IEC 60350:1999/AMD2:2008
(Amendment)Amendment 2 - Electric cooking ranges, hobs, ovens and grills for household use - Methods for measuring performance
Amendment 2 - Electric cooking ranges, hobs, ovens and grills for household use - Methods for measuring performance
Amendement 2 - Cuisinières, foyers de cuisson, fours électriques et grils à usage domestique - Méthodes de mesure de l'aptitude à la fonction
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IEC 60350
Edition 2.0 2008-03
INTERNATIONAL
STANDARD
AMENDMENT 2
Electric cooking ranges, hobs, ovens and grills for household use – Methods for
measuring performance
IEC 60350 A2:2008(E)
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.
IEC Central Office
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: inmail@iec.ch
Web: www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
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It also gives information on projects, withdrawn and replaced publications.
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in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
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IEC 60350
Edition 2.0 2008-03
INTERNATIONAL
STANDARD
AMENDMENT 2
Electric cooking ranges, hobs, ovens and grills for household use – Methods for
measuring performance
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
R
ICS 97.040.20 ISBN 2-8318-9645-2
– 2 – 60350 Amend. 2 © IEC:2008(E)
FOREWORD
This amendment has been prepared by subcommittee 59K: Ovens and microwave ovens,
cooking ranges and similar appliances, of IEC technical committee 59: Performance of
household electrical appliances.
The text of this amendment is based on the following documents:
FDIS Report on voting
59K/161/FDIS 59K/163/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the maintenance result date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.
_____________
Page 7
2 Normative references
Add, to the existing list, the title of the following standard:
IEC 62301:2005, Household electrical appliances – Measurement of standby power
Page 13
5 General conditions for the measurements
5.1 Test room
Replace the existing second paragraph, added in Amendment 1, by the following:
For tests 8.1, 8.3 and 8.4.2, 23°C ± 2 °C shall be maintained during the complete test.
60350 Amend. 2 © IEC:2008(E) – 3 –
5.3 Instrumentation
th
Add the following 8 dash at the end of the existing list added in Amendment 1:
– the scale for weighing the ingredients shall be accurate to ±0,1 g.
Page 15
6 Dimensions and mass
6.3 Internal dimensions of ovens
Replace the existing title and text of this subclause by the following:
6.3 Usable internal dimensions and usable volume of ovens
Removable items specified in the user instructions shall be removed before a measurement is
carried out.
The measurement of the usable oven volume is to be carried out at ambient temperature.
The height, width and depth of the usable volume in the cavity shall be measured in
accordance with 6.3.1 to 6.3.3. The measurement procedure is also shown in Figure 4a.
For verification purposes a gauge, as shown in Figure 4b, shall be used to determine all of the
three dimensions. The gauge shall be used without appreciable force.
Dimensions are stated in millimetres.
6.3.1 Usable height
The usable height is the maximum length of a cylinder with a diameter of 200 mm reaching
vertically from the centre of the cavity floor to the lowest point on the ceiling. The lowest point
of the ceiling can be constituted by a lamp, a heating element or similar object in the area of
the cylinder.
In the event that either the width or the depth of the cavity is less than 250 mm, the diameter
of the cylinder to be measured shall be reduced to 120 mm.
NOTE The centre of the cavity bottom is defined by the middle of the usable depth and the middle of the usable
width.
6.3.2 Usable width
The usable width is the maximum length of a cylinder with a diameter of 200 mm reaching
horizontally from the left-hand side wall to the right-hand side wall of the cavity.
In the event that either the height or the depth of the cavity is less than 250 mm, the diameter
of the cylinder to be measured shall be reduced to 120 mm.
NOTE The centre of the side wall of the cavity is defined by the middle of the usable depth and the middle of the
usable height.
– 4 – 60350 Amend. 2 © IEC:2008(E)
6.3.3 Usable depth
The usable depth is the maximum length of a cylinder with a diameter of 200 mm reaching
horizontally from the centre of the rear wall to the inner face of the closed door.
In the event that either the width or the height of the cavity is less than 250 mm, the diameter
of the cylinder to be measured shall be reduced to 120 mm.
