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1. About IEC publications

A technical corrigendum is issued to correct either:

  • A technical error or ambiguity in an International Standard, a Technical Specification, a Publicly Available Specification or a Technical Report, inadvertently introduced either in drafting or in printing and which could lead to incorrect or unsafe application of the publication, or
  • Information that has become outdated since publication, provided that the modification has no effect on the technical normative elements of the standard.

Once published corrigenda are immediately integrated in the corresponding publication. They are also available separately and can be freely downloaded here.

Electropedia contains all the terms and definitions in the International Electrotechnical Vocabulary or IEV which is published also as a set of publications in the IEC 60050 series that can be ordered separately from the IEC Webstore.

Electropedia is the world's most comprehensive online electrical and electronic terminology database containing more than 20 000 terms and definitions in English and French organized by subject area, with equivalent terms in various other languages: Arabic, Chinese, Czech, Finnish, German, Italian, Japanese, Norwegian (Bokmål and Nynorsk), Polish, Portuguese, Russian, Serbian, Slovenian, Spanish and Swedish (coverage varies by subject area).

An interpretation sheet provides a quick formal explanation to an urgent request by a user of a standard (testing laboratory, manufacturer, etc.). Changes of requirements or test procedures in a standard by means of an interpretation sheet shall be avoided. It is recognized that it is sometimes difficult to define what is a "matter of interpretation" for a given standard.

For more information please refer to ISO/IEC Directives.

All the Interpretation sheets can be freely downloaded here.

IEC Publications are generally available in paper and PDF electronic format.

For publications in PDF format no DRM are applied; printing, content copying and commenting are allowed. However document changes are not allowed.

On our Webstore, you can find out the document format available for publications of your choice.

The following format symbols are used on our Webstore:

PDF (Adobe Acrobat Reader)
CD / DVD / Blu-ray ™
Ebooks (PDF, ePub)
Word (only for TRF)

For customers wishing to purchase a large quantity of standards we can deliver on CD.


An IEC reference number for a publication is composed of a header plus three elements: 1) the publication number, 2) the part number and 3) the section number.

As from 1997 all new IEC publications and parts, as well as new editions, revisions and amendments are being issued with a designation in the 60000 series, however this does not affect the content. It is now necessary to add 60000 to the existing base number.

Example: IEC 529 is now referenced as IEC 60529.

The 80000 series is allocated to multipart standards jointly developed by IEC and ISO in some exceptional cases, in which some parts are published by ISO and others by IEC. The use of the ISO/IEC prefix is strictly limited to ISO/IEC JTC1 publications as well as some ISO/IEC guides.

IEC publications are bilingual (English/French) or monolingual, some versions are derived from the bilingual publication by deleting the French-language or English-language pages as appropriate. Most publications are also available in Spanish and some in Russian.

The following letter codes denote the available language(s) for each publication:

EN-FR bilingual (English/French)
EN English only
FR French only
ES Spanish
RU Russian
EN-FR-RU trilingual (English/French/Russian)

You will find below categories of technical questions and who to contact:

Technical information
Please contact the secretary of the IEC National Committee in your country.

Please contact the secretary of the IEC National Committee in your country, or check here to see if there is an interpretation sheet for the publication you are looking for.

Error in the publication
Please contact us.

If your questions do not fall into any of these categories, please contact us.

The development process for IEC standards follows defined stages. The stage codes used by IEC are based on the international harmonized stage code system.

You can find the list of stage codes at the following address.

Systems Reference Deliverable (SRD) is a deliverable produced by Systems Committees only. A SRD is a guidance document on the use and application of specific standards in the SyC domain. A SRD can be a normative document. SyCs may produce multiple SRDs that address, but are not limited to:

  • Standards Mapping
  • Roadmap(s)
  • Databases
  • Architectures
  • Profiles
  • Interfaces and transfer functions across domain
  • Use Cases
  • Domain Definition
  • The International Electrotechnical Commission is the leading global organization that publishes consensus-based international standards and manages conformity assessment systems for electric and electronic products, systems and services, collectively known as electrotechnology.

