ISO/IEC TR 29106:2007

ISO/IEC TR 29106
Edition 1.0 2007-11
TECHNICAL
REPORT
Information technology – Generic cabling –
Introduction to the MICE environmental classification

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 ISO/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.
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It also gives information on projects, withdrawn and replaced publications.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
If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service
Centre FAQ or contact us:
Email: csc@iec.ch
Tel.: +41 22 919 02 11
Fax: +41 22 919 03 00
ISO/IEC TR 29106
Edition 1.0 2007-11
TECHNICAL
REPORT –TYPE 3
Information technology – Generic cabling –
Introduction to the MICE environmental classification

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
F
ICS 35.200 ISBN 2-8318-9386-0
– 2 – TR 29106 © ISO/IEC:2007(E)
CONTENTS
FOREWORD.3

1 Scope.5
2 Reference documents.5
3 Terms, definitions and abbreviations .6
3.1 Terms and definitions .6
3.2 Abbreviations .6
4 Application of environmental classification.6
4.1 MICE.6
4.2 Channel environment .6
4.3 Component selection.7
5 MICE system .10
5.1 General .10
5.2 Mechanical environment.10
5.3 Ingress protection and climatic environment .11
5.4 Chemical environment.13
5.5 Electromagnetic environment .15
Bibliography.16

Figure 1 – Example of variation of the environment along an industrial premises
cabling channel.7
Figure 2 – The local environment.7

Table 1 – Details of environmental classification.8
Table 2 – Derivation of boundaries for mechanical criteria in Table 1.10
Table 3 – Derivation of boundaries for ingress protection criteria in Table 1.11
Table 4 – Derivation of boundaries for climatic criteria in Table 1.11
Table 5 – Derivation of boundaries for chemical criteria in Table 1.13
Table 6 – Derivation of boundaries for electromagnetic criteria in Table 1.15

TR 29106 © ISO/IEC:2007(E) – 3 –
INFORMATION TECHNOLOGY –
GENERIC CABLING –
INTRODUCTION TO THE MICE
ENVIRONMENTAL CLASSIFICATION
FOREWORD
1) ISO (International Organization for Standardization) and IEC (International Electrotechnical Commission) form the
specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in
the development of International Standards. Their preparation is entrusted to technical committees; any ISO and
IEC member body interested in the subject dealt with may participate in this preparatory work. International
governmental and non-governmental organizations liaising with ISO and IEC also participate in this preparation.
2) In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote.
3) The formal decisions or agreements of IEC and ISO 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 and ISO member bodies.
4) IEC, ISO and ISO/IEC publications have the form of recommendations for international use and are accepted
by IEC and ISO member bodies in that sense. While all reasonable efforts are made to ensure that the
technical content of IEC, ISO and ISO/IEC publications is accurate, IEC or ISO cannot be held responsible for
the way in which they are used or for any misinterpretation by any end user.
5) In order to promote international uniformity, IEC and ISO member bodies undertake to apply IEC, ISO and
ISO/IEC publications transparently to the maximum extent possible in their national and regional publications.
Any divergence between any ISO/IEC publication and the corresponding national or regional publication
should be clearly indicated in the latter.
6) ISO and IEC provide no marking procedure to indicate their approval and cannot be rendered responsible for
any equipment declared to be in conformity with an ISO/IEC publication.
7) All users should ensure that they have the latest edition of this publication.
8) No liability shall attach to IEC or ISO or its directors, employees, servants or agents including individual experts
and members of their technical committees and IEC or ISO member bodies 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 of, use of, or reliance upon, this ISO/IEC publication or any other IEC,
ISO or ISO/IEC publications.
9) Attention is drawn to the reference documents cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
10) Attention is drawn to the possibility that some of the elements of this Technical Report, type 3 may be the subject
of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
The main task of IEC and ISO technical committees is to prepare International Standards. In
exceptional circumstances, ISO/IEC JTC 1 or a subcommittee may propose the publication of
a technical report of one of the following types:
• type 1, when the required support cannot be obtained for the publication of an
International Standard, despite repeated efforts;
• type 2, when the subject is still under technical development or where, for any other
reason, there is the future but not immediate possibility of an agreement on an
International Standard;
• type 3, when the technical committee has collected data of a different kind from that which
is normally published as an International Standard, for example ‘state of the art’.

