SIST EN 61300-1:2017

Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 1: General and guidance (IEC 61300-1:2016)

This part of IEC 61300 provides general information and guidance for the basic test and
measurement procedures defined in the IEC 61300-2 and IEC 61300-3 series for
interconnecting devices and passive components.
This standard should be used in combination with the relevant specification which will define
the tests to be used, the required degree of severity for each of them, their sequence, if
relevant, and the permissible performance limits. In the event of conflict between this basic
standard and the relevant specification, the latter will take precedence.

Lichtwellenleiter - Verbindungselemente und passive Bauteile - Grundlegende Prüf- und Messverfahren - Teil 1: Allgemeines und Leitfaden (IEC 61300-1:2016)

Dispositifs d'interconnexion et composants passifs à fibres optiques - Méthodes fondamentales d'essais et de mesures - Partie 1: Généralités et lignes directrices (IEC 61300-1:2016)

L'IEC 61300-1:2016 donne des informations d'ordre général et des lignes directrices concernant les procédures fondamentales d'essais et de mesures définies dans les séries IEC 61300-2 et IEC 61300-3 et applicables aux dispositifs d'interconnexion et aux composants passifs. Il convient d'utiliser la présente norme avec la spécification particulière qui définit les essais à réaliser, le degré de sévérité exigé pour chacun d'eux, l'ordre dans lequel ils sont effectués, le cas échéant, et les limites des performances admissibles. Si la présente norme fondamentale et la spécification particulière sont en contradiction, c'est cette dernière qui prévaut. Cette quatrième édition annule et remplace la troisième édition parue en 2011. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: révision des termes et définitions; ajout de l'Article 4.
Mots clés : procédures d'essais et de mesures pour dispositifs d'interconnexion et aux composants passifs

Optični spojni elementi in pasivne komponente - Postopki osnovnega preskušanja in merjenja - 1. del: Splošno in smernice (IEC 61300-1:2016)

Ta del standarda IEC 61300 podaja splošne informacije in smernice za postopke osnovnega preskušanja in merjenja, opredeljene v skupinah standardov IEC 61300-2 in IEC 61300-3, za spojne elemente in pasivne komponente.
Ta standard naj bi se uporabljal v kombinaciji z ustrezno specifikacijo, ki bo opredelila preskuse, ki jih je treba uporabiti, zahtevano stopnjo za vsakega od njih, njihovo zaporedje, če je pomembno, in dovoljene mejne vrednosti. V primeru neskladij med tem osnovnim standardom in ustrezno specifikacijo ima prednost specifikacija.

General Information

• Status: Withdrawn
• Publication Date: 15-Dec-2016
• Withdrawal Date: 21-May-2023
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: MOC - Mobile Communications
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 22-May-2023
• Due Date: 14-Jun-2023
• Completion Date: 22-May-2023
• Ref Project: EN 61300-1:2016 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 1: General and guidance

Relations

• Replaced By: SIST EN IEC 61300-1:2022 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 1: General and guidance (IEC 61300-1:2022)
• Effective Date: 17-May-2022
• Replaces: SIST EN 61300-1:2011 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 1: General and guidance (IEC 61300-1:2011)
• Effective Date: 13-Dec-2016

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61300-1:2017
01-februar-2017
1DGRPHãþD
SIST EN 61300-1:2011
2SWLþQLVSRMQLHOHPHQWLLQSDVLYQHNRPSRQHQWH3RVWRSNLRVQRYQHJDSUHVNXãDQMD
LQPHUMHQMDGHO6SORãQRLQVPHUQLFH,(&
Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 1: General and guidance (IEC 61300-1:2016)
Lichtwellenleiter - Verbindungselemente und passive Bauteile - Grundlegende Prüf- und
Messverfahren - Teil 1: Allgemeines und Leitfaden (IEC 61300-1:2016)
Dispositifs d'interconnexion et composants passifs à fibres optiques - Méthodes
fondamentales d'essais et de mesures - Partie 1: Généralités et lignes directrices (IEC
61300-1:2016)
Ta slovenski standard je istoveten z: EN 61300-1:2016
ICS:
33.180.20 3RYH]RYDOQHQDSUDYH]D Fibre optic interconnecting
RSWLþQDYODNQD devices
SIST EN 61300-1:2017 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61300-1:2017

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SIST EN 61300-1:2017


EUROPEAN STANDARD EN 61300-1

NORME EUROPÉENNE

EUROPÄISCHE NORM
December 2016
ICS 33.180.20 Supersedes EN 61300-1:2011
English Version
Fibre optic interconnecting devices and passive components -
Basic test and measurement procedures -
Part 1: General and guidance
(IEC 61300-1:2016)
Dispositifs d'interconnexion et composants passifs Lichtwellenleiter -Verbindungselemente und passive
fibroniques - Procédures fondamentales d'essais et de Bauteile - Grundlegende Prüf- und Messverfahren -
mesures - Partie 1: Généralités et lignes directrices Teil 1: Allgemeines und Leitfaden
(IEC 61300-1:2016) (IEC 61300-1:2016)
This European Standard was approved by CENELEC on 2016-09-01. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard 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 European Standard 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.


