Bsi bs en 03026 1994 (2000)

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BRITISH STANDARD AEROSPACE SERIES

Test method for dry
film lubricants —
Corrosion test on steels
specimens

The European Standard EN 3026:1994 has the status of a
British Standard

UDC 621.892:620.193:669.14:629.7

BS EN
3026:1994


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BS EN 3026:1994

This British Standard, having
been prepared under the
direction of the Aerospace
Standards Policy Committee,
was published under the
authority of the Standards
Board and comes into effect on

15 April 1994
© BSI 01-2000

Cooperating organizations
The European Committee for Standardization (CEN), under whose supervision
this European Standard was prepared, comprises the national standards
organizations of the following countries:
Austria
Belgium
Denmark
Finland
France
Germany
Greece
Iceland
Ireland
Italy
Luxembourg
Netherlands
Norway
Portugal
Spain
Sweden
Switzerland
United Kingdom

Oesterreichisches Normungsinstitut
Institut belge de normalisation
Dansk Standardiseringsraad
Suomen Standardisoimisliito, r.y.

Association franỗaise de normalisation
Deutsches Institut fỹr Normung e.V.
Hellenic Organization for Standardization
Technological Institute of Iceland
National Standards Authority of Ireland
Ente Nazionale Italiano di Unificazione
Inspection du Travail et des Mines
Nederlands Normalisatie-instituut
Norges Standardiseringsforbund
Instituto Portuguès da Qualidade
Asociación Espola de Normalización y Certificación
Standardiseringskommissionen i Sverige
Association suisse de normalisation
British Standards Institution

Amendments issued since publication
Amd. No.

Date

Comments

The following BSI references
relate to the work on this
standard:
Committee reference ACE/44
Draft for comment 90/75756 DC
ISBN 0 580 22401 5

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BS EN 3026:1994

Contents
Cooperating organizations
National foreword
Foreword
Text of EN 3026
National annex NA (informative) Committees responsible
National annex NB (informative) Cross-references

Page
Inside front cover
ii
2
3
Inside back cover
Inside back cover

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© BSI 01-2000

i

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BS EN 3026:1994

National foreword
This British Standard has been prepared under the direction of the Aerospace
Standards Policy Committee and is the English language version of
EN 3026:1994 Aerospace series — Test method for dry-film lubricants. Corrosion
test on steels specimens, published by the European Committee for
Standardization (CEN).
EN 3026 was produced as a result of international discussion in which the
United Kingdom took an active part.
A British Standard does not purport to include all the necessary provisions of a
contract. Users of British Standards are responsible for their correct application.
Compliance with a British Standard does not of itself confer immunity
from legal obligations.

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Summary of pages
This document comprises a front cover, an inside front cover, pages i and ii,
the EN title page, pages 2 to 4, an inside back cover and a back cover.
This standard has been updated (see copyright date) and may have had
amendments incorporated. This will be indicated in the amendment table on the
inside front cover.
© BSI 01-2000

ii

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EUROPEAN STANDARD

EN 3026:1994

NORME EUROPÉENNE
January 1994

EUROPÄISCHE NORM
UDC 621.892:620.193:669.14:629.7

Descriptors: Aircraft industry, lubricants, solids, films, corrosion tests, test specimen, steels

English version

Aerospace series
Test method for dry film lubricants
Corrosion test on steels specimens

Série aérospatiale —
Méthode d’essai pour films
lubrifiants solides —
Essai de corrosion sur éprouvettes en acier

Luft- und Raumfahrt —

Prüfverfahren für
Trockenschmiermittelfilme —
Korrosionsprüfung an Proben aus Stahl

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This European Standard was approved by CEN on 1994-01-06. CEN members
are bound to comply with the CEN 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
CEN 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 CEN member into its own language and notified to the
Central Secretariat has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,
Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and
United Kingdom.