    The IEC develops different types of publications:

    For more information click here.

    For IEC Conformity Assessment we have:

    The IEC publishes consolidated versions of its publications with all the amendments included in the base document.

    Edition 1.0 base document without any amendments
    Edition 1.1 base 1.0 edition consolidated with one amendment
    Edition 1.2 base 1.0 edition consolidated with two amendments
    Edition 2.0 second edition of a base document.
    This may include new information combined as well as amendments from edition 1.x.
    Edition 2.1 second edition consolidated with one amendment

    Since May 2010, additions and deletions are displayed in red, with deletions being struck through in all new consolidated versions. Since May 2012, the release of the consolidated version is strictly synchronized with that of the amendment.

    I have edition 1.2, do I have to buy amendments?

    There is no need to buy the amendments because they are already included in the consolidated version.
    If you have the base edition (1.0, 2.0, 3.0,…) of a standard, you may purchase amendments separately.

    A Redline version contains both the current IEC standard and a Redline version of the document which shows changes from the previous edition marked in colour. With the Redline you can quickly spot changed sections and tell specifically what has been changed from the previous edition, saving time and avoiding confusion.

    The development of a Redline version is not systematic. Criteria are the popularity of the Publication and the clear structure of the changes. If the changes are too much interwoven into the content, a Redline version may be unreadable and thus, lose the benefit of a clear and quick identification of the changes.

    Commented version is the only product where the consensus-based content of a publication is enriched with technical information. It is made of a redline version with highlighted areas where technical committee experts provide the reasons and rationale of the most relevant changes. The summary of comments is also provided at the end of the document.

    With commented versions, users can better understand the rationale for changes made to the newest edition of the standard. Comments include an explanation for the changes as well as information on the impact of these changes on the application and usability of the standard.

    Commented versions are an enhanced version of the traditional IEC Redline Version (RLV) which highlights the changes between the previous edition and the new edition.

      This value-added product consist of a package, which includes both the new edition of the publication, and the commented redline version.

      Click here for a complete list.

    Some standards are required to be read in conjunction with another standard, i.e. reference document.  Recognizing that it may be difficult to consult both standards simultaneously, we have now made available extended versions. The Extended version (EXV) of an official IEC Standard provides the user with a comprehensive content consisting of the standard and its reference document, with replacements or additions being highlighted in the content of the EXV. 

    The EXV allow your experience with IEC Standards to be seamless and efficient as you consult key information and content in a single, easy to use document.

    We currently have the following extended versions available.

    We offer different subscriptions tailored to your needs:
    - Thematic collection
    - Personalized selection of Technical Committees
    - Personalized selection of IEC publications

    With a subscription to the IEC Products & Services Portal you will always have access to up to date content.

    Main features:
    - Powerful search engine
    - Free access to complete collection previews
    - Personalized bookmarks
    - Favourites function
    - Comments creation and management

    Ordering process
    Send to the IEC customer service which collection you would like to subscribe to.
    Mention the number of sites and simultaneous users accessing the collection.
    You will then receive a quote and licence agreement for a one-year subscription.
    Once we receive your payment the access will be granted.

    A Test Report Form (TRF) is a document prepared by a National Certification Body (NCB) allowing a test laboratory to record the evidences and the results of the tests and analysis made on a product. Its primary intent is to support the emission of a Certification Body Certificate.

    Made available for all the community, a TRF represents the “State of the Art”. All the required information to document a test or analysis are included in the TRF and its use is ease by a common structure fully aligned with the structure of the IEC or ISO standard.

    What is the added value for customers ?
    “Save time and money and promote your know-how by using TRF” !
    When buying a TRF, you don’t need to “re-invent the wheel”. Developed by the Certifications Bodies engaged in the IECEE, they represent the “State of the Art”. All the required information to document a test or analysis are included in the TRF and its use is ease by a common structure fully aligned with the structure of the IEC or ISO standard. No need to spend days to create your own forms, with the risk to forget something. These TRF will save your time and your money.

