oSIST prEN 598:2017

Coated and lined ductile iron pipes, fittings and their joints for sewerage and drainage applications - Products characteristics and test and assessment methods

This European Standard specifies the products characteristics and associated test and assessment methods applicable to coated and lined ductile iron pipes, coated and lined fittings and joints which include (non-exhaustive list) coated and lined accessories such as collar, tees, saddles, bends, tapers, flanged socket.
Intended use: Gravity and pressure drains and sewers:
-   operating without pressure, or with positive or negative pressure;
-   installed below or above ground;
-   for conveyance of surface water, wastewater in separate systems or in combined systems.

Umhüllte und ausgekleidete Rohre, Formstücke, Zuberhörteile aus duktilem Gußeisen und ihre Verbindungen für Abwasser-Entsorgung - Anforderungen und Prüfverfahren

Diese Europäische Norm legt die Produktmerkmale und zugehörigen Prüf  und Bewertungsverfahren für umhüllte und ausgekleidete Rohre aus duktilem Gusseisen, umhüllte und ausgekleidete Formstücke und Verbindungen fest, zu denen (Aufzählung nicht abschließend) umhüllte und ausgekleidete Zubehörteile wie Kupplungen, Abzweige, Schellen, Bögen, Übergangsstücke, Flanschmuffenstücke gehören.
Vorgesehener Verwendungszweck: Schwerkraft  und Druck Abwasserleitungen und  kanäle:
-   zum Betrieb als Freispiegelleitung oder mit positivem oder negativem Druck;
-   die erdüberdeckt oder oberirdisch eingebaut werden,
zum Transport von Oberflächenwasser und Abwasser in Trenn  oder in Mischwassersystemen.

Tuyaux, raccords et accessoires en fonte ductile et leurs assemblages pour l'assainissement - Prescriptions et méthodes d'essais

La présente Norme européenne spécifie les caractéristiques des produits et les méthodes d’essai et d’évaluation associées applicables aux tuyaux et raccords en fonte ductile revêtus extérieurement et intérieurement, ainsi qu’aux assemblages comprenant (liste non ¬exhaustive) les accessoires revêtus extérieurement et intérieurement tels que les manchons, les tés, les selles, les coudes, les cônes et les brides-emboîtements.
Ces tuyaux, raccords et assemblages sont destinés aux branchements et aux collecteurs d’assainissement gravitaires et sous pression :
-   fonctionnant sans pression, ou sous pression positive ou négative ;
-   mis en oeuvre dans le sol ou en élévation ;
pour transporter les eaux en surface et les eaux usées en système séparatif ou unitaire.

Prevlečene cevi, fitingi in spoji iz duktilne železove litine za odvodnjavanje in kanalizacijo - Karakteristike proizvoda ter metode za preskušanje in ocenjevanje

General Information

• Status: Not Published
• Public Enquiry End Date: 03-Jan-2018
• ICS: 23.040.10 - Iron and steel pipes
• ICS: 23.040.40 - Metal fittings
• ICS: 93.030 - External sewage systems
• Technical Committee: TLP - Pressure vessels
• Current Stage: 98 - Abandoned project (Adopted Project)
• Start Date: 04-Oct-2019
• Due Date: 09-Oct-2019
• Completion Date: 04-Oct-2019
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 93/38/EEC - Procurement procedures of entities operating in the water, energy, transport and telecommunications sectors
• Mandate: M/131 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on pipes, tanks and ancillaries, not in contact with water intended for human consumption
• Ref Project: prEN 598 - Coated and lined ductile iron pipes, fittings and their joints for sewerage and drainage applications - Products characteristics and test and assessment methods

Relations

• Revises: SIST EN 598:2008+A1:2009 - Ductile iron pipes, fittings, accessories and their joints for sewerage applications - Requirements and test methods
• Effective Date: 01-Dec-2017

Overview

oSIST prEN 598:2017 is a European Standard developed by CEN, specifying the characteristics, test, and assessment methods for coated and lined ductile iron pipes, fittings, and their joints intended for sewerage and drainage applications. This standard is essential for ensuring quality, durability, and safety of products used in gravity and pressure drainage systems, including both above and below ground installations.

This standard covers coated and lined ductile iron pipes, fittings, and accessories such as collars, tees, saddles, bends, tapers, and flanged sockets. It targets applications involving both positive and negative pressures for the conveyance of surface water, wastewater, and combined sewer systems.