CEN
European Committee for Standardization
Comité Européen de Normalisation
Europäisches Komitee für Normung
Central Secretariat: rue de Stassart 36, B-1050 Brussels
© 1994 Copyright reserved to CEN members

Ref. No. EN 3026:1994 E

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EN 3026:1994

Contents

Foreword
This European Standard has been prepared by the
European Association of Aerospace Manufacturers
(AECMA).
After enquiries and votes carried out in accordance
with the rules of this Association, this Standard
has successively received the approval of the
National Association and the Official Services of
the member countries of AECMA, prior to its
presentation to CEN.
This standard was submitted for Formal Vote, and
the result was positive.
This European Standard shall be given the status
of a national standard, either by publication of
an identical text or by endorsement, at the latest
by July 1994, and conflicting national standards
shall be withdrawn at the latest by July 1994.
According to the CEN/CENELEC Internal
Regulations, the following countries are bound
to implement this European Standard: Austria,
Belgium, Denmark, Finland, France, Germany,

Greece, Iceland, Ireland, Italy, Luxembourg,
Netherlands, Norway, Portugal, Spain, Sweden,
Switzerland, United Kingdom.

Foreword
1
Scope
2
Normative references
3
Specimens and test equipment
4
Procedure
5
Expression of results
6
Test report

Page
2
3
3
3
3
3
3

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2

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EN 3026:1994

1 Scope
This standard specifies a test method to verify
that the dry film lubricant has no corrosive effect
on steels.

2 Normative references
This European Standard incorporates by dated
or undated reference, provisions from other
publications. These normative references are
cited at the appropriate places in the text and the
publications are listed hereafter. For dated
references, subsequent amendments to or revisions
of any of these publications apply to this European
Standard only when incorporated in it by
amendment or revision. For undated references the
latest edition of the publication referred to applies.
EN 2491, Aerospace series — Molybdenum
disulphide dry film lubricants applied to fasteners1).
EN 3021, Aerospace series — Molybdenum

disulphide dry lubricants to be applied as a film —
Technical specification1).
EN 3032, Aerospace series — Test method for dry
film lubricants — Thickness measurement.

A container with a lid, 2/3 filled with distilled water,
or any other equivalent equipment to meet the
requirements of clause 4.

4 Procedure
Degrease the specimens with an appropriate solvent
and dry them.
Apply a dry film lubricant to EN 2491, to the
polished surface of each specimen immediately after
degreasing. Verify to EN 3032 that the thickness
meets the requirements of EN 3021.
Place the specimens in a humid
atmosphere (95 ± 3) % at (23 ± 2) °C for 30 h.

5 Expression of results
Examine the specimens visually. Any
discolouration, pits or any other sign of corrosion,
indicate that the dry film lubricant has a corrosive
effect.

6 Test report
It shall include the following:
— reference to this standard;
— film designation to EN 3021;
— application method to EN 2491;

— curing conditions;
— visual inspection results.

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3 Specimens and test equipment

Three specimens in 0,18 % (nominal) carbon steel
of approximately 75 mm × 150 mm × 3 mm,
polished on one surface to obtain a surface
roughness Ra = 0,15 4m to 0,3 4m.

1) In

preparation at the date of publication of this standard

© BSI 01-2000

3


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4

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blank

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BS EN 3026:1994

National annex NA (informative)
Committees responsible
The United Kingdom participation in the preparation of this European Standard was entrusted by
the Aerospace Standards Policy Committee (ACE/-) to Technical Committee ACE/44 upon which the
following bodies were represented:
Aluminium Finishing Association
Metal Finishing Association
Ministry of Defence
National Centre of Tribology
Oil and Colour Chemists’ Association
Paintmakers’ Association of Great Britain Ltd.
Society of British Aerospace Companies Limited

National annex NB (informative)
Cross-references
The British Standards corresponding to the European Standards referred to in the text are identical
in number and title with those given in clause 2, with the exception of EN 2491 and EN 3021 for which
no corresponding British Standards exist.

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© BSI 01-2000

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BS EN
3026:1994

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