– 4 – TR 29106 © ISO/IEC:2007(E)
ISO/IEC 29106, which is a Technical Report of type 3, has been prepared by
subcommittee 25: Interconnection of information technology equipment, of ISO/IEC joint
technical committee 1: Information technology.
Technical reports of types 1 and 2 are subject to review within three years of publication to
decide whether they can be transformed into International Standards. Technical reports of
type 3 do not necessarily have to be reviewed until the data they provide are considered to be
no longer valid or useful.
This Technical Report of type 3 has been approved by vote of the member bodies, and the
voting results may be obtained from the address given on the second title page.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

TR 29106 © ISO/IEC:2007(E) – 5 –
INFORMATION TECHNOLOGY –
GENERIC CABLING –
INTRODUCTION TO THE MICE
ENVIRONMENTAL CLASSIFICATION
1 Scope
This Technical Report acts as an introduction to the concepts used to develop the MICE
environmental classification system used in cabling standards developed by ISO/IEC. It also
provides detailed explanation of the sources used to define the boundaries of MICE
classifications.
2 Reference documents
The following referenced documents are indispensable for the application 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.
ISO/IEC 11801, Information technology – Generic cabling for customer premises
ISO/IEC 15018, Information technology – Generic cabling for homes
ISO/IEC 24702, Information technology – Generic cabling – Industrial premises
IEC 60068-2-5:1975, Environmental testing – Part 2: Tests. Test Sa: Simulated solar radiation at
ground level
IEC 60654-4:1987 Operating conditions for industrial-process measurement and control equipment.
Part 4: Corrosive and erosive influences
IEC 60721-1, Classification of environmental conditions – Part 1: Environmental parameters and
their severities
IEC 60721-3-3, Classification of environmental conditions – Part 3-3: Classification of groups of
environmental parameters and their severities - Stationary use at weatherprotected locations
IEC 61000-2-5, Electromagnetic compatibility (EMC) – Part 2: Environment – Section 5:
Classification of electromagnetic environments. Basic EMC publication
IEC 61000-6-1, Electromagnetic compatibility (EMC) – Part 6-1: Generic standards – Immunity for
residential, commercial and light-industrial environments
IEC 61000-6-2, Electromagnetic compatibility (EMC) – Part 6-2: Generic standards – Immunity for
industrial environments
IEC 61131-2, Programmable controllers – Part 2: Equipment requirements and tests
IEC 61326:2001, Electrical equipment for measurement, control and laboratory use – EMC
requirements
IEC 61918, Industrial communication networks – Installation of communication networks in industrial
premises
– 6 – TR 29106 © ISO/IEC:2007(E)
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this Technical Report the definitions of the applicable generic cabling
standards ISO/IEC 11801, ISO/IEC 15018 and ISO/IEC 24702 apply.
3.2 Abbreviations
For the purposes of this Technical Report the abbreviations of the applicable generic cabling
standards ISO/IEC 11801, ISO/IEC 15018 and ISO/IEC 24702 apply.
4 Application of environmental classification
4.1 MICE
The term MICE referenced in generic cabling standards produced by ISO/IEC relates to the
classification of the environment of the cabling channel.
There are four primary environmental criteria used to classify an environment:
• the M element, defining the mechanical characteristics of the environment;
• the I element, defining the ingress protection characteristics of the environment;
• the C element, defining the climatic and chemical characteristics of the environment;
• the E element, defining the electromagnetic characteristics of the environment.
Each of the four primary environmental criteria are further divided into specific parameters
and levels for those parameters. The MICE classification for a given location is therefore
defined as M I C E where a, b, c and d are the individual sub-classifications (levels) for the
a b c d
M, I, C and E criteria respectively.
The suffixes for the four primary environmental criteria are either 1, 2 or 3. For example, the
most benign environment is described as M I C E whereas the most harsh environment
1 1 1 1
within the scope of this standard would be defined as M I C E .
3 3 3 3
4.2 Channel environment
The applicable
...

