IEC 61249-2-30:2012

IEC 61249-2-30 ®
Edition 1.0 2012-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Materials for printed boards and other interconnecting structures –
Part 2-30: Reinforced base materials clad and unclad – Non-halogenated epoxide
modified cyanate ester woven glass laminate of defined flammability (vertical
burning test), copper-clad
Matériaux pour circuits imprimés et autres structures d'interconnexion –
Partie 2-30: Matériaux de base renforcés, plaqués et non plaqués – Feuille
stratifiée en tissu de verre époxyde non halogéné modifié et ester de cyanate,
d'inflammabilité définie (essai de combustion verticale), plaquée cuivre
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IEC 61249-2-30 ®
Edition 1.0 2012-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Materials for printed boards and other interconnecting structures –

Part 2-30: Reinforced base materials clad and unclad – Non-halogenated epoxide

modified cyanate ester woven glass laminate of defined flammability (vertical

burning test), copper-clad
Matériaux pour circuits imprimés et autres structures d'interconnexion –

Partie 2-30: Matériaux de base renforcés, plaqués et non plaqués – Feuille

stratifiée en tissu de verre époxyde non halogéné modifié et ester de cyanate,

d'inflammabilité définie (essai de combustion verticale), plaquée cuivre

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX S
ICS 31.180 ISBN 978-2-83220-496-2

– 2 – 61249-2-30 © IEC:2012
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Materials and construction . 6
3.1 General . 6
3.2 Resin system . 6
3.3 Reinforcement . 7
3.4 Metal foil . 7
4 Internal marking . 7
5 Electrical properties . 7
6 Non-electrical properties of the copper-clad laminate . 7
6.1 Appearance of the copper-clad sheet . 7
6.1.1 General . 7
6.1.2 Indentations (pits and dents) . 8
6.1.3 Wrinkles . 8
6.1.4 Scratches . 8
6.1.5 Raised areas . 8
6.1.6 Surface waviness . 9
6.2 Appearance of the unclad face . 9
6.3 Laminate thickness . 9
6.4 Bow and twist . 10
6.5 Properties related to the copper foil bond . 10
6.6 Punching and machining . 10
6.7 Dimensional stability . 11
6.8 Sheet sizes . 11
6.8.1 Typical sheet sizes . 11
6.8.2 Tolerances for sheet sizes . 11
6.9 Cut panels . 11
6.9.1 Cut panel sizes . 11
6.9.2 Size tolerances for cut panels . 11
6.9.3 Rectangularity of cut panels . 12
7 Non-electrical properties of the base material after complete removal of the copper
foil . 12
7.1 Appearance of the dielectric base material . 12
7.2 Flexural strength . 13
7.3 Flammability . 13
7.4 Water absorption . 13
7.5 Measling. 14
7.6 Glass transition temperature and cure factor . 14
8 Quality assurance . 14
8.1 Quality system . 14
8.2 Responsibility for inspection . 15
8.3 Qualification inspection . 15
8.4 Quality conformance inspection . 15
8.5 Certificate of conformance . 15
8.6 Safety data sheet . 15

61249-2-30 © IEC:2012 – 3 –
8.7 Packaging and marking . 15
9 Ordering information . 16
Annex A (informative) Engineering information . 17
Annex B (informative) Common laminate constructions . 19
Annex C (informative) Guideline for qualification and conformance inspection . 20
Bibliography . 21

Table 1 – Electrical properties . 7
Table 2 – Indentations . 8
Table 3 – Nominal thickness and tolerance of metal-clad laminate . 9
Table 4 – Bow and twist . 10
Table 5 – Pull-off and peel strength . 10
Table 6 – Dimensional stability . 11
Table 7 – Size tolerance for cut panels . 12
Table 8 – Rectangularity of cut panels . 12
Table 9 – Flexural strength . 13
Table 10 – Flammability . 13
Table 11 – Water absorption . 14
Table 12 – Measling. 14
Table 13 – Glass transition temperature and cure factor . 14
Table B.1 – Thickness . 19
Table C.1 – Qualification and conformance testing . 20

– 4 – 61249-2-30 © IEC:2012
INTERNATIONAL ELECTROTECHNICAL COMMISSION
______________
MATERIALS FOR PRINTED BOARDS
AND OTHER INTERCONNECTING STRUCTURES –

Part 2-30: Reinforced base materials clad and unclad –
Non-halogenated epoxide modified cyanate ester woven glass laminate
of defined flammability (vertical burning test), copper-clad

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
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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
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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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
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 61249-2-30 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
91/1051/FDIS 91/1064/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.

