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BS EN 61249-4-1:2008

Current
Current

The latest, up-to-date edition.

Materials for printed boards and other interconnecting structures Sectional specification set for prepreg materials, unclad (for the manufacture of multilayer boards). Epoxide woven E-glass prepreg of defined flammability
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

07-31-2008

Publisher

British Standards Institution

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

Provides requirements for properties of prepreg that is mainly intended to be used as bonding sheets in connection with laminates according to IEC 61249-2-7 when manufacturing multilayer boards in line with IEC 62326-4.

IEC 61249-4-1:2008 gives requirements for properties of prepreg that is mainly intended to be used as bonding sheets in connection with laminates according to IEC 61249-2-7 when manufacturing multilayer boards in line with 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 lamination according to the supplier\'s instructions, the glass transition temperature is defined as being 120 °C minimum.

Committee
EPL/501
DevelopmentNote
Supersedes 01/205138 DC. (08/2008)
DocumentType
Standard
Pages
16
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
IEC 61249-4-1:2008 Identical
EN 61249-4-1:2008 Identical

IEC 61249-2-7:2002 Materials for printed boards and other interconnecting structures - Part 2-7: Reinforced base materials clad and unclad - Epoxide woven E-glass laminated sheet of defined flammability (vertical burning test), copper-clad
ISO 11014-1:1994 Safety data sheet for chemical products Part 1: Content and order of sections
EN 61249-2-7:2002/corrigendum:2005 MATERIALS FOR PRINTED BOARDS AND OTHER INTERCONNECTING STRUCTURES - PART 2-7: REINFORCED BASE MATERIALS CLAD AND UNCLAD - EPOXIDE WOVEN E-GLASS LAMINATED SHEET OF DEFINED FLAMMABILITY (VERTICAL BURNING TEST), COPPER-CLAD
IEC 62326-4:1996 Printed boards - Part 4: Rigid multilayer printed boards with interlayer connections - Sectional specification
EN 61189-3:2008 Test methods for electrical materials, printed boards and other interconnection structures and assemblies - Part 3: Test methods for interconnection structures (printed boards)
IEC 61189-3:2007 Test methods for electrical materials, printed boards and other interconnection structures and assemblies - Part 3: Test methods for interconnection structures (printed boards)
ISO 14001:2015 Environmental management systems — Requirements with guidance for use
IEC 60194:2015 Printed board design, manufacture and assembly - Terms and definitions
EN ISO 14001:2015 Environmental management systems - Requirements with guidance for use (ISO 14001:2015)
ISO 9000:2015 Quality management systems — Fundamentals and vocabulary
EN 62326-4:1997 Printed boards - Part 4: Rigid multilayer printed boards with interlayer connections - Sectional specification
IEC 61189-2:2006 Test methods for electrical materials, printed boards and other interconnection structures and assemblies - Part 2: Test methods for materials for interconnection structures
EN ISO 9000:2015 Quality management systems - Fundamentals and vocabulary (ISO 9000:2015)
EN 61189-2:2006 Test methods for electrical materials, printed boards and other interconnection structures and assemblies - Part 2: Test methods for materials for interconnection structures

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