EN 15542:2026
(Main)Ductile iron pipes, fittings and accessories - External cement mortar coating for pipes - Requirements and test methods
Ductile iron pipes, fittings and accessories - External cement mortar coating for pipes - Requirements and test methods
This document specifies the requirements and test methods applicable to factory applied cement mortar coatings for the external corrosion protection of ductile iron pipes conforming to EN 545, EN 598 and EN 969 for use at operating temperatures up to 50 °C.
Coatings according to this document are suitable for soils of all common corrosion loads and trenchless applications.
Special activities on site such as joint protection, tapping, clamping, etc. could affect the corrosion protection properties of the cement mortar coating. These operations are normally covered in the laying instructions supplied by the manufacturers of pipes, clamps, house connection saddles, etc. and any relevant users' procedures. Such instructions are not part of this document.
Rohre, Formstücke und Zubehör aus duktilem Gusseisen - Zementmörtelumhüllung von Rohren - Anforderungen und Prüfverfahren
Dieses Dokument legt die Anforderungen und Prüfverfahren fest für werkseitig aufgebrachte Zementmörtelumhüllungen für den äußeren Korrosionsschutz von Rohren aus duktilem Gusseisen nach EN 545, EN 598 und EN 969 für die Verwendung bei Betriebstemperaturen bis 50 °C.
Umhüllungen nach diesem Dokument sind für alle Böden mit üblichen Korrosionsbelastungen und für grabenlose Anwendungen geeignet.
Spezielle vor Ort durchgeführte Maßnahmen, wie z. B. Schutz der Verbindungen, Anbohren, Herstellen von Klemmverbindungen usw., könnten die Korrosionsschutzeigenschaften der Zementmörtelumhüllung beeinflussen. Diese Arbeiten sind normalerweise in den Einbauanleitungen der Hersteller von Rohren, Klemmelementen, Hausanschlussstücken usw. und allen einschlägigen Arbeitsanleitungen für den Anwender angegeben. Diese Anleitungen sind nicht Teil dieses Dokuments.
Tuyaux, raccords et accessoires en fonte ductile - Revêtement extérieur en mortier de ciment pour tuyaux - Prescriptions et méthodes d'essai
Le présent document spécifie les exigences et les méthodes d’essai applicables aux revêtements en mortier de ciment appliqués en usine pour protéger de la corrosion extérieure les tuyaux en fonte ductile conformes à l’EN 545, l’EN 598 et l’EN 969 et destinés à être utilisés à des températures de service allant jusqu’à 50 °C.
Les revêtements selon le présent document sont adaptés aux sols de toutes les applications en milieu corrosif et sans tranchée courantes.
Des activités particulières effectuées sur le site telles que la protection des joints, le taraudage, le bridage etc. peuvent avoir une incidence sur les propriétés de protection contre la corrosion du revêtement en mortier de ciment. Ces opérations figurent normalement dans les instructions relatives à la pose fournies par les fabricants de tuyaux, brides et piquages à selle pour branchements domestiques etc. ainsi que dans les procédures pertinentes des utilisateurs. Ces instructions ne font pas partie intégrante du présent document.
Cevi, fitingi in pribor iz duktilne železove litine - Zunanje prevleke cevi iz cementne malte - Zahteve in preskusne metode
Ta dokument določa zahteve in preskusne metode, ki veljajo za tovarniško nanesene cementne malte kot zaščito pred korozijo za duktilne železne cevi, ki so skladne z EN 545, EN 598 in EN 969, za uporabo pri obratovalnih temperaturah do 50 °C.
Prevleke v skladu s tem dokumentom so primerne za tla z vsemi običajnimi korozijskimi obremenitvami in za brezkopne aplikacije.
Posebne dejavnosti na terenu, kot so zaščita spojev, vrtanje, pritrjevanje itd., lahko vplivajo na lastnosti zaščite pred korozijo cementne malte. Te operacije so običajno zajete v navodilih za polaganje, ki jih zagotavljajo proizvajalci cevi, objemk, sedel za priključitev hišnih priključkov itd., ter v ustreznih postopkih uporabnikov. Takšna navodila niso del tega dokumenta.