61249-2-30 © IEC:2012 – 5 –
A list of all parts of the IEC 61249 series, under the general title Materials for printed boards
and other interconnecting structures, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability 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.
– 6 – 61249-2-30 © IEC:2012
MATERIALS FOR PRINTED BOARDS
AND OTHER INTERCONNECTING STRUCTURES –

Part 2-30: Reinforced base materials clad and unclad –
Non-halogenated epoxide modified cyanate ester woven glass laminate
of defined flammability (vertical burning test), copper-clad

1 Scope
This part of IEC 61249 gives requirements for properties of non-halogenated epoxide modified
cyanate ester woven glass laminate of defined flammability (vertical burning test), copper-clad
in thicknesses of 0,03 mm up to 1,60 mm. The flammability rating is achieved through the use
of non-halogenated inorganic and/or organic compounds acting as fire retardants. These fire
retardants are contained as part of polymeric structure or in addition to it. The glass transition
temperature is defined to be 160 °C minimum.
Some property requirements may have several classes of performance. The class desired
should be specified on the purchase order, otherwise the default class of material may be
supplied.
2 Normative references
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.
IEC 61189-2:2006, Test methods for electrical materials, printed boards and other
interconnection structures and assemblies – Part 2: Test methods for materials and other
interconnection structures
IEC 61249-5-1:1995, Materials for interconnection structures – Part 5: Sectional specification
set for conductive foils and films with or without coatings – Section 1: Copper foils (for the
manufacture of copper-clad base materials)
IEC/PAS 61249-6-3:2011, Specification for finished fabric woven from E-glass for printed
boards
ISO 11014:2009, Safety data sheet for chemical products – Content and order of sections
3 Materials and construction
3.1 General
The sheet consists of an insulating base with metal-foil bonded to one side or both.
3.2 Resin system
Non-halogenated epoxide modified cyanate ester resulting in a laminate with a glass
transition temperature of 160 °C minimum. The maximum total halogens contained in the resin
plus reinforcement matrix is 1 500 ppm, with a maximum chlorine of 900 ppm and maximum
bromine being 900 ppm.
61249-2-30 © IEC:2012 – 7 –
Contrast agents may be added to enhance processing such as automated optical inspection
(AOI).
Its flame resistance is defined in terms of the flammability requirements of 7.3.
3.3 Reinforcement
Woven E-glass as specified in IEC/PAS 61249-6-3, woven E-glass fabric (for the manufacture
of prepreg and copper clad materials).
3.4 Metal foil
Copper as specified in IEC 61249-5-1, copper foil (for the manufacture of copper-clad
materials). The preferred foils are electrodeposited of defined ductility.
4 Internal marking
Not specified.
5 Electrical properties
The requirements for the electrical properties are shown in Table 1.
Table 1 – Electrical properties
Test method
Property Requirements
IEC 61189-2
Resistance of foil 2E12 As specified in IEC 61249-5-1
Surface resistance after damp heat while in
2E03 ≥10 000 MΩ
the humidity chamber (optional)
Surface resistance after damp heat and
2E03 ≥50 000 MΩ
recovery
Volume resistivity after damp heat while in
2E04 ≥10 000 MΩm
the humidity chamber (optional)
Volume resistivity after damp heat and
2E04 ≥50 000 MΩm
recovery
Relative permittivity after damp heat and
2E10
≤5,5
recovery at 1 MHz
Dissipation factor after damp heat and
2E10
≤0,020
recovery at 1 MHz
Electric strength(only for material
2E11 >30 kV/mm
thicknesses <0,5 mm)
Arc resistance (only for material
2E14 ≥120 s
thicknesses ≥ 0,5 mm thickness)
Dielectric breakdown (only for material
2E15 ≥40 kV
thicknesses ≥ 0,5 mm thickness)

6 Non-electrical properties of the copper-clad laminate
6.1 Appearance of the copper-clad sheet
6.1.1 General
The copper-clad face shall be substantially free from defects that may have an impact on the
material´s fitness for use for the intended purpose.

