SIST EN 61249-4-2:2006

Materials for printed boards and other interconnecting structures -- Part 4-2: Sectional specification set for prepreg materials, unclad - Multifunctional epoxide woven E-glass prepreg of defined flammability

This part of IEC 61249 gives requirements for properties of prepreg that is mainly intended to be used as bonding sheets in connection with laminates according to IEC 61249-2-8 when manufacturing multilayer boards according to IEC 62326-4. This material may be also used to bond other types of laminates. Prepreg according to this standard is of defined flammability (vertical burning test). The flammability rating on fully cured prepreg is achieved through the use of brominated fire retardants contained as an integral part of the polymeric structure. After curing of the prepreg according to the supplier’s instructions, the glass transition temperature is defined as 150 °C minimum.

Materialien für Leiterplatten und andere Verbindungsstrukturen -- Teil 4-2: Rahmenspezifikationen für unkaschierte Prepreg-Materialien - Mit E-Glasgewebe verstärkte Prepregs auf der Basis von multifunktionalem Epoxidharz mit definierter Brennbarkeit

Matériaux pour circuits imprimés et autres structures d'interconnexion -- Partie 4-2: Série de spécifications intermédiaires pour matériaux préimprégnés, non plaqués - Tissu de verre époxyde de type E préimprégné multifonctionnel d'inflammabilité définie

This part of EN 61249 gives requirements for properties of prepreg that is mainly intended to be used as bonding sheets in connection with laminates according to EN 61249-2-8 when manufacturing multilayer boards according to EN 62326-4. This material may be also used to bond other types of laminates. Prepreg according to this standard is of defined flammability (vertical burning test). The flammability rating on fully cured prepreg is achieved through the use of brominated fire retardants contained as an integral part of the polymeric structure. After curing of the prepreg according to the supplier's instructions, the glass transition temperature is defined as 150 °C minimum.

Materiali za tiskane plošče in druge povezovalne strukture - 4-2. del: Skupina področnih specifikacij za prepreg materiale, nepokovinjene - Prepreg z E-stekleno tkanino, impregnirano z večfunkcijskim epoksidom, z določeno gorljivostjo (IEC 61249-4-2:2005)

General Information

• Status: Published
• Publication Date: 31-Jan-2006
• ICS: 31.180 - Printed circuits and boards
• Technical Committee: ITIV - Electronics assembly technology and Environmental standardization
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Feb-2006
• Due Date: 01-Feb-2006
• Completion Date: 01-Feb-2006
• Ref Project: EN 61249-4-2:2005 - Materials for printed boards and other interconnecting structures - Part 4-2: Sectional specification set for prepreg materials, unclad - Multifunctional epoxide woven E-glass prepreg of defined flammability

Standards Content (Sample)

SLOVENSKI SIST EN 61249-4-2:2006

STANDARD
februar 2006
Materiali za tiskane plošče in druge povezovalne strukture - 4-2. del: Skupina
področnih specifikacij za prepreg materiale, nepokovinjene - Prepreg z E-
stekleno tkanino, impregnirano z večfunkcijskim epoksidom, z določeno
gorljivostjo (IEC 61249-4-2:2005)
Materials for printed boards and other interconnecting structures – Part 4-2:
Sectional specification set for prepreg materials, unclad – Multifunctional epoxide
woven E-glass prepreg of defined flammability (IEC 61249-4-2:2005)
ICS 31.180 Referenčna številka
SIST EN 61249-4-2:2006(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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EUROPEAN STANDARD EN 61249-4-2
NORME EUROPÉENNE
EUROPÄISCHE NORM October 2005

ICS 31.180


English version


Materials for printed boards and other interconnecting structures
Part 4-2: Sectional specification set for prepreg materials, unclad -
Multifunctional epoxide woven E-glass prepreg of defined flammability
(IEC 61249-4-2:2005)


Matériaux pour circuits imprimés et autres Materialien für Leiterplatten und andere
structures d'interconnexion Verbindungsstrukturen
Partie 4-2: Série de spécifications Teil 4-2: Rahmenspezifikationen für
intermédiaires pour matériaux unkaschierte Prepreg-Materialien –
préimprégnés, non plaqués – Mit E-Glasgewebe verstärkte Prepregs
Tissu de verre époxyde de type E auf der Basis von multifunktionalem
préimprégné multifonctionnel Epoxidharz mit definierter Brennbarkeit
d'inflammabilité définie (IEC 61249-4-2:2005)
(CEI 61249-4-2:2005)