    Why they are only in English version ?
    As its main intent is to evidence of compliance to the customers, certification body, regulators and all other stakeholders on the market, it has to be understood by all. It’s why the TRF are issued only in English language, which is the most common language used by technical people.

    How are these documents updated ?
    The issuance and the update of a given TRF is done and managed by one dedicated Certification Body of the IECEE, following the guidance provided in the document OD-2020.

    Does it exist a TRF for each IEC standard ?
    Close to 2'000 TRF are available, they focus mainly on electrical safety standards.

    How the customers can use a TRF ?
    The publication may be reproduced in whole or in part for non-commercial purposes as long as the IECEE is acknowledged as copyright owner and source of the material. IECEE takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context.

    The IEC Secretariat has introduced “Series packages” for a limited selection of bestselling standards. Each package includes all parts of the series and amendments where needed.

    A 15% discount applies on the catalogue price of these packages, as well as on any future updates.

    You will find here the list of series available.

    2. Search and find publications

    If you purchase IEC publication from our Webstore, you will automatically receive an email alert service “Standards Watch” that gives you updated information as and when its amendment(s) or new edition(s) become available.

    If, however, you obtained the standard from other institutions, you may wish to subscribe to our free e-mail service Just Published which is sent out once a month and lists titles of all newly published standards.
    To subscribe please click here.

    Or, you can send us a list of IEC standards and we will send you a quote.

    Although IEC standards can be adopted by our members or other organisations (EN, IEEE, DIN, UL,...), no cross reference index is available with us. Please contact the relevant organisation or the IEC National Committee in your country.

    Our Webstore is an ideal tool for you to find the standard you want. It offers several search possibilities (by text, by reference, by TC/SC, ICS code and publication date).

    We also offer you a “preview” service to view the cover page, table of contents, foreword, scope and normative references of a standard before purchase. After having obtained search results, please click on the preview icon.

    Contact us if you do not find the publication you need.

    Several publications are available in database format. You will find the complete list here

    For some of them the access is on an annual subscription basis and is by means of a username and password.

    IEC 60061 - Lamp caps and holders together with gauges for the control of interchangeability and safety
    Contains the recommendations of the IEC in regard to lamp caps and holders in general use, together with relevant gauges, with the object of securing international interchangeability. Some 900 standard sheets in PDF format can be accessed from the various indexes and through the search facility.

    IEC 60191-2 - Mechanical standardization of semiconductor devices - Part 2: Dimensions
    Contains more than 220 standard sheets covering device outline drawings and the types of semiconductor devices generally mounted in the packages. The drawings represent the unification of national standards.

    IEC 60417 and ISO 7000 - Graphical symbols for use on equipment
    Contains more than 5 000 graphical symbols used to identify equipment or a part of equipment, indicate functional states, designate connections, provide information on packaging or provide instruction for the operation of the equipment. Various search and navigation facilities allow for easy retrieval of graphical symbols.

    IEC 60617 - Graphical symbols for diagrams
    Contains 1 900 graphical symbols for use in electrotechnical diagrams. The database also provides classified views (by shape, function and application) and a search facility. Available in English, French and Japanese.

    For IEC 60417 / ISO 7000 and IEC 60617 individual symbols may be purchased at CHF 30.- per symbol. Simply contact us mentioning which symbols you wish to buy and we will send you a quote.

    The search results mention a Stability date for some publications. The contents of the publications will remain unchanged up to the Stability date. At this date, the publication will be either reconfirmed, withdrawn, replaced by a revised edition or amended. If there is a revision or amendment on-going then this is mentioned under the publication in the “Work in progress” tab, if you don't see this tab it means that there is no project under development.

    Stability periods are based on an assessment of the maturity of the technology and future, foreseen changes due to development or maintenance of associated publications. Typically stability periods are between 3 and 12 years. If a committee needs to process an amendment or revision before the review date, it may decide to advance the review date and modify the stability date accordingly.

