EN 14598-3:2005

SLOVENSKI STANDARD
01-julij-2005
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Reinforced thermosetting moulding compounds - Specification for Sheet Moulding
Compound (SMC) and Bulk Moulding Compound (BMC) - Part 3: Specific requirements
Verstärkte härtbare Formmassen - Spezifikation für Harzmatten (SMC) und
faserverstärkte Pressmassen (BMC) - Teil 3: Spezifische Anforderungen
Mélanges a mouler thermodurcissables renforcés - Spécification pour mats
préimprégnés (SMC) et mélanges a mouler en masse (BMC) - Partie 3 : Exigences
spécifiques
Ta slovenski standard je istoveten z: EN 14598-3:2005
ICS:
83.120 2MDþDQLSROLPHUL Reinforced plastics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 14598-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2005
ICS 83.120
English version
Reinforced thermosetting moulding compounds - Specification
for Sheet Moulding Compound (SMC) and Bulk Moulding
Compound (BMC) - Part 3: Specific requirements
Mélanges à mouler thermodurcissables renforcés - Verstärkte härtbare Formmassen - Spezifikation für
Spécification pour mats préimprégnés (SMC) et mélanges Harzmatten (SMC) und faserverstärkte Pressmassen
à mouler en masse (BMC) - Partie 3 : Exigences (BMC) - Teil 3: Spezifische Anforderungen
spécifiques
This European Standard was approved by CEN on 21 February 2005.
CEN 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 CEN 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 CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies 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.
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EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14598-3:2005: E
worldwide for CEN national Members.

Contents
Page
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 Requirements.5
4.1 General.5
4.2 Type and content of filler/reinforcement.5
4.3 Recycling .5
4.4 Property data.5
Bibliography .20

Foreword
This document (EN 14598-3:2005) has been prepared by Technical Committee CEN/TC 249 “Plastics”, the
secretariat of which is held by IBN.
This European Standard shall be given the status of a national standard, either by publication of an identical text or
by endorsement, at the latest by October 2005, and conflicting national standards shall be withdrawn at the latest
by October 2005.
EN 14598 consists of the following parts, under the general title Reinforced thermosetting moulding compounds –
Specification for Sheet Moulding Compound (SMC) and Bulk Moulding Compound (BMC)
 Part 1: Designation
 Part 2: Methods of test and general requirements
 Part 3: Specific requirements
This document includes a Bibliography.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: 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.
1 Scope
This part of EN 14598 specifies the requirements for physical and chemical properties of Sheet moulding
Compounds (SMC) and Bulk Moulding Compound (BMC) and compression or injection moulded specimens. The
selection in this part is limited to those materials the composition and properties of which are significantly different.
Furthermore the selection is limited to those materials which are of more general technical and/or economical
importance.
The properties which are used for the characterization of the moulding compounds, the test methods and the test
conditions are based on Part 2 of this document. The list of properties is selected, initially, from those general test
methods found in EN ISO 10350-2, Plastics - Acquisition and presentation of comparable single-point data –
Part 2: Long-fibre-reinforced plastics (ISO 10350-2:2001).
The moulding compounds are divided into types corresponding to their composition and properties. The
designation of the types of moulding compounds is based on Part 1 - Designation of this document.
2 Normative references
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.
EN 60695-11-10, Fire hazard testing – Part 11-10: Test flames – 50 W horizontal and vertical flame test methods
(IEC 60695-11-10:1999)
EN 60707, Flammability of solid non-metallic materials when exposed to flame sources – List of test methods (IEC
60707:1999)
EN ISO 295, Plastics - Compression moulding of test specimens of thermosetting materials. (ISO 295:2004)
EN ISO 12114, Fibre-reinforced plastics - Thermosetting moulding compounds and prepregs - Determination of
cure characteristics (ISO 12114:1997)
EN ISO 12115, Fibre-reinforced plastics -Thermosetting moulding compounds and prepregs - Determination of
flowability, maturation and shelf life (ISO 12115:1997)
ISO 3795, Road vehicles, and tractors and machinery for agriculture and forestry - Determination of burning
behaviour of interior materials
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
Sheet Moulding Compound
reinforced thermosetting moulding material, flat sheets
3.2
Bulk Moulding Compound - BMC
reinforced thermosetting moulding materials, bulk
3.3
thermal flow
characterizes the flow behaviour of plastizised thermosetting moulding compounds, e.g. when filling a mould cavity
and for which the minimum torque
4 Requirements
4.1 General
Sheet moulding compounds, bulk moulding compounds and test specimens prepared by compression moulding
complying with this document shall meet the appropriate property requirements shown in Table 1 to Table 4.
No specific limits are placed on rheological and processing properties. Never the less suitable rheological and
processing properties are essential for the satisfactory use of a sheet moulding compound (SMC) and bulk
moulding compound (BMC). Appropriate properties shall therefore be specified in any contract.
The test method and the test condition shall be as agreed by the interested parties.
In addition, for some applications, it may be desirable for information to be made available on other properties of
the moulding compounds, for example:
 curing time;
 peak exotherm;
 flowability.
If this is so, these properties and test methods as well as the test conditions to be used shall be agreed by the
interested parties.
4.2 Type and content of filler/reinforcement
Sheet moulding compounds (SMC), bulk moulding compound (BMC) and test specimens prepared by compression
complying with this document shall meet the appropriate nature and form of the filler/reinforcement and its mass
content according to its designation (see Part 1, 3.2, of this document).
4.3 Recycling
All formulations can contain recycling materials. Some properties may be changing with contents more then 10 %.
4.4 Property data
For those moulding compounds complying with this document the mean value for the number of test specimens to
be used for each test method shall meet the appropriate requirement listed in Table 1.1 to Table 1.4 for SMC and
Table 3.1 to Table 3.4 for BMC of this part.
Properties which may be specified are shown in Table 2.1 to Table 2.4 for SMC and Table 4.1 to Table 4.3 for
BMC.
Table 1.1 - SMC-properties which shall be specified
1 2 3 4
Type/Grade SMC EN 14598-3 – UP. . .
Max. GF15 GF20 GF25 GF25
a
Property Unit
Proc
min. G G G G
1. Mechanical properties
1.1 Tensile modulus E t MPa Q > 7000 8000 8500 9000
1.2 Stress at break σ B MPa Q > 40 45 50 55
1.3 % Q 1,2 1,5 1,5 1,4
Strain at break ε B
1.4 Flexural modulus E f MPa Q > 7000 8500 9000 9500
1.5 MPa Q > 100 120 145 150
Flexural strength σ
f M
1.6 Charpy
kJ/m² Q > 35 40 50 60
Impact strength a
c U
2. Thermal properties
2.1 Temperature of deflect.
°C Q > 180 180 180 190
Under load T 1,8
f
2.2 Coefficient of linear 10E
Q 18 18 18 18
thermal expansion
-6/K
3. Electrical properties
3.1 Dissipation factor
- Q/M < 0,01 0,01 0,01 0.01
Tan δ 100
13 13 14 14
3.2 Volume resistivity ρ Ω cm Q/M >
e
10 10 10 10
12 12 12 12
3.3 Surface resistivity σ Ω Q/M >
e 10 10 10 10
3.4 Proof tracking index CTI – Q/M > 600 600 600 600
4. Flammability, Burning behaviour
4.1 EN 60695-11-10
class Q/M HB HB HB V1
4.2 ISO 3795 (>3,2 mm) class Q/M NBR NBR NBR NBR
4.3 Glow bar EN 60707
step Q/M BH 2-95 BH 2-95 BH2-95 BH 2-30
5. Chemical and physical properties
5.1 Density g/cm³ Q/M 1,9 1,85 1,85 1,9
5.2 Moulding shrinkage
% Q 0,15 0,15 0,15 0,14
6. Rheological and processing properties
%  by
6.1 Glass content Q/M 15 20 25 25
mass
7. Remarks
7.1 Characteristic Standard Standard, Standard, E LS,E,FR
7.2
EN ISO 295, EN ISO 12114, EN ISO 12115  830, 830.5 831. 831.5
7.3
Special properties
Properties to be specified are those, which should typically appear on a data sheet.
A selection of these properties also should be included on the certificate of conformity.
a
Proc.= Processing; Q = Compression moulding; M = Injection moulding, G = General purpose.

