SIST EN ISO 9163:2005

SLOVENSKI STANDARD
SIST EN ISO 9163:2005
01-julij-2005
1DGRPHãþD
SIST EN ISO 9163:2000
6WHNOHQHWNDQLQH6QRSLþLVWHNOHQLKYODNHQURYLQJV3ULSUDYDSUHVNXãDQFHYLQ
XJRWDYOMDQMHQDWH]QHWUGQRVWLLPSUHJQLUDQLKVQRSLþHYVWHNOHQLKYODNHQURYLQJV
,62
Textile glass - Rovings - Manufacture of test specimens and determination of tensile
strength of impregnated rovings (ISO 9163:2005)
Textilglas - Rovings - Herstellung von Probekörpern und Bestimmung der Zugfestigkeit
von imprägnierten Rovings (ISO 9163:2005)
Verre textile - Stratifils - Fabrication d'éprouvettes et essai de traction sur stratifil
imprégné (ISO 9163:2005)
Ta slovenski standard je istoveten z: EN ISO 9163:2005
ICS:
59.100.10 Materiali iz steklenih vlaken Textile glass materials
SIST EN ISO 9163:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN ISO 9163:2005

---------------------- Page: 2 ----------------------

SIST EN ISO 9163:2005



EUROPEAN STANDARD
EN ISO 9163

NORME EUROPÉENNE

EUROPÄISCHE NORM
April 2005
ICS 59.100.10 Supersedes EN ISO 9163:1998
English version
Textile glass - Rovings - Manufacture of test specimens and
determination of tensile strength of impregnated rovings (ISO
9163:2005)
Verre textile - Stratifils - Fabrication d'éprouvettes et essai
de traction sur stratifil imprégné (ISO 9163:2005)
This European Standard was approved by CEN on 15 March 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.




EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

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 ISO 9163:2005: E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------

SIST EN ISO 9163:2005
EN ISO 9163:2005 (E)


Foreword

This document (EN ISO 9163:2005) has been prepared by Technical Committee ISO/TC 61 "Plastics" in
collaboration with Technical Committee CEN/TC 249 "Plastics", the secretariat of which is held by IBN.


This document supersedes EN ISO 9163:1998.

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.

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.


Endorsement notice

The text of ISO 9163:2005 has been approved by CEN as EN ISO 9163:2005 without any modifications.
2

---------------------- Page: 4 ----------------------

SIST EN ISO 9163:2005
INTERNATIONAL ISO
STANDARD 9163
Second edition
2005-04-01
Textile glass — Rovings — Manufacture
of test specimens and determination of
tensile strength of impregnated rovings
Verre textile — Stratifils — Fabrication d'éprouvettes et essai de traction
sur stratifil imprégné

Reference number
ISO 9163:2005(E)
©
ISO 2005

---------------------- Page: 5 ----------------------

SIST EN ISO 9163:2005
ISO 9163:2005(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall
not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the
unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
© ISO 2005
All rights reserved. Unless otherwise specified, 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 either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
©
ii ISO 2005 – All rights reserved

---------------------- Page: 6 ----------------------

SIST EN ISO 9163:2005
ISO 9163:2005(E)
Contents Page
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Sampling and conditioning . 2
6 Production of test specimens — Reference method . 3
7 Production of test specimens — Short method . 13
8 Tensile testing . 15
9 Expression of results . 18
10 Test report . 19
Annex A (informative) Precision statement . 20
Bibliography . 21
©
ISO 2005 – All rights reserved iii

---------------------- Page: 7 ----------------------

SIST EN ISO 9163:2005
ISO 9163:2005(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International
Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 9163 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 13, Composites and
reinforcement fibres.
This second edition cancels and replaces the first edition (ISO 9163:1996), which has been technically revised,
as follows:
— The reference method remains essentially the same, with a few corrections, as in ISO 9163:1996.
— The so-called “fast method” described in ISO 9163:1996 has been deleted because it was no longer used.
It has been replaced by a method which needs far less time and gives results consistent with the reference
method.
©
iv ISO 2005 – All rights reserved