ISO/IEC TR 29106
Edition 1.0 2007-11
TECHNICAL
REPORT
Information technology – Generic cabling –
Introduction to the MICE environmental classification

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
ISO/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 Secretariat Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
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 corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 19 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc

If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
ISO/IEC TR 29106
Edition 1.0 2007-11
TECHNICAL
REPORT
Information technology – Generic cabling –

Introduction to the MICE environmental classification

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 35.200 ISBN 2-8318-9386-0
– 2 – TR 29106 © ISO/IEC:2007(E)
CONTENTS
FOREWORD.3

1 Scope.5
2 Reference documents.5
3 Terms, definitions and abbreviations .6
3.1 Terms and definitions .6
3.2 Abbreviations .6
4 Application of environmental classification.6
4.1 MICE.6
4.2 Channel environment .6
4.3 Component selection.7
5 MICE system .10
5.1 General .10
5.2 Mechanical environment.10
5.3 Ingress protection and climatic environment .11
5.4 Chemical environment.13
5.5 Electromagnetic environment .15
Bibliography.16

Figure 1 – Example of variation of the environment along an industrial premises
cabling channel.7
Figure 2 – The local environment.7

Table 1 – Details of environmental classification.8
Table 2 – Derivation of boundaries for mechanical criteria in Table 1.10
Table 3 – Derivation of boundaries for ingress protection criteria in Table 1.11
Table 4 – Derivation of boundaries for climatic criteria in Table 1.11
Table 5 – Derivation of boundaries for chemical criteria in Table 1.13
Table 6 – Derivation of boundaries for electromagnetic criteria in Table 1.15

TR 29106 © ISO/IEC:2007(E) – 3 –
INFORMATION TECHNOLOGY –
GENERIC CABLING –
INTRODUCTION TO THE MICE
ENVIRONMENTAL CLASSIFICATION
FOREWORD
1) ISO (International Organization for Standardization) and IEC (International Electrotechnical Commission) form the
specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in
the development of International Standards. Their preparation is entrusted to technical committees; any ISO and
IEC member body interested in the subject dealt with may participate in this preparatory work. International
governmental and non-governmental organizations liaising with ISO and IEC also participate in this preparation.
2) In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote.
3) The formal decisions or agreements of IEC and ISO 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 and ISO member bodies.
4) IEC, ISO and ISO/IEC publications have the form of recommendations for international use and are accepted
by IEC and ISO member bodies in that sense. While all reasonable efforts are made to ensure that the
technical content of IEC, ISO and ISO/IEC publications is accurate, IEC or ISO cannot be held responsible for
the way in which they are used or for any misinterpretation by any end user.
5) In order to promote international uniformity, IEC and ISO member bodies undertake to apply IEC, ISO and
ISO/IEC publications transparently to the maximum extent possible in their national and regional publications.
Any divergence between any ISO/IEC publication and the corresponding national or regional publication
should be clearly indicated in the latter.
6) ISO and IEC provide no marking procedure to indicate their approval and cannot be rendered responsible for
any equipment declared to be in conformity with an ISO/IEC publication.
7) All users should ensure that they have the latest edition of this publication.
8) No liability shall attach to IEC or ISO or its directors, employees, servants or agents including individual experts
and members of their technical committees and IEC or ISO member bodies 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 of, use of, or reliance upon, this ISO/IEC publication or any other IEC,
ISO or ISO/IEC publications.
9) Attention is drawn to the reference documents cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
10) Attention is drawn to the possibility that some of the elements of this Technical Report, type 3 may be the subject
of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
The main task of IEC and ISO technical committees is to prepare International Standards. In
exceptional circumstances, ISO/IEC JTC 1 or a subcommittee may propose the publication of
a technical report of one of the following types:
• type 1, when the required support cannot be obtained for the publication of an
International Standard, despite repeated efforts;
• type 2, when the subject is still under technical development or where, for any other
reason, there is the future but not immediate possibility of an agreement on an
International Standard;
• type 3, when the technical committee has collected data of a different kind from that which
is normally published as an International Standard, for example ‘state of the art’.