For measuring the usable depth, the gauge is placed on a support in such a way that the axis
lies horizontally in the centre of the cavity, the axis being extended slightly over the expected
usable depth. The door is closed carefully so that the gauge is compressed to give the usable
depth.
NOTE The centre of the rear wall of the cavity is defined by the middle of the usable height and the middle of the
usable width.
6.3.4 Usable volume
The usable volume is calculated from these three dimensions and is stated in litres rounded to
the next full litre.
Page 15
Add the following new subclause 6.4:
6.4 Overall internal dimensions and overall volume of ovens
Where the surfaces forming the boundaries of the cavity incorporate protrusions or
depressions, the planes used for measurement shall be those comprising the largest
percentages of the total areas of the surfaces. Holes in surfaces shall be disregarded when
calculating areas for this determination.
The following volumes or spaces shall be disregarded:
– those occupied by removable items specified by the manufacturer as not essential for the
operation of the appliance, such as shelves, racks or temperature probes;
– those occupied by heating elements;
– those occupied by minor irregularities in the cooking compartment walls, including covers
over temperature sensors and lamps;
– those occupied by the convection baffle;
– corner radii smaller than 50 mm at the intersections of the interior surfaces of the cooking
cavity.
Dimensions are stated in millimetres.
NOTE The overall dimensions of warming drawers may be measured using the same principles.
6.4.1 Overall height (H)
Overall height (H) is the maximum vertical distance in mm between the plane of the cooking
cavity bottom and the plane of the cavity ceiling.
6.4.2 Overall width (W)
Overall width (W) is the maximum horizontal distance in mm between the planes of the cavity
side walls.
60350 Amend. 2 © IEC:2008(E) – 5 –
6.4.3 Overall depth (D)
Overall depth (D) is the maximum horizontal distance in mm from the plane of the inside
surface of the door when closed to the plane of the rear cavity wall.
6.4.4 Overall volume of rectangular cavities
The overall volume is the total internal volume of the cavity in which cooking takes place,
expressed as the product of H, W and D determined as above, divided by 10 and rounded to
the nearest litre.
6.4.5 Overall volume of non-rectangular cavities
Non-rectangular cavities shall have the volume of any non-conforming section such as a
curved door or cavity wall determined by direct measurement and the application of
conventional geometrical calculations. The remainder of the cavity shall be treated as a
rectangular cavity and the individual volumes added together. The volume is expressed to the
nearest litre.
Renumber existing subclauses 6.4 to 6.10 as 6.5 to 6.11, respectively.
Page 31
8.4.2 Small cakes
Replace the entire existing subclause 8.4.2 by the following new subclause:
8.4.2 Small cakes
This test is intended to assess the vertical and horizontal heat distribution, especially for a
mixture that rises during cooking.
NOTE The test is carried out using the general conditions of measurements as stated in Clause 5.
8.4.2.1 Ingredients
The quantities of ingredients for 30 to 40 small cakes are indicated in Table 3. For a
reproducible result always prepare the same amount and discard any surplus mixture.
– 6 – 60350 Amend. 2 © IEC:2008(E)
Table 3 – Ingredients
Quantities
Ingredients Remarks
g
Unsalted butter should be used. If unsalted butter is not
Butter, with a fat content of
available the salt content of butter should be subtracted from
340 ± 0,5
83 % ± 2 %
the salt added to the mixture.
White sugar, fine (grain size d95/d05: 90 % of the sugar crystals shall have a grain size of
340 ± 0,5
0,10 mm – 0,35 mm, d95/d05) 0,10 mm – 0,35 mm
Middle sized hen eggs (approximately 55 g ± 5 g) are beaten
and sieved until homogeneous, then weighed.
Eggs
300 ± 1
If frozen egg mixture is used, follow the instructions of
Clause C.1.
Wheat flour
Gluten: at least 24,0 %
without raising agent, unbleached
450 ± 1
Mineral content: maximum 0,5 %
(dry substance)
Phosphate baking powder (double acting) shall be used (not
baking soda).
Baking powder
15 ± 0,5
Salt 6 ± 0,1
NOTE 1 For reproducible results ingredients as defined in Annex C shall be used.
