SIST EN ISO 11296-7:2013
(Main)Plastics piping systems for renovation of underground non-pressure drainage and sewerage networks - Part 7: Lining with spirally-wound pipes (ISO 11296-7:2011)
Plastics piping systems for renovation of underground non-pressure drainage and sewerage networks - Part 7: Lining with spirally-wound pipes (ISO 11296-7:2011)
This part of ISO 11296, in conjunction with Part 1, specifies requirements and test methods for pipes which are formed on site by spirally winding and jointing a pre-manufactured profiled plastics strip, or a profiled plastics strip and integral locking joiner strip, and used for the renovation of underground non-pressure drainage and sewerage networks. It applies to spirally-wound pipes of fixed or variable diameter installed by one of two methods.
Kunststoff-Rohrleitungssysteme für die Renovierung von erdverlegten drucklosen Entwässerungsnetzen (Freispiegelleitungen) -Teil 7: Wickelrohr-Lining (ISO 11296-7:2011)
Dieser Teil von ISO 11296 legt in Verbindung mit ISO 11296-1 die Anforderungen und Prüfverfahren für Rohre fest, die durch spiralförmiges Wickeln und Verbinden eines vorgefertigten profilierten Kunststoff-Streifens oder eines profilierten Kunststoff-Streifens mit integriertem Verbindungsstreifen vor Ort geformt und für die Renovierung von erdverlegten drucklosen Entwässerungsnetzen verwendet werden.
Er gilt für Wickelrohre mit festgelegtem Kreis-Durchmesser oder für variablen Nicht- und Kreis-Durchmesser, die nach einem der beiden Verfahren verlegt werden.
Beim ersten Verfahren wird eine dafür vorgesehene Wickelmaschine eingesetzt, die sich vor der Öffnung einer bereits bestehenden Rohrleitung, z. B. in einem Einsteigschacht, befindet. Die so geformten Rohre werden kontinuierlich durch spiralförmiges Wickeln in die bestehende Rohrleitung eingebracht und können ebenfalls mithilfe bestimmter Verfahren während des oder nach dem Einbringen im Durchmesser aufgeweitet werden.
Beim zweiten Verfahren wird eine dafür vorgesehene Wickelmaschine eingesetzt, die das Rohr formt, während diese die bestehende Rohrleitung von einem Einsteigschacht zum nächsten durchquert.
Dieser Teil gilt für Wickelrohre mit festgelegtem oder variablem Durchmesser, hergestellt aus profilierten Kunststoff-Streifen, mit oder ohne Versteifungselemente aus Stahl, aus weichmacherfreiem Polyvinyl-chlorid (PVC U) mit integriertem Verbindungsmechanismus oder aus Polyethylen hoher Dichte (HDPE) mit integrierten Schweißverbindungen.
Systèmes de canalisations en plastique pour la rénovation des réseaux de branchements et de collecteurs d'assainissement enterrés sans pression - Partie 7: Tubage par enroulement hélicoïdal avec espace annulaire (ISO 11296-7:2011)
Cevni sistemi iz polimernih materialov za obnovo podzemnih omrežij za odvodnjavanje in kanalizacijo - 7. del: Oblaganje s spiralnimi cevmi (ISO 11296-7:2011)
Ta del standarda ISO 11296 v povezavi s 1. delom določa zahteve in preskusne metode za cevi, ki se tvorijo na mestu s spiralnim navijanjem in spajanjem vnaprej izdelanega plastičnega pasu s profilom ter integralnega zaskočnega spajalnega pasu, ter se uporabljajo za obnovo podzemnih omrežij za odvodjavanje in kanalizacijo brez tlaka. Uporablja se za spiralne cevi enotnega ali spremenljivega obsega, ki se namestijo z eno od dveh metod.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 11296-7:2013
01-april-2013
1DGRPHãþD
SIST EN 13566-7:2007
Cevni sistemi iz polimernih materialov za obnovo podzemnih omrežij za
odvodnjavanje in kanalizacijo - 7. del: Oblaganje s spiralnimi cevmi (ISO 11296-
7:2011)
Plastics piping systems for renovation of underground non-pressure drainage and
sewerage networks - Part 7: Lining with spirally-wound pipes (ISO 11296-7:2011)
Kunststoff-Rohrleitungssysteme für die Renovierung von erdverlegten drucklosen
Entwässerungsnetzen (Freispiegelleitungen) -Teil 7: Wickelrohr-Lining (ISO 11296-
7:2011)
Systèmes de canalisations en plastique pour la rénovation des réseaux de
branchements et de collecteurs d'assainissement enterrés sans pression - Partie 7:
Tubage par enroulement hélicoïdal avec espace annulaire (ISO 11296-7:2011)
Ta slovenski standard je istoveten z: EN ISO 11296-7:2013
ICS:
23.040.20 Cevi iz polimernih materialov Plastics pipes
91.140.80 Drenažni sistemi Drainage systems
93.030 Zunanji sistemi za odpadno External sewage systems
vodo
SIST EN ISO 11296-7:2013 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 11296-7:2013
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SIST EN ISO 11296-7:2013
