Bsi bs en 61300 2 26 2007

Licensed copy: Bradford University, University of Bradford, Version correct as of 21/03/2012 14:31, (c) The British Standards Institution 2012

BRITISH STANDARD

Fibre optic
interconnecting
devices and passive
components — Basic
test and measurement
procedures —
Part 2-26: Tests — Salt mist

The European Standard EN 61300-2-26:2007 has the status of a
British Standard

ICS 33.180.20

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BS EN
61300-2-26:2007


BS EN 61300-2-26:2007

Licensed copy: Bradford University, University of Bradford, Version correct as of 21/03/2012 14:31, (c) The British Standards Institution 2012

National foreword
This British Standard is the UK implementation of EN 61300-2-26:2007. It is
identical to IEC 61300-2-26:2007. It supersedes BS EN 61300-2-26:1997 which
is withdrawn.

The UK participation in its preparation was entrusted by Technical Committee
GEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic interconnecting
devices and passive components.
A list of organizations represented on this committee can be obtained on
request to its secretary.
This publication does not purport to include all the necessary provisions of a
contract. Users are responsible for its correct application.
Compliance with a British Standard cannot confer immunity from
legal obligations.

This British Standard was
published under the authority
of the Standards Policy and
Strategy Committee
on 31 August 2007

© BSI 2007

ISBN 978 0 580 54744 7

Amendments issued since publication
Amd. No.

Date

Comments


EUROPEAN STANDARD

EN 61300-2-26

Licensed copy: Bradford University, University of Bradford, Version correct as of 21/03/2012 14:31, (c) The British Standards Institution 2012

NORME EUROPÉENNE
June 2007

EUROPÄISCHE NORM
ICS 33.180.20

Supersedes EN 61300-2-26:1997

English version

Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-26: Tests Salt mist
(IEC 61300-2-26:2006)
Dispositifs d'interconnexion
et composants passifs à fibres optiques Méthodes fondamentales d'essais
et de mesures Partie 2-26: Essais Brouillard salin
(CEI 61300-2-26:2006)

Lichtwellenleiter Verbindungselemente
und passive Bauteile Grundlegende Prüf- und Messverfahren Teil 2-26: Prüfungen Salznebel
(IEC 61300-2-26:2006)

This European Standard was approved by CENELEC on 2007-05-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2007 CENELEC -

All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61300-2-26:2007 E


EN 61300-2-26:2007

–2–

Licensed copy: Bradford University, University of Bradford, Version correct as of 21/03/2012 14:31, (c) The British Standards Institution 2012

Foreword
The text of document 86B/2267/CDV, future edition 2 of IEC 61300-2-26, prepared by SC 86B, Fibre
optic interconnecting devices and passive components, of IEC TC 86, Fibre optics, was submitted to the
IEC-CENELEC parallel Unique Acceptance Procedure and was approved by CENELEC as
EN 61300-2-26 on 2007-05-01.

EN 61300-2-26:2007 supersedes EN 61300-2-26:1997.
Specific technical changes include the test conditions such as concentration, pH value and temperature
of salt solution, relative humidity of air and regulations on final measurements.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement

(dop)

2008-02-01

– latest date by which the national standards conflicting
with the EN have to be withdrawn

(dow)

2010-05-01

Annex ZA has been added by CENELEC.
__________

Endorsement notice
The text of the International Standard IEC 61300-2-26:2006 was approved by CENELEC as a European
Standard without any modification.
__________


–3–

EN 61300-2-26:2007

Licensed copy: Bradford University, University of Bradford, Version correct as of 21/03/2012 14:31, (c) The British Standards Institution 2012

CONTENTS

1

Scope ............................................................................................................................... 4

2

Normative references ....................................................................................................... 4

3

General description .......................................................................................................... 4

4

Apparatus ......................................................................................................................... 4

5

4.1 Chamber ................................................................................................................. 4
4.2 Water ...................................................................................................................... 5
4.3 Atomizer .................................................................................................................. 5
4.4 Heater ..................................................................................................................... 5
4.5 Humidifier................................................................................................................ 5
4.6 Salt mist .................................................................................................................. 5

Procedure ........................................................................................................................ 6

