SIST EN 60705:2012
Household microwave ovens - Methods for measuring performance
Household microwave ovens - Methods for measuring performance
IEC 60705:2010 applies to microwave ovens for household use. It also applies to combination microwave ovens. This standard defines the main performance characteristics of household microwave ovens which are of interest to the user, and it specifies methods for measuring these characteristics. This fourth edition cancels and replaces the third edition published in 1999, its amendment 1 (2004) and its amendment 2 (2006), and constitutes a technical revision. The main changes from the previous edition are as follows: - the definition of rounding is given in 3.5; - the usable volume and the overall volume are respectively determined in 7.2 and 7.3.
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
La CEI 60705:2010 s'applique aux fours à micro-ondes à usage domestique. Elle s'applique également aux fours à micro-ondes combinés. Cette norme définit les principales caractéristiques d'aptitude à la fonction des fours à micro-ondes à usage domestique qui intéressent les utilisateurs, et spécifie les méthodes de mesure pour évaluer ces caractéristiques. Cette quatrième édition annule et remplace la troisième édition parue en 1999, son amendement 1 (2004) et son amendement 2 (2006); elle constitue une révision technique. Les changements principaux par rapport à l'édition précédente sont les suivants: - le terme 'arrondi' est défini en 3.5; - le volume utile et le volume global sont déterminés respectivement en 7.2 et 7.3.
Gospodinjske mikrovalovne pečice - Metode za merjenje lastnosti
Ta mednarodni standard se uporablja za mikrovalovne pečice za gospodinjsko uporabo. Uporablja se tudi za kombinirane mikrovalovne pečice. Ta standard določa glavne lastnosti delovanja gospodinjskih mikrovalovnih pečic, ki zanimajo uporabnika, in metode za merjenje teh lastnosti.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 60705:2012
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
SIST EN 60705:2012 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 60705:2012
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SIST EN 60705:2012
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
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EN 60705:2012 - 2 -
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.
EN 60705:2012 includes the following significant technical changes with respect to EN 60705:1999:
— 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).
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EN 60705:2012 - 4 -
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
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EN 60705:2012 - 6 -
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.
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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 by an improved version which better shows r . Adapt also the
max
key:
c
t
r
max
d
i
Key
d usable depth t turntable
g heating element I inside surface of oven door
h usable height w usable width
c centre of rotation of the turntable r distance from c to the nearest wall
Change headine of 7.2.6 Usable volume to 7.2.6 Calculated volume
7.2.2 Usable height
Add to the first sentence:
….from the centre of the cooking cavity bottom or turntable to the lowest point on the ceiling.
7.2.6 Calculated volume
Change the wording in the first sentence “next full litre” to “nearest full litre”.
nd
Add after the 2 paragraph:
If the turntable can be switched off the rectangular volume from the dimensions width, height and
depth is calculated.
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EN 60705:2012 - 10 -
Both circular and rectangular volumes are stated.
7.2.Z7 Dimensions of food support
The usable width and usable depth of the shelf and for a round shelf the diameter are
measured. The dimensions are determined 5 mm above the surface of the shelf.
The surface area is calculated and stated in square centimetres, rounded to the nearest
2
10 cm .
NOTE The food support may be a shelf, a grid, baking sheet, a turntable or the bottom of cavity.
8 Determination of microwave power output
Replace the title by
8 Determination of microwave power output and energy efficiency
Add the following title:
8.1 Determination of microwave power output
nd
Revise the 2 paragraph:
A cylindrical container of borosilicate glass is used for the test as described in Clause 9,
Table Z.2. It has an external diameter of approximately 190 mm and a height of approximately
90 mm. The mass of the container is to be stated.
th nd
Revise the 4 paragraph, 2 sentence:
The food support for microwave heating is placed in the appliance according to the
instructions of manufacturers. The container is placed in the centre of this support
immediately.
Revise the formula and the key therefore:
4,187 ⋅ m()T −T + 0,55⋅ m(T −T)
w 1 0 c 1 A
P =
t
where
P is the microwave power output, in watts;
m is the mass of the water, in grams;
w
m is the mass of the container, in grams;
c
T is the ambient temperature, in degrees Celsius;
A
T is the initial temperature of the water, in degrees Celsius;
0
T is the final temperature of the water, in degrees Celsius;
1
t is the heating time, in seconds, excluding the magnetron filament heating-up time.
9 Efficiency
Change Clause 9 to 8.2 Efficiency:
8.2 Efficiency
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Add a new Clause 9:
9 Energy consumption for the microwave function
9.1 General
The purpose of this test is to measure the energy consumption of the appliance by a defined
load and temperature rise which is considered as energy consumption for a cooking cycle.
Therefore three different water loads in glass containers which have different sizes and
shapes are used.