NOTE 2 The eggs are sieved to remove any chalazae.
NOTE 3 If more than 40 small cakes are required, two identical kitchen machines should be used simultaneously.
8.4.2.2 Paper cases
As the paper quality affects the rising height and spreading, only the paper cases specified in
Annex C shall be used for reproducible results. The paper cases are 48 mm in base diameter
and 29 mm in height. They are made of 70 g/m bleached greaseproof paper.
NOTE A supplier of paper cases is indicated in Annex C.
8.4.2.3 Quantity
The baking sheet shall be measured according to 6.4 and cover at least 80 % of the usable
width and 70 % of the usable depth of the cavity measured according to 6.3. If the supplied
baking sheet or the sheet recommended in the instructions fits these dimensions, this baking
sheet shall be used. If the supplied or recommended baking sheet does not fit the above
condition or no recommendation is given, then a baking sheet fitting the above condition,
made of aluminium, no coating, matt finished, 0,9 mm ± 0,1 mm thickness, lip height
maximum 6 mm shall be used.
The width and the depth of the baking sheets are measured in accordance with 6.4 and each
divided by 75 mm to give the number of small cakes to be placed along its sides. The
numbers are rounded down to give a whole number of cakes. Multiply the number of cakes
from the depth and the width to give the total number for the whole tray.
Example:
A width of 470 mm divided by 75 mm equals 6,3. This gives 6 columns of cakes.
A depth of 295 mm divided by 75 mm equals 3,9. This gives 3 rows of cakes.
60350 Amend. 2 © IEC:2008(E) – 7 –
Therefore the total number of cakes on the tray is 18.
The base of the outermost cakes should be at a distance of approximately 14 mm from the
edge of the usable area of the baking sheet measured according to 6.4. Distribute the cakes
evenly on the tray, in such a way that they do not touch each other.
The manufacturer’s instructions regarding the number of baking sheets which may be cooked
simultaneously are followed.
8.4.2.4 Procedure
All ingredients shall be at ambient temperature before starting.
Beat together butter and sugar in a food mixer until it becomes soft and pale in colour so that
all the sugar is incorporated into the mix. Gradually add the egg mixture. Sift the flour, baking
powder and salt together and gently fold into the mixture; loosen the mixture as required from
the edge of the bowl to ensure that the mixture is homogeneous.
The temperature of the mixture shall be 23 °C ± 2 °C directly after mixing.
NOTE 1 A suitable food mixer for which the mixing time has been determined is indicated in Annex C.
NOTE 2 Ensure that the paper cases maintain a uniform circular shape by carefully peeling cases from the
outside of the batch without distortion.
Weigh 28 g ± 0,5 g of the mixture into the centre of the paper cases and place them evenly on
the baking sheets. Bake immediately.
NOTE 3 The tests are carried out using corrected temperature control settings according to the differences
determined by the test of 8.2.
a) Baking on one level
Follow the operating instructions with respect to the heating function, temperature, shelf
position and preheating. If preheating is recommended, small cakes are placed in the oven
when the end of the preh
...
IEC 60350
Edition 2.0 2008-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 2
AMENDEMENT 2
Electric cooking ranges, hobs, ovens and grills for household use – Methods for
measuring performance
Cuisinières, foyers de cuisson, fours électriques et grils à usage domestique –
Méthodes de mesure de l'aptitude à la fonction
IEC 60350 A2:2008
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by
any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or
IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.
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publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.
IEC Central Office
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: inmail@iec.ch
Web: www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
ƒ Catalogue of IEC publications: www.iec.ch/searchpub
The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,…).
It also gives information on projects, withdrawn and replaced publications.
ƒ IEC Just Published: www.iec.ch/online_news/justpub
Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available
on-line and also by email.