General Information
- Status
- Published
- Publication Date
- 03-Mar-2026
- Technical Committee
- CEN/TC 203 - Cast iron pipes, fittings and their joints
- Drafting Committee
- CEN/TC 203/WG 8 - Coatings for pipes, fittings and accessories
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 04-Mar-2026
- Due Date
- 09-Aug-2022
- Completion Date
- 04-Mar-2026
Relations
- Effective Date
- 18-Jan-2023
Overview
EN 15542:2026 is the European Standard developed by CEN that defines the requirements and test methods for factory-applied external cement mortar coatings used on ductile iron pipes, fittings, and accessories. These coatings are intended for external corrosion protection of ductile iron pipes conforming to EN 545 (water pipelines), EN 598 (sewerage), and EN 969 (gas pipelines), ensuring performance at operating temperatures up to 50 °C. The standard covers coatings suitable for all common soil corrosion loads and trenchless installation methods, providing robust protection in challenging environments.
Key Topics
Scope and Purpose:
EN 15542:2026 establishes a harmonized approach to the external cement mortar coating of ductile iron pipes, ensuring reliable corrosion protection for pipes used in water, wastewater, and gas infrastructure.Coating System:
The external cement mortar coating typically consists of:- A zinc or zinc alloy layer for basic corrosion protection
- A cement mortar layer, possibly reinforced with fibers and additives
- Optional intermediate layers such as primers, finishing resins, pigments, and surface tissue
Technical and Performance Requirements:
- Minimum and average coating thickness of the cement mortar layer
- Adhesion, impact resistance, and specific pore transition resistance of coatings
- Raw material specifications for cement, aggregates, and fibers according to relevant European standards
- Quality assurance and process control requirements for manufacturers
Testing Methodologies:
- Routine factory tests for coating thickness, appearance, pipe marking, and repair quality
- Performance tests for adhesion, impact resistance, and constituent conformity
- Reference to established methods (e.g., EN ISO 4624 for adhesion and EN ISO 527 for fiber strength)
Quality Management:
Emphasizes quality assessment systems, with reference to EN ISO 9001, for ongoing process control and verification.
Applications
Water Pipelines:
Cement mortar-coated ductile iron pipes are widely used in potable water transmission and distribution systems, offering long-term corrosion protection even in aggressive soils.Sewerage and Wastewater Systems:
The robust coating system provides durability in harsh chemical environments, making it suitable for sewer and drainage infrastructure.Gas Pipelines:
Compliance with EN 969 ensures that pipelines carrying gaseous fuels are protected from external corrosion.Trenchless Installations:
The mechanical stability and field-proven resistance of cement mortar coatings make these pipes a preferred solution for trenchless laying techniques, reducing installation costs and environmental impact.General Civil Engineering:
Used in various buried utility applications where ductile iron pipes require enhanced protection against soil-induced corrosion.
Related Standards
EN 15542:2026 references and aligns with several core European and international standards, including:
- EN 545: Ductile iron pipes, fittings, accessories, and joints for water pipelines – Requirements and test methods
- EN 598: Ductile iron pipes, fittings, accessories, and joints for sewerage – Requirements and test methods
- EN 969: Ductile iron pipes, fittings, accessories, and joints for gas pipelines – Requirements and test methods
- EN 197-1 / EN 197-2: Cement composition, specification, and conformity criteria
- EN 13055: Lightweight aggregates for use in mortar coatings
- EN ISO 4624: Pull-off test for adhesion
- EN ISO 9001: Quality management systems
These standards together ensure comprehensive product quality, interoperability, and alignment across various pipeline applications in Europe.
Keywords: ductile iron pipes, external cement mortar coating, corrosion protection, EN 15542:2026, CEN, trenchless applications, water pipelines, sewerage, gas pipelines, factory-applied coatings, standard requirements, ductile iron fittings, pipeline corrosion standards.
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Frequently Asked Questions
EN 15542:2026 is a standard published by the European Committee for Standardization (CEN). Its full title is "Ductile iron pipes, fittings and accessories - External cement mortar coating for pipes - Requirements and test methods". This standard covers: This document specifies the requirements and test methods applicable to factory applied cement mortar coatings for the external corrosion protection of ductile iron pipes conforming to EN 545, EN 598 and EN 969 for use at operating temperatures up to 50 °C. Coatings according to this document are suitable for soils of all common corrosion loads and trenchless applications. Special activities on site such as joint protection, tapping, clamping, etc. could affect the corrosion protection properties of the cement mortar coating. These operations are normally covered in the laying instructions supplied by the manufacturers of pipes, clamps, house connection saddles, etc. and any relevant users' procedures. Such instructions are not part of this document.
