bladeless fans have a minimum adjustable height or non-adjustable height equal to or
greater than 500 mm.
5 Tests
5.2.1.1 Test chamber
Delete, in the fifth paragraph, the word "suitably".
5.2.1.4 Procedure for test
Replace the existing text of the second paragraph with the following:
For the air velocity other than the origin point at axis of the fan blade (3 in Figure 2), the
measurements in each of four directions shall commence at a point 40 mm from the axis of the
fan blades and shall progress horizontally to the fan blade axis in increments of 80 mm along
the semi-diagonals of the test chamber (3 to A, 3 to B, 3 to AA and 3 to BB in Figure 2). The
measurements shall be continued in the 80 mm increments until the air velocity in each of the
four directions falls below 9 m/min.
Add the following new paragraph after the second paragraph:
For the air velocity of the origin point at the axis of the fan blade with a radius of 40 mm, the
measurement shall be carried out by one anemometer positioned on the origin point at the axis
of the fan blade.
5.2.1.5 Calculation of flow rate
Add the following new paragraph after the first paragraph:
For the circle around the original point at the axis of the fan blade with a radius of 40 mm, if the
air velocity is equal to or greater than 9 m/min, the product of the circle area and the air velocity
through the circle shall be taken as the air delivery through the circle. If the air velocity is less
than 9 m/min, the air delivery through the circle is ignored.
Add, in the second paragraph, "the circle and" after "through".
5.2.2.1 Test chamber
Replace the existing text of the first paragraph with the following:
The fan shall be tested in a test chamber having the following dimensions: length: 4 500 mm
for the fan with sweep size not larger than 400 mm or tower fans, and 6 000 mm for the fan
sweep size larger than 400 mm or bladeless fans, width: 4 500 mm, height: 3 000 mm. The
chamber shall be protected from extraneous draught.

5.2.2.2 Arrangement of apparatus
Replace the existing text of the second paragraph with the following:
The distance from the geometrical centre of the fan blades or the air outlet to the floor shall be
at least:
– 1 200 mm for the fan with sweep size not larger than 400 mm, bladeless fans or tower fans;
or
– 1 500 mm for the fan with sweep size larger than 400 mm.
The arrangement shall ensure that all valid air vel
...