SIST EN 15655-2:2021
(Main)Ductile iron pipes, fittings and accessories - Requirements and test methods for organic linings of ductile iron pipes and fittings - Part 2: Thermoplastic Modified Polyolefin (TMPO) lining of pipes
Ductile iron pipes, fittings and accessories - Requirements and test methods for organic linings of ductile iron pipes and fittings - Part 2: Thermoplastic Modified Polyolefin (TMPO) lining of pipes
This European Standard defines the requirements and test methods for thermoplastic modified polyolefin (TMPO) lining of pipes and fittings.
Rohre, Formstücke und Zubehörteile aus duktilem Gusseisen - Anforderungen und Prüfverfahren für organische Auskleidungen von Rohren und Formstücken aus duktilem Gusseisen - Teil 2: Auskleidung von Rohren aus thermoplastisch säuremodifiziertem Polyolefin (TMPO)
Dieses Dokument legt die Anforderungen an werksseitig aufgebrachte Innenauskleidungen aus thermo-plastisch säuremodifiziertem Polyolefin (en: thermoplastic acid modified polyolefin, TMPO) für den Korrosionsschutz für erhöhte Beanspruchung von Rohren aus duktilem Gusseisen nach EN 545, EN 598 und EN 969 sowie die dafür geltenden Prüfverfahren fest. Dieses Dokument gilt auch für Rohre, bei denen nur Muffen- und Einsteckenden mit TMPO beschichtet sind. Formstücke und Zubehörteile werden durch EN 14901 2 gesondert abgedeckt.
Tuyaux, raccords et accessoires en fonte ductile - Prescriptions et méthodes d’essai pour les revêtements organiques des tuyaux et raccords en fonte ductile - Partie 2 : Revêtements thermoplastiques en polyoléfine modifiée par un acide (TPMA) des tuyaux
Le présent document spécifie les prescriptions et les méthodes d’essai relatives aux revêtements intérieurs thermoplastiques en polyoléfine modifiée par un acide (TPMA), appliqués en usine, et destinés à fournir une protection renforcée contre la corrosion pour les tuyaux en fonte ductile conformes à l’EN 545, l’EN 598 et l’EN 969. Le présent document s’applique aussi aux tuyaux dont seules l’extrémité à bout uni et l’emboîture sont revêtues de TPMA. Les raccords et accessoires sont traités séparément dans l’EN 14901-2.
Cevi, fitingi in pribor iz duktilne železove litine - Zahteve in preskusne metode za notranje organske prevleke cevi in fitingov iz duktilne železove litine - 2. del: Termoplastična notranja prevleka cevi iz modificiranega poliolefina (TMPO)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 15655-2:2021
01-februar-2021
Nadomešča:
SIST EN 15655:2009
Cevi, fitingi in pribor iz duktilne železove litine - Zahteve in preskusne metode za
notranje organske prevleke cevi in fitingov iz duktilne železove litine - 2. del:
Termoplastična notranja prevleka cevi iz modificiranega poliolefina (TMPO)
Ductile iron pipes, fittings and accessories - Requirements and test methods for organic
linings of ductile iron pipes and fittings - Part 2: Thermoplastic Modified Polyolefin
(TMPO) lining of pipes
Rohre, Formstücke und Zubehörteile aus duktilem Gusseisen - Anforderungen und
Prüfverfahren für organische Auskleidungen von Rohren und Formstücken aus duktilem
Gusseisen - Teil 2: Auskleidung von Rohren aus thermoplastisch säuremodifiziertem
Polyolefin (TMPO)
Tuyaux, raccords et accessoires en fonte ductile - Prescriptions et méthodes d’essai
pour les revêtements organiques des tuyaux et raccords en fonte ductile - Partie 2 :
Revêtements thermoplastiques en polyoléfine modifiée par un acide (TPMA) des tuyaux
Ta slovenski standard je istoveten z: EN 15655-2:2020
ICS:
23.040.10 Železne in jeklene cevi Iron and steel pipes
23.040.40 Kovinski fitingi Metal fittings
SIST EN 15655-2:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 15655-2:2021
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SIST EN 15655-2:2021
EN 15655-2
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2020
EUROPÄISCHE NORM
ICS 23.040.10; 23.040.40 Supersedes EN 15655:2009
English Version
Ductile iron pipes, fittings and accessories - Requirements
and test methods for organic linings of ductile iron pipes
and fittings - Part 2: Thermoplastic Acid Modified
Polyolefin (TMPO) lining of pipes
Tuyaux, raccords et accessoires en fonte ductile - Rohre, Formstücke und Zubehörteile aus duktilem
Prescriptions et méthodes d'essai pour les revêtements Gusseisen - Anforderungen und Prüfverfahren für
organiques des tuyaux et raccords en fonte ductile - organische Auskleidungen von Rohren und
Partie 2 : Revêtements thermoplastiques en Formstücken aus duktilem Gusseisen - Teil 2:
polyoléfine modifiée par un acide (TPMA) des tuyaux Auskleidung von Rohren aus thermoplastisch
säuremodifiziertem Polyolefin (TMPO)
This European Standard was approved by CEN on 11 October 2020.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15655-2:2020 E
worldwide for CEN national Members.