Table 1.2 - SMC-properties which shall be specified
5 6 7 8 9 10 11
Type/Grade SMC EN 14598-3 – UP. . .
GF30
GF30 GF30 GF25 GF30 GF28 GF27
a
Q Q Q,M,T Q,M,T, Q Q
Q
1. Mechanical properties
1.1 10500 10500 10000 10000 11500 7000 8500
1.2 70 70 65 55 80 65 60
1.3 1,4 1,4 1,5 1,4 1,5 1,5 1,3
1.4 10500 10500 9500 9500 10500 7000 7500
1.5 165 165 155 140 180 150 125
1.6 70 70 55 55 90 70 60
2. Thermal properties
2.1 200 200 190 180 200 190 180
2.2 18 16 16 17 10 10 12
3. Electrical properties
3.1 0,01 0,01 0,01 0,01 0,01 0.01 0,01
14 14 14
14 14 14 14
3.2 10 10 10 10
10 10 10
12 12 12
12 12 12 12
3.3 10x 10 10 10x
10 10 10
3.4 600 600 600 600 600 600 600
4. Flammability, Burning behaviour
4.1 V 0 V1 V0 V0 HB HB HB
4.2 NBR NBR NBR NBR NBR NBR NBR
4.3 BH 2-10 BH 2-30 BH 2-10 BH 2-10 BH2-95 BH 2-95 BH 2-95
5 Chemical and physical properties
5.1 1,8 1,85 1,85 1,85 1,9 1,8 1,8
5.2 0,12 0,12 0,07 0,07 -0,08 -0,08 -0,06
6. Rheological and processing properties
6.1 32 32 30 25 30 28 27
8. Remarks
LP Class A flex
7.1 LS,E,FR,M LS,E,FR,M, LS,E, FR, LS,E,FR, LP Class A LP,Low press.
7.2 832, 832.5 833, 833,5 834, 834.5
7.3
Properties to be specified are those, which should typically appear on a data sheet.
A selection of these properties also should be included on the certificate of conformity.
a
Proc.= Processing; Q = Compression moulding; M = Injection moulding, G = General purpose.

Table 1.3 - SMC-properties which shall be specified
12 13 14 15 16 17 18
Type/Grade SMC EN 14598-3 – UP. . .
GF25
GF25 GF20 GF25 GF25 GF25 GF30
a
Q Q Q Q Q Q
Q
1. Mechanical properties
1.1 9000 9000 8000 6000 9000 10500 10000
1.2 70 70 45 45 55 60 60
1.3 1,5 1,5 1,3 1,3 1,5 1,4 1,2
1.4 9000 9000 8000 6000 9000 10500 9000
1.5 160 160 115 120 155 155 160
1.6 70 70 45 45 60 60 70
2. Thermal properties
2.1 200 200 200 180 200 200 180
2.2 15 16 18 18 14 18 16
3. Electrical properties
3.1 0,01 0,01 0,01 0,01 0,01 0.01 0,01
14 14 14 14 14 15
3.2 10
10 10 10 10 10 10
12 12 12 12 12 14
3.3 10
10 10 10 10 10 10
3.4 600 600 600 600 600 600 400
4. Flammabil
...