European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 61300-1:2016 E

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SIST EN 61300-1:2017
EN 61300-1:2016
European foreword
The text of document 86B/3992/FDIS, future edition 4 of IEC 61300-1, prepared by SC 86B “Fibre
optic interconnecting devices and passive components” of IEC/TC 86 “Fibre Optics" was submitted to
the IEC-CENELEC parallel vote and approved by CENELEC as EN 61300-1:2016.

The following dates are fixed:
(dop) 2017-06-09
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2017-12-09
standards conflicting with the
document have to be withdrawn

This document supersedes EN 61300-1:2011.

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.

Endorsement notice
The text of the International Standard IEC 61300-1:2016 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 standards indicated:

IEC 60068-2-1 NOTE Harmonized as EN 60068-2-1.
IEC 61315 NOTE Harmonized as EN 61315.
IEC 62614 NOTE Harmonized as EN 62614.
2

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SIST EN 61300-1:2017
EN 61300-1:2016
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE 1 When 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.cenelec.eu

Publication Year Title EN/HD Year

-
IEC 60050-731 -  International Electrotechnical Vocabulary - -
Chapter 731: Optical fibre communication
-
IEC 60617-DB -  Graphical symbols for diagrams -
-
IEC 60793-2-10 -  Optical fibres - EN 60793-2-10
Part 2-10: Product specifications -
Sectional specification for category A1
multimode fibres
-
IEC 60793-2-30 -  Optical fibres - EN 60793-2-30
Part 2-30: Product specifications -
Sectional specification for category A3
multimode fibres
-
IEC 60793-2-40 -  Optical fibres - EN 60793-2-40
Part 2-40: Product specifications -
Sectional specification for category A4
multimode fibres
-
IEC 60825-1 -  Safety of laser products - EN 60825-1
Part 1: Equipment classification and
requirements
-
IEC 60825-2 -  Safety of laser products - EN 60825-2
Part 2: Safety of optical fibre
communication systems (OFCS)
-
IEC 61280-1-4 -  Fibre optic communication subsystem test EN 61280-1-4
procedures -
Part 1-4: General communication
subsystems - Light source encircled flux
measurement method
-
IEC 61280-4-1 -  Fibre optic communication subsystem test EN 61280-4-1
procedures -
Part 4-1: Installed cable plant - Multimode
attenuation measurement
Series
IEC 61300-2 Series Fibre optic interconnecting devices and EN 61300-2
passive components - Basic test and
measurement procedures -
Part 2: Tests
3

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SIST EN 61300-1:2017
EN 61300-1:2016
Publication Year Title EN/HD Year

Series
IEC 61300-3 Series Fibre optic interconnecting devices and EN 61300-3
passive components - Basic test and
measurement procedures -
Part 3: Examinations and measurements
-
IEC 61300-3-1 -  Fibre optic interconnecting devices and EN 61300-3-1
passive components - Basic test and
measurement procedures -
Part 3-1: Examinations and measurements
- Visual examination
-
IEC 61300-3-35 -  Fibre optic interconnecting devices and EN 61300-3-35
passive components - Basic test and
measurement procedures -
Part 3-35: Examinations and
measurements - Visual inspection of fibre
optic connectors and fibre-stub
transceivers
-
IEC 61300-3-53 -  Fibre optic interconnecting devices and EN 61300-3-53
passive components - Basic test and
measurement procedures -
Part 3-53: Examinations and
Measurements - Encircled angular flux
(EAF) measurement method based on two-
dimensional far field data from step index
multimode waveguide (including fibre)

4

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SIST EN 61300-1:2017



IEC 61300-1

®


Edition 4.0 2016-07




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE











Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures –

Part 1: General and guidance




Dispositifs d'interconnexion et composants passifs fibroniques – Procédures

fondamentales d'essais et de mesures –


Partie 1: Généralités et lignes directrices













INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 33.180.20 ISBN 978-2-8322-3554-6