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SIST EN 15655-2:2021
EN 15655-2:2020 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Ordering information . 9
5 Technical requirements . 9
5.1 Surface preparation . 9
5.2 Finished TMPO lining . 9
5.2.1 Appearance and continuity . 9
5.2.2 Minimum lining thickness . 9
5.3 Non-porosity . 9
5.4 Pipe ends . 10
5.5 Repairs . 10
5.6 Marking . 10
5.7 Adhesion . 10
6 Performance requirements . 10
6.1 Chemical resistance . 10
6.2 Indirect Impact strength . 11
6.3 Resistance to ovalization . 11
6.4 Elongation at break . 11
6.5 Abrasion resistance (only for waste water application) . 11
6.6 Materials in contact with water intended for human consumption . 11
7 Test methods . 12
7.1 Routine tests . 12
7.1.1 General. 12
7.1.2 Surface preparation . 12
7.1.3 Appearance and continuity . 12
7.1.4 Lining thickness. 12
7.1.5 Pipe ends . 12
7.1.6 Repairs . 12
7.1.7 Marking . 12
7.1.8 Non-porosity . 12
7.1.9 Adhesion . 13
7.2 Performance tests . 13
7.2.1 General. 13
7.2.2 Chemical resistance . 13
7.2.3 Indirect impact strength . 14
7.2.4 Resistance to ovalization . 14
7.2.5 Elongation at break . 14
7.2.6 Abrasion resistance (only for waste water application) . 14
Annex A (informative) Quality assurance . 15
A.1 General. 15
2
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SIST EN 15655-2:2021
EN 15655-2:2020 (E)
A.2 Performance test - DN grouping . 16
A.3 Quality assessment system . 17
Annex B (informative) Lining process and materials . 18
B.1 Lining application process . 18
B.2 Material properties . 18
B.2.1 General . 18
B.2.2 TMPO . 18
B.2.3 Epoxy resin . 18
B.3 Jet cleaning . 18
B.4 Field of use (characteristics of transported waters) . 19
Annex C (informative) Packaging . 20
Bibliography . 21
3
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SIST EN 15655-2:2021
EN 15655-2:2020 (E)
European foreword
This document (EN 15655-2:2020) has been prepared by Technical Committee CEN/TC 203 “Cast iron
pipes, fittings and their joints”, the secretariat of which is held by AFNOR.
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 May 2021, and conflicting national standards shall be
withdrawn at the latest by May 2021.Attention is drawn to the possibility that some of the elements of
this document may be the subject of patent rights. CEN shall not be held responsible for identifying any
or all such patent rights.
This document supersedes EN 15655:2009.