– 8 – 61249-2-30 © IEC:2012
For the following specific defects the requirements given shall apply when inspection is
carried out in accordance with IEC 61189-2, method 2M18.
6.1.2 Indentations (pits and dents)
The size of an indentation, usually the length, shall be determined and given a point value to
be used as measure of the quality, see Table 2.
Table 2 – Indentations
Size Point value for each
indentation
mm
0,13 – 0,25 1
0,26 – 0,50 2
0,51 – 0,75 4
0,76 – 1,00 7
>1,00
The total point count for any 300 mm × 300 mm area shall be calculated to determine the
indentation class of the material.
Class A 29 maximum
Class B 17 maximum
Class C 5 maximum
Class D 0
Class X To be agreed upon by user and supplier
The required indentation class of material shall be specified in the purchase order.
Indentation Class A applies unless otherwise specified.
6.1.3 Wrinkles
There shall be no wrinkles in the copper surface.
6.1.4 Scratches
Scratches deeper than 10 µm or 20 % of the nominal thickness of the foil thickness,
whichever is lower, are not permitted.
Scratches with a depth less than 5 % of the nominal thickness of the foil shall not be counted
unless this depth is 10 µm or more.
Scratches with a depth between 5 % and 20 % of the nominal thickness of the foil are
permitted to a total length of 100 mm for a 300 mm × 300 mm area.
6.1.5 Raised areas
Raised areas are usually impressions caused by defects in the press plates used during
manufacture but may also be caused by blisters or inclusions of foreign particles under the
foil.
Raised areas caused by blisters or inclusions are not permitted.

61249-2-30 © IEC:2012 – 9 –
Raised areas caused by impressions of defects in press plates are permitted to the following
extent:
Class A and X material Maximum height 15 µm and maximum length 15 mm
Class B and C material Maximum height 8 µm and maximum length 15 mm
Class D material Maximum height 5 µm and maximum length15 mm
6.1.6 Surface waviness
When examined in accordance to test method 2M12 of IEC 61189-2, the surface waviness in
both the machine and crossmachine direction shall not exceed 7 µm.
6.2 Appearance of the unclad face
The unclad face of a single-sided clad sheet shall have the natural appearance resulting from
the curing process. Small irregularities in colour are permitted. The gloss of the unclad face
shall be that given by the press plate, release film, or release foil used. Variations of gloss
due to the impact of pressure of gases released during the curing are permitted.
6.3 Laminate thickness
The laminate thickness may be ordered to include or exclude the copper foil contribution as
specified in the purchase order. As a general rule, laminates less than 0,8 mm are measured
excluding copper, and laminates greater or equal to 0,8 mm are measured including copper.
If the copper-clad laminate is tested in accordance with test method 2D01 of IEC 61189-2, the
thickness shall not depart from the nominal thickness by more than the appropriate value
shown in Table 3. The fine tolerances shall apply unless the other tolerances are ordered.
Table 3 – Nominal thickness and tolerance of metal-clad laminate
Nominal thickness Nominal thickness Tolerance requirement
excluding metal foil including metal foil
± mm
(material intended (material intended for single
for mutilayer boards) or double sided boards)
Coarse Fine Extra fine
mm mm
0,03 0,02 0,01
≥0,03 ≤ 0,10
0,04 0,03 0,02
>0,10 ≤ 0,15
0,05 0,04 0,03
>0,15 ≤ 0,30
0,08 0,05 0,04
>0,30 ≤ 0,50
0,09 0,06 0,05
>0,50 ≤ 0,80
0,13 0,09 0,07
>0,80 ≤ 1,00 ≥0,80 ≤ 1,00
0,17 0,11 0,08
>1,00 ≤ 1,30 >1,00 ≤ 1,30
0,20 0,13 0,10
>1,30 ≤ 1,60
The thicknesses and tolerances do not apply to the outer 25 mm of the trimmed sheet or the
outer 13 mm of the cut panel as manufactured and delivered by the supplier. At no point shall
the thickness vary from the nominal by a value greater than 125 % of the specified tolerance.

