oSIST prEN IEC 60335-2-64:2026/oprAA:2026

• Abstract:

  This standard deals with the safety of electrically operated commercial kitchen machines, their rated voltage being not more than 250 V for single phase appliances connected between one phase and neutral, and 480 V for other appliances including direct current (DC) supplied appliances and battery operated appliances. These appliances are not intended for household and similar purposes. They are used for commercial processing of food in areas not open to the public, for example in kitchens of restaurants, canteens, hospitals and in commercial enterprises such as bakeries and butcheries.

• Status: Not Published
• Public Enquiry End Date: 24-Sep-2026
• ICS: 97.040.10 - Kitchen furniture
• ICS: 97.040.50 - Small kitchen appliances
• Technical Committee: VGA - Safety of household and similar electrical appliances
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 09-Jul-2026
• Due Date: 26-Nov-2026
• Completion Date: 28-Sep-2026
• Directive: 2014/53/EU - Directive 2014/53/EU of The European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC
• Directive:

  ---

  2023/1230 - Regulation (EU) 2023/1230 of the European Parliament and of the Council of 14 June 2023 on machinery and repealing Directive 2006/42/EC of the European Parliament and of the Council and Council Directive 73/361/EEC (Text with EEA relevance)
• Mandate: M/536 - [C(2015)536] Standardisation request as regards radio equipment in support of Directive 2014/53/EU
• Mandate: M/605 - COMMISSION IMPLEMENTING DECISION of 20.1.2025 on a standardisation request to the European Committee for Standardization and to the European Committee for Electrotechnical Standardization as regards machinery and related products in support of Regulation (EU) 2023/1230 of the European Parliament and of the Council
• Ref Project: prEN IEC 60335-2-64:2026/prAA:2026 - Safety of household and similar electrical appliances - Part 2-64: Particular requirements for commercial electric kitchen machines

• Amends: oSIST prEN IEC 60335-2-64:2026 - Safety of household and similar electrical appliances - Part 2-64: Particular requirements for commercial electric kitchen machines
• Effective Date: 07-Apr-2025

oSIST prEN IEC 60335-2-64:2026/oprAA:2026 is the SIST draft amendment corresponding to prEN IEC 60335-2-64:2026/prAA:2026. It updates the safety standard for electrically operated commercial kitchen machines used for food processing in non-public commercial areas, such as restaurant kitchens, canteens, hospitals, bakeries and butcheries. For engineers, quality managers and buyers, it shows the added marking, instructions, heating, stability, construction and hazard-control requirements that apply to these machines.

What does oSIST prEN IEC 60335-2-64:2026/oprAA:2026 specify?

oSIST prEN IEC 60335-2-64:2026/oprAA:2026 specifies draft European amendments to the safety requirements for commercial electric kitchen machines. It is an amendment to prEN IEC 60335-2-64:2026 and is read together with prEN IEC 60335-2-64:2026/prA1:2026 and Part 1.

The document applies to electrically operated commercial kitchen machines within the voltage limits stated in the scope. It is written for commercial food processing equipment used in areas not open to the public, so the reader should treat it as a machine-safety document for professional food-service and food-processing environments.

The amendment is organized as changes to the Introduction and Clauses 1, 2, 3, 7, 11, 19, 20, 21, 22, 25 and 29, plus annex changes. European additions to IEC text are marked with the prefix “Z”, which helps readers separate the European modifications from the base standard.

Annex	What it covers
Annex ZA	Normative references to international publications with corresponding European publications
Annex ZE	Specific additional requirements for appliances with power driven moving parts
Annex ZAA	Food processing machinery standards used for stability, mechanical hazards, hygiene and acoustical noise
Annex ZZB	Relationship with Regulation (EU) 2023/1230
Annex ZZC	Relationship with Directive 2014/53/EU

What are the key requirements of oSIST prEN IEC 60335-2-64:2026/oprAA:2026?

The amendment focuses on safer use, clearer information, and better control of mechanical, thermal and operational hazards. In practice, it tightens what manufacturers must state, how appliances must behave under fault and interruption conditions, and how safety is checked.