The main changes to EN 15655:2009 are:
a) EN 15655 has been split into two parts. This part covers thermoplastic acid modified polyolefin
lining of pipes.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
4
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SIST EN 15655-2:2021
EN 15655-2:2020 (E)
Introduction
This document is in conformity with the general requirements already established by CEN/TC 164 in the
field of water supply (e.g. potable water) and CEN/TC 165 in the field of waste water.
In respect of potential adverse effects on the quality of water intended for human consumption, caused
by the product covered by this document:
a) no information is provided as to whether the product may be used without restriction in any of the
member states of the EU or EFTA;
b) it should be noted that, while awaiting the adoption of verifiable European criteria, existing national
regulations concerning the use and/or the characteristics of this product remain in force.
5
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SIST EN 15655-2:2021
EN 15655-2:2020 (E)
1 Scope
This document specifies the requirements and test methods applicable to factory applied internal lining
made of thermoplastic acid modified polyolefin (TMPO) for the heavy duty corrosion protection of ductile
iron pipes conforming to EN 545, EN 598 and EN 969. This document also applies to pipes with only
socket and spigot ends coated with TMPO. Fittings and accessories are covered separately by EN 14901-2.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 545, Ductile iron pipes, fittings, accessories and their joints for water pipelines — Requirements and test
methods
EN 598:2007+A1:2009, Ductile iron pipes, fittings, accessories and their joints for sewerage applications —
Requirements and test methods
EN 805, Water supply — Requirements for systems and components outside buildings
EN 969, Ductile iron pipes, fittings, accessories and their joints for gas pipelines — Requirements and test
methods
EN 14901-1, Ductile iron pipes, fittings and accessories — Requirements and test methods for organic
coatings of ductile iron fittings and accessories — Part 1: Epoxy coating (heavy duty)
EN 14901-2, Ductile iron pipes, fittings and accessories — Requirements and test methods for organic
coatings of ductile iron fittings and accessories — Part 2: Thermoplastic acid modified polyolefin coating
(TMPO)
EN ISO 4624, Paints and varnishes — Pull-off test for adhesion (ISO 4624)
EN ISO 4628-2:2016, Paints and varnishes — Evaluation of degradation of coatings — Designation of
quantity and size of defects, and of intensity of uniform changes in appearance — Part 2: Assessment of
degree of blistering (ISO 4628-2:2016)
EN ISO 4628 (series), Paints and varnishes — Evaluation of degradation of coatings — Designation of
quantity and size of defects, and of intensity of uniform changes in appearance
EN ISO 62:2008, Plastics — Determination of water absorption (ISO 62:2008)
EN ISO 527-3, Plastics — Determination of tensile properties — Part 3: Test conditions for films and sheets
(ISO 527-3)
EN ISO 6272-1:2011, Paints and varnishes — Rapid-deformation (impact resistance) tests — Part 1:
Falling-weight test, large-area indenter (ISO 6272-1:2011)
EN ISO 8501-1, Preparation of steel substrates before application of paints and related products — Visual
assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel substrates
and of steel substrates after overall removal of previous coatings (ISO 8501-1)
6
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SIST EN 15655-2:2021
EN 15655-2:2020 (E)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
ductile iron
cast iron used for pipes, fittings and accessories in which graphite is present substantially in spheroidal
form
3.2
adhesion
force per unit area, applied perpendicular to the surface, which is necessary to separate the lining from
its substrate
3.3
indirect impact strength
impact energy applied from outside of the pipe with deformation to which a lining can withstand without
damage under defined test conditions
3.4
hardness
resistance of the lining to the penetration of a ball under defined test conditions
3.5
minimum lining thickness
minimum value of the lining thickness measured at the lined item
3.6
non-porosity
absence of holidays in a high voltage test under defined test conditions
3.7
TMPO lining
factory applied lining which consists of TMPO on the inside of the pipe
7
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SIST EN 15655-2:2021
EN 15655-2:2020 (E)
Key
1 gasket seat
2 pipe barrel
3 spigot end
4 lining
5 internal socket profile
Figure 1 — Location of the defined pipe areas
3.8
thermoplastic acid modified polyolefin powder material (TMPO powder)
polyolefin resin in which a significant amount of carbon hydrogen chemical bonds are replaced by
carboxylic acid functional groups
[SOURCE: EN 14901-2:2019]
3.9
specific lining resistance
surface related electric resistance of the lining perpendicular to the pipe wall
3.10
performance test
test which is done once and is repeated according to a schedule or after relevant change of lining material
and/or material supplier or change in process application
3.11
routine test
test carried out to control the manufacturing process with a frequency defined by the manufacturer
3.12
designated zones
areas of a casting where because of jointing tolerance restrictions, testing difficulties, or shrouding by a
gasket, etc. a lower standard of lining performance is unavoidable
Note 1 to entry: For the purpose of this standard these areas are defined as:
— joint areas;
— permitted markings;
— edges
Note 2 to entry: Where considered necessary, these zones may be protected by appropriate additional corrosion
protection measures during or after installation. However, such measures are not part of this standard
8
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SIST EN 15655-2:2021
EN 15655-2:2020 (E)
4 Ordering information
The following information shall be supplied by the purchaser to the manufacturer.