9.2 Test load
Three different test loads as shown in Table Z.2 are used:
Table Z.2 – test loads for measuring the energy consumption
Load Glass container, Nominal water amount (m )
w
cylindrical (in mm) pure tape water (in g)
made of borosilicate glass
Small (s) External diameter Ø 90 ± 1 275 ± 1
external height 125 ± 1
capacity 600 ml
Maximum weight 200 g
Middle (m) External diameter Ø 140 ± 1 350 ± 1
external height 76 ± 1
capacity 900 ml
Maximum weight 250 g
Large (l) External diameter Ø 190 ± 1 1000 ± 1
external height 90 ± 1
capacity 2000 ml
Maximum weight 450 g
The properties of the glass containers shall be in accordance with 3.3. The actual mass of the
used container (m ) is determined and noted. The actual mass of the water amount is
c
determined and noted (m ).
w
NOTE For calculating the energy consumption the heat capacity of the beaker is taken into account. Therefore
the theoretical energy in the beaker is calculated.
9.3 Preparation
At the start of the test the empty glass container and the appliance shall have laboratory
ambient temperature. The water is poured into the container and stirred. The temperature is
measured when the average temperature of container and water is balanced. The initial
temperature, T , shall be in the range of 10 °C ± 0, 5 °C.
0
NOTE 1 Water having an initial temperature 1°C – 2 °C below the target temperature minimizes the stirring time.
NOTE 2 The filled container should not be stored in the fridge to avoid the rims getting too cold.
NOTE 3 To guarantee a sufficient stirring a thermocouple with a plastic adapter should be used. An example is
described in Annex ZB. The stirrer should have a low heat capacity.
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9.4 Positioning the load in the appliance
The food support for microwave heating is placed in the appliance according to the
instructions of manufacturers. The container is placed in the centre of this support
immediately.
If no instructions are given the container is placed in the centre of the turntable or
reciprocating tray. If the appliance is not fitted with a turntable or reciprocating tray the load is
placed on the lowest possible shelf position.
9.5 Measurement of energy consumption for a cooking cycle
The energy consumption for a cooking cycle is measured.
Two tests are performed for each amount of water (see 9.2):
The measurement shall be started by switching on the appliance within 30 s after the
preparation of the water load. The power control for the microwave function is set to the
highest possible position. If available the measurements are made with boost function.
The oven is operated and the time for the water to reach a temperature in between 60 °C and
65 °C (T ) is measured (t ). The oven is then switched off. The water load is removed from
high high
the oven and positioned on a thermally insulating pad. The water is stirred with the
thermometer and the final temperature is measured within 20 s after heating is finished.
The oven is cooled down (see 6.5) and the measurement with the same water load is
repeated with a target temperature of 55 °C - 60 °C (T ). The time is measured (t ).
low low
The difference between T and T shall be minimum 2 K, otherwise one of the
high low
measurements shall be repeated with an adjusted time.
This procedure is carried out for each load defined in 9.2.
The following data shall be recorded for each water load:
– heating time t and t in seconds; including the magnetron filament heating-up time;
low high
– initial temperature T in °C;
0
– final temperature T and T in °C;
low high
– energy consumption W and W in Wh;
low high
– ambient temperature in °C at the start of the test (when the water is positioned in the
appliance);
– actual and nominal mass of water, in grams.
NOTE 1 The energy consumption of components such as lamps and fans, which are automatically switched on
with the appliance, is included in the measurement.
NOTE 2 The recording of the heating time t and t are informative and simplify the measurement. Therefore
low high
the magnetron filament heating-up time is included.
NOTE 3 It is recommended to start with the higher temperature range of 60 °C – 65 °C (T ).
high
NOTE 4 To guarantee a sufficient stirring a thermocouple with a plastic adapter should be used. Examples are
described in Annex ZB. The stirrer should have a low heat capacity.
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9.6 Calculation for the energy consumption of a cooking cycle
The energy consumption to reach a temperature increase of 50 K (W ) is calculated for each
50
load (see 9.2) using the linear regression based on the measured data points.
The temperature rise (∆T) is calculated as the difference between the initial temperature T
0
and final temperature T or T
low high.
∆ T = T − T
(1a)
high high 0
∆ T = T − T
(1b)
low low 0
To calculate the total temperature rise the heat capacity of the container is considered as
follows for ∆T and ∆T
high low
0 ,55 × m × ∆ T
c high
total ∆ T = + ∆ T
high high (2a)
4 ,187 × m
w
0 ,55 × m × ∆ T
c low
total ∆ T = + ∆ T
low low (2b)
4 ,187 × m
w
where
m is the actual mass of the water, in grams;
w
m is the nominal mass of water (275 g, 350 g, 1 000 g);
w,n
m is the actual mass of the container, in grams;
c
T is the initial temperature of the water, in degrees Celsius;
0
T is the final temperature of the water for the low temperature range, in degrees Celsius;
low
T is the final temperature of the water for the high temperature range, in degrees Celsius;
high
The total temperature rise (total ∆T) is normalized by the actual load.
m
w
norm ∆ T = total ∆ T ×
high high
(3a)
m
w , n
m
w
norm ∆ T = total ∆ T ×
low low
(3b)
m
w , n
The quotient of energy consumption per temperature rise (Q) in Wh/K is calculated.