– 4 – TR 29106 © ISO/IEC:2007(E)
ISO/IEC 29106, which is a Technical Report of type 3, has been prepared by
subcommittee 25: Interconnection of information technology equipment, of ISO/IEC joint
technical committee 1: Information technology.
Technical reports of types 1 and 2 are subject to review within three years of publication to
decide whether they can be transformed into International Standards. Technical reports of
type 3 do not necessarily have to be reviewed until the data they provide are considered to be
no longer valid or useful.
This Technical Report of type 3 has been approved by vote of the member bodies, and the
voting results may be obtained from the address given on the second title page.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

TR 29106 © ISO/IEC:2007(E) – 5 –
INFORMATION TECHNOLOGY –
GENERIC CABLING –
INTRODUCTION TO THE MICE
ENVIRONMENTAL CLASSIFICATION
1 Scope
This Technical Report acts as an introduction to the concepts used to develop the MICE
environmental classification system used in cabling standards developed by ISO/IEC. It also
provides detailed explanation of the sources used to define the boundaries of MICE
classifications.
2 Reference documents
The following referenced documents are indispensable for the application 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.
ISO/IEC 11801, Information technology – Generic cabling for customer premises
ISO/IEC 15018, Information technology – Generic cabling for homes
ISO/IEC 24702, Information technology – Generic cabling – Industrial premises
IEC 60068-2-5:1975, Environmental testing – Part 2: Tests. Test Sa: Simulated solar radiation at
ground level
IEC 60654-4:1987 Operating conditions for industrial-process measurement and control equipment.
Part 4: Corrosive and erosive influences
IEC 60721-1, Classification of environmental conditions – Part 1: Environmental parameters and
their severities
IEC 60721-3-3, Classification of environmental conditions – Part 3-3: Classification of groups of
environmental parameters and their severities - Stationary use at weatherprotected locations
IEC 61000-2-5, Electromagnetic compatibility (EMC) – Part 2: Environment – Section 5:
Classification of electromagnetic environments. Basic EMC publication
IEC 61000-6-1, Electromagnetic compatibility (EMC) – Part 6-1: Generic standards – Immunity for
residential, commercial and light-industrial environments
IEC 61000-6-2, Electromagnetic compatibility (EMC) – Part 6-2: Generic standards – Immunity for
industrial environments
IEC 61131-2, Programmable controllers – Part 2: Equipment requirements and tests
IEC 61326:2001, Electrical equipment for measurement, control and laboratory use – EMC
requirements
IEC 61918, Industrial communication networks – Installation of communication networks in industrial
premises
– 6 – TR 29106 © ISO/IEC:2007(E)
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this Technical Report the definitions of the applicable generic cabling
standards ISO/IEC 11801, ISO/IEC 15018 and ISO/IEC 24702 apply.
3.2 Abbreviations
For the purposes of this Technical Report the abbreviations of the applicable generic cabling
standards ISO/IEC 11801, ISO/IEC 15018 and ISO/IEC 24702 apply.
4 Application of environmental classification
4.1 MICE
The term MICE referenced in generic cabling standards produced by ISO/IEC relates to the
classification of the environment of the cabling channel.
There are four primary environmental criteria used to classify an environment:
• the M element, defining the mechanical characteristics of the environment;
• the I element, defining the ingress protection characteristics of the environment;
• the C element, defining the climatic and chemical characteristics of the environment;
• the E element, defining the electromagnetic characteristics of the environment.
Each of the four primary environmental criteria are further divided into specific parameters
and levels for those parameters. The MICE classification for a given location is therefore
defined as M I C E where a, b, c and d are the individual sub-classif
...

