IEC 60350-1:2016/AMD1:2021

Amendment 1 - Household electric cooking appliances - Part 1: Ranges, ovens, steam ovens and grills - Methods for measuring performance

Amendement 1 - Appareils de cuisson électrodomestiques - Partie 1: Cuisinières, fours, fours à vapeur et grils - Méthodes de mesure de l'aptitude à la fonction

General Information

• Status: Published
• Publication Date: 16-May-2021
• ICS: 97.040.20 - Cooking ranges, working tables, ovens and similar appliances
• Technical Committee: SC 59K - Performance of household and similar electrical cooking appliances
• Drafting Committee: MT 1 - TC 59/SC 59K/MT 1
• Current Stage: DELPUB - Deleted Publication
• Start Date: 20-Mar-2023
• Completion Date: 26-Oct-2025

Relations

• Amends: IEC 60350-1:2016 - Household electric cooking appliances - Part 1: Ranges, ovens, steam ovens and grills - Methods for measuring performance
• Effective Date: 05-Sep-2023
• Revised: IEC 60350-1:2023 - Household electric cooking appliances - Part 1: Ranges, ovens, steam ovens and grills - Methods for measuring performance
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60350-1 ®
Edition 2.0 2021-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Household electric cooking appliances –
Part 1: Ranges, ovens, steam ovens and grills – Methods for measuring
performance
Appareils de cuisson electrodomestiques –
Partie 1: Cuisinières, fours, fours à vapeur et grils – Méthodes de mesure de
l'aptitude à la fonction
IEC 60350-1:2016-04/AMD1:2021-05(en-fr)

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IEC 60350-1 ®
Edition 2.0 2021-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Household electric cooking appliances –

Part 1: Ranges, ovens, steam ovens and grills – Methods for measuring

performance
Appareils de cuisson electrodomestiques –

Partie 1: Cuisinières, fours, fours à vapeur et grils – Méthodes de mesure de

l'aptitude à la fonction
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.040.20 ISBN 978-2-8322-9786-5

– 2 – IEC 60350-1:2016/AMD1:2021
© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD ELECTRIC COOKING APPLIANCES –

Part 1: Ranges, ovens, steam ovens and grills –
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
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) Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
Amendment 1 to IEC 60350-1:2016 has been prepared by subcommittee 59K: Performance of
household and similar electrical cooking appliances, of IEC technical committee 59:
Performance of household and similar electrical appliances.
The text of this Amendment is based on the following documents:
FDIS Report on voting
59K/328/FDIS 59K/331/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.

© IEC 2021
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/standardsdev/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,
• replaced by a revised edition, or
• amended.
– 4 – IEC 60350-1:2016/AMD1:2021
© IEC 2021
1 Scope
Add the following note after the first paragraph:
NOTE 3 This document is also applicable to portable appliances with similar functionalities that were previously
covered by the withdrawn IEC 61817.
nd
In Note 2, delete the 2 bullet regarding the exclusion of portable appliances.

Replace 6.5 by the following new content:
6.5 Dimensions of a grill grid
6.5.1 Entire area
The entire area of the grill grid is determined by measuring the maximum width and the
maximum depth of the outer rods. This entire area of the grill grid is calculated and stated in
square centimetres, rounded to 10 cm .
6.5.2 Usable area
The usable width and usable depth of the grill grid are measured, by considering only the inner
grid, which is suitable for placing food. The usable area of the grill grid is calculated and stated
in square centimetres, rounded to 10 cm .

Key:
a is the maximum width of the grill grid
b is the maximum depth of the grill grid
c is the usable width of the grill grid
d is the usable depth of the grill grid
Figure 13 – Examples for determining the entire area and usable area of a grill grid

Table 2 – Ingredients
In the row dealing with eggs, replace "Clause C.1" with "Clause C.2".

© IEC 2021
Replace Clause 9 with the following new content:
9 Effective grilling area
9.1 Purpose
The purpose of this test is to determine the effective grilling area (E). The effective grilling area
is the part of the usable area of the grill grid (see 6.5) where white bread reaches a required
browning intensity during grilling.
9.2 Ingredients
The measurement is done with factory-made white bread made of wheat (e.g. Golden Toast ),
which is commonly available and suitable for toasting. The slices of bread shall have an edge
length of at least 80 mm and a thickness of 12 mm ± 1 mm. It shall be fine-pored.
If more than one loaf of bread is necessary, it shall be from the same batch. Therefore, the
bread shall be bought from the same supplier, at the same time and stored under same
conditions until needed for the measurements. It shall be used before the expiry date.
9.3 Preparation
Discard the first two and the last two slices of one package because these slices often have a
different texture. Remove the crust and cut the slices of bread to an edge length of 70 mm ±
1 mm.
Determine the usable area of the grill grid (A ) and state it in cm . Cover the usable area of the
u
grill grid completely (without gaps in between) with bread. For this, it can be necessary to trim
some slices. The minimum width and length of each slice shall not be less than 35 mm.
9.4 Procedure
Follow the operating instructions with respect to the heating function, temperature, shelf and
preheating. If preheating is recommended, the grill grid is placed in the oven when the end of
the preheating phase is indicated, for example by visual or acoustic signal, or after a
recommended pre-heating time.
If no instructions are given, the grill grid is placed in the highest possible level in the not-
preheated oven until it reaches the stop position of the rack, the door is closed, and the bread
is grilled with the highest possible setting.
During the grilling process, the door may be opened once for a maximum of 3 s to check the
browning, but without moving the grid.
Remove the grill grid when the bread is browned and burnt spots start to appear (≥ shade
number 15).
_____________
Golden Toast is the trade name of a product supplied by Lieken Brot und Backwaren GmbH. Golden Toast might
be commercially available through other suppliers after the date of publication of this standard. This information
is given for the convenience of the users of this document and does not constitute an endorsement by IEC of the
product named. Equivalent products may be used if they can be shown to lead to the same results.