This European Standard was approved by CENELEC on 2005-09-01. 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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and 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


© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 61249-4-2:2005 E

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EN 61249-4-2:2005 - 2 -
Foreword
The text of document 91/526/FDIS, future edition 1 of IEC 61249-4-2, prepared by IEC TC 91,
Electronics assembly technology, was submitted to the IEC-CENELEC parallel vote and was
approved by CENELEC as EN 61249-4-2 on 2005-09-01.
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) 2006-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2008-09-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61249-4-2:2005 was approved by CENELEC as a
European Standard without any modification.
__________

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- 3 - EN 61249-4-2:2005
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 Where 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 1997 Test methods for electrical materials, EN 61189-2 1997
printed boards and other interconnection + corr. August 1997
structures and assemblies
Part 2: Test methods for materials for
interconnection structures
A1 2000 A1 2000

IEC 61249-2-8 2003 Materials for printed boards and other EN 61249-2-8 2003
interconnecting structures
Part 2-8: Reinforced base materials, clad
and unclad - Modified brominated epoxide
woven fibreglass reinforced laminated
sheets of defined flammability (vertical
burning test), copper-clad

1)
IEC 61249-6-3 - Materials for interconnection structures - -
Section 6-3: Sectional specification for
reinforcements - Part 3: Woven fibreglass
fabrics

IEC 62326-4 1996 Printed boards EN 62326-4 1997
Part 4: Rigid multilayer printed boards
with interlayer connections - Sectional
specification

ISO 9000 2000 Quality management systems - EN ISO 9000 2000
Fundamentals 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)
In preparation.

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INTERNATIONAL IEC


STANDARD 61249-4-2





First edition
2005-09


Materials for printed boards and
other interconnecting structures –
Part 4-2:
Sectional specification set for prepreg materials,
unclad – Multifunctional epoxide woven E-glass
prepreg of defined flammability


 IEC 2005  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale M
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

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– 2 – 61249-4-2  IEC:2005(E)
CONTENTS

FOREWORD.3

1 Scope.5
2 Normative references .5
3 Materials and construction.6
3.1 Reinforcement .6
3.2 Resin system.6
4 Properties.6
4.1 Properties related to the appearance of the prepreg .6
4.2 Properties related to B-stage prepreg .7
4.3 Properties related to prepreg after curing .8
5 Delivery form .9
5.1 Rolls.9
5.2 Sheets.10
5.3 Cut panels.10
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 .11
7 Packaging and marking .11
8 Shelf life .11
9 Ordering information.11

Table 1 – Flammability.9

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61249-4-2  IEC:2005(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________

MATERIALS FOR PRINTED BOARDS AND
OTHER INTERCONNECTING STRUCTURES –

Part 4-2: Sectional specification set for prepreg materials, unclad –
Multifunctional epoxide woven E-glass prepreg of defined flammability –


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.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61249-4-2 has been prepared by IEC technical committee 91:
Electronics assembly technology.
The text of this standard is based on the following documents:
FDIS Report on voting
91/526/FDIS 91/536/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

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– 4 – 61249-4-2  IEC:2005(E)
IEC 61249-4 consists of the following parts, under the general title Materials for printed
boards and other interconnecting structures – Part 4: Sectional specification set for prepreg
materials, unclad
1
Part 4-1: Epoxide woven E-glass prepreg of defined flammability
Part 4-2: Multifunctional epoxide woven E-glass prepreg of defined flammability
Part 4-5: Polyimide, modified or unmodified, woven E-glass prepreg of defined flammability
Part 4-11: Non-halogenated epoxide, woven E-glass prepreg of defined flammability
Part 4-12: Non-halogenated multifunctional epoxide woven E-glass prepreg of defined
flammability
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the
data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.

A bilingual version of this publication may be issued at a later date.

___________
1
 Under consideration.

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61249-4-2  IEC:2005(E) – 5 –
MATERIALS FOR PRINT
...