(W − W )
high low
Q =
(4)
()norm ∆ T − norm ∆ T
high low
The energy consumption to heat up the amount of water by 50 K (W ) is calculated.
50
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EN 60705:2012 - 14 -
W =W + Q×()50 − norm∆T
(5)
50 low low
W is determined for the small, middle and large load and noted.
50
9.7 Final result
The final result (W ) is calculated by sum the calculated energy consumption to reach 50 K
final
(see 9.6) from the small (s), middle (m) and large (l) load.
3×W + 6×W + 2×W
50,s 50,m 50,l
W =
final, cooking cycle
11
This final energy consumption W represents the energy consumption for an average cook
final
cycle for microwave cooking energy consumption.
NOTE 1 The weighting factors are related to average household use and represent typical loads.
NOTE 2 The cooling down period energy consumption is not taken into account in the final energy consumption.
NOTE 3 As an example for data and calculation sheet, see Annex ZE. An Excel 97-2003 evaluation program,
which corresponds directly to Annex ZE, is available with this standard for the automatic calculation of the energy
consumption (Clause 9). These calculations can also be made in any other spreadsheet program under the
condition that the same results are achieved.
9.8 Reporting of test results
The following data shall be reported:
a) microwave power output measured according 8.1;
b) type of the appliance, available heating function(s);
c) fitted with turntable or reciprocating tray;
d) position of the loads;
e) supply voltage at which the measurements were made;
f) energy consumption in Wh rounded to one decimal according to 9.6 for each load;
g) final result per cooking cycle, W , in Wh to one decimal according to 9.7.
final
Add two new clauses:
Z.1 Measurement Uncertainty of results
Z.1.1 Energy consumption for a cooking cycle
The energy consumptions determined according to 9.7 shall not be greater than the value
declared by the manufacturer plus 15 %.
If the result of the test carried out on the first appliance is greater than the declared value
plus 15 % the test shall be carried out on a further three appliances, which shall be randomly
selected from the market.
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The arithmetical mean of the values of these three appliances shall not be greater than the
declared value plus 10 %.
Z.1.2 Result of microwave power output
The result of microwave power output according to 8.1 shall not be lower than the value
declared by the manufacturer minus 15 %.
If the result of the test carried out on the first appliance is lower than the declared value
minus 15 % the test shall be carried out on a further three appliances, which shall be
randomly selected from the market.
The arithmetical mean of the values of these three appliances shall not be lower than the
declared value minus 10 %.
Z.2 Consumption measurement of low power modes
In addition to EN 50564 following requirements are given.
For an appliance composed of a combination of separate units which may consist of one of a
variety of different hobs and one of a variety of different ovens the recommended combination
as declared in the manufacturer’s instruction are used for the test. If appliance A (e.g. hob)
can only be operated combined with appliance B (e.g. oven), first the low power mode for
appliance B without appliance A is measured and noted. Afterwards the low power mode for
the appliance B combined with the appliance A is measured. The low power consumption of
appliance A is calculated by the difference between these two measurements.
When preparing the test report for an appliance composed of a combination of separate units
the combination of types of main powered parts (hobs, ovens, grills, warming plates, griddles
etc) used for the measurement shall be recorded. The consumption of low power modes shall
be noted for each unit A and B separately.
NOTE The measurement procedure for energy consumption of hobs is described in EN 60350-2 and for ovens it
is described in EN 60350-1.
When testing appliances that are fitted with a clock, the clock shall be adjusted to the correct
time and date as specified in the instructions.
In case energy consumption is influenced by continuous changing displayed time of a clock, a
measurement period of 24 h is necessary. The average value from this measurement is noted.
If the appliance has an ambient light sensor, two illuminance levels in accordance to
EN 50564 shall be measured during the 24 h period, each illuminance level for 12 h.
If an option is provided to the user to switch off the display both the switched on and switched
off mode is to be tested and reported.
10.2.1 Procedure
nd
Substitute in the paragraph after the Figure 3, 2 sentence “shelf” by “food support”.
10.3.1 Procedure
rd
Substitute in the paragraph after the Figure 4, 3 sentence “oven shelf” by “food support”.
Change in Figure 5a “shelves” by “food supports”.
Adapt also the in Figure 5a included sentence:
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SIST EN 60705:2012
EN 60705:2012 - 16 -
Cup 3 is placed at the centre of the food support. The other cups are placed on the diagonal
midway between the centre and each corner.
Add a note after Figure 4 – Cup:
NOTE Possible supplier: Schott Duran Beaker, catalogue number: 21 11 624, high form, with sprout, capacity: 100
ml, external diameter at the bottom: 48mm, height: 80mm.
11.1.2 Procedure
st rd
Substitute in the 1 paragraph, 3 sentence “shelf” by “food support”.
Change in Figure 6a and 6b “shelves” by “food supports”.
Change in Figure 6c and 6d “circular shelves” by “turntables”.
11.2.2 Procedure
st
Substitute in the paragraph after Figure 7, 1 sentence
...
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