EUROPEAN STANDARD
EN ISO 11296-7
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2013
ICS 23.040.20; 23.040.45; 23.040.99; 93.030 Supersedes EN 13566-7:2007
English Version
Plastics piping systems for renovation of underground non-
pressure drainage and sewerage networks - Part 7: Lining with
spirally-wound pipes (ISO 11296-7:2011)
Systèmes de canalisations en plastique pour la rénovation Kunststoff-Rohrleitungssysteme für die Renovierung von
des réseaux de branchements et de collecteurs erdverlegten drucklosen Entwässerungsnetzen
d'assainissement enterrés sans pression - Partie 7: Tubage (Freispiegelleitungen) -Teil 7: Wickelrohr-Lining (ISO
par enroulement hélicoïdal avec espace annulaire (ISO 11296-7:2011)
11296-7:2011)
This European Standard was approved by CEN on 5 February 2013.
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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11296-7:2013: E
worldwide for CEN national Members.
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SIST EN ISO 11296-7:2013
EN ISO 11296-7:2013 (E)
Contents Page
Foreword .3
2
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SIST EN ISO 11296-7:2013
EN ISO 11296-7:2013 (E)
Foreword
The text of ISO 11296-7:2011 has been prepared by Technical Committee ISO/TC 138 “Plastics pipes, fittings
and valves for the transport of fluids” of the International Organization for Standardization (ISO) and has been
taken over as EN ISO 11296-7:2013 by Technical Committee CEN/TC 155 “Plastics piping systems and
ducting systems” the secretariat of which is held by NEN.
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 August 2013, and conflicting national standards shall be withdrawn at
the latest by August 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 13566-7:2007.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 11296-7:2011 has been approved by CEN as EN ISO 11296-7:2013 without any modification.
3
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SIST EN ISO 11296-7:2013
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SIST EN ISO 11296-7:2013
INTERNATIONAL ISO
STANDARD 11296‑7
First edition
2011-11-01
Plastics piping systems for renovation of
underground non‑pressure drainage and
sewerage networks —
Part 7:
Lining with spirally‑wound pipes
Systèmes de canalisations en plastique pour la rénovation des réseaux
de branchements et de collecteurs d’assainissement enterrés sans
pression —
Partie 7: Tubage par enroulement hélicoïdal avec espace annulaire
Reference number
ISO 11296-7:2011(E)
©
ISO 2011
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SIST EN ISO 11296-7:2013
ISO 11296‑7:2011(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2011
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 2011 – All rights reserved
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SIST EN ISO 11296-7:2013
ISO 11296‑7:2011(E)
Contents Page
Foreword .iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and abbreviated terms . 3
4.1 Symbols . 3
4.2 Abbreviated terms . 3
5 Pipes at the “M” stage . 3
5.1 Materials . 3
5.2 General characteristics . 4
5.3 Material characteristics . 4
5.4 Geometric characteristics . 5
5.5 Mechanical characteristics . 6
5.6 Physical characteristics . 6
5.7 Jointing . 6
5.8 Marking . 6
6 Fittings at the “M” stage . 7
7 Ancillary components . 7
8 Fitness for purpose of the installed lining system at the “I” stage . 7
8.1 Materials . 7
8.2 General characteristics . 7
8.3 Material characteristics . 7
8.4 Geometric characteristics . 7
8.5 Mechanical characteristics . 7
8.6 Physical characteristics . 8
8.7 Additional characteristics . 8
8.8 Preparation of samples . 8
8.9 Adhesives . 8
9 Installation practice . 8
9.1 Preparatory work . 8
9.2 Storage, handling and transportation of profiled plastics strips and fittings . 8
9.3 Equipment . 8
9.4 Installation . 9
9.5 Process‑related inspection and testing .10
9.6 Lining termination .10
9.7 Reconnecting to existing manholes and laterals .10
9.8 Final inspection and testing .10
9.9 Documentation .10
Annex A (normative) Spirally‑wound pipe — Test method for watertightness in a deflected condition . 11
Annex B (informative) Examples of methods for reconnecting and sealing laterals to SWO pipe .14
Bibliography .16
© ISO 2011 – All rights reserved iii
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SIST EN ISO 11296-7:2013
ISO 11296‑7:2011(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 11296-7 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the
transport of fluids.