This document specifies the requirements and test methods applicable to factory applied cement mortar coatings for the external corrosion protection of ductile iron pipes conforming to EN 545, EN 598 and EN 969 for use at operating temperatures up to 50 °C. Coatings according to this document are suitable for soils of all common corrosion loads and trenchless applications. Special activities on site such as joint protection, tapping, clamping, etc. could affect the corrosion protection properties of the cement mortar coating. These operations are normally covered in the laying instructions supplied by the manufacturers of pipes, clamps, house connection saddles, etc. and any relevant users' procedures. Such instructions are not part of this document.
EN 15542:2026 is classified under the following ICS (International Classification for Standards) categories: 23.040.01 - Pipeline components and pipelines in general. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 15542:2026 has the following relationships with other standards: It is inter standard links to EN 15542:2008. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 15542:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2026
Nadomešča:
SIST EN 15542:2008
Cevi, fitingi in pribor iz duktilne železove litine - Zunanje prevleke cevi iz cementne
malte - Zahteve in preskusne metode
Ductile iron pipes, fittings and accessories - External cement mortar coating for pipes -
Requirements and test methods
Rohre, Formstücke und Zubehör aus duktilem Gusseisen - Zementmörtelumhüllung von
Rohren - Anforderungen und Prüfverfahren
Tuyaux, raccords et accessoires en fonte ductile - Revêtement extérieur en mortier de
ciment pour tuyaux - Prescriptions et méthodes d'essai
Ta slovenski standard je istoveten z: EN 15542:2026
ICS:
23.040.10 Železne in jeklene cevi Iron and steel pipes
23.040.40 Kovinski fitingi Metal fittings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 15542
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2026
EUROPÄISCHE NORM
ICS 23.040.01 Supersedes EN 15542:2008
English Version
Ductile iron pipes, fittings and accessories - External
cement mortar coating for pipes - Requirements and test
methods
Tuyaux, raccords et accessoires en fonte ductile - Rohre, Formstücke und Zubehör aus duktilem
Revêtement extérieur en mortier de ciment pour Gusseisen - Zementmörtelumhüllung von Rohren -
tuyaux - Prescriptions et méthodes d'essai Anforderungen und Prüfverfahren
This European Standard was approved by CEN on 12 January 2026.
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, Türkiye 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
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15542:2026 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Ordering information . 8
5 Technical requirements . 9
5.1 Zinc or zinc alloy coating . 9
5.2 Fresh cement mortar layer thickness. 9
5.3 Pipe ends . 9
5.4 Appearance of cured cement mortar coating . 9
5.5 Thickness of cured cement mortar coating . 9
5.6 Repairs . 9
5.7 Marking . 9
6 Performance requirements . 10
6.1 Cement mortar constituents . 10
6.1.1 General. 10
6.1.2 Cement . 10
6.1.3 Aggregates . 10
6.1.4 Fibres . 10
6.1.5 Surface tissue . 10
6.1.6 Saponification resistance of organic additives . 10
6.2 Adhesion . 10
6.3 Impact resistance . 10
6.4 Specific pore transition resistance of the intermediate layer . 11
7 Test methods . 11
7.1 Routine tests . 11
7.1.1 General. 11
7.1.2 Zinc or zinc alloy coating . 11
7.1.3 Thickness of the cement mortar layer . 11
7.1.4 Pipe ends . 11
7.1.5 Appearance and continuity of cured cement mortar coating . 11
7.1.6 Thickness of the cured cement mortar coating . 11
7.1.7 Repairs . 11
7.1.8 Marking . 11
7.2 Performance tests . 11
7.2.1 General. 11
7.2.2 Constituents . 12
7.2.3 Adhesion . 12
7.2.4 Impact strength . 12
7.2.5 Specific pore transition resistance of the intermediate layer . 13
Annex A (informative) Quality assurance . 16
Annex B (informative) Application process . 18
Annex C (informative) Experiences from field and investigation . 19
Bibliography . 20
European foreword
This document (EN 15542:2026) 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 September 2026, and conflicting national standards shall
be withdrawn at the latest by September 2026.
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 15542:2008.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, Türkiye 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 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.
1 Scope
This document specifies the requirements and test methods applicable to factory applied cement mortar
coatings for the external corrosion protection of ductile iron pipes conforming to EN 545, EN 598 and
EN 969 for use at operating temperatures up to 50 °C.
