EN 61249-4-1:2008

SLOVENSKI STANDARD
01-september-2008
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Materials for printed boards and other interconnecting structures - Part 4-1: Sectional
specification set for prepreg materials, unclad (for the manufacture of multilayer boards) -
Epoxide woven E-glass prepreg of defined flammability
Materialien für Leiterplatten und andere Verbindungsstrukturen - Teil 4-1:
Rahmenspezifikationen für unkaschierte Prepreg-Materialien (zur Herstellung von
Mehrlagenleiterplatten) - Mit E-Glasgewebe verstärkte Epoxidharz-Prepregs mit
definierter Brennbarkeit
Matériaux pour circuits imprimés et autres structures d’interconnexion - Partie 4-1: Série
de spécifications intermédiaires pour matériaux préimprégnés, non plaqués (pour la
fabrication des circuits multicouches) - Tissu de verre époxyde préimprégné de type E
d’inflammabilité définie
Ta slovenski standard je istoveten z: EN 61249-4-1:2008
ICS:
31.180 7LVNDQDYH]MD7,9LQWLVNDQH Printed circuits and boards
SORãþH
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61249-4-1
NORME EUROPÉENNE
May 2008
EUROPÄISCHE NORM
ICS 31.180
English version
Materials for printed boards and other interconnecting structures -
Part 4-1: Sectional specification set for prepreg materials, unclad
(for the manufacture of multilayer boards) -
Epoxide woven E-glass prepreg of defined flammability
(IEC 61249-4-1:2008)
Matériaux pour circuits imprimés  Materialien für Leiterplatten
et autres structures d’interconnexion - und andere Verbindungsstrukturen -
Partie 4-1: Série de spécifications Teil 4-1: Rahmenspezifikationen
intermédiaires pour matériaux für unkaschierte Prepreg-Materialien
préimprégnés, non plaqués (zur Herstellung von
(pour la fabrication des circuits Mehrlagenleiterplatten) -
multicouches) - Mit E-Glasgewebe verstärkte
Tissu de verre époxyde préimprégné Epoxidharz-Prepregs
de type E d’inflammabilité définie mit definierter Brennbarkeit
(CEI 61249-4-1:2008) (IEC 61249-4-1:2008)

This European Standard was approved by CENELEC on 2008-04-01. 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

© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61249-4-1:2008 E
Foreword
The text of document 91/739/FDIS, future edition 1 of IEC 61249-4-1, prepared by IEC TC 91, Electronics
assembly technology, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC
as EN 61249-4-1 on 2008-04-01.
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) 2009-01-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2011-04-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61249-4-1:2008 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 60194 NOTE  Harmonized as EN 60194:2006 (not modified).
__________
- 3 - EN 61249-4-1:2008
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 Title EN/HD Year

IEC 61189-2 2006 Test methods for electrical materials, EN 61189-2 2006
interconnection structures and assemblies -
Part 2: Test methods for materials for
interconnection structures
1)
IEC 61189-3 1997 Test methods for electrical materials, printed EN 61189-3 1997
boards and other interconnection structures
and assemblies -
Part 3: Test methods for interconnection
structures (printed boards)
IEC 61249-2-7 2002 Materials for printed boards and other EN 61249-2-7 2002
interconnecting structures - + corr. September 2005
Part 2-7: Reinforced base materials, clad and
unclad - Epoxide woven E-glass laminated
sheet of defined flammability (vertical burning
test), copper-clad
2) 3)
IEC 62326-4 - Printed boards - EN 62326-4 1997
Part 4: Rigid multilayer printed boards with
interlayer connections - Sectional specification

ISO 9000 2005 Quality management systems - Fundamentals EN ISO 9000 2005
and vocabulary
ISO 11014-1 1994 Safety data sheet for chemical products - - -
Part 1: Content and order of sections

ISO 14001 2004 Environmental management systems - EN ISO 14001 2004
Requirements with guidance for use

1)
EN 61189-3 is superseded by EN 61189-3:2008, which is based on IEC 61189-3:2007.
2)
Undated reference.
3)
Valid edition at date of issue.

IEC 61249-4-1
Edition 1.0 2008-01
INTERNATIONAL
STANDARD
Materials for printed boards and other interconnecting structures –
Part 4-1: Sectional specification set for prepreg materials, unclad (for the
manufacture of multilayer boards) – Epoxide woven E-glass prepreg of defined
flammability
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
M
ICS 31.180 ISBN 2-8318-9585-5
– 2 – 61249-4-1 © IEC:2008(E)
CONTENTS
FOREWORD.3

1 Scope.5
2 Normative references .5
3 Materials and construction.5
3.1 Reinforcement.6
3.2 Epoxide resin .6
4 Properties.6
4.1 Properties related to the appearance of the prepreg .6
4.1.1 Dewetted areas (fish eyes) .6
4.1.2 Broken filaments.6
4.1.3 Distortion.6
4.1.4 Creases.6
4.1.5 Edge conditions.6
4.2 Properties related to B stage prepreg .7
4.2.1 Resin content .7
4.2.2 Treated weight.7
4.2.3 Resin flow .7
4.2.4 Scaled flow thickness .7
4.2.5 Melting viscosity .8
4.2.6 Gel time.8
4.2.7 Volatile content.8
4.3 Properties of prepregs after curing to C stage .8
4.3.1 Electric strength .8
4.3.2 Flammability .8
4.3.3 Relative permittivity and dissipation factor .9
4.3.4 Cured thickness.9
5 Delivery form .9
5.1 Rolls.9
5.2 Sheets.9
5.3 Cut panels.9
6 Quality assurance.10
6.1 Quality system.10
6.2 Responsibility for inspection .10
6.3 Qualification inspection .10
6.4 Quality conformance inspection.10
6.5 Certificate of conformance.10
6.6 Safety data sheet .10
7 Packaging and marking .10
8 Shelf life.11
9 Ordering information.11

Bibliography.

Table 1 – Flammability.9

61249-4-1 © IEC:2008(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_____________
MATERIALS FOR PRINTED BOARDS AND OTHER
INTERCONNECTING STRUCTURES –
Part 4-1: Sectional specification set for prepreg materials,
unclad (for the manufacture of multilayer boards) –
Epoxide woven E-glass prepreg of defined flammability

FOREWORD
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