SIST EN IEC 61591:2023/A1:2026
(Amendment)Cooking fume extractors - Methods for measuring performance
- Status
- Published
- Public Enquiry End Date
- 30-Jan-2026
- Publication Date
- 29-Oct-2026
- Technical Committee
- FGA - Consumer information related to household electrical appliances
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 08-Oct-2026
- Due Date
- 13-Dec-2026
- Completion Date
- 30-Oct-2026
SIST EN IEC 61591:2023/A1:2026 is the Slovenian adoption of Amendment 1 to IEC 61591:2023, published by IEC and adopted as EN IEC 61591:2023/prA1:2025. It updates the methods used to measure the performance of cooking fume extractors (CFEs). Manufacturers, test laboratories, and anyone comparing or checking CFE performance use it to apply the same test setup, standby definitions, and calculation methods.
What does SIST EN IEC 61591:2023/A1:2026 specify?
SIST EN IEC 61591:2023/A1:2026 specifies changes to the performance-measurement standard for cooking fume extractors. It amends the base document in the areas that affect test setup, low-power-mode measurement, lighting measurement, odour reduction, grease absorption, and uncertainty reporting.
The amendment is organized through the foreword, Clause 2 on normative references, Clause 3 on terms and definitions, clauses on installation and instrumentation, Clauses 8, 11, 12, 13 and 14 for measurement methods, Annex B for low-power-mode instructions, Annex C for uncertainty, and the bibliography.
| Annex | What it covers |
|---|---|
| Annex B | Step-by-step instruction for measuring low-power modes, including waiting times and networked standby handling |
| Annex C | Informative uncertainty of measurement for the methods in the document |
What are the key requirements of SIST EN IEC 61591:2023/A1:2026?
Clause 2 updates the reference handling for standby testing: IEC 62301 is now cited without a date, and the footnote to IEC 63474 is canceled. In practice, this means users must apply the current referenced edition where applicable when carrying out low-power and standby measurements.
Clause 3 changes the definition of standby mode. SIST EN IEC 61591:2023/A1:2026 now includes a protective function alongside reactivation and information or status display functions, so labs and manufacturers must decide carefully whether a product state is still standby or has moved into active operation.
Clause 6.2 adds a rule for the lowest level of the CFE: pull-out or swing-out mechanisms are not counted there. Clause 6.6 tightens measurement practice by defining the illuminance tolerance and the linear-dimension tolerance for cabinets, countertop, and CFE width. This matters because the physical installation affects airflow, lighting, and repeatability.
Clause 8.2.1 aligns standby measurements with IEC 62301 and IEC 63474, but adds extra timing rules. After each appliance interaction, the method requires at least 20 minutes before measurement starts, and Clause 8.2.4 says not to interact with the remote user interface during the waiting time or measurement. That keeps standby and networked standby readings from being distorted by recent user input.
Clause 11.3.3 replaces the calculation for fluid dynamic efficiency (FDE). Anyone reporting FDE must use the updated formula in the standard, because the result depends on the exact way airflow and pressure terms are combined.
Clauses 12.2 and 13.2 update the test geometry for lighting and odour-reduction measurements. Clause 12.2 changes how the measurement distance is determined for the illuminance setup, and Clause 13.2 revises how CFEs are installed for odour-reduction testing, including the placement of wall cabinets, island and ceiling range hoods, and the cookware temperature before the odour-reduction filter(s) are mounted. These setup details are critical because small changes in position or temperature can change the measured performance.
Clause 14.2 replaces the grease-absorption measuring setup, and Annex B revises the low-power-mode sequence so the waiting time is 20 minutes. Annex C then gives uncertainty guidance based on round-robin testing, which helps users judge how much measurement variation comes from the method itself.
What terms does SIST EN IEC 61591:2023/A1:2026 define?
- Cooking fume extractor (CFE) - The appliance type covered by the document, including range hoods and related extractor designs used over cooking equipment.
- Standby mode - A mains-connected state where only reactivation, information or status display, or protective functions can continue indefinitely.
- Reactivation function - A function that lets the appliance return to use, such as a control or sensor that detects user interaction.
- Protective function - A function that protects the appliance or user while in standby, such as an alarm when touch controls are overflowed with water.
- Networked standby - A standby condition measured with network connection considerations in place, covered by the low-power-mode procedure in Annex B.
- Fluid dynamic efficiency (FDE) - The performance measure calculated in Clause 11.3.3 from the specified airflow and pressure terms.
- Odour reduction factor - The performance measure used to express how well a CFE reduces odour under the test method in Clause 13.
- Grease absorption factor - The performance measure used to express grease capture under the test method in Clause 14.
Who uses SIST EN IEC 61591:2023/A1:2026?
SIST EN IEC 61591:2023/A1:2026 is used by CFE manufacturers, test laboratories, and product development teams that need comparable performance data. It is also relevant to quality managers, certification bodies, and buyers who review declared performance or test reports.
In practice, users apply it when setting up laboratory measurements, checking standby and networked standby behavior, calculating FDE, and reporting lighting, odour-reduction, and grease-absorption results for different CFE types.
What changed in SIST EN IEC 61591:2023/A1:2026 from the previous edition?
SIST EN IEC 61591:2023/A1:2026 amends IEC 61591:2023. The changes stated in the document are:
- IEC 62301 is changed from a dated to an undated normative reference.