ISO 11296 consists of the following parts, under the general title Plastics piping systems for renovation of
underground non-pressure drainage and sewerage networks:
— Part 1: General
— Part 3: Lining with close-fit pipes
— Part 4: Lining with cured-in-place pipes
— Part 7: Lining with spirally-wound pipes
Lining with continuous pipes is to form the subject of a Part 2 and lining with discrete pipes is to form the subject
of a Part 5.
iv © ISO 2011 – All rights reserved
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SIST EN ISO 11296-7:2013
ISO 11296‑7:2011(E)
Introduction
The System Standard, of which this is Part 7, specifies the requirements for plastics piping systems of various
materials used for renovation of existing pipelines in a specified application area. System Standards for
renovation specify procedures for the following applications:
— plastics piping systems for renovation of underground non-pressure drainage and sewerage networks (this
application);
— plastics piping systems for renovation of underground drainage and sewerage networks under pressure;
— plastics piping systems for renovation of underground water supply networks;
— plastics piping systems for renovation of underground gas supply networks.
These System Standards are distinguished from those for conventionally installed plastics piping systems
because they set requirements for certain characteristics in the as-installed condition, after site processing.
This is in addition to specifying requirements for plastics piping system components, as manufactured.
Each of the System Standards comprises a Part 1 (general) and all applicable renovation technique family-
related parts from the following:
— Part 2: Lining with continuous pipes;
— Part 3: Lining with close-fit pipes;
— Part 4: Lining with cured-in-place pipes;
— Part 5: Lining with discrete pipes;
— Part 7: Lining with spirally-wound pipes.
The requirements for any given renovation technique family are given in Part 1, applied in conjunction with
the relevant other part. For example, Parts 1 and 2 specify the requirements relating to lining with continuous
pipes. For complementary information, see ISO 11295. Not all technique families are applicable to every area
of application and this is reflected in the part numbers included in each System Standard.
A consistent structure of clause headings has been adopted for all parts to facilitate direct comparisons across
renovation technique families.
Figure 1 shows the common structure and the relationship between ISO 11296 and the System Standards for
other application areas.
© ISO 2011 – All rights reserved v
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SIST EN ISO 11296-7:2013
ISO 11296‑7:2011(E)
Figure 1 — Format of the renovation System Standards
vi © ISO 2011 – All rights reserved
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SIST EN ISO 11296-7:2013
INTERNATIONAL STANDARD ISO 11296‑7:2011(E)
Plastics piping systems for renovation of underground
non‑pressure drainage and sewerage networks —
Part 7:
Lining with spirally‑wound pipes
1 Scope
This part of ISO 11296, in conjunction with Part 1, specifies requirements and test methods for pipes which are
formed on site by spirally winding and jointing a pre-manufactured profiled plastics strip, or a profiled plastics
strip and integral locking joiner strip, and used for the renovation of underground non-pressure drainage and
sewerage networks.
It applies to spirally-wound pipes of fixed or variable diameter installed by one of two methods.
The first method employs a dedicated winding machine in front of the open end of an existing pipeline, e.g. in
a manhole. The pipes thus formed are simultaneously inserted into the existing pipeline by the winding forces,
and by certain techniques can also be expanded in diameter after or during insertion.
The second method employs a dedicated winding machine which forms the pipe as it traverses the existing
pipeline from one manhole to the next.
It covers spirally-wound pipes of fixed or variable diameter made of profiled plastics strips, with or without
steel stiffening elements, of unplasticized poly(vinyl chloride) (PVC-U) with integral locking mechanism or high
density polyethylene (HDPE) with integrally welded joints.