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN 61300-1:2017
– 2 – IEC 61300-1:2016  IEC 2016
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references. 7
3 Terms, definitions and abbreviations . 8
3.1 Terms and definitions . 8
3.2 Abbreviations . 10
4 Requirements for the IEC 61300-2 series and the IEC 61300-3 series . 10
4.1 Requirements for the IEC 61300-2 series . 10
4.2 Requirements for the IEC 61300-3 series . 10
4.2.1 General requirements . 10
4.2.2 Requirements for attenuation variation . 10
5 Standard atmospheric conditions . 10
6 Significance of the numerical value of a quantity . 11
6.1 General . 11
6.2 Quantity expressed as nominal value with tolerance . 11
6.3 Quantity expressed as a range of values . 12
7 Graphical symbols and terminology . 12
8 Safety . 12
9 Calibration . 13
9.1 General . 13
9.2 Round robin calibration procedure . 13
10 Launch conditions . 13
10.1 General . 13
10.2 Multimode launch conditions for A1b fibre . 13
10.3 Multimode launch conditions for A3e fibre . 14
10.4 Single-mode launch conditions . 14
Annex A (normative) Multimode launch condition requirement for measuring
attenuation of components terminated on IEC 60793-2-10 type A1a and A1b fibres . 16
A.1 General . 16
A.2 Technical background . 16
A.3 EF template . 16
A.3.1 Applicable types of optical fibres . 16
A.3.2 Encircled flux . 16
A.3.3 EF template example . 16
A.4 Target launch and upper and lower tolerance bands for attenuation
measurements of A1a and A1b optical fibre connections . 17
A.4.1 General . 17
A.4.2 Limits on EF. 17
A.5 EAF template . 18
A.5.1 Applicable types of optical fibres . 18
A.5.2 Encircled angular flux . 18
A.5.3 EAF template example . 18
A.6 Target launch and upper and lower tolerance bands for attenuation
measurements of A3e optical fibre connections . 19

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SIST EN 61300-1:2017
IEC 61300-1:2016  IEC 2016 – 3 –
A.6.1 General . 19
A.6.2 Limits on EAF . 19
Bibliography . 20

Figure A.1 – EF template example . 17
Figure A.2 – Encircled angular flux template example . 19

Table 1 – Standard atmospheric conditions . 11
Table 2 – Expected uncertainty for measured attenuation of single connections for
A1b fibre. 14
Table 3 – Expected uncertainty for measured attenuation of single connections for
A3e fibre. 14
Table A.1 – EF requirements for 50 µm core fibre at 850 nm . 17
Table A.2 – EF requirements for 50 µm core fibre at 1 300 nm . 18
Table A.3 – EF requirements for 62,5 µm fibre at 850 nm . 18
Table A.4 – EF requirements for 62,5 µm fibre at 1 300 nm . 18
Table A.5 – EAF requirements for NA of 0,37 and 200 µm core fibre at 850 nm . 19

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SIST EN 61300-1:2017
– 4 – IEC 61300-1:2016  IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –

Part 1: General and guidance

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61300-1 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre Optics.
This fourth edition cancels and replaces the third edition published in 2011. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) reconsideration of the terms and definitions;
b) addition of Clause 4.

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SIST EN 61300-1:2017
IEC 61300-1:2016  IEC 2016 – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
86B/3992/FDIS 86B/4008/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 61300 series, published under the general title, Fibre optic
interconnecting and passive components – Basic test and measurement procedures, can be
found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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SIST EN 61300-1:2017
– 6 – IEC 61300-1:2016  IEC 2016
INTRODUCTION
The publications in the IEC 61300 series contain information on mechanical and
environmental testing procedures and measurement procedures relating to fibre optic
interconnecting devices and passive components. They are intended to be used to achieve
uniformity and reproducibility in environmental testing procedures and measurement
procedures.
The term "test procedure" refers to procedures commonly known as mechanical and
environmental tests. The expressions "environmental conditioning" and "environmental
testing" refer to the environments to which components or equipment may be exposed so that
an assessment may be made of their performance under the conditions of use, transport and
storage.
The term "measurement procedure" refers to those measurements which are necessary
to assess the physical and optical characteristics of a component and may also be used
before, during or after a test procedure to measure the effects of environmental conditioning or
testing. The return loss and attenuation tests are examples of measurement procedures.
The requirements for the performance of components or equipment subjected to the test and
measurement procedures described in this part of IEC 61300 are not included. The relevant
specification for the device under test defines the allowed performance limits.
When drafting a specification or purchase contract, only those tests which are necessary for
the relevant components or equipment taking into account the technical and economic
aspects should be specified.
The mechanical and environmental test procedures are contained in the IEC 61300-2 series
and the measurement procedures in the IEC 61300-3 series. Each test or measurement
procedure is published as a stand-alone publication so that it may be modified, expanded or
cancelled without having an effect on any other test or measurement procedure. However it
should be noted that, where practical, reference is made to other standards as opposed to
repeating all or part of already existing standards. As an example, the cold test for fibre optic
apparatus refers to IEC 60068-2-1, but it also provides other needed information such as
purpose, recommended severities and a list of items to be specified.
Multiple methods may be contained in a test or measurement procedure. As an example,
several methods of measuring attenuation are contained in the attenuation measurement
procedure.
If more than one method is contained in a test or measurement procedure, the reference
method may be identified.
The tests in this standard permit the performance of components or equipment to be
compared. To assess the overall quality of a production lot, the test procedures should be
applied in accordance with a suitable sampling plan and may be supplemented by appropriate
additional tests, if necessary.
To provide tests appropriate to the different intensities of an environmental condition, some of
the test procedures have a number of degrees of severity. These different degrees of severity
are obtained by varying the time, temperature or some other determining factor separately or
in combination.