---------------------- Page: 8 ----------------------

SIST EN ISO 9163:2005
INTERNATIONAL STANDARD ISO 9163:2005(E)
Textile glass — Rovings — Manufacture of test specimens and
determination of tensile strength of impregnated rovings
1Scope
This International Standard specifies two methods for the determination of the tensile stress at break of an
impregnated roving:
— a reference method using test specimens produced with moulded epoxy tabs;
— a short method using test specimens with no tabs or simple cardboard or composite tabs.
The methods are applicable to both assembled (multistrand) and direct (multifilament) rovings; nevertheless the
reference method may be used for various linear densities, but the short method is described for 1 200 tex
rovings only, which is the linear density that allows the fibres in the roving to spread out most easily during
impregnation.
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.
ISO 291, Plastics — Standard atmospheres for conditioning and testing
ISO 472, Plastics — Vocabulary
ISO 1172, Textile-glass-reinforced plastics — Prepregs, moulding compounds and laminates — Determination
of the textile-glass and mineral-filler content — Calcination methods
ISO 1887, Textile glass — Determination of combustible-matter content
ISO 1889, Reinforcement yarns — Determination of linear density
ISO 2078, Textile glass — Yarns — Designation
ISO 2859-1, Sampling procedures for inspection by attributes — Part1: Sampling schemes indexed by
acceptance quality limit (AQL) for lot-by-lot inspection
ISO 3951-1, Sampling procedures for inspection by variables — Part 1: Specification for single sampling plans
indexed by acceptance quality limit (AQL) for lot-by-lot inspection for a single quality characteristic and a single
AQL
ISO 7822, Textile glass reinforced plastics — Determination of void content — Loss on ignition, mechanical
disintegration and statistical counting methods
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 472 and the following apply.
©
ISO 2005 – All rights reserved 1

---------------------- Page: 9 ----------------------

SIST EN ISO 9163:2005
ISO 9163:2005(E)
3.1
breaking force
force or load required to rupture a test specimen in a tensile test, usually expressed in newtons
3.2
gauge length
nominal length between the spines of contact of an extensometer (expressed in millimetres), by reference to
which the length increase due to a tensile force is determined
3.3
relative elongation
ratio of the increase in length (expressed in millimetres) between the spines of contact of an extensometer,
resulting from application of a tensile force, to the gauge length of the extensometer (also expressed in
millimetres)
3.4
breaking stress
ratio (expressed in megapascals) of the breaking force (expressed in newtons) to the cross-sectional area of a
roving (expressed in square millimetres)
3.5
loading stress
ratio (expressed in megapascals) of the tensile force applied to a roving during a tensile test (expressed in
newtons) to the cross-sectional area of the roving (expressed in square millimetres)
NOTE The force experienced by the resin can be neglected.
3.6
cross-sectional area
S
area of the cross-section of a roving given, in square millimetres, by the formula:
−3
ρ × 10
l
(1)
ρ
g
where
ρ is the exact linear density of the unsized roving, in tex;
l
is the density of the glass constituting the roving, in grams per cubic centimetre.
ρ
g
3.7
proportional limit
greatest stress (expressed in megapascals) for which the relative elongation is proportional to the applied force
4Principle
A specimen of impregnated roving is subjected to tensile loading to rupture using a suitable mechanical
apparatus, and the breaking stress of the specimen determined.
5 Sampling and conditioning
Carry out sampling in accordance with ISO2859-1, using the “inspection by attributes” method, or in
accordance with ISO 3951-1, using the “inspection by variables” method in order to minimize the number of
elementary units (packages) to be selected.
Condition the packages selected for at least 12 h in one of the standard atmospheres given in ISO 291.
©
2 ISO 2005 – All rights reserved

---------------------- Page: 10 ----------------------

SIST EN ISO 9163:2005
ISO 9163:2005(E)
6 Production of test specimens — Reference method
6.1 Apparatus
Ordinary laboratory apparatus, plus the following:
6.1.1 Impregnation apparatus (see Figure 1), including the following elements:
6.1.1.1 Reel, equipped with a tension-regulating system capable of maintaining the roving under a tension
between 0,2 N and 20 N by positioning the tensioning bars (see Figure2) to obtain a correct level of
impregnation. The tension can be adjusted by measuring it with a tension-measuring instrument between the
reel and the entrance guide.
Dimensions in metres
Key
1reel
2 tension-regulating system
3roving
4 impregnation vat
5die
6 winding system
7former
Figure 1 — General layout of impregnation apparatus
6.1.1.2 Impregnation vat, equipped with yarn guides (see Figure 2).
◦ ◦
It shall be capable of maintaining a temperature of up to 130 C with a precision of ± 5 C (the actual
temperature set will depend on the resin system).
The use of a double-walled vat, with heating fluid circulating between the walls, is recommended. If a vat of this
kind is not available, a hotplate may be used.
6.1.1.3 Stainless-steel die, designed to give the impregnated roving a defined circular cross-section.
The die shall be mounted on a spindle, permitting it to align itself automatically with the roving during reeling
(see Figure 2).
©
ISO 2005 – All rights reserved 3