– 10 – 61249-2-30 © IEC:2012
6.4 Bow and twist
When the copper-clad laminate is tested in accordance with test method 2M01of IEC 61189-2,
the bow and twist shall not exceed the values given in Table 4.
Table 4 – Bow and twist
Requirements
Nominal Panel dimension
%
Test method
Property thickness longest side
IEC 61189-2
Copper foil on Copper foil on
mm mm
one side both sides
Bow and 2M01
≥0,8 ≤ 1,3 ≤350 ≤2,0 ≤1,5
twist
>350 ≤ 500 ≤1,8 ≤1,3
>500 ≤1,5 ≤1,0
>1,3 ≤ 1,6 ≤350 ≤1,5 ≤1,0
>350 ≤ 500 ≤1,3 ≤0,8
>500 ≤1,0 ≤0,5
NOTE The requirements for bow and twist apply only to one-sided copper-clad laminates with maximum foil
thickness of 105 µm (915 g/m ) and double-sided copper-clad laminates with maximum foil thickness difference of
70 µm (610 g/m ).
Requirements for laminates with copper foil configurations beyond these limits should be subject to
agreement between purchaser and supplier.

6.5 Properties related to the copper foil bond
Pull-off and peel strength requirements are shown in Table 5. These requirements apply to
copper foil with a normal profile depth. In the case of low or very low profile copper foil, the
requirements shall be at least 50 % of that shown in Table 5 as a minimum.
Table 5 – Pull-off and peel strength
Test method
Property Requirements
IEC 61189-2
Pull-off strength 2M05 ≥20 N
Thickness of the copper foil
≤12 µm 18 µm 35 µm ≥70 µm
2 2 2 2
(101 g/m ) (152 g/m ) (305 g/m ) (610 g/m )
Peel strength after dry 2M15
≥0,3 N/mm ≥0,4 N/mm ≥0,5 N/mm ≥0,7 N/mm
o
heat 150 C
No blistering nor delamination
Peel strength at high 2M17
temperature
Temperature 125 °C ≥0,3 N/mm ≥0,4 N/mm ≥0,5 N/mm ≥0,6 N/mm
(optional)
Temperature 260 °C Not specified Not specified Not specified Not specified
(optional)
In case of difficulty due to breakage of the foil or reading range of the force measuring device, the measurement of
peel strength at high temperature may be carried out using conductor widths of more than 3 mm.

6.6 Punching and machining
Punching is not applicable. The laminate shall, in accordance with the manufacturer’s
recommendations, be capable of being sheared or drilled. Delamination at the edges due to

61249-2-30 © IEC:2012 – 11 –
the shearing process is permissible, provided that the depth of delamination is not larger than
the thickness of the base material. Delamination at the edges of drilled holes due to the
drilling process is not permissible. Drilled holes shall be capable of being through-plated with
no interference from any exudations into the hole.
6.7 Dimensional stability
When specimens are tested in accordance to IEC 61189-2, Method 2X02, the observed
tolerance shall be as specified in Table 6. The nominal dimensional stability value shall be as
agreed upon between user and vendor. The tolerance range around the ageed upon nominal
value shall be Class B, unless otherwise specified on the purchase order.
The choice of the glass fabrics in the construction of the laminate has a significant impact on
dimensional stability. Examples of typical constructions used in printed board applications can
be found in Annex B. Annex B is not a construction requirement table but is presented for
engineering information only.
Table 6 – Dimensional stability
Test method Tolerances
Property Class
IEC 61189-2 ppm
Dimensional stability 2X02 A ±500
B
±300
C ±100
X As agreed upon between user and supplier

