EN 14628-1:2020

SLOVENSKI STANDARD
01-september-2020
Nadomešča:
SIST EN 14628:2006
Cevi, fitingi in pribor iz duktilne železove litine - Zahteve in preskusne metode - 1.
del: Polietilenska (PE) zunanja prevleka
Ductile iron pipes, fittings and accessories - Requirements and test methods - Part 1: PE
coatings
Rohre, Formstücke und Zubehörteile aus duktilem Gusseisen - Anforderungen und
Prüfverfahren - Teil 1: Polyethylenumhüllung von Rohren
Tuyaux, raccords et accessoires en fonte ductile - Prescriptions et méthodes d’essai -
Partie 1 : Revêtements en PE
Ta slovenski standard je istoveten z: EN 14628-1:2020
ICS:
23.040.10 Železne in jeklene cevi Iron and steel pipes
23.040.40 Kovinski fitingi Metal fittings
25.220.01 Površinska obdelava in Surface treatment and
prevleke na splošno coating in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 14628-1
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2020
EUROPÄISCHE NORM
ICS 23.040.10; 23.040.40 Supersedes EN 14628:2005
English Version
Ductile iron pipes, fittings and accessories - Requirements
and test methods - Part 1: PE coatings
Tuyaux, raccords et accessoires en fonte ductile - Rohre, Formstücke und Zubehörteile aus duktilem
Prescriptions et méthodes d'essai - Partie 1 : Gusseisen - Anforderungen und Prüfverfahren - Teil 1:
Revêtements en PE Polyethylenumhüllung von Rohren
This European Standard was approved by CEN on 9 April 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 14628-1:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Ordering information . 8
4.1 General. 8
4.2 Mandatory . 8
4.3 Options to be indicated by the purchaser . 8
5 Technical requirements . 9
5.1 Surface condition . 9
5.2 Material properties . 9
5.3 Finished polyethylene coating . 9
5.4 Repairs . 11
5.5 Marking . 11
5.6 Peeling strength . 11
5.7 Non-porosity . 11
6 Performance requirements . 11
6.1 Impact strength . 11
6.2 Indentation resistance . 12
6.3 Elongation at break . 12
6.4 Specific coating resistance . 13
6.5 Heat ageing . 13
6.6 Light ageing . 13
7 Test methods . 13
7.1 Peel resistance of the adhesive . 13
7.2 Coating thickness . 15
7.3 Non-porosity . 15
7.4 Impact strength . 15
7.5 Indentation resistance . 16
7.6 Elongation at break . 16
7.7 Specific coating resistance . 16
7.8 Heat ageing . 17
7.9 Light ageing . 17
Annex A (informative) Quality assurance . 18
A.1 General. 18
A.2 Performance test . 20
A.3 Quality assessment system . 20
Annex B (informative) Application process . 21
B.1 General. 21
B.2 Tubular extrusion method . 21
B.3 Flat die wrapping extrusion method . 22
Annex C (informative) Coating material . 23
C.1 General . 23
C.2 Polyethylene . 23
C.3 Adhesive . 23
Bibliography . 24

European foreword
This document (EN 14628-1:2020) 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 January 2021, and conflicting national standards shall
be withdrawn at the latest by January 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 14628:2005.
In comparison with the previous edition, the following technical modifications have been made:
a) EN 14628 has been split into two parts. This part covers factory applied extruded polyethylene
coatings for the external corrosion protection of ductile iron 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.
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) this document provides no information as to whether the product can be used without restriction
in any of the member states of the EU or EFTA;
b) it is also 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.
1 Scope
This document specifies the requirements and test methods applicable to factory applied extruded
polyethylene coatings for the external corrosion protection of ductile iron pipes according to EN 545,
EN 598 and EN 969 for use at operating temperatures up to 50 °C.
This document is not applicable to ductile iron pipes protected with thin PE sleeve. Special works at site
like drilling, tapping, etc. can influence the corrosion protection properties. Those job steps are
intended to be included in the instructions of pipe saddle and accessory manufacturers and all other
essential installation instructions. These instructions are not part of this document.
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 application - Requirements
and test methods
EN 969, Ductile iron pipes, fittings, accessories and their joints for gas pipelines – Requirements and test
methods
EN 1238, Adhesives - Determination of the softening point of thermoplastic adhesives (ring and ball)
EN ISO 527-1,
...