---------------------- Page: 11 ----------------------

SIST EN ISO 9163:2005
ISO 9163:2005(E)
Dimensions in millimetres
Key
1 entrance guide (eye type)
2roving
3resin level
4 tensioning bars (smooth)
5 tensioning bars (grooved)
6 exit tensioning bar
7die
8 die support
9 impregnation vat
10 rotating spindle of die, Ø 3mm
NOTE Any equipment which is equivalent to the one illustrated above may be used, provided satisfactory impregnation is
obtained. Nevertheless, it is recommended that a die diameter given in Table 1 be used, in order to obtain a reproducible
impregnation ratio.
Figure 2 — Vat and die
©
4 ISO 2005 – All rights reserved

---------------------- Page: 12 ----------------------

SIST EN ISO 9163:2005
ISO 9163:2005(E)
The diameter of the die will depend on the linear density of the roving. It is given by the equation:
�
4ρ [(1/G)− (1+ρ )/ρ ]
l m g
d = (2)
1 000ρ π
m
where
ρ is the density of the matrix;
m
ρ
is the density of the glass in the roving;
g
ρ is the linear density of the roving, in tex;
l
G is the proportion of glass, by mass, in the composite, expressed as a figure between 0 and 1.
The glass content by mass, determined as specified in ISO1172, shall be approximately constant at
(75± 4) %.
Table 1 indicates some typical parameters for dies for different tex counts.
Table 1 — Typical parameters for dies for different tex counts
ρ (tex) 800 1 200 1 600 2 400 4 800
l
a
d (mm) 0,8 1,1 1,15 1,4 2
a
h (mm) 11,3 1,5 2 3
a
hd et are as indicated in Figure 2.
6.1.1.4 Winding device (mechanical or manual) with former, for collecting the impregnated roving,
ensuring that
— the roving is kept under tension;
— the impregnated strands are kept separate from each other.
The collecting speed shall be as constant as possible.
6.2 Preparation of test specimens
6.2.1 Type and dimensions
Each test specimen shall consist of an impregnated roving with moulded end tabs. Its dimensions shall be as
given in Figure 3.
A method for the fabrication of tabs is given in 6.3.
6.2.2 Number
For each of the packages selected (see Clause 5), at least 20 test specimens shall be prepared to obtain at
least 10 valid readings (five for the determination of the breaking stress and five for the tensile modulus). Testing
of more specimens might be necessary for statistical purposes.
©
ISO 2005 – All rights reserved 5

---------------------- Page: 13 ----------------------

SIST EN ISO 9163:2005
ISO 9163:2005(E)
Dimensions in millimetres
Figure 3 — Test specimen
6.2.3 Impregnation procedure
Set up the impregnating apparatus (6.1.1) as shown in Figure 1. Details of the apparatus may vary depending
on the type of roving package (reel or ball) and the way in which it is unwound (unravelled or unrolled). Verify
that:
a) The tension-regulating system and the yarn guide in front of the vat do not cause any damage to the roving.
b) The impregnating system and the conditions of passage through the vat are such that they provide an
impregnated roving of good quality. The quality of the impregnated roving may be verified by measuring the
void content of the material in accordance with ISO 7822. For the purposes of this International Standard,
the void content shall be lower than 2%. If the void content is higher, adjust the tension and/or the diameter
of the die to obtain the correct level.
Carry out the following operations:
Place a package on the reel of the tension-regulating system and unwind and discard at least the first three
layers of roving.
Install the die appropriate to the linear density of the roving to be impregnated (see Figure 2).
Prepare an impregnating system (polyester or epoxy resin) with the following characteristics:
1)
— viscosity at impregnation temperature lower than 0,4 Pa·s ;
— pot life of the system longer than twice the time required for the winding operation;
— minimum elongation at break: 5%.
Pour the impregnation resin into the vat (see Figure 2) and maintain a continuous check on its temperature.
Start the impregnation of the roving when the resin has reached the vat temperature.
Adjust the unwinding tension to about 3 mN/tex.
Rotate the former (see Figure 4) at about 2 rpm and as regularly as possible.
Wind on to the former a number of turns equal to at least two times the number required for the test
specimens to be produced; cut the roving and attach the free end to the former.
1) 1Pa·s = 10 poises
©
6 ISO 2005 – All rights reserved

---------------------- Page: 14 ----------------------

SIST EN ISO 9163:2005
ISO 9163:2005(E)
Keep the frame turning for about 10 min to prevent the resin from flowing along the roving.
Place the former vertically in an oven at a temperature which will ensure partial curing of the resin (a method
in which curing is complete is described in Clause 7).
Remove the former from the oven, and unwind and discard the first three turns and the last turn of the
impregnated roving.
Take 10 test specimens from each side of the former. The impregnated roving remaining on the former shall
be used to determine the percent
...