6.8 Sheet sizes
6.8.1 Typical sheet sizes
Sheet sizes are matters of agreement between purchaser and supplier. However, the
recommended sizes are listed below:
– 915 mm × 1 220 mm;
– 1 065 mm × 1 155 mm;
– 1 065 mm × 1 280 mm;
– 1 000 mm × 1 000 mm;
– 1 000 mm × 1 200 mm.
6.8.2 Tolerances for sheet sizes
+20
The size of sheet delivered by the supplier shall not deviate by more than mm from the
− 0
ordered size.
6.9 Cut panels
6.9.1 Cut panel sizes
Cut panel sizes shall be, when delivered, in accordance with the purchaser’s specification.
6.9.2 Size tolerances for cut panels
For panels cut to size according to the purchaser’s specification, the following tolerances for
length and width shall apply as shown in Table 7. Tolerances indicated as normal shall be in
effect unless otherwise specified in the purchasing specification.

– 12 – 61249-2-30 © IEC:2012
Table 7 – Size tolerance for cut panels
Panel size Tolerances
± mm
mm
Normal Close
2,0 0,5
≤300
>300 ≤ 600 2,0 0,8
2,0 1,6
>600
NOTE The specified tolerances include all deviations caused by cutting the panels.
6.9.3 Rectangularity of cut panels
For panels cut to size according to the purchaser’s specification, the following requirements
for rectangularity shall apply, as shown in Table 8. Tolerance indicated as normal shall be in
effect unless otherwise specified in the purchasing specification.
Table 8 – Rectangularity of cut panels
Requirement
Test method
mm/m
Property
IEC 61189-2
Normal Close
Rectangularity of cut panels 2M23
≤3 ≤2
7 Non-electrical properties of the base material after complete removal of the
copper foil
7.1 Appearance of the dielectric base material
The etched specimens shall be inspected to verify that no surface or subsurface imperfections
of the dielectric material exceed those shown below. The specimens shall be inspected using
an optical aid apparatus which provides a minimum magnification of 4X.
Referee inspection shall be conducted at 10X magnification. Lighting conditions of inspection
shall be appropriate to the material under inspection or as agreed upon between user and
supplier.
Surface and subsurface imperfections (such as weave texture, resin starvation, voids, foreign
inclusions) shall be acceptable, provided that the imperfections meet the following:
– the reinforcement fibres are not cut or exposed;
– the foreign inclusions are not conductive. Metallic inclusions are not acceptable;
– the imperfections do not propagate as a result of thermal stress;
– the foreign inclusions are translucent;
– opaque foreign fibres are less than 15 mm in length and average no more than one
occurrence per 300 mm × 300 mm area;
– opaque foreign inclusions other than fibres shall not exceed 0,50 mm. Opaque foreign
inclusions less than 0,15 mm shall not be counted. Opaque foreign inclusions between
0,50 mm and 0,15 mm shall average no more than two spots per 300 mm × 300 mm area;
– voids (sealed voids or surface voids) have a longest dimension less than 0,075 mm and
there should not be more than three voids in a 3,5 mm diameter circle.

61249-2-30 © IEC:2012 – 13 –
7.2 Flexural strength
When the laminate is tested in accordance with IEC 61189-2, method 2M20, the flexural
strength shall be as shown in Table 9.
Table 9 – Flexural strength
Test method
Property Requirement
IEC 61189-2
Flexural strength: 2M20
Length direction
≥300 N/mm
Cross-direction
≥200 N/mm
(applicable to specimens ≥1,0 mm in
nominal thickness)
Flexural strength:
Elevated temperature(150 °C)
Length direction ≥200 N/mm
(applicable to specimens ≥1,0 mm in

nominal thickness)
7.3 Flammability
When the laminate is tested in accordance with method 2C08 (thickness ≥0,03mm ≤ 0,3 mm)
or method 2C06 (thickness >0,3 ≤ 1,6 mm) of IEC 61189-2, the flammability shall be as shown
in Table 10. Flammability ratings other than those listed in Table 10 may be used, as agreed
upon between user and supplier.
The performance labelled V-0 shall be in effect, unless otherwise noted on the purchase
order.
Table 10 – Flammability
Requirements
Test method
Property Designation
IEC 61189-2
V-0 V-1
Flammability: 2C06
Flaming combustion time after each application
≤10 s ≤30 s
of the flame for each test specimen

Total flaming combustion time for the 10 flame
≤50 s ≤250 s
applications for each set of five specimens

Glowing combustion time after the second
≤60 s
≤30 s
removal of the test flame
Flaming or glowing combustion up to the
None None
holding clamp
Dripping flaming particles that ignite the tissue
None None
paper
7.4 Water absorption
When the laminate is tested in accordance with IEC 61189-2, method 2N02, the maximum
water absorption shall be as shown in Table 11.