– 6 – IEC 60350-1:2016/AMD1:2021
© IEC 2021
9.5 Assessment
9.5.1 General
Assess the browning of the bread within 1 h. Through the grilling process, the slices of bread
might bulge, which could increase the browning of the edges. Therefore, the top area of a slice
of toast is reduced alongside its outline as shown in Figure 14 by 2 mm to 3 mm from each side.
The assessable area (A ) is the top area after grilling considering the shrinkage of toast and
a
cutting the slices; see Figure 14.

Key:
a is the rejected part of each edge length; 2 mm ≤ a ≤ 3 mm
Figure 14 – Determining the assessable area of a slice of toast – Example
9.5.2 Criteria of validity
For a valid result, sufficient browning is required. This is ensured if the percentage of burned
parts of the assessable area in total is ≥ 3 % to ≤ 15 %. Burned areas (A ) are defined by
≥15
showing a shade number ≥ 15 in accordance with Annex B. To determine the shade numbers,
a digital evaluation system in accordance with 7.5.3.6.3 should be used.
If the result is invalid, repeat the test with adapted time.
9.5.3 Criteria of assessment
The relative effective grilling area E is calculated with the following formula:
r
A
8-14
E ×100
(17)
r
A − A
a ≥15
where
E is the relative effective grilling area, in %;
r
A is the assessable properly browned area with a shade number within the range of ≥ 8

8-14
and ≤ 14, in cm ;
A is the assessable burnt area with a shade number ≥ 15, in cm ;

≥15
A is the assessable area, in cm .

a
=
© IEC 2021
The absolute effective grilling area E in cm is calculated as follows:
a
A
8-14
E × A
(18)
au
A
a
Additionally, the following areas shall be noted:
– the not browned area N in cm :
A
<8
NA ×
(19)
u
A
a
– the burnt area B in cm :
A
≥15
B × A
(20)
u
A
a
where
A is the assessable properly browned area with a shade number within the range of ≥ 8

8-14
and ≤ 14, in cm ;
A is the assessable burnt area with a shade number ≥ 15, in cm ;

≥15
A is the assessable not browned area with a shade number <8;
<8
A is the assessable area, in cm ;

a
A is the usable area of the grill grid, in cm .
u
The final effective grilling area is calculated as an average of three valid tests.
Additionally, if the upper surface of the bread that is assessed is above or below half the usable
height measured in accordance with 6.2.2, this shall be reported.

=
=
=
– 8 – IEC 60350-1:2016/AMD1:2021
© IEC 2021
Annex A
(normative)
Colour measuring instrument
Replace the existing content of Annex A with the following new content:
The instrument (see Figure A.1) is in accordance with CIE 15 with the following specification:
– measuring geometry: diffuse, 8° vertical deviation;
– measuring aperture: diameter 8 mm to 16 mm;
– calibration standard: white, pressed barium sulfate (BaSO ), polytetrafluoroethylene (PTFE)
or equivalent;
– wavelength range: 400 nm ≤ λ ≤ 700 nm;
– wavelength interval: ≤ 10 nm;
– standard illuminant: CIE standard illuminant D65;
– standard observer: 10°;
– evaluation: CIEXYZ (CIE 1931) / CIELAB (CIE).

Key:
1 detector 4 integrating sphere
2 illumination source 5 specimen under measuring aperture
3 shutter
Figure A.1 – Colour measuring instrument

© IEC 2021
Annex C
(informative)
Addresses of suppliers
Replace Clause C.1 with the following new content:
C.1 General
The information given in Annex C is for the convenience of users of this document and does
not constitute an endorsement by the IEC of the products named. Equivalent products may be
used if they can be shown to lead to the same results.
Replace Clause C.3 with the following new content:
C.3 Food mixer
This clause describes an appropriate food mixer for the dough for the small cakes used in 7.5.3.
Mixing times and levels are determined for the Bosch MUM4 series, e.g. Bosch MUM4405 .
Specification of an appropriate food mixer:
– power rating (550 ± 50) W;
– revolutions per minute, see Table C.
...