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 37, Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties
ISO 179-1, Plastics — Determination of Charpy impact properties — Part 1: Non-instrumented impact test
ISO 306, Plastics — Thermoplastics materials — Determination of Vicat softening temperature (VST)
ISO 527-1, Plastics — Determination of tensile properties — Part 1: General principles
ISO 527-2, Plastics — Determination of tensile properties — Part 2: Test conditions for moulding and extrusion
plastics
ISO 4427 (all parts), Plastics piping systems — Polyethylene (PE) pipes and fittings for water supply
ISO 4435, Plastics piping systems for non-pressure underground drainage and sewerage — Unplasticized
poly(vinyl chloride) (PVC-U)
ISO 4948-2, Steels — Classification — Part 2: Classification of unalloyed and alloy steels according to main
quality classes and main property or application characteristics
ISO 6259-1, Thermoplastics pipes — Determination of tensile properties — Part 1: General test method
© ISO 2011 – All rights reserved 1
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SIST EN ISO 11296-7:2013
ISO 11296‑7:2011(E)
ISO 7619-1, Rubber, vulcanized or thermoplastic — Determination of indentation hardness — Part 1: Durometer
method (Shore hardness)
ISO 9967, Thermoplastics pipes — Determination of creep ratio
ISO 9969, Thermoplastics pipes — Determination of ring stiffness
ISO 11296-1, Plastics piping systems for renovation of underground non-pressure drainage and sewerage
networks — Part 1: General
ISO 11296-4:2009, Plastics piping systems for renovation of underground non-pressure drainage and sewerage
networks — Part 4: Lining with cured-in-place pipes
EN 1979, Plastics piping and ducting systems — Thermoplastics spirally-formed structured-wall pipes —
Determination of the tensile strength of a seam
EN 14364:2006, Plastics piping systems for drainage and sewerage with or without pressure — Glass-
reinforced thermosetting (GRP) plastics based on unsaturated polyester resin (UP) — Specifications for pipes,
fittings and joints
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 11296-1 and the following apply.
3.1
spirally‑wound pipe
pipe formed by continuously winding and joining a profiled plastics strip, or a profiled plastics strip and integral
locking joiner strip
3.2
seam
joint between adjacent profiled plastics strips formed by an integral locking mechanism and/or seam sealant
3.3
integral locking mechanism
mechanical interlock achieved by suitable design of the edges of the extruded profile
3.4
seam sealant
thermoplastic or adhesive material added to the integral locking mechanism or profiled plastics strip surface to
make the seam leaktight
3.5
close fit
location of the outside of the installed liner relative to the inside of the existing pipeline, which may either be an
interference fit or include a small annular gap resulting from shrinkage and tolerances only
NOTE Tolerances in the above definition refers to offsets and deformities in the existing pipeline. Spirally-wound
liners are not subject to shrinkage.
3.6
close‑fit spirally‑wound pipe
continuous lining pipe wound from a profiled plastics strip, with or without steel reinforcement, expanded or
wound in place to achieve a close fit to the existing pipeline
2 © ISO 2011 – All rights reserved
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SIST EN ISO 11296-7:2013
ISO 11296‑7:2011(E)
4 Symbols and abbreviated terms
For the purposes of this document, the symbols and abbreviated terms given in ISO 11296-1 and the following
apply.
4.1 Symbols
2
A cross-sectional area of the profiled plastics strip mm/mm
w
d outside diameter mm
e
e height of neutral axis of the strip above its base mm
a
e overall profile height mm
o
e minimal waterway wall thickness mm
w,min
e waterway wall thickness at any point mm
w
e encapsulation thickness at any point mm
1
e encapsulation thickness at any point mm
2
4
I second moment of area of the strip mm/mm
w
l length of the specimen for short-term tensile force resistance test of the locked seam mm
s
2
S ring stiffness of the pipe kN/m
w effective width of the strip mm
w width of the specimen for short-term tensile force resistance test of the locked seam mm
s
4.2 Abbreviated terms
EPDM ethylene-propylene-diene monomer
GRP glass-reinforced thermosetting plastic
HDPE high density polyethylene
PE polyethylene
PVC-U unplasticized poly(vinyl chloride)
SWO spirally-wound
5 Pipes at the “M” stage
This clause specifies requirements for profiled plastics strips, and the material classification of any steel
stiffening elements incorporated, prior to winding into a pipe. For requirements for the wound pipe, see Clause
8.
5.1 Materials
The material of the profiled plastics strip shall be unplasticized poly(vinyl chloride) (PVC-U) or high density
polyethylene (HDPE), to which are added those additives needed to facilitate the manufacture and/or installation
of pipes conforming to this part of ISO 11296.
© ISO 2011 – All rights reserved 3
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SIST EN ISO 11296-7:2013
ISO 11296‑7:2011(E)
Depending on the design of the profiled plastics strip, the seam sealant shall comprise one or more of the
following materials:
— thermoplastics elastomers (e.g. HDPE, EPDM, silicone);
— adhesives (e.g. amorphous poly-alpha-olefin).