6

5.1 Preparation of specimens ........................................................................................ 6
5.2 Preconditioning ....................................................................................................... 6
5.3 Initial measurements ............................................................................................... 6
5.4 Conditioning ............................................................................................................ 6
5.5 Recovery ................................................................................................................. 7
5.6 Final measurements ................................................................................................ 7
Severity ............................................................................................................................ 7

7

Details to be specified ...................................................................................................... 7

Bibliography........................................................................................................................... 9
Annex ZA (normative) Normative references to international publications with their
corresponding European publications ...................................................................................10


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EN 61300-2-26:2007

–4–

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

Part 2-26: Tests – Salt mist

1

Scope

This part of IEC 61300 provides a test to determine the corrosion resistance of the metals
used in the construction of a device, and to determine if dissimilar metals have been well
finished to prevent corrosion.

2

Normative references

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.
IEC 60068-2-11, Environmental testing – Part 2: Tests − Test Ka: Salt mist
IEC 61300-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 1: General and guidance
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 61300-3-3, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-3: Examinations and measurements – Active monitoring of
changes in attenuation and in return loss

3

General description

This procedure is conducted in accordance with IEC 60068-2-11, test Ka. The specimen is
exposed to a salt mist environment within a test chamber maintained at a temperature of
35 °C.
4
4.1

Apparatus
Chamber

The chamber for this test shall be constructed of such materials that will not influence the
corrosive effects of the salt mist.
The detailed construction of the chamber, including the method of producing the mist, is
optional, provided that:
a) the conditions in the chamber are within the limits specified;
b) a sufficiently large volume with constant, homogeneous conditions (not affected by
turbulence) is available; these conditions should not be influenced by the specimens
under test;


–5–

EN 61300-2-26:2007

Licensed copy: Bradford University, University of Bradford, Version correct as of 21/03/2012 14:31, (c) The British Standards Institution 2012

c) no direct spray impinges upon the specimens under test;
d) drops of liquid accumulating on the ceiling, the walls or other parts cannot drip on the
specimens;
e) the chamber is properly vented to prevent pressure build-up and allow uniform distribution
of salt mist. The discharge end of the vent shall be protected from squalls which can

cause strong air currents in the chamber.
4.2

Water

Use distilled, demineralized or deionized water to obtain the specified humidity. No rust or
corrosion contaminates shall be imposed on the specimen by the test facility.
4.3

Atomizer

The atomizer(s) used shall be of such design and construction as to produce a finely divided,
wet, dense mist. The atomizer(s) shall be made of material that is non-reactive to the salt
solution.
4.4

Heater

A chamber heating means and control.
4.5

Humidifier

A means for humidifying the air at a temperature above the chamber temperature.
4.6

Salt mist

4.6.1
4.6.1.1

Salt solution
Concentration

The salt used for the test shall be sodium chloride (NaCl) containing, when dry, not more than
0,1 % sodium iodide and not more than 0,3 % of total impurities.
The salt solution concentration shall be (5 ± 1) % by weight.
The solution shall be prepared by dissolving (5 ± 1) parts by weight of salt in 95 parts by
weight of distilled or demineralized water.
4.6.1.2

pH value

The pH value of the solution shall be between 6,5 and 7,2, at a temperature of (35 ± 2) °C
The pH value shall be maintained within this range during conditioning; for this purpose,
diluted hydrochloric acid or sodium hydroxide may be used to adjust the pH value, provided
that the concentrations of NaCl remain within the prescribed limits.
The pH shall be measured when preparing each new batch of solution.
4.6.1.3
4.6.2

The sprayed solution shall not be re-used.
Air supply

The compressed air entering the atomizer(s) shall be essentially free from all impurities, such
as oil and dust.


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EN 61300-2-26:2007

–6–

Means shall be provided to humidify and warm the compressed air as required to meet the
operating conditions. The air pressure shall be suitable to produce a finely divided dense mist
with the atomizer(s) used.
To ensure against clogging of the atomizer by salt deposition, it is recommended that the air
have a relative humidity of at least 85 % at the point of release from the nozzle. A satisfactory
method is to pass the air in very fine bubbles through a tower containing heated water which
shall be automatically maintained at a constant level. The temperature of this water should be
at least 35 °C.
The permissible water temperature increases with increasing volume of air and with
decreasing heat insulation of the chamber and the surroundings of the chamber.
The temperature should not exceed a value above which an excess of moisture is introduced
into the chamber or a value which makes it impossible to meet the requirements for operating
temperature.