– 14 – 61249-2-30 © IEC:2012
Table 11 – Water absorption
Test method Thickness Requirements
Property
IEC 61189-2 mm %
Water absorption 2N02 ≤3,00
≥0,03 ≤ 0,20
>0,20 ≤ 0,30 ≤1,60
>0,30 ≤ 0,40 ≤1,20
>0,40 ≤ 0,50 ≤1,10
>0,50 ≤ 0,60 ≤1,00
>0,60 ≤ 0,80 ≤0,90
>0,80 ≤ 1,00 ≤0,70
>1,00 ≤ 1,30 ≤0,60
>1,20 ≤ 1,60 ≤0,50
7.5 Measling
When the laminate is tested in accordance with IEC 61189-2, method 2N01, the presence of
measles allowed shall be as shown in Table 12.
Table 12 – Measling
Test method
Property Requirements
IEC 61189-2
Measling 2N01 No measling on three specimens. If one out of three
specimens fails, the test has to be repeated.
No measling on three specimens of the second test is
permitted.
No blistering nor delamination on any of the three
specimens is permitted.
7.6 Glass transition temperature and cure factor
The requirements for glass transition temperature and cure factor are found in Table 13.
Table 13 – Glass transition temperature and cure factor
Test method
Property Requirements
IEC 61189-2
Glass transition temperature 2M11
≥160 °C
Cure factor 2M03 Not specified

8 Quality assurance
8.1 Quality system
The supplier shall operate a quality system, ISO 9000 or similar, to support quality
conformance inspection.
The supplier shall operate a management system for environmental control, ISO 14001 or
similar, to support environmental considerations.

61249-2-30 © IEC:2012 – 15 –
8.2 Responsibility for inspection
The supplier is responsible for all inspections of the manufactured material. The purchaser or
an appointed third party may audit this inspection.
8.3 Qualification inspection
Laminates furnished under this specification shall be qualified. Qualification testing shall be
performed to demonstrate the manufacturer’s ability to meet the requirements of this
standard. Qualification testing shall be conducted at a laboratory compliant with IEC
laboratory requirements. A list of the normal qualification tests can be found in Annex C. The
manufacturer shall retain a data file which supports the claim that the materials meet this
specification and shall be readily available for review upon request.
8.4 Quality conformance inspection
The supplier shall operate a quality plan to ensure product conformance to this standard.
Such a quality plan, when appropriate, should utilize statistical methods rather than lot-by-lot
inspection. It is the responsibility of the supplier, based on the quality plan, to determine the
frequency of test to ensure conforming products. In the absence of a quality plan or
supporting data, the testing regime shall be as outlined in Annex C.
A combination of the following techniques may be used to show compliance with the
requirements which can be used to reduce the frequency of testing. The data supporting the
reduction of testing frequency shall be available for review upon request.
− In process parameter control
− In process inspection
− Periodic final inspection
− Final lot inspection
8.5 Certificate of conformance
The supplier shall, on request from the purchaser, issue a certificate of conformance to this
standard in electronic or paper format.
8.6 Safety data sheet
A safety data sheet in accordance with ISO 11014 shall be available for products
manufactured and delivered in compliance with this standard.
8.7 Packaging and marking
Unless otherwise specified in the purchase order, laminate sheets shall be marked with the
manufacturer's designation, nominal thickness, copper cladding, and lot number. Marking
shall remain legible during normal handling but be readily removable prior to use of the
material.
Cut panels shall be identified by marking on the package only.
Sheets or cut panels of laminates comprised of asymmetric copper cladding shall be marked
on the side of heaviest copper weight.
Sheets and cut panels shall be packaged in a manner which will provide adequate protection
against corrosion, deterioration and physical damage during shipment and storage.
Packages of sheets and cut panels shall be marked in a manner to clearly identify the
contents.
– 16 – 61249-2-30 © IEC:2012
9 Ordering information
Order shall include the following details:
a) reference to this standard;
b) type of material (see Clause 1 and 7.3);
c) size, thickness and copper cladding;
d) class of indentations (see 6.1.2);
e) class of raised areas (see 6.1.5);
f) class of thickness tolerance (see 6.3);
g) class of dimensional stability (see 6.7);
h) class of panel size tolerance (see 6.9.2);
i) class of flammability (see 7.3); and
j) request for certification, if applicable (see 8.5).

