EN 60705:2012

SLOVENSKI STANDARD
01-julij-2012
*RVSRGLQMVNHPLNURYDORYQHSHþLFH0HWRGH]DPHUMHQMHODVWQRVWL
Household microwave ovens - Methods for measuring performance
Mikrowellengeräte für den Hausgebrauch und ähnliche Zwecke - Verfahren zur Messung
der Gebrauchstauglichkeit
Fours à micro-ondes à usage domestique - Méthodes de mesure de l'aptitude à la
fonction
Ta slovenski standard je istoveten z: EN 60705:2012
ICS:
97.040.20 âWHGLOQLNLGHORYQLSXOWL Cooking ranges, working
SHþLFHLQSRGREQLDSDUDWL tables, ovens and similar
appliances
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60705
NORME EUROPÉENNE
May 2012
EUROPÄISCHE NORM
ICS 97.040.20 Supersedes EN 60705:1999 + A1:2004 + A2:2006

English version
Household microwave ovens -
Methods for measuring performance
(IEC 60705:2010, modified)
Fours à micro-ondes à usage domestique Mikrowellengeräte für den Hausgebrauch
- und ähnliche Zwecke -
Méthodes de mesure de l'aptitude à la Verfahren zur Messung der
fonction Gebrauchstauglichkeit
(CEI 60705:2010, modifiée) (IEC 60705:2010, modifiziert)

This European Standard was approved by CENELEC on 2012-03-12. 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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60705:2012 E
Foreword
This document (EN 60705:2012) consists of the text of IEC 60705:2010 prepared by IEC/SC 59K
"Ovens and microwave ovens, cooking ranges and similar appliances", together with the common
modifications prepared by CLC/TC 59X "Performance of household and similar electrical appliances".
The following dates are fixed:
(dop) 2013-03-12
• latest date by which this document has to be
implemented
at national level by publication of an identical
national standard or by endorsement
(dow) 2015-03-12
• latest date by which the national standards conflicting
with this document have to be withdrawn

This document supersedes EN 60705:1999 + A1:2004 + A2:2006.
— the usable volume is renamed to calculated volume and the measurement method for the
calculated volume is revised (see 7.2)
— new definitions for microwave function, combination microwave function, set to off mode, set to
standby mode, cooling down period and food support in Clause 3;
— a method for measuring the energy consumption of the microwave function in Clause 9;
— more precise requirements for instruments and measurements in Table Z.1;
— measurement uncertainties of results in Clause Z.1;
— additional product specific requirements for measuring the energy consumption of low power
modes in Clause Z.2;
— a method for measuring the energy consumption for the cooling down period in Annex ZD
(informativ).
In this standard, the following print types are used:
– test specifications: in italic type
– notes: in small roman type
– other texts: in roman type.
Words in bold in the text are defined in Clause 3.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Clauses, subclauses, notes, tables, figures and annexes which are additional to those in
IEC 60705:2010 are prefixed “Z”.

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Endorsement notice
The text of the International Standard IEC 60705:2010 was approved by CENELEC as a European
Standard with agreed common modifications.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
[3] IEC 60350:1999 NOTE  Harmonized as EN 60350:1999 (modified).
[4] CISPR 11:2009 NOTE  Harmonized as EN 55011:2009 (modified).

COMMON MODIFICATIONS
1 Scope
Add the following sentence to Note 1:
– microwave ovens which cannot accept a load having a diameter of ≥ 200 mm or a height of ≥ 120 mm.
2 Normative references
Add the following references:
EN 60584-2:1993, Thermocouples  Part 2: Tolerances (IEC 60584-2:1982 + A1:1989)
EN 50564:2011, Electrical and electronic household and office equipment  Measurement of
low power consumption
1)
EN 60350-1: 20xx , Household electric cooking appliances  Part 1: Ranges, ovens, steam
ovens and grills - Methods for measuring performance (IEC 60350-1:2011, modified)
3 Definitions
In 3.1, delete Note 1 and renumber Note 2 in Note 1.
Add the following note to 3.2:
Note 1 to entry: Energy transfer by steam is included.

Add the following new definitions to Clause 3:
3.Z1 microwave function
heat transfer exclusively by electromagnetic energy in the ISM frequency band of 2 450 MHz

3.Z2 combination microwave function
heat transfer by electromagnetic energy simultaneously or sequentially with thermal heat
Note 1 to entry: Thermal heat can be a conventional heating function, a forced air circulation function, a hot steam
function or steam function. Definitions are given in EN 60350-1.

3.Z3 Set to off mode
action where the product is switched off using appliance controls or switches that are
accessible and intended for operation by the user during normal use to attain the lowest
power consumption that may persist for an indefinite time while connected to a main power
source and used in accordance with the manufacturer’s instructions. All actions required to
set to off mode like for example empty the water tank, remove food, close the door etc have
to be taken
Note 1 to entry: For definition of off mode EN 50564 is relevant.

3.Z4 Set to standby mode
action where the product is switched to standby using appliance controls or switches that are
accessible and intended for operation by the user during normal use to attain the lowest
power consumption that may persist for an indefinite time while connected to a main power
source and used in accordance with the manufacturer’s instructions
Note 1 to entry: For definition of standby mode EN 50564 is relevant.