Coatings according to this document are suitable for soils of all common corrosion loads and trenchless
applications.
Special activities on site such as joint protection, tapping, clamping, etc. could affect the corrosion
protection properties of the cement mortar coating. These operations are normally covered in the laying
instructions supplied by the manufacturers of pipes, clamps, house connection saddles, etc. and any
relevant users' procedures. Such 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 197-1, Cement — Part 1: Composition, specifications and conformity criteria for common cements
EN 197-2, Cement — Part 2: Assessment and verification of constancy of performance
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 13055, Lightweight aggregates
EN 14020-1, Reinforcements — Specification for textile glass rovings — Part 1: Designation
EN 14020-2, Reinforcements — Specification for textile glass rovings — Part 2: Methods of test and general
requirements
EN ISO 527-1, Plastics — Determination of tensile properties — Part 1: General principles (ISO 527-1)
EN ISO 527-2, Plastics — Determination of tensile properties — Part 2: Test conditions for moulding and
extrusion plastics (ISO 527-2)
EN ISO 4624, Paints and varnishes — Pull-off test for adhesion (ISO 4624)
ISO 695, Glass — Resistance to attack by a boiling aqueous solution of mixed alkali — Method of test and
classification
ISO 719, Glass — Hydrolytic resistance of glass grains at 98 °C — Method of test and classification
ISO 2591-1, Test sieving — Part 1: Methods using test sieves of woven wire cloth and perforated metal plate
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
ductile iron
cast iron used for pipes, fittings and accessories in which graphite is present substantially in spheroidal
form
3.2
cement mortar coating
external multi-layer coating system for ductile iron pipes, principally consisting of at least the two
following layers:
— zinc or zinc alloy coating
— cement mortar layer
Note 1 to entry: Polymer additive, primer, pigments, surface tissue, finishing layer on zinc or zinc alloy coating can
be applied depending on the application method used by the different manufacturers.
3.3
zinc or zinc alloy coating
coating intended to protect the ductile iron and applied to the pipe by means of a thermal spraying
process
3.4
primer
resin which serves as adhesive to the cement mortar layer
3.5
intermediate layer
organic layer between the zinc or zinc alloy coating and the cement mortar layer, i. e. finishing layer plus
primer
3.6
cement mortar layer
cement mortar system reinforced with or without fibres
Note 1 to entry: It can be polymer modified and/or pigmented and can be covered with a layer of surface tissue.
3.7
fibre
inert reinforcement, which is added to the cement mortar layer
EXAMPLE Alkali resistant glass fibres, special electrical grade glass fibres (E-type glass), polymeric fibres.
3.8
pigment
material added to the fresh cement mortar in order to identify the medium to be transported
3.9
polymer additive
organic material added to the fresh cement mortar in order to improve the workability and to reduce the
water/cement ratio and to improve the performance of the cement mortar layer
3.10
surface tissue
polymeric tissue in form of strip with a net-like structure, which is applied to the cement mortar layer
3.11
finishing layer
layer of synthetic resin compatible with zinc or zinc alloy
Note 1 to entry: The cement mortar coating layer can be applied on pipes with finishing layer.
3.12
minimum coating thickness
lower limit specified for the cement mortar coating thickness
3.13
impact strength
impact energy which a coating can withstand without damage under specified test conditions
3.14
adhesion
force per unit area, applied perpendicular to the surface, which is necessary to separate the coating from
its substrate
3.15
performance test
test which is done once and is repeated according to a schedule or after relevant change of raw material
supplier or relevant change in process application
3.16
routine test
test carried out to control the manufacturing process with a frequency specified by the manufacturer
3.17
specific pore transition resistance of the intermediate layer
surface related electric alternating current resistance of the intermediate layer perpendicular to the pipe
wall
4 Ordering information
The following information shall be supplied to the manufacturer by the purchaser:
Ductile iron pipes according to EN 545, EN 598 or EN 969, but coated with cement mortar coating by
reference to this document.
EXAMPLE 5 000 m of ductile iron pipe DN 300 according to EN 545; external cement mortar coating according
to EN 15542.
5 Technical requirements
5.1 Zinc or zinc alloy coating
The zinc or zinc alloy coating shall comply with the requirements specified in EN 545, EN 598 or EN 969.
The zinc or zinc alloy coating shall be dry and free from dirt, oil and grease.
5.2 Fresh cement mortar layer thickness
The nominal
...
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