ISO/IEC TR 29106
Edition 1.2 2019-07
CONSOLIDATED VERSION
TECHNICAL
REPORT
Information technology –
Generic cabling – Introduction to the MICE environmental classification

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
ISO/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 Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
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 corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.

need further assistance, please contact the Customer Service

Centre: sales@iec.ch.
ISO/IEC TR 29106
Edition 1.2 2019-07
CONSOLIDATED VERSION
TECHNICAL
REPORT
Information technology –
Generic cabling – Introduction to the MICE environmental classification

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 35.200 ISBN 978-2-8322-7203-9

ISO/IEC TR 29106
Edition 1.2 2019-07
CONSOLIDATED VERSION
REDLINE VERSION
Information technology –
Generic cabling – Introduction to the MICE environmental classification
– 2 – ISO/IEC TR 29106:2007+AMD1:2012
+AMD2:2019 CSV © ISO/IEC 2019
CONTENTS
FOREWORD . 3
INTRODUCTION to Amendment 1 . 5
1 Scope . 6
2 Reference documents . 6
3 Terms, definitions and abbreviations . 7
3.1 Terms and definitions . 7
3.2 Abbreviations . 7
4 Application of environmental classification . 7
4.1 MICE . 7
4.2 Channel environment . 8
4.3 Component selection . 8
5 MICE system . 10
5.1 General . 10
5.2 Mechanical environment classification . 11
5.3 Ingress protection and climatic environment classification . 12
5.4 Chemical environment classification . 13
5.5 Electromagnetic environment classification . 15
Bibliography . 17

Figure 1 – Example of variation of the environment along an industrial premises
cabling channel . 8
Figure 2 – The local environment . 8

Table 1 – Details of environmental classification . 9
Table 2 – Derivation of boundaries for mechanical criteria in Table 1 . 11
Table 3 – Derivation of boundaries for ingress protection criteria in Table 1 . 12
Table 4 – Derivation of boundaries for climatic criteria in Table 1. 12
Table 5 – Derivation of boundaries for chemical criteria in Table 1 . 13
Table 6 – Derivation of boundaries for electromagnetic criteria in Table 1 . 16