ƒ Electropedia: www.electropedia.org
The world's leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions
in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
ƒ Customer Service Centre: www.iec.ch/webstore/custserv
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IEC 60350
Edition 2.0 2008-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 2
AMENDEMENT 2
Electric cooking ranges, hobs, ovens and grills for household use – Methods for
measuring performance
Cuisinières, foyers de cuisson, fours électriques et grils à usage domestique –
Méthodes de mesure de l'aptitude à la fonction
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
S
CODE PRIX
ICS 97.040.20 ISBN 2-8318-9797-1
– 2 – 60350 Amend. 2 © IEC:2008
FOREWORD
This amendment has been prepared by subcommittee 59K: Ovens and microwave ovens,
cooking ranges and similar appliances, of IEC technical committee 59: Performance of
household and similar electrical appliances.
This bilingual version, published in 2008-05, corresponds to the English version.
The text of this amendment is based on the following documents:
FDIS Report on voting
59K/161/FDIS 59K/163/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The French version of this amendment has not been voted upon.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the maintenance result date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
Page 7
2 Normative references
Add, to the existing list, the title of the following standard:
IEC 62301:2005, Household electrical appliances – Measurement of standby power
Page 13
5 General conditions for the measurements
5.1 Test room
Replace the existing second paragraph, added in Amendment 1, by the following:
For tests 8.1, 8.3 and 8.4.2, 23 °C ± 2 °C shall be maintained during the complete test.
60350 Amend. 2 © IEC:2008 – 3 –
5.3 Instrumentation
th
Add the following 8 dash at the end of the existing list added in Amendment 1:
– the scale for weighing the ingredients shall be accurate to ±0,1 g.
Page 15
6 Dimensions and mass
6.3 Internal dimensions of ovens
Replace the existing title and text of this subclause by the following:
6.3 Usable internal dimensions and usable volume of ovens
Removable items specified in the user instructions shall be removed before a measurement is
carried out.
The measurement of the usable oven volume is to be carried out at ambient temperature.
The height, width and depth of the usable volume in the cavity shall be measured in
accordance with 6.3.1 to 6.3.3. The measurement procedure is also shown in Figure 4a.
For verification purposes a gauge, as shown in Figure 4b, shall be used to determine all of the
three dimensions. The gauge shall be used without appreciable force.
Dimensions are stated in millimetres.
6.3.1 Usable height
The usable height is the maximum length of a cylinder with a diameter of 200 mm reaching
vertically from the centre of the cavity floor to the lowest point on the ceiling. The lowest point
of the ceiling can be constituted by a lamp, a heating element or similar object in the area of
the cylinder.
In the event that either the width or the depth of the cavity is less than 250 mm, the diameter
of the cylinder to be measured shall be reduced to 120 mm.
NOTE The centre of the cavity bottom is defined by the middle of the usable depth and the middle of the usable
width.
6.3.2 Usable width
The usable width is the maximum length of a cylinder with a diameter of 200 mm reaching
horizontally from the left-hand side wall to the right-hand side wall of the cavity.
In the event that either the height or the depth of the cavity is less than 250 mm, the diameter
of the cylinder to be measured shall be reduced to 120 mm.
NOTE The centre of the side wall of the cavity is defined by the middle of the usable depth and the middle of the
usable height.
6.3.3 Usable depth
The usable depth is the maximum length of a cylinder with a diameter of 200 mm reaching
horizontally from the centre of the rear wall to the inner face of the closed door.
– 4 – 60350 Amend. 2 © IEC:2008
In the event that either the width or the height of the cavity is less than 250 mm, the diameter
of the cylinder to be measured shall be reduced to 120 mm.
For measuring the usable depth, the gauge is placed on a support in such a way that the axis
lies horizontally in the centre of the cavity, the axis being extended slightly over the expected
usable depth. The door is closed carefully so that the gauge is compressed to give the usable
depth.
NOTE The centre of the rear wall of the cavity is defined by the middle of the usable height and the middle of the
usable width.
6.3.4 Usable volume
The usable volume is calculated from these three dimensions and is stated in litres rounded to
the next full litre.
Page 15
Add the following new subclause 6.4:
6.4 Overall internal dimensions and overall volume of ovens
Where the surfaces forming the boundaries of the cavity incorporate protrusions or
depressions, the planes used for measurement shall be those comprising the largest
percentages of the total areas of the surfaces. Holes in surfaces shall be disregarded when
calculating areas for this determination.