Key Topics

• Product Characteristics

  • Reaction to fire
  • Longitudinal bending strength
  • Internal pressure strength
  • Maximum admissible deformation load
  • Dimensional accuracy
  • Tightness to gas and liquid
  • Release of dangerous substances
  • Impact resistance

• Testing and Assessment Methods

  • Methods for pipes and fittings, including fire reaction, bending strength, pressure strength, and tightness tests
  • Procedures for assessing release of hazardous substances
  • Impact resistance and durability evaluations

• Factory Production Control (FPC)

  • Requirements and procedures to ensure continuous product conformity
  • Type testing and sampling criteria
  • Documentation and reporting standards

• Marking, Labelling, and Packaging

  • Guidelines for product identification and traceability
  • Packaging methods to protect products during transport and storage

• Supplementary Guidance

  • Mechanical and chemical properties of linings
  • Coating types with focus on zinc coatings, high alumina cement mortar, and alternative coatings
  • Resistance against jet cleaning and root penetration
  • Environmental aspects including life cycle assessment and recycling

Applications

oSIST prEN 598:2017 applies primarily to sewerage and drainage infrastructure, offering robust specifications that support:

• Gravity Sewers and Drains
  Optimized for systems operating without pressure; suitable for transporting wastewater and surface water below and above ground.

• Pressure Drainage Systems
  Suitable for installations experiencing positive or negative pressure, common in complex sewer networks.

• Urban Infrastructure Projects
  Enhances safety and reliability for municipal wastewater management, stormwater control, and combined sewer solutions.

• Industrial and Commercial Drainage
  Use in wastewater conveyance systems within commercial properties or industrial complexes requiring durable ductile iron piping systems.

By adhering to oSIST prEN 598:2017, engineers, manufacturers, and contractors ensure that ductile iron pipes and fittings meet high durability, safety, and environmental standards crucial for modern drainage and sewerage systems.

Related Standards

• EN 598:2007 + A1:2009 – Previous version of this standard, now superseded by oSIST prEN 598:2017:2017
• CEN/TC 203 Standards – A family of standards covering ductile iron pipes and fittings for various water and wastewater applications
• ISO 2531 – International standards for ductile iron pipes worldwide complementing the European framework
• EN 14368 – Specifies requirements related to joints for ductile iron pipes used in water and sewage systems
• Environmental Standards – Relevant ISO and EN standards addressing life cycle assessment (LCA) and environmental impact for pipeline materials