Only virgin and own reprocessable materials, as defined in ISO 11296-1, are permitted for the profiled plastics
strips and seam sealant. The material(s) used for the seam sealant shall be declared by the manufacturer of
the profiled plastics strips.
Any steel stiffening elements, including material grade classified in accordance with ISO 4948-2 or other
equivalent international or national standard, shall be declared by the supplier. The material of any stiffening
element, whether or not encapsulated, shall in all cases be approved by the client for the environment of its
specific application.
NOTE 1 Detailed specification of non-plastics materials is outside the scope of this part of ISO 11296.
NOTE 2 Some sewage effluents and groundwater contaminants potentially corrosive to steel can penetrate a thin
protective layer of PVC-U or HDPE. Depending on the profile design and installation technique, such protective layers can
also be exposed to risk of damage.
5.2 General characteristics
When viewed without magnification, the surfaces of the profiled plastics strips shall be smooth, clean and free
from scoring, cavities and other defects which would prevent conformity to this part of ISO 11296.
5.3 Material characteristics
The material of the profiled plastics strip when extruded to a flat plate of thickness 3 mm to 6 mm shall conform
to the requirements given in Tables 1 and 2.
Thermoplastics used as seam sealants shall conform to the material requirements of Tables 1 and 2 for PVC
and HDPE respectively. Thermoplastic elastomers (e.g. EPDM) used as seam sealants shall conform to the
material requirements of Table 3.
Table 1 — Material characteristics of PVC‑U profiled plastics strips
Test parameters
Characteristics Requirements Test method
Parameter Value
Modulus of elasticity, Speed of testing (1 ± 0,2) mm/min
≥ 2 000 MPa ISO 527-2
E (tensile) Specimen Type 1B
Tensile strength
≥ 35 MPa
Speed of testing (5 ± 0,5) mm/min
longitudinal
ISO 527-1
Specimen Type 1B
Elongation at break ≥ 40 %
Specimen Type 1
Charpy Impact
2
≥ 10 kJ/m Direction of blow Flatwise ISO 179-1
Strength
Notch Double V, Type A
4 © ISO 2011 – All rights reserved
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SIST EN ISO 11296-7:2013
ISO 11296‑7:2011(E)
Table 2 — Material characteristics of HDPE profiled plastics strips
Test parameters
Characteristics Requirements Test method
Parameter Value
Modulus of elasticity, Speed of testing (1 ± 0,2) mm/min
≥ 800 MPa ISO 527-2
E (tensile) Specimen Type 1B
Tensile strength
≥ 15 MPa
Speed of testing (100 ± 10) mm/min
longitudinal
ISO 6259-1
Specimen Type 1B
Elongation at break ≥ 300 %
Table 3 — Material characteristics of thermoplastic elastomer sealants
Test parameters
Characteristics Requirements Test method
Parameters Value
Tensile strength
≥ 1 MPa
Speed of testing 500 mm/min
longitudinal
ISO 37
Specimen Type 1
Elongation at break ≥ 200 %
Shore hardness A 30 ± 5 — ISO 7619-1
5.4 Geometric characteristics
The dimensions and section properties including tolerances of the profiled plastics strips shall be declared by
the profile plastics strips supplier.
The declared values shall conform to the requirements given in Table 4, where applicable.
Table 4 — Profiled plastics strip dimensions and section properties
Characteristics Symbol Units Requirements
Profiled strip dimensions e mm declared value but not less than 4,5 mm
o
e mm declared value but not less than 1,4 mm
w
e mm declared value
a
e mm declared value but not less than 1,4 mm
1
e mm declared value but not less than 1,4 mm
2
w mm declared value
2
A mm/mm declared value
w
4
I mm/mm declared value
w
a
Minimum outside diameter of wound pipe d mm declared value
e,min
b
Maximum outside diameter of wound pipe d mm declared value
e,max
a
d shall be limited by the maximum allowable winding strain in the profile strip.
e,min
b
d shall be limited by the minimum pipe ring stiffness requirement (see 8.5).
e,max
The profiled plastics strip supplier shall assign to each profile strip a unique product code (see 5.8) for which
the dimensions and section properties listed in Table 4 shall be declared.
An example of a profiled plastics strip excluding the seam is illustrated in Figure 2 a). An example of a profiled
plastics strip with encapsulated steel is illustrated in Figure 2 b).
© ISO 2011 – All rights reserved 5
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SIST EN ISO 11296-7:2013
ISO 11296‑7:2011(E)
a) Example of a cross‑section of a profiled plastics strip
b) Example of a cross‑section of a profiled plastics strip with encapsulated steel
...
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