Ductile iron pipes according to EN 545, EN 598 or EN 969 but internally lined in accordance with this
document shall be specified in the purchaser's enquiry and order by reference to this standard, e.g.
— 5 000 m of ductile iron pipe DN 300 according to EN 545, internal TMPO-lining according to
EN 15655-2; or
— further information about use and handling, if needed.
General information on handling, transportation and storage to prevent damage to the TMPO lining is
given in Annex C.
5 Technical requirements
5.1 Surface preparation
Surface preparation shall be designed in order to reach the required performances specified in this
document. It is the responsibility of the manufacturer to demonstrate the fitness for purpose of surface
preparation technology and to put in place a quality control procedure to ensure the stability of those
performances (see 7.1.2).
5.2 Finished TMPO lining
5.2.1 Appearance and continuity
The TMPO lining shall be checked in accordance with 7.1.3 and be of:
—
...
SLOVENSKI STANDARD
oSIST prEN 15655-2:2020
01-januar-2020
Cevi, fitingi in pribor iz duktilne železove litine - Zahteve in preskusne metode za
notranje organske prevleke cevi in fitingov iz duktilne železove litine - 2. del:
Termoplastična notranja prevleka cevi in fitingov iz modificiranega poliolefina
(TMPO)
Ductile iron pipes, fittings and accessories - Requirements and test methods for organic
linings of ductile iron pipes and fittings - Part 2: Thermoplastic Modified Polyolefin
(TMPO) lining of pipes and fittings
Rohre, Formstücke und Zubehörteile aus duktilem Gusseisen - Anforderungen und
Prüfverfahren für organische Auskleidungen von Rohren und Formstücken aus duktilem
Gusseisen - Teil 2: Thermoplastisch modifizierte Polyolefin (TMPO)-Auskleidung von
Rohren und Formstücken
Ta slovenski standard je istoveten z: prEN 15655-2
ICS:
23.040.10 Železne in jeklene cevi Iron and steel pipes
23.040.40 Kovinski fitingi Metal fittings
oSIST prEN 15655-2:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 15655-2:2020
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oSIST prEN 15655-2:2020
DRAFT
EUROPEAN STANDARD
prEN 15655-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2019
ICS 23.040.10; 23.040.40 Will supersede EN 15655:2009
English Version
Ductile iron pipes, fittings and accessories - Requirements
and test methods for organic linings of ductile iron pipes
and fittings - Part 2: Thermoplastic Modified Polyolefin
(TMPO) lining of pipes
Rohre, Formstücke und Zubehörteile aus duktilem
Gusseisen - Anforderungen und Prüfverfahren für
organische Auskleidungen von Rohren und
Formstücken aus duktilem Gusseisen - Teil 2:
Thermoplastisch modifizierte Polyolefin (TMPO)-
Auskleidung von Rohren und Formstücken
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 203.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15655-2:2019 E
worldwide for CEN national Members.