    3. Pre-ordering information

    Switzerland and Liechtenstein:
    - paper 2.5%
    - CD, electronic PDF, networking and database 2.5%
    - TRF (Test report form) 7.7%

    As of 01.01.2024
    Switzerland and Liechtenstein:
    - paper 2.6%
    - CD, electronic PDF, networking and database 2.6%
    - TRF (Test report form) 8.1%

    Other countries: 0%

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    Conditions of Copyright for IEC publications

    All IEC publications are protected by the publisher's copyright and no part of any IEC publication can be reproduced or utilized in any form or by any means (graphic, electronic or mechanical including photocopy and recording, recording taping or information and retrieval systems) without the written permission of the publisher. Published by International Electrotechnical Commission (IEC), 3 rue de Varembé, 1211 Geneva 20, Switzerland.

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    For example IEC 61508-1 has a price of CHF 310.-.
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    Above 20 workstations Please contact the Customer Service Centre

    For example IEC 61508-1 has a price of CHF 310.-.
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    There are currently more than 11'000 publications making up the IEC entire collection. If you wish to obtain all these publications, please write to us.

    We also offer a subscription service allowing to access our publications on the IEC Products & Services Portal. The annual fee will depend on the number of users and sites. Contact us to receive a quote.

    Do you have thematic collections I could subscribe to ?

    We offer different thematic collections, grouping publications from relevant Technical Committees:

    Compilation Technical Committees
    IEC A&D Essential 2, 18, 31, 48, 55, 57, 61, 65, 66, 70, 77, 104, 107, 108
    IEC A&D Plus 2, 14, 17, 18, 31, 42, 47, 48, 55, 57, 59, 61, 64, 65, 66, 70, 72, 77, 82, 86, 91, 104, 107, 108, ACOS, CIS
    IEC Air & Maritime safety 18, 21, 31, 80, 97, 107
    IEC Appliances 2, 3, 20, 23, 48, 59, 61, 64, 70, 72, 104, 110, 111, 116, ACOS, CIS
    IEC Appliances Essential 2, 23, 27, 34, 59, 61, 64, 70, 72, 81, 89, 104, 108, 110, 116, ACOS, CIS
    IEC Appliances Plus 2, 20, 21, 23, 27, 29, 34, 48, 59, 61, 62, 64, 70, 72, 76, 77, 81, 86, 89, 100, 102, 104, 106, 108, 110, 111, 116, ACOS, CIS