Scope and hazard coverage

Clause 1 broadens the scope to include hygiene and acoustical noise, and it frames the hazards as reasonably foreseeable risks for all persons in and around the installation place or workplace. That matters because the standard is not only about the operator at the machine - it also addresses people nearby.

Clause 1 also adds exclusions for certain machines, including those that generate pressure above the stated limit, kitchen machines designed for induction heating, machinery for heating up solids, and machinery for processing cosmetics, chemicals and pharmaceutical products. This tells the reader when this Part 2-64 amendment is the wrong standard to use.

Marking and instructions

Clause 7 strengthens marking and instruction content. The appliance marking must identify the manufacturer, the model or type, the serial number if any, the production year, and the designation of the appliance.

The instructions must support safe use and include the substance of warnings for persons with reduced physical, sensory or mental capabilities unless supervised or instructed by a responsible person. They must also explain symbols used on the product, give precautions for installation, operation, cleaning and repair, and include warnings about slippery floors, foreseeable misuse, maintenance intervals and maximum empty weight.

Clause 7 also adds practical information for stability, transport, assembly, dismantling, servicing and accidents. For many users, this is the part that affects manuals, operator training and service procedures.

Heating and surface temperature rise

Clause 11 changes the heating test approach so temperature rises are monitored continuously and compared with the applicable limits. The amendment adds Table Z101, which sets limits for exposed surfaces by material and states where measurements are not taken.

For a user or test lab, this means the thermal design must be checked on the surfaces that people can touch in real use, and the test method must follow the amended measurement rules. The clause also allows the power input of appliances with more than one heating unit to be determined separately for each unit.

Abnormal operation and restart behaviour

Clause 19 tightens abnormal-operation checks on the heating contactor and on voltage fluctuation behaviour. The appliance must not create a hazard when supply conditions change, and it must either continue from the same operating point safely or require a manual restart.

This is important for commercial kitchens where interruptions or supply dips can happen during service. The appliance must not resume in a way that unexpectedly starts a dangerous function.

Stability, mechanical hazards and guards

Clause 20 links stability and mechanical hazards to the standards listed in Annex ZAA. If an appliance is not listed there, the text of Clause 20 of IEC 60335-2-64 applies together with a risk assessment for mechanical hazards.

Clause 22 adds construction rules for incorrect mounting, lifting arrangements, safe movement, fixed guards, movable guards, guard locking and energy isolation. In practice, this affects how the machine is assembled, cleaned, maintained and protected from access to dangerous moving parts.

Serviceability and safe isolation

Clause 7 and Clause 22 require repair and service information, including disconnection from the power source during service and part replacement. Where a plug is removed, the document requires a clear way for the operator to verify that it remains removed, or another locking isolation method.

That matters for maintenance teams because the standard expects a controlled isolation method, not just an assumption that a plug has been pulled.

What terms does oSIST prEN IEC 60335-2-64:2026/oprAA:2026 define?

Guard - a part of the appliance designed to protect by creating a physical barrier.

Operator - a person who installs, operates, adjusts, maintains, cleans, repairs or moves the appliance.

Workstation - the place where the operator attends the appliance to operate, adjust or control it.

Appliance - in this scope, the term is used with the same meaning as equipment, and it also includes machine where applicable.

Radio appliance - in this scope, the term has the same meaning as radio equipment.

Who uses oSIST prEN IEC 60335-2-64:2026/oprAA:2026?

This amendment is used by manufacturers of commercial electric kitchen machines, their design and safety engineers, and conformity assessment teams. It is also relevant to test laboratories, quality managers, importers, and buyers who specify safety, marking and instruction content for commercial kitchen equipment.

The likely end-use environments are kitchens and food-processing workplaces in restaurants, canteens, hospitals, bakeries and butcheries. Service personnel and maintenance contractors also use it because the document sets expectations for servicing, isolation, repairs, guards and safe handling.