1)
At draft stage.
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3.Z5 cooling down period
unstable condition persisting after completion of the active mode and the appliance is set to
off mode where the power consumption may change without any intervention by the user

3.Z6 food support
horizontal support in the cavity on which the load is placed. If the appliance is fitted with a
turntable, the turntable is the food support. The food support can also be a shelf or a
reciprocating tray. If recommended by manufacturer’s instruction also the cavity bottom can
be the food support
4.1 According to type
Add the following paragraph and NOTE after the second dash:
The manufacturers shall define the primary cooking function of the appliance, microwave
function or thermal heat. The primary cooking function has to be measured with an existing
method according to energy consumption.
If the primary cooking function is declared as a microwave function the EN 60705 shall be
applied for energy consumption measurement. If the primary cooking function is declared as a
thermal heat the EN 60350-1 is applied for energy consumption measurement.

NOTE Z1 There is no measurement method for the energy consumption for grilling and steam functions.

4.2 According to characteristics
After the first dash item, add the following new dash item:
– dimensions of shelves;
Replace the second dash item by:
– moved food support, e.g. reciprocating tray, turntable;
After the last dash item, add the following new dash item:
–  possible thermal heating modes (grilling, hot air, steam function etc.).
5 List of measurements
Revise Clause 5, Table 1:
• Line 6: Cancel efficiency, add instead energy consumption.
• Line 5: Add efficiency to microwave power output

Table 1  List of measurements
Item of measurement Clause or Reproducibility Microwave ovens Combination
1)
subclause microwave ovens
External dimensions 7.1 Yes * *
Usable cavity dimensions 7.2 Yes * *
Calculated cavity volume 7.3 Yes * *
Microwave power output and 8 Yes *
efficiency
Energy consumption for the 9 Yes *
microwave function
Square tank 10.1 Yes *
Multiple cup 10.2 Yes *
Heating beverages 11.1 Yes *
Heating simulated food 11.2 Yes *
Egg custard 12.3.1 No *
Sponge cake 12.3.2 No *
Meatloaf 12.3.3 No *
Potato gratin 12.3.4 No  *
Cake 12.3.5 No  *
Chicken 12.3.6 No *
Meat defrosting 13.3 No *
Batter Annex A No *
* Test is applicable.
1)
Except for the tests of 10.1, these tests are also applicable to combination microwave ovens when operated in
the microwave only mode.
The methods described in Clauses 8 and 9 are only applicable for appliances with microwave
function. If a combination microwave oven doesn’t provide a microwave function the tests
are not applicable. The energy consumption measurement cannot be carried out with
combined microwave function.
6.1 General
Substitute “turn table or any metal accessories” by “food support”:
When a metal food support is provided and used for the measurements, the load position
and the corresponding shape of the metal food support shall be reported,.
nd
Add the following sentence after the 2 paragraph:
If not otherwise specified the food support is placed in the cavity in its lowest position.
6.2 Supply voltage
Replace the text of 6.2, including the note, by:
The supply voltage shall be maintained at the main terminal at 230 V ± 1 % or at 400 V ± 1 %
as defined by the manufacturer’s installation guide, while the microwave operation is switched
on. The supply frequency shall be at a nominal 50 Hz ± 1 %.
The supply voltage measured during the tests shall be recorded.

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The supply voltage shall be essentially sinusoidal.
Add the following notes:
NOTE Z1 For recording the supply voltage only the power on period is relevant.
NOTE Z2 In case of a fixed cable, the plug (or the end of the cable) is the reference point to maintain the
voltage.
6.3 Test room
Add the following requirements after the first paragraph:
For tests Clauses 8 and 9 the temperature shall be at 23 °C ± 2 °C during the complete test.
The measurement of the ambient temperature shall not be influenced by the appliance itself
or by any other appliance.
6.5 Initial condition of the oven
Replace the whole clause by:
At the beginning of each test, the oven has not been operated for a period of at least 6 h.
However, this period may be reduced if it can be demonstrated that the microwave power
output, as determined in Clause 8, is available earlier.
NOTE 1 The temperatures of the magnetron and the power supply shall be within 5 K of the ambient temperature
and 2 K of the ambient temperature for tests Clauses 8 and 9.
NOTE 2 Forced cooling may be used to assist in reducing the oven temperature.

6.Z7 Instruments and measurements
Instruments used and measurements made for this document shall comply with the following
specifications.
Table Z.1
Instruments:
Parameter UnitMinimum Minimum accuracy Additional
resolution requirements
mass g 0,5 g ± 1 g
temperature
ambient temperature °C 0,1 °C ± 1K
water load °C 0,1 °C ± 1,5 K 1 mm steel tube
diameter, class 1
according to
EN 60584-2
time s 1s ± 1 s
energy Wh - ± 1 %
Measurements:
Parameter UnitMinimum Minimum accuracy Additional
resolution requirements
Electrical energy Wh  ± 1,0 %
voltage V  ± 0,5 %
temperature and energy    sampling rate ≤ 1s
consumption measurement
For test 9.5.2 and Z1 the power W  according to EN 50564
measurement requirements shall
be in accordance with EN 50564

6.Z8 Positioning the appliance
Freestanding appliances are placed with their back against a wall and positioned away from
sidewalls, unless otherwise specified in the instructions. Other appliances are installed in
accordance with the instructions for installation.
Change headline of 7.2 Usable internal dimensions and usable volume to 7.2 Usable internal
dimensions and calculated volume.
7.2 Usable internal dimensions and calculated volume
7.2.1 General
Add the following sentence before the following note:
The turntable is essential for the operation of the appliance therefore it is not removed.
Add the following note after the first paragraph:
NOTE Safety operation should be guaranteed. Therefore necessary parts e.g. lamp cover cannot be
removed for measuring the usable volume.

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rd
Revise reference in 7.2.1, 3 paragraph:
…according to 7.2.2 – 7.2.4.
nd
Change the 2 drawing of Figure 2b
...