    IEC Audio, video and multimedia 20, 23, 29, 34, 48, 49, 72, 86, 87, 100, 102, 103, 104, 108, 110, 111, 119
    IEC Audio, video and multimedia Essential 20, 23, 70, 72, 77, 78, 86, 100, 102, 103, 104, 108, 110, 111
    IEC Audio, video and multimedia Plus 20, 23, 29, 34, 35, 48, 49, 59, 64, 70, 72, 76, 77, 78, 86, 87, 100, 102, 103, 104, 106, 108, 110, 111, CIS
    IEC Automotive & rail 8, 9, 13, 21, 22, 23, 32, 34, 35, 46, 48, 64, 69, 77, 91, 100, 110, 111, 112
    IEC Automotive Essential 2, 44, 47, 55, 56, 65, 77, 104, CIS
    IEC Automotive Plus 2, 9, 14, 18, 22, 31, 44, 47, 55, 56, 64, 65, 69, 77, 100, 104, 110, CIS
    IEC Components 15, 17, 20, 23, 32, 33, 37, 46, 47, 48, 51, 55, 56, 57, 94, 95, 104, 111, 121, ACEA
    IEC Electronics 33, 40, 47, 48, 49, 76, 90, 91, 101, 107, 110, 113
    IEC Industrial automation 2, 17, 22, 26, 27, 44, 65, 66, 68, 109, 112, 121, JTC1/SC25, JTC1/SC41, ACART, ACSEC, SMB
    IEC Industrial automation Essential 2, 9, 17, 22, 26, 27, 31, 44, 65, 66, 68, 109, 112, 121, SMB
    IEC Industrial automation Plus 2, 9, 14, 17, 22, 26, 27, 31, 44, 56, 65, 66, 68, 77, 104, 109, 112, 121, CIS, SMB
    IEC Medical 3, 22, 29, 44, 45, 61, 62, 64, 66, 70, 76, 77, 78, 79, 87, 89, 106, 108, 111, ACEC, CIS
    IEC Medical Essential 62, 64, 66, 76, 101
    IEC Medical Plus 29, 56, 61, 62, 64, 66, 70, 76, 77, 87, 96, 101, 104, 106, 108, 111, ACEC, CIS
    IEC Petrochemical 2, 5, 17, 18, 20, 29, 31, 44, 57, 65, 77, 79, 81, 104, 121
    IEC Petrochemical Essential 2, 4, 17, 18, 20, 31, 56, 57, 64, 65, 77, 81, 85, 89, 95, 104
    IEC Petrochemical Plus 2, 3, 4, 8, 14, 17, 18, 20, 22, 31, 37, 38, 44, 46, 47, 48, 55, 56, 57, 64, 65, 70, 77, 81, 82, 85, 89, 94, 95, 99, 104, 109, 112, CIS, SMB
    IEC Power utilities 4, 5, 7, 8, 10, 11, 13, 14, 17, 20, 22, 36, 38, 42, 45, 57, 73, 78, 82, 85, 88, 96, 99, 105, 109, 114, 115, 117, 118, 120, 122, ACEE, ACTAD, SyC Smart Energy
    IEC Power utilities Essential 4, 5, 10, 11, 14, 17, 20, 22, 36, 42, 45, 57, 70, 73, 77, 78, 82, 86, 88, 99, 109
    IEC Power utilities Plus 2, 4, 5, 7, 8, 10, 11, 14, 15, 17, 18, 20, 22, 31, 36, 38, 42, 44, 45, 55, 56, 57, 64, 65, 70, 73, 77, 78, 81, 82, 86, 88, 95, 96, 99, 104, 112, 114, 115, CIS
    IEC Telecom Essential 29, 35, 46, 77, 86, 100, 106, 108, CIS
    IEC Telecom Plus 20, 29, 35, 37, 46, 49, 51, 56, 57, 77, 78, 86, 100, 102, 103, 106, 108, CIS
    IEC Terminology 1, 3, 25

