SIST EN 61249-4-18:2014

SLOVENSKI STANDARD
01-marec-2014
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Materials for printed boards and other interconnecting structures - Part 4-18: Sectional
specification set for prepreg materials, unclad (for the manufacture of multilayer boards) -
Hich performance epoxide woven E-glass prepreg of defined flammability (vertical
burning test) for lead-free assembly
Matériaux pour circuits imprimés et autres structures d'interconnexion - Partie 4-18:
Série de spécifications intermédiaires pour matériaux préimprégnés, non plaqués (pour
la fabrication des cartes multicouches) - Tissu de verre époxyde préimprégné de type E
à haute performance, d'inflammabilité définie (essai de combustion verticale) pour les
assemblages sans plomb
Ta slovenski standard je istoveten z: EN 61249-4-18:2013
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 61249-4-18
NORME EUROPÉENNE
December 2013
EUROPÄISCHE NORM
ICS 31.180
English version
Materials for printed boards and other interconnecting structures -
Part 4-18: Sectional specification set for prepreg materials, unclad (for the
manufacture of multilayer boards) -
High performance epoxide woven E-glass prepreg of defined flammability
(vertical burning test) for lead-free assembly
(IEC 61249-4-18:2013)
Matériaux pour circuits imprimés et autres Materialien für Leiterplatten und andere
structures d'interconnexion - Verbindungsstrukturen -
Partie 4-18: Série de spécifications Teil 4-18: Rahmenspezifikation für
intermédiaires pour matériaux unkaschierte Prepreg-Materialien (zur
préimprégnés, non plaqués (pour la Herstellung von Mehrlagenleiterplatten) -
fabrication des cartes multicouches) - Hochwertige mit E-Glasgewebe verstärkte
Tissu de verre époxyde préimprégné de Epoxidharz-Prepregs mit definierter
type E à haute performance, Brennbarkeit (Brennprüfung mit vertikaler
d'inflammabilité définie (essai de Prüflingslage) für bleifreie
combustion verticale), pour les Bestückungstechnik
assemblages sans plomb (IEC 61249-4-18:2013)
(CEI 61249-4-18:2013)
This European Standard was approved by CENELEC on 2013-12-09. 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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61249-4-18:2013 E
Foreword
The text of document 91/1125/FDIS, future edition 1 of IEC 61249-4-18, prepared by IEC TC 91
"Electronics assembly technology" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 61249-4-18:2013.

The following dates are fixed:
(dop) 2014-09-09
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2016-12-09
• latest date by which the national
standards conflicting with the
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 61249-4-18:2013 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60194:2006 NOTE  Harmonized as EN 60194:2006 (not modified).
IEC 62326-4 NOTE  Harmonized as EN 62326-4.

- 3 - EN 61249-4-18:2013
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. 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, printed EN 61189-2 2006
boards and other interconnection structures
and assemblies -
Part 2: Test methods for materials for
interconnection structures
IEC 61249-2-39 2012 Materials for printed boards and other EN 61249-2-39 2013
interconnecting structures -
Part 2-39: Reinforced base materials clad and
unclad - High performance epoxide and non-
epoxide, woven E-glass laminated sheets of
defined flammability (vertical burning test),
copper-clad for lead-free assembly

IEC/PAS 61249-6-3 2011 Specification for finished fabric woven from - -
"E" glass for printed boards
ISO 9000 2005 Quality management systems - Fundamentals EN ISO 9000 2005
and vocabulary
ISO 11014 2009 Safety data sheet for chemical products - - -
Content and order of sections
ISO 14001 2004 Environmental management systems - EN ISO 14001 2004
Requirements with guidance for use

IEC 61249-4-18 ®
Edition 1.0 2013-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Materials for printed boards and other interconnecting structures –

Part 4-18: Sectional specification set for prepreg materials, unclad (for the

manufacture of multilayer boards) – High performance epoxide woven E-glass

prepreg of defined flammability (vertical burning test) for lead-free assembly

Matériaux pour circuits imprimés et autres structures d'interconnexion –

Partie 4-18: Série de spécifications intermédiaires pour matériaux préimprégnés,

non plaqués (pour la fabrication des cartes multicouches) – Tissu de verre

époxyde préimprégné de type E à haute performance, d'inflammabilité définie

(essai de combustion verticale), pour les assemblages sans plomb

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX N
ICS 31.180 ISBN 978-2-8322-1168-7

– 2 – 61249-4-18 © IEC:2013
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Materials and construction . 6
3.1 General . 6
3.2 Reinforcement . 7
3.3 Resin system . 7
4 Properties . 7
4.1 Properties related to the appearance of the prepreg. 7
4.1.1 General . 7
4.1.2 Dewetted areas (fish eyes) . 7
4.1.3 Broken filaments . 7
4.1.4 Distortion . 7
4.1.5 Creases . 7
4.1.6 Edge conditions . 8
4.2 Properties related to B-stage prepreg . 8
4.2.1 General . 8
4.2.2 Resin content . 8
4.2.3 Treated weight . 8
4.2.4 Resin flow . 8
4.2.5 Scaled flow thickness . 9
4.2.6 Melting viscosity . 9
4.2.7 Gel time . 9
4.2.8 Volatile content . 9
4.3 Properties related to prepreg after curing . 9
4.3.1 Electric strength. 9
4.3.2 Flammability . 9
4.3.3 Relative permittivity and dissipation factor . 10
4.3.4 Cured thickness . 10
4.3.5 Glass transition temperature (T ) . 10
g
4.3.6 Decomposition temperature (T ) . 10
d
4.3.7 Time to delamination . 10
4.3.8 Z-axis expansion . 11
5 Delivery form . 11
5.1 General . 11
5.2 Rolls . 11
5.3 Sheets . 11
5.4 Cut panels . 11
6 Quality assurance . 11
6.1 Quality system . 11
6.2 Responsibility for inspection. 12
6.3 Qualification inspection . 12
6.4 Quality conformance inspection . 12
6.5 Certificate of conformance . 12
6.6 Safety data sheet . 12

61249-4-18 © IEC:2013 – 3 –
7 Packaging and marking . 12
8 Shelf life . 13
9 Ordering information . 13
Bibliography . 14

Table 1 – Flammability, vertical burning test . 10
Table 2 – Decomposition temperature requirements . 10
Table 3 – Time to delamination requirements . 11
Table 4 – Z-axis expansion requirements . 11

– 4 – 61249-4-18 © IEC:2013
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MATERIALS FOR PRINTED BOARDS
AND OTHER INTERCONNECTING STRUCTURES –

Part 4-18: Sectional specification set for prepreg materials,
unclad (for the manufacture of multilayer boards) –
High performance epoxide woven E-glass prepreg of defined
flammability (vertical burning test) for lead-free assembly

FOREWORD
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