- The footnote to IEC 63474 is canceled.
- The definition of standby mode is updated to include protective function.
- Clause 6.2 adds the rule for the lowest level of the CFE.
- Clause 6.6 updates measurement tolerances for illuminance and linear dimensions.
- Clause 8 updates standby and networked standby measurement timing and interaction rules.
- Clause 11 changes the FDE calculation.
- Clauses 12, 13, and 14 update measurement setups and figures.
- Annex B is revised for low-power-mode measurement.
- Annex C is added for uncertainty of measurement.
Which standards are used with SIST EN IEC 61591:2023/A1:2026?
- IEC 62301 - Used for standby-related measurement requirements and instrument conditions in Clause 8.
- IEC 63474 - Used together with IEC 62301 for standby and networked standby measurement requirements in Clause 8.
- IEC TR 63250 - Cited in the bibliography and used as the basis for the uncertainty approach described in Annex C.
- IEC 61591:2023 - The base standard that this amendment updates.
What does the SIST EN IEC 61591:2023/A1:2026 document contain?
The document contains targeted amendments to the measurement methods for CFEs, including revised text in the foreword, clauses, figures, and tables. It includes a replacement definition in Clause 3, updated setup rules in Clauses 6, 8, 12, 13, and 14, and a new calculation form for FDE in Clause 11.
It also contains a revised Table B.1 for low-power-mode testing and a new informative Annex C on uncertainty of measurement. Annex C links the methods to round-robin testing and explains how uncertainty was assessed for FDE, lighting effectiveness, odour reduction, and grease absorption.
Relations
- Effective Date
- 15-Sep-2026
- Effective Date
- 15-Sep-2026
- Effective Date
- 01-Dec-2026
Frequently Asked Questions
SIST EN IEC 61591:2023/A1:2026 is a amendment published by the Slovenian Institute for Standardization (SIST). Its full title is "Cooking fume extractors - Methods for measuring performance". This standard covers: Cooking fume extractors - Methods for measuring performance
Cooking fume extractors - Methods for measuring performance
SIST EN IEC 61591:2023/A1:2026 is classified under the following ICS (International Classification for Standards) categories: 97.040.20 - Cooking ranges, working tables, ovens and similar appliances. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN IEC 61591:2023/A1:2026 has the following relationships with other standards: It is inter standard links to SIST EN ISO 80000-1:2023, SIST EN IEC 62301:2026, SIST EN IEC 61591:2023. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN IEC 61591:2023/A1:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2026
Odvajalniki kuhinjskih hlapov - Metode za merjenje lastnosti - Dopolnilo A1
Cooking fume extractors - Methods for measuring performance
Absauger für Kochdünste - Verfahren zur Messung der Gebrauchseigenschaft
Extracteurs de fumée de cuisine - Méthodes de mesure de l'aptitude à la fonction
Ta slovenski standard je istoveten z: EN IEC 61591:2023/A1:2026
ICS:
97.040.20 Štedilniki, delovni pulti, Cooking ranges, working
pečice in podobni aparati tables, ovens and similar
appliances
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 61591:2023/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM October 2026
ICS 97.040.20
English Version
Cooking fume extractors - Methods for measuring performance
(IEC 61591:2023/AMD1:2026)
Extracteurs de fumée de cuisine - Méthodes de mesure de Absauger für Kochdünste - Verfahren zur Messung der
l'aptitude à la fonction Gebrauchseigenschaft
(IEC 61591:2023/AMD1:2026) (IEC 61591:2023/AMD1:2026)
This amendment A1 modifies the European Standard EN IEC 61591:2023; it was approved by CENELEC on 2026-09-29. 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.
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 amendment 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
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.
Ref. No. EN IEC 61591:2023/A1:2026 E
European foreword
The text of document 59K/424/CDV, future edition 3 of IEC 61591/AMD1, prepared by SC 59K
"Performance of household and similar electrical cooking appliances" of IEC/TC 59 "Performance of
household and similar electrical appliances" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN IEC 61591:2023/A1:2026.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2027-10-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2029-10-31
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61591:2023/AMD1:2026 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 60350-1:2023 NOTE Approved as EN IEC 60350-1:2023 (not modified)
IEC 60350-1:2023/AMD1:2025 NOTE Approved as EN IEC 60350-1:2023/A1:2025 (not modified)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Replace IEC 62301 with:
Publication Year Title EN/HD Year
IEC 62301 - Household electrical appliances - EN IEC 62301 -
Measurement of standby power
Delete the footnotes to IEC 63474 and EN IEC 63474, and the dash after the standards.
Replace ISO 80000-1:2009 with:
Publication Year Title EN/HD Year
ISO 80000-1 2022 Quantities and units - Part 1: General EN ISO 80000-1 2022
IEC 61591 ®
Edition 3.0 2026-08
INTERNATIONAL
STANDARD
AMENDMENT 1
Cooking fume extractors - Methods for measuring performance
ICS 97.040.20 ISBN 978-2-8327-1459-1
IEC 61591:2023-03/AMD1:2026-08(en)
IEC 61591:2023/AMD1:2026 © IEC 2026
IINTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Cooking fume extractors -
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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
Amendment 1 to IEC 61591:2023 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:
Draft Report on voting
59K/424/CDV 59K/432/RVC
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.
SIST EN IEC 615
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