What changed in oSIST prEN IEC 60335-2-64:2026/oprAA:2026 from the previous edition?

The foreword says this amendment introduces requirements and instructions for children, vulnerable people and domestic animals, requirements for power driven moving parts, mechanical test set-up clarifications, hygienic requirements and ergonomic requirements. It also modifies the Introduction and Clauses 1, 2, 3, 7, 11, 19, 20, 21, 22, 25 and 29, and updates the annexes.

Which standards are used with oSIST prEN IEC 60335-2-64:2026/oprAA:2026?

Standard	What it contributes
EN IEC 60335-1:2023 + A11:2023 + prAB:2026	Part 1 general safety requirements that this amendment supplements
prEN IEC 60335-2-64:2026	The base Part 2-64 document being modified
prEN IEC 60335-2-64:2026/prA1:2026	Companion amendment read together with this document
IEC 60584-1	Thermocouple EMF specifications and tolerances for temperature measurement
ISO 185	Classification of grey cast irons
ISO 898-1 and ISO 3506-1/-2/-3/-4	Mechanical properties for carbon steel, alloy steel and corrosion-resistant fasteners
Annex ZAA food-processing machinery standards	Machine-specific stability, mechanical hazards, hygiene and acoustical noise requirements for listed food-processing machines

What does the oSIST prEN IEC 60335-2-64:2026/oprAA:2026 document contain?

The document contains clause-by-clause modifications to the base standard, including revised scope text, new terminology, marking and instruction requirements, heating test updates, abnormal-operation changes, and new construction rules. It also adds a temperature-rise table, revised test and inspection language, and specific provisions for guards, lifting arrangements and energy isolation.

Its annexes provide the supporting structure for use in practice: Annex ZA lists referenced publications, Annex ZE covers power driven moving parts, Annex ZAA identifies food-processing machinery standards for stability, mechanical hazards, hygiene and acoustical noise, and Annex ZZB and Annex ZZC map the text to EU machinery and radio-equipment legislation.

SLOVENSKI STANDARD
01-september-2026
Varnost gospodinjskih in podobnih električnih aparatov - 2-64. del: Posebne
zahteve za komercialne električne kuhinjske stroje - Dopolnilo AA
Safety of household and similar electrical appliances - Part 2-64: Particular requirements
for commercial electric kitchen machines
Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Teil 2-64:
Besondere Anforderungen für elektrische Küchenmaschinen für den gewerblichen
Gebrauch
Appareils électrodomestiques et analogues - Sécurité - Partie 2-64: Exigences
particulières pour les machines de cuisine électriques à usage commercial
Ta slovenski standard je istoveten z: prEN IEC 60335-2-64:2026/prAA:2026
ICS:
97.040.50 Majhni gospodinjski aparati Small kitchen appliances
oSIST prEN IEC 60335-2- en
64:2026/oprAA:2026
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD DRAFT
prEN IEC 60335-2-64:2026
NORME EUROPÉENNE
EUROPÄISCHE NORM
prAA
July 2026
ICS 97.040.10 -
English Version
Safety of household and similar electrical appliances - Part 2-64:
Particular requirements for commercial electric kitchen machines
Appareils électrodomestiques et analogues - Sécurité - Sicherheit elektrischer Geräte für den Hausgebrauch und
Partie 2-64: Exigences particulières pour les machines de ähnliche Zwecke - Teil 2-64: Besondere Anforderungen für
cuisine électriques à usage commercial elektrische Küchenmaschinen für den gewerblichen
Gebrauch
This draft amendment prAA, if approved, will modify the European Standard prEN IEC 60335-2-64:2026; it is submitted to CENELEC
members for enquiry.
Deadline for CENELEC: 2026-09-25.

It has been drawn up by CLC/TC 61.

If this draft becomes an amendment, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment the status of a national standard without any alteration.