61249-2-30 © IEC:2012 – 17 –
Annex A
(informative)
Engineering information
A.1 General
Information in this annex does not detail material property requirements. The information is
intended as a general guideline for design and engineering purposes only. If specific
information is required by the user, the supplier of the actual material to this standard shall be
contacted for that specific engineering information. Users of this standard are encouraged to
supply additional engineering information to be included in future revisions to this annex.
Materials according to this standard are expected to show the following typical data for the
properties listed.
A.2 Chemical properties
• Resistance against chemicals
A.3 Electrical properties
• Comparative tracking index (175 – 250) V
A.4 Flammability properties
• Needle flame test
• Oxygen index (50 – 80) %
A.5 Mechanical properties
• Compressive strength (flatwise)
• Compressive strength (edgewise)
• Hardness at room temperature
4 2
• Modulus of elasticity, flexural (warp) 1,9 × 10 N/mm
4 2
• Modulus of elasticity, flexural (weft) 1,5 × 10 N/mm
4 2
• Modulus of elasticity, tensile (warp) 1,7 × 10 N/mm
4 2
N/mm
• Modulus of elasticity, tensile (weft) 1,4 × 10
• Poisson’s ratio 0,17 – 0,21
• Shear strength
– 18 – 61249-2-30 © IEC:2012
• Young’s modulus (25 – 30) GPa
A.6 Physical properties
• Density (1,80 – 2,20) g/cm
A.7 Thermal properties
• Coefficient of thermal expansion ( • Coefficient of thermal expansion (>Tg) 200 ppm/°C
• Specific heat capacity
• Thermal conductivity 0,7 – 0,9 W/(m°C)
• UL temperature index (mechanical) ― °C (now approving)
• UL temperature index (electrical) ― °C (now approving)
• Maximum operating temperature (MOT) ― °C (now approving)

61249-2-30 © IEC:2012 – 19 –
Annex B
(informative)
Common laminate constructions
Information in this annex does not detail requirements for constructions for specific
thicknesses, see Table B.1. The information is intended as a general guideline for design and
engineering purposes only. Other constructions with superior performance properties may be
available commercially for any given thickness. If specific construction information is required
by the user, the supplier of the actual material to this standard shall be contacted for that
specific construction information.
Table B.1 – Thickness
Nominal thickness Common construction
mm
0,03 1 027
0,04
2 × 1 015
0,05
2 × 1 027
0,06
2 × 1 027
0,10 2 116
0,10
2 × 1 078
0,15 1 504
0,15
3 × 1 078
0,20 2 × 2 116
0,20
4 × 1 078
0,25 2 116/1 078/2 116
0,30
3 × 2 116
0,40
4 × 2 116
0,45
2 × 2 116/1 078/2 × 2 116
0,5
5 × 2 116
0,6 6 × 2 116
0,7
7 × 2 116
0,8
8 × 2 116
0,9
9 × 2 116
1,0
10 × 2 116
1,1 11 × 2 116
1,2
12 × 2 116
1,3
13 × 2 116
1,4
14 × 2 116
1,5
15 × 2 116
1,6 16 × 2 116
NOTE Prepreg made from a specific style of glass used in different
constructions may have different resin contents.

– 20 – 61249-2-30 © IEC:2012
Annex C
(informative)
Guideline for qualification and conformance inspection

Information in this annex does not represent requirements for qualification and conformance
testing. The Manufacturers’ Quality System shall define the actual qualification and
conformance testing for materials supplied to this standard. Test data and test summaries
shall be available to support the qualification and conformance testing s
...