    The annual fee will depend on the number of users and sites. Contact us to receive a quote.

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    IEC 60191-2
    IEC 60417 / ISO 7000
    IEC 60617
    IECEE CB Bulletin I
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    The Redline version provides you with a quick and easy way to compare all the changes between the standard and its previous edition. The following publications are available: S+ CISPR 14-2 Edition 2.0 New Electromagnetic compatibility – Requirements for household appliances, electric tools and similar apparatus – Part 2: Immunity – Product family standard S+ CISPR 16-1-1 Edition 3.0 Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-1: Radio disturbance and immunity measuring apparatus - Measuring apparatus S+ CISPR 16-1-2 Edition 2.0 Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-2: Radio disturbance and immunity measuring apparatus - Coupling devices for conducted disturbance measurements S+ CISPR 22 Edition 6.0 Information technology equipment – Radio disturbance characteristics – Limits and methods of measurement S+ IEC 60068-2-78 Edition 2.0 Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady state S+ IEC 60079-0 Edition 6.0 Explosive atmospheres - Part 0: Equipment - General requirements S+ IEC 60079-1 Edition 7.0 Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d" S+ IEC 60079-2 Edition 6.0 Explosive atmospheres - Part 2: Equipment protection by pressurized enclosure "p" S+ IEC 60079-5 Edition 4.0 New Explosive atmospheres – Part 5: Equipment protection by powder filling "q" S+ IEC 60079-10-2 Edition 2.0 Explosive atmospheres – Part 10-2: Classification of areas – Explosive dust atmospheres S+ IEC 60079-11 Edition 6.0 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i" S+ IEC 60079-18 Edition 4.0 Explosive atmospheres - Part 18: Equipment protection by encapsulation "m" S+ IEC 60079-26 Edition 3.0 Explosive atmospheres – Part 26: Equipment with Equipment Protection Level (EPL) Ga S+ IEC 60296 Edition 4.0 Fluids for electrotechnical applications – Unused mineral insulating oils for transformers and switchgear S+ IEC 60335-2-7 Edition 7.0 Household and similar electrical appliances - Safety - Part 2-7: Particular requirements for washing machines S+ IEC 60502-2 Edition 3.0 Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV) - Part 2: Cables for rated voltages from 6 kV (Um = 7,2 kV) up to 30 kV (Um = 36 kV) S+ IEC 60601-1-11 Edition 2.0 Medical electrical equipment – Part 1-11: General requirements for basic safety and essential performance – Collateral Standard: Requirements for medical electrical equipment and medical electrical systems used in the home healthcare environment S+ IEC 60695-2-11 Edition 2.0 Fire hazard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire flammability test method for end-products (GWEPT) S+ IEC 60831-1 Edition 3.0 Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1 000 V – Part 1: General – Performance, testing and rating – Safety requirements – Guide for installation and operation S+ IEC 60840 Edition 4.0 Power cables with extruded insulation and their accessories for rated voltages above 30 kV ( U m  = 36 kV) up to 150 kV ( U m  = 170 kV) – Test methods and requirements S+ IEC 60904-2 Edition 3.0 Photovoltaic devices – Part 2: Requirements for photovoltaic reference devices S+ IEC 60909-3 Edition 3.0 Short-circuit currents in three-phase AC systems – Part 3: Currents during two separate simultaneous line-to-earth short circuits and partial short-circuit currents flowing through earth S+ IEC 61000-3-3 Edition 3.0 Electromagnetic compatibility (EMC) - Part 3-3: Limits - Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current ≤16 A per phase and not subject to conditional connection S+ IEC 61000-4-4 Edition 3.0 Electromagnetic compatibility (EMC) – Part 4-4: Testing and measurement techniques – Electrical fast transient/burst immunity test S+ IEC 61000-4-8 Edition 2.0 Electromagnetic compatibility (EMC) – Part 4-8: Testing and measurement techniques - Power frequency magnetic field immunity test S+ IEC 61000-4-15 Edition 2.0 Electromagnetic compatibility (EMC) – Part 4-15: Testing and measurement techniques - Flickermeter - Functional and design specifications S+ IEC 61000-4-30 Edition 3.0 New Electromagnetic compatibility (EMC) – Part 4-30: Testing and measurement techniques – Power quality measurement methods S+ IEC 61010-2-081 Edition 2.0 Safety requirements for electrical equipment for measurement, control and laboratory use – Part 2-081: Particular requirements for automatic and semi-automatic laboratory equipment for analysis and other purposes S+ IEC 61010-2-101 Edition 2.0 Safety requirements for electrical equipment for measurement, control and laboratory use – Part 2-101: Particular requirements for in vitro diagnostic (IVD) medical equipment S+ IEC 61082-1 Edition 3.0 Preparation of documents used in electrotechnology – Part 1: Rules S+ IEC 61326-1 Edition 2.0 Electrical equipment for measurement, control and laboratory use - EMC requirements - Part 1: General requirements S+ IEC 61347-1 Edition 3.0 New Lamp controlgear – Part 1: General and safety requirements S+ IEC 61508 Edition 2.0 BESTSELLER Functional safety of electrical/electronic/programmable electronic safety-related systems - ALL PARTS together with a commented Redline version S+ IEC 62055-41 Edition 2.0 Electricity metering – Payment systems – Part 41: Standard transfer specification (STS) – Application layer protocol for one-way token carrier systems S+ IEC 62067 Edition 2.0 Power cables with extruded insulation and their accessories for rated voltages above 150 kV ( U m  = 170 kV) up to 500 kV ( U m  = 550 kV) – Test methods and requirements S+ IEC 62087 Edition 3.0 Methods of measurement for the power consumption of audio, video and related equipment S+ IEC 62133 Edition 2.0 Secondary cells and batteries containing alkaline or other non-acid electrolytes – Safety requirements for portable sealed secondary cells, and for batteries made from them, for use in portable applications

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