This draft amendment was established by CENELEC 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 81686 Ref. No. prEN IEC 60335-2-64:2026/prAA:2026 E

Contents Page
13 European foreword . 3
14 1 Modification to the Introduction . 4
15 2 Modification to Clause 1, “Scope” . 4
16 3 Modification to Clause 2, “Normative references” . 5
17 4 Modification to Clause 3, “Terms and definitions” . 5
18 5 Modification to Clause 7, “Marking and instructions” . 5
19 6 Modification to Clause 11, “Heating”. 8
20 7 Modification to Clause 19, “Abnormal operation” . 8
21 8 Modification to Clause 20, “Stability and mechanical hazards” . 9
22 9 Modification to Clause 21, “Mechanical strength” . 9
23 10 Modification to Clause 22, “Construction” . 9
24 11 Modification to Clause 25, “Supply connection and external flexible cords” . 10
25 12 Modification to Clause 29, “Clearances, creepage distances and solid insulation” . 10
26 13 Modification to the annexes . 10
27 European foreword
28 This document (prEN IEC 60335-2-64:2026/prAA:2026) has been prepared by CLC/TC 61 “Safety of household
29 and similar electrical appliances”.
30 This document is currently submitted to the Enquiry.
31 The following dates are proposed:
• latest date by which the existence of this (doa) dav + 6 months
document has to be announced at national level
• latest date by which this document has to be (dop) dav + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dav + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)
32 This document will modify prEN IEC 60335-2-64:2026 and all its amendments and corrigenda (if any).
33 prEN IEC 60335-2-64:2026/prAA:2026 includes the following significant technical modifications:
34 — introduce requirements and instruction for children, vulnerable people and domestic animals;
35 — introduce requirements for power driven moving parts
36 — introduce mechanical test set-up clarifications;
37 — introduce the hygienic requirements;
38 — introduce ergonomic requirements.
39 This document is read in conjunction with prEN IEC 60335-2-64:2026 and
40 prEN IEC 60335-2-64:2026/prA1:2026.
41 The numbering system for European clauses, subclauses, notes, tables, figures and annexes that are additional
42 to those in the IEC standard are prefixed with the letter “Z”.
43 This document has been prepared under a standardization request addressed to CENELEC by the European
44 Commission. The Standing Committee of the EFTA State subsequently approves these requests for its Member
45 States.
46 For the relationship with EU legislation, see informative Annexes ZZB and ZZC, which are an integral part of
47 this document.
48 Secretary’s note: The text contained in the Secretary’s notes will be removed from the standard before
49 publication, as it is provided solely to inform stakeholders about the reasons for introducing the European
50 common modifications.
51 Secretary’s Note: The above sentence in lines 48/49 will be removed when the BT approves the removal of
52 the link to legislation.
53 1 Modification to the Introduction
54 Delete the words “manufacturer's”.
55 2 Modification to Clause 1, “Scope”
56 Replace the paragraph starting with “Examples of kitchen machines …” including al bullet points with the
57 following:
58 “This document also deals with hygiene and acoustical noise (see Annex ZAA).”
59 Replace the paragraph starting with “As far as is practicable…”, with the following:
60 “This document deals with the reasonably foreseeable hazards of intended use presented by appliances, which
61 are encountered by all persons in and around the installation place or workplace.”
62 Convert the paragraph starting with “Attention is drawn to the…” into Note Z101.
63 Add at the last paragraph the following bullet points
64 “:
65 — machinery generating in any part a pressure exceeding 50 kPa,
66 — kitchen machines designed for induction heating,
67 — heating up solids,
68 — machinery for processing cosmetics, chemicals and pharmaceutical products.”
69 Addition:
70 With European Amendment A11, EN 60335-2-64:2000+A1:2002+Cor1:2002 are superseded.
71 This European Amendment A11 supplements or modifies the corresponding clauses of the standards below:
72 — EN IEC 60335-1:2023 (Part 1)
73 — EN IEC 60335-2-64:2026 (Part 2)
74 For the purpose of this document, the term “appliance” includes the term “machine” where applicable.
75 Additional requirements for appliances with power driven moving parts are given in Annex ZE.
76 This document does not deal with any specific requirements on noise emitted from these appliances the
77 generated noise is not considered to be a relevant hazard. Thus, the emission sound pressure level LpA is
78 considered to be LpA ≤ 70 dB(A).
79 This document contains requirements for appliances with radio function, remote communication, and remote
80 operation.
81 For the scope of this document, the term “radio appliance” is used with the same meaning of “radio equipment”.
82 For the scope of this document, the term “appliance” is used with the same meaning of “equipment”.
83 Compliance with this Part 2 when used together with the Part 1 provides one means of conformity with the
84 safety objectives as listed in Table ZZB.1 and Table ZZC.1.”