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oSIST prEN 15655-2:2020
prEN 15655-2:2019 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Ordering information . 9
5 Technical requirements . 9
5.1 Surface preparation . 9
5.2 Finished TMPO lining . 9
5.2.1 Appearance and continuity . 9
5.2.2 Minimum lining thickness . 9
5.3 Non-porosity . 9
5.4 Pipe ends . 10
5.5 Repairs . 10
5.6 Marking . 10
5.7 Adhesion . 10
6 Performance Requirements . 10
6.1 Chemical resistance (only for waste water) . 10
6.2 Indirect Impact strength . 11
6.3 Resistance to ovalization . 11
6.4 Elongation at break . 11
6.5 Abrasion resistance (only for waste water application) . 11
6.6 Materials in contact with water intended for human consumption . 11
7 Test Methods . 12
7.1 Routine tests . 12
7.1.1 General. 12
7.1.2 Surface preparation . 12
7.1.3 Appearance and continuity . 12
7.1.4 Lining thickness. 12
7.1.5 Pipe ends . 12
7.1.6 Repairs . 12
7.1.7 Marking . 12
7.1.8 Non-porosity . 12
7.1.9 Adhesion . 13
7.2 Performance tests . 13
7.2.1 General. 13
7.2.2 Chemical resistance (only for waste water application) . 13
7.2.3 Indirect impact strength . 13
7.2.4 Resistance to ovalization . 14
7.2.5 Elongation at break . 14
7.2.6 Abrasion resistance (only for waste water application) . 14
Annex A (informative) Quality assurance . 15
A.1 General. 15
2
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oSIST prEN 15655-2:2020
prEN 15655-2:2019 (E)
A.2 Performance test - DN grouping . 16
A.3 Quality assessment system . 17
Annex B (informative) Lining process and materials . 18
B.1 Lining application process . 18
B.2 Material properties . 18
B.2.1 General . 18
B.2.2 TMPO . 18
B.2.3 Epoxy resin . 18
B.3 Jet cleaning . 18
Annex C (informative) Packaging . 19
Bibliography . 20
3
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oSIST prEN 15655-2:2020
prEN 15655-2:2019 (E)
European foreword
This document (prEN 15655-2:2019) has been prepared by Technical Committee CEN/TC 203 “Cast
iron pipes, fittings and their joints”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 15655:2009.
The main changes to EN 15655:2009 are:
a) EN 15655 has been split into two parts. This part covers thermoplastic modified polyolefin lining of
pipes;
b) in Clause 3 the definition of “minimum lining thickness” has been revised (3.5);
c) in 5.1 the values for the surface roughness have been changed;
d) in 5.1 the surface temperature to be maintained above the dew point has been changed;
e) in 5.2.2 Tables 1 and 2 for the minimum lining thickness have been revised;
f) in 5.6 the technical requirements for the non-porosity have been revised;
g) in 5.7 the requirement for the hardness 70 Shore D has been deleted;
h) in 6.5 the ambient temperature has been increased;
i) in 6.6 a reference to the CEN/TR 16950 “Ductile iron pipes, fittings and accessories — Sanitary
characteristics and test methods” was added in a NOTE;
j) in 7.1.8 the requirements for testing of non-porosity has been revised;
k) in Table A.2 the requirements for the routine test of non-porosity (No.1) have been revised;
l) the requirements for photoaging have been deleted;
m) addition to informative annex that the manufacturer should provide infrared scans.
4
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oSIST prEN 15655-2:2020
prEN 15655-2:2019 (E)
Introduction
This document is in conformity with the general requirements already established by CEN/TC 164 in
the field of water supply (e.g. potable water) and CEN/TC 165 in the field of waste water.
In respect of potential adverse effects on the quality of water intended for human consumption, caused
by the product covered by this document:
a) No information is provided as to whether the product can be used without restriction in any of
the member states of the EU or EFTA;
b) It is noted that, while awaiting the adoption of verifiable European criteria, existing national
regulations concerning the use and/or the characteristics of this product remain in force.
