IEC 60794-1-309:2023

IEC 60794-1-309
®

Edition 1.0 2023-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Optical fibre cables –
Part 1-309: Generic specification – Basic optical cable test procedures – Cable
element test methods – Bleeding and evaporation of filling or flooding
compounds, Method G9

Câbles à fibres optiques –
Partie 1-309: Spécification générique – Procédures fondamentales d’essai des
câbles optiques – Méthodes d’essai des éléments de câble – Exsudation et
évaporation des composés de remplissage ou d’étanchéité, Méthode G9

IEC 60794-1-309:2023-04(en-fr)

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IEC 60794-1-309

®


Edition 1.0 2023-04




INTERNATIONAL



STANDARD




NORME


INTERNATIONALE











Optical fibre cables –

Part 1-309: Generic specification – Basic optical cable test procedures – Cable

element test methods – Bleeding and evaporation of filling or flooding

compounds, Method G9



Câbles à fibres optiques –


Partie 1-309: Spécification générique – Procédures fondamentales d’essai des

câbles optiques – Méthodes d’essai des éléments de câble – Exsudation et

évaporation des composés de remplissage ou d’étanchéité, Méthode G9











INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 33.180.10 ISBN 978-2-8322-6852-0




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

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

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– 2 – IEC 60794-1-309:2023 © IEC 2023
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General requirements . 5
5 Method G9: Bleeding and evaporation . 5
5.1 Object . 5
5.2 Sample . 6
5.3 Apparatus . 6
5.4 Procedure . 6
5.5 Requirements . 7
5.6 Details to be specified . 7
5.7 Details to be reported . 7

Figure 1 – Bleeding and evaporation test set-up . 6

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IEC 60794-1-309:2023 © IEC 2023 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

OPTICAL FIBRE CABLES –

Part 1-309: Generic specification – Basic optical cable test procedures –
Cable element test methods – Bleeding and evaporation of filling
or flooding compounds, Method G9

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.
IEC 60794-1-309 has been prepared by subcommittee 86A: Fibres and cables, of IEC technical
committee 86: Fibre optics. It is an International Standard.
This first edition of IEC 60794-1-309 cancels and replaces method G9 of the second edition of
IEC 60794-1-23 published in 2019.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the optical cable element test methods contained in IEC 60794-1-23:2019 will now be
individually numbered in the IEC 60794-1-3xx series. Each test method is now considered
to be an individual document rather than part of a multi-test method compendium. Full cross-
reference details are given in IEC 60794-1-2;
b) the scope is broadened so that the test method is also applicable for flooding compounds;
c) the cover of the test set-up is cancelled.

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– 4 – IEC 60794-1-309:2023 © IEC 2023
The text of this International Standard is based on the following documents:
Draft Report on voting
86A/2305/FDIS 86A/2321/RVD

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 International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 60794 series, published under the general title Optical fibre cables,
can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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IEC 60794-1-309:2023 © IEC 2023 – 5 –
OPTICAL FIBRE CABLES –

Part 1-309: Generic specification – Basic optical cable test procedures –
Cable element test methods – Bleeding and evaporation of filling
or flooding compounds, Method G9



1 Scope
This part of IEC 60794 describes the test procedures to be used in establishing uniform
requirements for optical fibre cable elements, filling compounds or flooding compounds, for the
environmental property-bleeding and evaporation.
This document applies to optical fibre cables for use with telecommunication equipment and
devices employing similar techniques, and to cables having a combination of both optical fibres
and electrical conductors.
NOTE Throughout the document, the wording "optical cable" can also include optical fibre units, microduct fibre
units, etc.
2 Normative references
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.
IEC 60794-1-2, Optical fibre cables – Part 1-2: Generic specification – Basic optical cable test
procedures – General guidance
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
4 General requirements
IEC 60794-1-2 is the reference guide to test methods of all types. It shall be considered for
general requirements and definitions.
5 Method G9: Bleeding and evaporation
5.1 Object
The purpose of this test is to measure at high temperature the bleeding or evaporation, or both,
of filling compounds or flooding compounds used in optical fibre cables.

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– 6 – IEC 60794-1-309:2023 © IEC 2023
5.2 Sample
The filling or flooding compound material intended to be used in contact with optical fibres shall
be prepared with a sufficient amount to perform the test.
5.3 Apparatus
The apparatus consists of:
a) an electric heating cabinet with natural ventilation,
b) an analytical balance with an error limit G = 0,1 mg, and
c) the test set-up (see Figure 1), consisting of the following:
2
1) a cone, nickel, gauze, 60 mesh (holes: 5,6 per mm ; wire diameter: 0,19 mm; opening:
0,28 mm), with a wire handle;
NOTE Alternatively the cone can consist of stainless steel (60 mesh, opening 0,25 mm) and the solder
width can be more than 1 mm, provided it is proved that the results are not significantly different from the
first one.
2) a beaker, tall-form, without a spout, 200 ml;
3) a metal rod, with a length slightly larger than the diameter of the beaker top;
4) a desiccator.
Dimensions in millimetres
...