+AMD2:2019 CSV © ISO/IEC 2019
INFORMATION TECHNOLOGY –
GENERIC CABLING –
INTRODUCTION TO THE MICE ENVIRONMENTAL CLASSIFICATION
FOREWORD
1) ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission)
form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC
participate in the development of International Standards through technical committees established by the
respective organization to deal with particular fields of technical activity. ISO and IEC technical committees
collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in
liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have
established a joint technical committee, ISO/IEC JTC 1.
2) The formal decisions or agreements of IEC and ISO 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 and ISO member bodies.
3) IEC, ISO and ISO/IEC publications have the form of recommendations for international use and are accepted
by IEC National Committees and ISO member bodies in that sense. While all reasonable efforts are made to
ensure that the technical content of IEC, ISO and ISO/IEC publications is accurate, IEC or ISO 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 and ISO member bodies undertake to
apply IEC, ISO and ISO/IEC publications transparently to the maximum extent possible in their national and
regional publications. Any divergence between any ISO, IEC or ISO/IEC publication and the corresponding
national or regional publication should be clearly indicated in the latter.
5) ISO and IEC do not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. ISO or IEC are 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 ISO or its directors, employees, servants or agents including individual experts
and members of their technical committees and IEC National Committees or ISO member bodies 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 of, use of, or reliance upon, this ISO/IEC
publication or any other IEC, ISO or ISO/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 ISO/IEC publication may be the subject of
patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
This consolidated version of the official IEC Standard and its amendments has been
prepared for user convenience.
ISO/IEC TR 29106 edition 1.2 contains the first edition (2007-11), its amendment 1
(2012-12) and its amendment 2 (2019-07) [documents JTC1-SC25/2836/DTR and JTC1-
SC25/2853/RVDTR].
In this Redline version, a vertical line in the margin shows where the technical content
is modified by amendments 1 and 2. Additions are in green text, deletions are in
strikethrough red text. A separate Final version with all changes accepted is available
in this publication.
– 4 – ISO/IEC TR 29106:2007+AMD1:2012
+AMD2:2019 CSV © ISO/IEC 2019
The main task of IEC and ISO technical committees is to prepare International Standards. In
exceptional circumstances, ISO/IEC JTC 1 or a subcommittee may propose the publication of
a technical report of one of the following types:
• type 1, when the required support cannot be obtained for the publication of an
International Standard, despite repeated efforts;
• type 2, when the subject is still under technical development or where, for any other
reason, there is the future but not immediate possibility of an agreement on an
International Standard;
• type 3, when the technical committee has collected data of a different kind from that which
is normally published as an International Standard, for example ‘state of the art’.
ISO/IEC 29106, which is a Technical Report of type 3, has been prepared by
subcommittee 25: Interconnection of information technology equipment, of ISO/IEC joint
technical committee 1: Information technology.
Technical reports of types 1 and 2 are subject to review within three years of publication to
decide whether they can be transformed into International Standards. Technical reports of
type 3 do not necessarily have to be reviewed until the data they provide are considered to be
no longer valid or useful.
This Technical Report of type 3 has been approved by vote of the member bodies, and the
voting results may be obtained from the address given on the second title page.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates that it
contains colours which are considered to be useful for the correct understanding of its
contents. Users should therefore print this document using a colour printer.

+AMD2:2019 CSV © ISO/IEC 2019
INTRODUCTION to Amendment 1
The Amendment has been developed to correct the misalignment of the MICE table with
ISO/IEC 24702.
– 6 – ISO/IEC TR 29106:2007+AMD1:2012
+AMD2:2019 CSV © ISO/IEC 2019
INFORMATION TECHNOLOGY –
GENERIC CABLING –
INTRODUCTION TO THE MICE ENVIRONMENTAL CLASSIFICATION

1 Scope
This Technical Report acts as an introduction to the concepts used to develop the MICE
environmental classification system used in cabling standards developed by ISO/IEC. It also
provides detailed explanation of the sources used to define the boundaries of MICE
classifications.
2 Reference documents
The following referenced documents are indispensable for the application 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.
ISO/IEC 11801, Information technology – Generic cabling for customer premises
ISO/IEC 11801-1:2017, Information technology – Generic cabling for customer premises –
Part 1: General requirements
ISO/IEC 11801-2, Information technology – Generic cabling for customer premises –
Part 2: Office premises
ISO/IEC 11801-3, Information technology – Generic cabling for customer premises –
Part 3: Industrial premises
ISO/IEC 11801-4, Information technology – Generic cabling for customer premises –
Part 4: Single-tenant homes
ISO/IEC 11801-5, Information technology – Generic cabling for customer premises –
Part 5: Data centres
ISO/IEC 11801-6, Information technology – Generic cabling for customer premises –
Part 6: Distributed building services
ISO/IEC 15018, Information technology – Generic cabling for homes
ISO/IEC 24702, Information technology – Generic cabling – Industrial premises
IEC 60068-2-5:1975, Environmental testing – Part 2: Tests. Test Sa: Simulated solar radiation at
ground level
IEC 60654-4:1987 Operating conditions for industrial-process measurement and control equipmen
...