5
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oSIST prEN 15655-2:2020
prEN 15655-2:2019 (E)
1 Scope
This document defines the requirements and test methods applicable to factory applied internal
thermoplastic modified polyolefin (TMPO) for the heavy duty corrosion protection of ductile iron pipes
conforming to EN 545, EN 598 and EN 969. Fittings and accessories are covered separately by
EN 14901-2.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 545, Ductile iron pipes, fittings, accessories and their joints for water pipelines - Requirements and test
methods
EN 598, Ductile iron pipes, fittings, accessories and their joints for sewerage applications - Requirements
and test methods
EN 969, Ductile iron pipes, fittings, accessories and their joints for gas pipelines - Requirements and test
methods
EN 14901-1, Ductile iron pipes, fittings and accessories - Epoxy coating (heavy duty) of ductile iron fittings
and accessories - Requirements and test methods
EN 14901-2, Ductile iron pipes, fittings and accessories - TMPO coating (heavy duty) of ductile iron fittings
and accessories - Requirements and test methods
EN ISO 4624, Paints and varnishes - Pull-off test for adhesion (ISO 4624)
EN ISO 4628-2, Paints and varnishes - Evaluation of degradation of coatings. Designation of quantity and
size of defects, and of intensity of uniform changes in appearance. Assessment of degree of blistering
EN ISO 62, Plastics — Determination of water absorption (ISO 62)
EN ISO 527-3, Plastics — Determination of tensile properties – Part 3: Test conditions for films and sheets
(ISO 527-3)
EN ISO 6272-1, Paints and varnishes - Rapid-deformation (impact resistance) tests. Falling-weight test,
large-area indenter
EN ISO 8501-1, Preparation of steel substrates before application of paints and related products — Visual
assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel
substrates and of steel substrates after overall removal of previous coatings (ISO 8501-1)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
6
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oSIST prEN 15655-2:2020
prEN 15655-2:2019 (E)
3.1
ductile iron
cast iron used for pipes, fittings and accessories in which graphite is present substantially in spheroidal
form
3.2
adhesion
force per unit area, applied perpendicular to the surface, which is necessary to separate the lining from
its substrate
3.3
indirect impact strength
impact energy applied from outside of the pipe with deformation to which a lining can withstand
without damage under defined test conditions
3.4
hardness
resistance of the lining to the penetration of a ball under defined test conditions
3.5
minimum lining thickness
minimum value of the lining thickness measured at the lined item
3.6
non-porosity
absence of holidays in a high voltage test under defined test conditions
3.7
TMPO lining
factory applied lining which consists of TMPO on the inside of the pipe
Key
1 gasket seat
2 pipe barrel
3 spigot end
4 lining
5 internal socket profile
Figure 1 — Location of the defined pipe areas
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oSIST prEN 15655-2:2020
prEN 15655-2:2019 (E)
Key
1 lining
2 internal socket profile
Figure 2 — Location of the defined fitting areas
3.8
thermoplastic acid modified polyolefin powder material (TMPO powder)
polyolefin resin in which a significant amount of carbon hydrogen chemical bonds are replaced by
carboxylic acid functional groups
[SOURCE: EN 14901-2:2019]
3.9
specific lining resistance
surface related electric resistance of the lining perpendicular to the pipe wall
3.10
performance test
test which is done once and is repeated according to a schedule or after relevant change of lining
material and/or material supplier or change in process application
3.11
routine test
test carried out to control the manufacturing process with a frequency defined by the manufacturer
3.12
designated zones
areas of a casting where because of jointing tolerance restrictions, testing difficulties, or shrouding by a
gasket, etc. a lower standard of coating performance is unavoidable
Note 1 to entry: For the purpose of this standard these areas are defined as:
— joint areas;
— bolt holes;
— permitted markings;
— ribs;
— edges.
Note 2 to entry: Where considered necessary, these zones may be protected by appropriate additional corrosion
protection measures during or after installation. However, such measures are not part of this document.
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oSIST prEN 15655-2:2020
prEN 15655-2:2019 (E)
4 Ordering information
The following information shall be supplied by the purchaser to the manufa
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