The following volumes or spaces shall be disregarded:
– those occupied by removable items specified by the manufacturer as not essential for the
operation of the appliance, such as shelves, racks or temperature probes;
– those occupied by heating elements;
– those occupied by minor irregularities in the cooking compartment walls, including covers
over temperature sensors and lamps;
– those occupied by the convection baffle;
– corner radii smaller than 50 mm at the intersections of the interior surfaces of the cooking
cavity.
Dimensions are stated in millimetres.
NOTE The overall dimensions of warming drawers may be measured using the same principles.
6.4.1 Overall height (H)
Overall height (H) is the maximum vertical distance in mm between the plane of the cooking
cavity bottom and the plane of the cavity ceiling.
6.4.2 Overall width (W)
Overall width (W) is the maximum horizontal distance in mm between the planes of the cavity
side walls.
6.4.3 Overall depth (D)
Overall depth (D) is the maximum horizontal distance in mm from the plane of the inside
surface of the door when closed to the plane of the rear cavity wall.
60350 Amend. 2 © IEC:2008 – 5 –
6.4.4 Overall volume of rectangular cavities
The overall volume is the total internal volume of the cavity in which cooking takes place,
expressed as the product of H, W and D determined as above, divided by 10 and rounded to
the nearest litre.
6.4.5 Overall volume of non-rectangular cavities
Non-rectangular cavities shall have the volume of any non-conforming section such as a
curved door or cavity wall determined by direct measurement and the application of
conventional geometrical calculations. The remainder of the cavity shall be treated as a
rectangular cavity and the individual volumes added together. The volume is expressed to the
nearest litre.
Renumber existing subclauses 6.4 to 6.10 as 6.5 to 6.11, respectively.
Page 31
8.4.2 Small cakes
Replace the entire existing subclause 8.4.2 by the following new subclause:
8.4.2 Small cakes
This test is intended to assess the vertical and horizontal heat distribution, especially for a
mixture that rises during cooking.
NOTE The test is carried out using the general conditions of measurements as stated in Clause 5.
8.4.2.1 Ingredients
The quantities of ingredients for 30 to 40 small cakes are indicated in Table 3. For a
reproducible result always prepare the same amount and discard any surplus mixture.
– 6 – 60350 Amend. 2 © IEC:2008
Table 3 – Ingredients
Quantities
Ingredients Remarks
g
Unsalted butter should be used. If unsalted butter is not
Butter, with a fat content of
available the salt content of butter should be subtracted from
340 ± 0,5
83 % ± 2 %
the salt added to the mixture.
White sugar, fine (grain size d95/d05: 90 % of the sugar crystals shall have a grain size of
340 ± 0,5
0,10 mm – 0,35 mm, d95/d05) 0,10 mm – 0,35 mm
Middle sized hen eggs (approximately 55 g ± 5 g) are beaten
and sieved until homogeneous, then weighed.
Eggs
300 ± 1
If frozen egg mixture is used, follow the instructions of
Clause C.1.
Wheat flour
Gluten: at least 24,0 %
without raising agent, unbleached
450 ± 1
Mineral content: maximum 0,5 %
(dry substance)
Phosphate baking powder (double acting) shall be used (not
baking soda).
Baking powder
15 ± 0,5
Salt 6 ± 0,1
NOTE 1 For reproducible results ingredients as defined in Annex C shall be used.
NOTE 2 The eggs are sieved to remove any chalazae.
NOTE 3 If more than 40 small cakes are required, two identical kitchen machines should be used simultaneously.
8.4.2.2 Paper cases
As the paper quality affects the rising height and spreading, only the paper cases specified in
Annex C shall be used for reproducible results. The paper cases are 48 mm in base diameter
and 29 mm in height. They are made of 70 g/m bleached greaseproof paper.
NOTE A supplier of paper cases is indicated in Annex C.
8.4.2.3 Quantity
The baking sheet shall be measured according to 6.4 and cover at least 80 % of the usable
width and 70 % of the usable depth of the cavity measured according to 6.3. If the supplied
baking sheet or the sheet recommended in the instructions fits these dimensions, this baking
sheet shall be used. If the supplied or recommended baking sheet does not fit the above
condition or no recommendation is given, t
...
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