5
5.1

Procedure
Preparation of specimens

Prepare and clean the specimen in accordance with the manufacturer’s instructions.
Visually check (see IEC 61300-3-1) that the attachment of the cable to the fibre optic device
is not damaged.
5.2

Preconditioning

Pre-condition the specimen for 2 h at the standard test conditions as defined in IEC 61300-1,
unless otherwise specified in the relevant specification.
5.3

Initial measurements

Complete initial examinations and measurements on the specimen as required by the relevant
specification.
5.4

Conditioning

Conduct the procedure in accordance with IEC 60068-2-11, test Ka. The preparation of the
specimen shall be in accordance with the relevant specification. Unless otherwise specified,
the specimen shall be subjected to the test in a non-operational mode.
Stabilize the chamber and the specimen to standard atmospheric conditions. Place the
specimen in the chamber in its normal operating position including hook-ups to peripheral
equipment (when required).
Adjust the chamber temperature, humidity, salt concentration and pH to the specified severity.
Where optical measurements are required during the test, measurements shall be made at a
maximum interval of 1 h. Measurements shall be made in accordance with IEC 61300-3-3.
At the completion of the test, allow the specimen to remain in the chamber while the
temperature is gradually reduced to standard atmospheric conditions.


–7–

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5.5

EN 61300-2-26:2007

Recovery

Allow the specimen to remain under standard test conditions for 2 h, as defined in IEC 61300-1,
unless otherwise specified in the relevant specification. Clean the specimen in accordance
with the manufacturer’s instructions.

5.6

Final measurements

On completion of the test, remove all fixtures and make final measurements, as defined by the
relevant specification, to ensure that there is no permanent damage to the specimen. The
results of the final measurement shall be within the limit established in the relevant
specification.
As a minimum, the samples shall be visually examined in accordance with IEC 61300-3-1 for
the presence of corrosion and material degradation, and shall be functionally tested.

6

Severity

The severity consists of the duration of exposure. The severity shall be specified in the
relevant specification.
The following preferred severities are non-mandatory severities, which may be specified for
this procedure:
Temperature:

(35 ± 2) °C

Salt concentration:

(5 ± 1) %

pH:

between 6,5 and 7,2

Humidity:

at least 85 %

Duration
h
16
24
48
96
168
336
672

7

Details to be specified

The following details, as applicable, shall be specified in the relevant specification:

−

duration;

−

mist density;

−

specimen optically functioning or non-functioning;

−

pre-conditioning procedure;

−

recovery procedure;

−

initial examinations and measurements and performance requirements;


Licensed copy: Bradford University, University of Bradford, Version correct as of 21/03/2012 14:31, (c) The British Standards Institution 2012

EN 61300-2-26:2007

–8–

−

examinations and measurements during test and performance requirements;

−

final examinations and measurements and performance requirements;

−

deviations from test procedure;

−

additional pass/fail criteria.


–9–

EN 61300-2-26:2007

Licensed copy: Bradford University, University of Bradford, Version correct as of 21/03/2012 14:31, (c) The British Standards Institution 2012

Bibliography
IEC 61300-3-4, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-4: Examinations and measurements – Attenuation
NOTE Harmonized as EN 61300-3-4:2001 (not modified).

___________

EN 61300-2-26:2007

– 10 –

Licensed copy: Bradford University, University of Bradford, Version correct as of 21/03/2012 14:31, (c) The British Standards Institution 2012

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication

Year

IEC 60068-2-11

-

IEC 61300-1

-

IEC 61300-3-1

-

IEC 61300-3-3

-

1)
2)

Title

EN/HD

Year

1)

Environmental testing Part 2: Tests - Test Ka: Salt mist

EN 60068-2-11

1999

1)

Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures Part 1: General and guidance

EN 61300-1

2003

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

2005

1)

Fibre optic interconnecting devices and
EN 61300-3-3
passive components - Basic test and
measurement procedures Part 3-3: Examinations and measurements Active monitoring of changes in attenuation
and return loss

2003

Undated reference.
Valid edition at date of issue.

2)

2)

2)

2)


blank

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Licensed copy: Bradford University, University of Bradford, Version correct as of 21/03/2012 14:31, (c) The British Standards Institution 2012

BS EN
61300-2-26:2007

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