IEC 60794-1-216:2025

IEC 60794-1-216 ®
Edition 1.0 2025-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical fibre cables –
Part 1-216: Generic specification – Basic optical cable test procedures –
Environmental test methods – Compound flow (drip), Method F16

Câbles à fibres optiques –
Partie 1-216: Spécification générique – Procédures fondamentales d’essais des
câbles optiques – Méthodes d’essais d’environnement – Écoulement
(égouttement) des matériaux de remplissage, méthode F16
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IEC 60794-1-216 ®
Edition 1.0 2025-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical fibre cables –
Part 1-216: Generic specification – Basic optical cable test procedures –

Environmental test methods – Compound flow (drip), Method F16

Câbles à fibres optiques –
Partie 1-216: Spécification générique – Procédures fondamentales d’essais des

câbles optiques – Méthodes d’essais d’environnement – Écoulement

(égouttement) des matériaux de remplissage, méthode F16

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.10  ISBN 978-2-8327-0371-7

– 2 – IEC 60794-1-216:2025 © IEC 2025
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General requirements. 6
5 Sample . 6
5.1 Number and type of samples. 6
5.2 Sample length . 7
5.3 Sample preparation. 7
5.4 Sample termination . 8
6 Apparatus . 8
7 Procedure . 8
8 Requirements . 9
9 Details to be specified . 9
10 Details to be reported . 9

Figure 1 – Preparation of the sample . 7

Table 1 – Values and tolerances for the length of sample . 7

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRE CABLES –
Part 1-216: Generic specification – Basic optical cable test procedures –
Environmental test methods – Compound flow (drip), Method F16

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.
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
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the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 60794-1-216 has been prepared by subcommittee 86A: Fibres and cables, of IEC technical
committee 86: Fibre optics. It is an International Standard.
This document partially cancels and replaces the second edition of IEC 60794-1-22:2017. This
edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to IEC 60794-1-
22:2017:
a) Addition of new Clause 10.
– 4 – IEC 60794-1-216:2025 © IEC 2025
The text of this International Standard is based on the following documents:
Draft Report on voting
86A/2544/FDIS 86A/2555/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, or
• revised.
INTRODUCTION
This document cancels and replaces Method F16 of IEC 60794-1-22:2017, which will be
withdrawn. It includes an editorial revision, based on the new structure and numbering system
for optical fibre cable test methods. Additionally, technical changes were implemented. The
environmental tests contained in IEC 60794-1-22:2017 will be individually numbered in the
IEC 60794-1-2xx series. Each test method is now considered to be an individual document
rather than part of a multi-test method compendium. Full cross-reference d
...