As impacted by EN IEC 60335-1:2023/A11:2023 and EN IEC 60335-1:2023/prAB:2026.
As impacted by EN IEC 60335-2-64:2026/prA1:2026.
85 3 Modification to Clause 2, “Normative references”
86 Addition:
87 EN IEC 60335-1:2023, Household and similar electrical appliances - Safety - Part 1: General requirements
88 4 Modification to Clause 3, “Terms and definitions”
89 3.6.102 Delete
90 3.6.103 Delete
91 3.6.104 Delete
92 3.6.105 Delete
93 3.6.106 Delete
94 Add the following new term entries:
95 “
96 3.Z101
97 guard
98 part of the appliance specifically designed to provide protection by means of a physical barrier
99 3.Z102
100 operator
101 person or persons installing, operating, adjusting, maintaining, cleaning, repairing or moving appliances
102 3.Z103
103 workstation
104 place where the operator is in attendance to operate, or to adjust, or to control the appliance”
105 5 Modification to Clause 7, “Marking and instructions”
106 7.1 Modification:
107 Replace the fourth and fifth list items with the following:
108 “
109 — business name and full address of the manufacturer and, where applicable, their authorized representative;
110 — model or type reference, serial number, if any, and production year;
111 NOTE Z101 Production year is the year when the production process is completed. The production year can be a part of
112 the serial number.”
113 Add the following list item and note:
114 “
115 — designation of the appliance.
116 The designation may be a combination of letters and/or numbers and shall enable to identify the machine as
117 specified in the instructions.”