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SIST EN 61300-1:2017
IEC 61300-1:2016  IEC 2016 – 7 –
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –

Part 1: General and guidance



1 Scope
This part of IEC 61300 provides general information and guidance for the basic test and
measurement procedures defined in the IEC 61300-2 and IEC 61300-3 series for
interconnecting devices and passive components.
This standard should be used in combination with the relevant specification which will define
the tests to be used, the required degree of severity for each of them, their sequence, if
relevant, and the permissible performance limits. In the event of conflict between this basic
standard and the relevant specification, the latter will take precedence.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60050-731, International Electrotechnical Vocabulary – Chapter 731: Optical fibre
communication
IEC 60617, Graphical symbols for diagrams (available at http://std.iec.ch/iec60617)
IEC 60793-2-10, Optical fibres – Part 2-10: Product specifications – Sectional specification for
category A1 multimode fibres
IEC 60793-2-30, Optical fibres – Part 2-30: Product specifications – Sectional specification for
category A3 multimode fibres
IEC 60793-2-40, Optical fibres – Part 2-40: Product specifications – Sectional specification for
category A4 multimode fibres
IEC 60825-1, Safety of laser products – Part 1: Equipment classification and requirements
IEC 60825-2, Safety of laser products – Part 2: Safety of optical fibre communication systems
(OFCS)
IEC 61280-1-4, Fibre optic communication subsystem test procedures – Part 1-4: General
communication subsystems – Light source encircled flux measurement method
IEC 61280-4-1, Fibre optic communication subsystem test procedures – Part 4-1: Installed
cable plant – Multimode attenuation measurement
IEC 61300-2 (all parts), Fibre optic interconnecting devices and passive components – Basic
test and measurement procedures – Tests

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SIST EN 61300-1:2017
– 8 – IEC 61300-1:2016  IEC 2016
IEC 61300-3 (all parts), Fibre optic interconnecting devices and passive components – Basic
test and measurement procedures – Examinations and measurements
IEC 61300-3-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-1: Examinations and measurements – Visual examination
IEC 61300-3-35, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 3-35: Examinations and measurements – Visual
inspection of fibre optic connectors and fibre-stub transceivers
IEC 61300-3-53, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 3-53: Examinations and measurements – Encircled
angular flux (EAF) measurement method based on two-dimensional far field data from step
index multimode waveguide (including fibre)
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
test
technical operation that consists of the determination of one or more characteristics of a given
product, process or service according to a specified procedure and normally consists of the
following steps:
a) preparation (where required);
b) pre-conditioning (where required);
c) initial examination and measurement (where required);
d) conditioning;
e) recovery (where required);
f) final examination and measurement.
3.1.2
device under test
DUT
interconnecting device, passive component, equipment or other item designated to be tested
3.1.3
preparation
preparing the DUT according to the manufacturer’s instructions or as specified in the relevant
specification
3.1.4
pre-conditioning
treatment of a DUT with the object of removing or partly counteracting the effects of its
previous environmental history
3.1.5
conditioning
exposure of a DUT to environmental conditions for a specified duration in order to determine
the effects of such conditions on the DUT

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SIST EN 61300-1:2017
IEC 61300-1:2016  IEC 2016 – 9 –
3.1.6
recovery
treatment of a DUT after conditioning in order that the properties of the DUT may stabilise
before measurement
3.1.7
examination
visual and/or mechanical inspection of a DUT made with or without the use of special
equipment
Note 1 to entry: Usually carried out before and after the test, and/or during the test.
3.1.8
measurement
process of obtaining one or more values that can reasonably be attributed to a quantity
[SOURCE: IEC 60050:2010, 112-04-01, modified – The adverb "experimentally" has been
removed from the definition, as well as the notes.]
3.1.9
encircled flux
EF
fraction of cumulative near-field power to the total output power as a function of radial
distance from the optical centre of the core, defined by Equation (1),
...