As impacted by EN IEC 60335-1:2023/A11:2023 and EN IEC 60335-1:2023/prAB:2026.
118 7.12 Modification
119 Replace the first sentence in the requirement with the following:
120 “Instructions shall be provided with the appliance so that the appliance can be used safely.”
121 7.12 Modification
122 Replace the fourth paragraph starting with “This appliance is not intended for use by persons (including
123 children)…” with the following:
124 “The instructions shall state the substance of the following:
125 — This appliance is not intended for use by persons with reduced physical, sensory or mental capabilities, or
126 lack of experience and knowledge, unless they have been given supervision or instruction concerning use
127 of the appliance by a person responsible for their safety.”
128 In the eleventh paragraph of the addition starting with “if symbol…”, add after “IEC 60417-5021 (2002-10)” the
129 following: “, ISO 7000-0434A (2004-01)”.
130 Add the following:
131 “The front cover of the instructions shall include the substance of the following:
132 CAUTION: Read the instructions before using the appliance
133 This wording may be replaced by symbols ISO 7000-0434A (2004-01) and ISO 7000-0790 (2016-08).
134 In the addition replace the sentence starting with “If the manufacturer.” with the following:
135 “If the intended use of the appliance shall be limited to less than the above, this shall be clearly stated in the
136 instructions.”
137 Add the following:
138 “If any of symbols IEC 60417-5021 (2002-10), ISO 7000-0434A (2004-01) or ISO 7000-0790 (2016-08) are
139 used on the product or in the instructions, their meaning shall be explained.
140 The instructions shall contain at least the following information:
141 — the business name and full address of the manufacturer and, where applicable, his authorized
142 representative;
143 — model or type reference of the appliance as marked on the appliance itself, except for the serial number;
144 — the designation of the machine together with its explanation in case it is given by a combination of letters
145 and/or numbers;
146 — the general description of the appliance, when needed due to the complexity of the appliance;
147 — specific precautions if required during installation, operation, adjusting, user maintenance, cleaning,
148 repairing or moving;
149 — when needed drawings, diagrams, descriptions and explanations necessary for the safe use and user
150 maintenance of the appliance;
151 — the possible reasonably foreseeable misuse and, whenever relevant, a warning against the effects it may
152 have on the safe use of the appliance;
153 — the designation of the appliance together with its explanation in case it is given by a combination of letters
154 and/or numbers;
155 — the intended use of the appliance;
156 — the meaning of the symbols used on the machine and in the instructions;
157 — instructions regarding user maintenance and operation of the appliance and, if necessary, instructions for
158 the training of operators;
159 — a warning concerning possible slippery floor adjacent to the appliance;
160 — the maximum weight of the empty appliance;
161 — the meaning of a level mark if used on the appliance.
162 The instructions needed for maintenance/service to be done by specialized personnel, mandated by the
163 manufacturer or the authorized representative may be supplied in only one Community language which the
164 specialized personnel understand.
165 The instructions shall indicate the type and frequency of inspections and maintenance required for safe
166 operation including the preventive maintenance measures.”
167 Add the following subclauses:
168 “
169 7.12.Z101 Information shall be given:
170 — on use, transportation, assembly, dismantling when out of service, testing or foreseeable breakdowns, if
171 these operations have consequences on stability of the appliance in order to avoid overturning, falling or
172 uncontrolled movements of the appliance or of its component parts;
173 — on how to maintain adequate mechanical stability when in use, during transportation, assembly,
174 dismantling, scrapping and any other action involving the appliance;
175 — on the protective measures to be taken by the user, including, where appropriate, the personal protective
176 equipment to be provided;
177 — on the operating method to be followed in the event of accident or breakdown; if a blockage is likely to
178 occur the operating method to safely unblock the appliance;
179 — on the specifications on the spare parts to be used, when these affect the health and safety of the operator;
180 — on airborne noise emissions, determined and declared in accordance with the relevant standards listed in
181 Annex ZAA.
182 This includes:
183 — the A-weighted emission sound pressure level at workstations, where this exceeds 70 dB(A), where this
184 level does not exceed 70 dB(A), this fact shall be indicated,
185 — the A-weighted sound power level emitted by the machinery, where the A-weighted emission sound
186 pressure level at workstations exceeds 80 dB(A).”
187 7.12.1 Replace the paragraph starting with “In addition, for appliances incorporating…” with the following:
188 “The instructions shall state that any repairs shall be carried out by competent persons.”
189 Add the following:
190 “The instructions for table-top appliances shall state that a support is needed so that the working height of the
191 appliance is between 695 mm and 980 mm.
192 7.12.Z102 The instructions shall include a warning that the appliance shall be disconnected from its power
193 source during service and when replacing parts and, if that the removal of the plug is foreseen, it shall be clearly
194 indicated that the removal of the plug has to be such that an operator can check from any of the points to which
195 he has access that the plug remains removed.
196 If this is not possible, due to the construction of the appliance or its installation, a disconnection with a locking
197 system in the isolated position shall be provided.”
198 6 Modification to Clause 11, “Heating”
199 11.2 Modification:
200 Delete “manufacturer’s”.
201 11.7 Modification:
202 Replace the first paragraph with the following:
203 “During the test, the temperature rises are monitored continuously and shall not exceed the values shown in
204 Table 3 and Table Z101”.
205 In Table 3 delete the row “External enclosure of motor-operated appliances, except handles held in normal use”
206 and the corresponding footnotes.
207 Add the following Table Z101:
208 “
209 Table Z101 — Maximum normal temperature rises
a b
Surface Temperature rise of external accessible surfaces
K
Bare metal 50
b
Coated metal 60
Glass and ceramic 65
c
Plastic and plastic coating > 0,4 mm 75
Temperature rises are not measured on:
—  the underside of appliances intended to be used on a working surface or floor;
—  the rear surface of appliances.
...