---

Keywords: oSIST prEN 598:2017, ductile iron pipes, coated and lined pipes, sewerage systems, drainage applications, pipe fittings, product characteristics, test methods, factory production control, wastewater conveyance, pressure drainage, gravity drains, CEN standards.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2017
3UHYOHþHQHFHYLILWLQJLLQVSRMLL]GXNWLOQHåHOH]RYHOLWLQH]DRGYRGQMDYDQMHLQ
NDQDOL]DFLMR.DUDNWHULVWLNHSURL]YRGDWHUPHWRGH]DSUHVNXãDQMHLQRFHQMHYDQMH
Coated and lined ductile iron pipes, fittings and their joints for sewerage and drainage
applications - Products characteristics and test and assessment methods
Umhüllte und ausgekleidete Rohre, Formstücke, Zuberhörteile aus duktilem Gußeisen
und ihre Verbindungen für Abwasser-Entsorgung - Anforderungen und Prüfverfahren
Tuyaux, raccords et accessoires en fonte ductile et leurs assemblages pour
l'assainissement - Prescriptions et méthodes d'essais
Ta slovenski standard je istoveten z: prEN 598
ICS:
23.040.10 Železne in jeklene cevi Iron and steel pipes
23.040.40 Kovinski fitingi Metal fittings
93.030 Zunanji sistemi za odpadno External sewage systems
vodo
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2017
ICS 23.040.05; 23.040.10; 23.040.40 Will supersede EN 598:2007+A1:2009
English Version
Coated and lined ductile iron pipes, fittings and their joints
for sewerage and drainage applications - Products
characteristics and test and assessment methods
Tuyaux, raccords et accessoires en fonte ductile et Umhüllte und ausgekleidete Rohre, Formstücke,
leurs assemblages pour l'assainissement - Zuberhörteile aus duktilem Gußeisen und ihre
Prescriptions et méthodes d'essais Verbindungen für Abwasser-Entsorgung -
Anforderungen und Prüfverfahren
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 598:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviations . 7
3.1 Terms and definitions . 8
3.2 Abbreviations . 12
4 Product characteristics . 12
4.1 Coated and lined ductile iron pipes . 12
4.1.1 Reaction to fire . 12
4.1.2 Longitudinal bending strength . 12
4.1.3 Internal pressure strength . 12
4.1.4 Maximum load for admissible deformation . 12
4.1.5 Dimension . 12
4.1.6 Tightness of pipes: gas and liquid . 15
4.1.7 Release of dangerous substances . 16
4.1.8 Impact resistance . 16
4.2 Coated and lined fittings and joints . 17
4.2.1 Reaction to fire . 17
4.2.2 Internal pressure strength . 17
4.2.3 Dimensions . 17
4.2.4 Tightness: gas and liquid . 17
4.2.5 Release of dangerous substances . 17
5 Testing, assessment and sampling methods . 18
5.1 Test methods for pipes . 18
5.1.1 Test for reaction to fire . 18
5.1.2 Test for longitudinal bending strength . 18
5.1.3 Test for Internal pressure strength . 19
5.1.4 Test for maximum load for admissible deformation . 20
5.1.5 Test for dimension . 23
5.1.6 Test for Tightness: gas and liquid . 24
5.1.7 Test for Release of dangerous substances . 24
5.1.8 Test for Impact resistance . 25
5.2 Test methods for fittings and joints . 26
5.2.1 Test for reaction to fire . 26
5.2.2 Test for Internal pressure strength . 26
5.2.3 Test for dimensions . 26
5.2.4 Test for Tightness: gas and liquid . 27
5.2.5 Test for Release of dangerous substances . 29
6 Assessment and verification of the constancy of performance . 29
6.1 General . 29
6.2 Type testing . 29
6.2.1 General . 29
6.2.2 Test samples, testing and compliance criteria . 31
6.2.3 Test reports . 32
6.3 Factory production control (FPC) . 32
6.3.1 General . 32
6.3.2 Requirements . 33
6.3.3 Product specific requirements . 35
6.3.4 Procedure for modifications . 35
6.3.5 One-off products, pre-production products (e.g. prototypes) and products produced
in very low quantity . 36
7 Marking, labelling and packaging . 36
Annex A (normative) Mechanical and chemical properties of linings. 38
A.1 Test results . 38
A.1.1 Abrasion resistance . 38
A.1.1.1 Cement mortar lining . 38
A.1.1.2 Alternative Linings . 38
A.1.2 Chemical resistance to effluents . 39
A.1.2.1 Test assembly . 39
A.1.2.2 Test procedure . 39
A.1.2.3 Measurements . 39
A.1.2.4 Test results . 40
A.1.2.5 Compressive strength of cement mortar lining . 40
Annex B (informative) Coatings. 41
B.1 List of most used coatings . 41
B.1.1 General . 41
B.1.2 External coating of zinc with finishing layer . 41
B.1.2.1 General . 41
B.1.2.2 Zinc mass . 41
B.1.2.3 Thickness of paint coatings . 42
B.1.2.4 External coating . 42
B.1.2.5 Repairs . 43
B.1.3 Internal lining with high alumina cement mortar . 43
B.1.3.1 General . 43
B.1.3.2 Thickness and surface condition . 43
B.1.3.3 Repairs . 44
B.1.3.4 Coating of the joint areas . 44
B.2 Alternative coatings . 44
B.2.1 Pipes . 44
B.2.2 Fittings . 45
B.3 Field of use in relation to characteristics of soils . 46
B.3.1 Standard coating . 46
B.3.2 Alloy of zinc and aluminium with or without other metals . 46
B.3.3 Reinforced coatings . 46
Annex C (informative) Resistance for jet cleaning and root penetration . 48
C.1 Jet cleaning . 48
C.2 Root penetration resistance of flexible joints. 48
C.2.1 General . 48
C.2.2 Test conditions . 48
C.2.3 Test method for determination of the resistance of flexible joints to root penetration . 48
Annex D (informative) Environmental aspects . 51
D.1 General . 51
D.2 General guidance . 51
D.3 Life cycle approach (LCA) for ductile iron pipe sewage systems . 52
D.4 Assessment of environmental impacts of ductile iron pipe sewage systems . 52
D.5 Overview of environmental aspects of ductile iron pipe systems in sewerage
applications . 52
D.5.1 General . 52
D.5.2 Ductile iron pipe systems for pressurised sewers . 53
D.5.2.1 Energy savings . 53
D.5.2.2 Recycling . 53
D.5.3 Ductile iron pipes for gravity sewerage applications . 54
D.5.3.1 Construction and service stages . 54
D.5.3.2 Recycling . 54
D.5.4 Trenchless applications of ductile iron pipe sewerage systems . 54
D.5.4.1 General . 54
D.5.4.2 Advantages . 54
D.5.4.3 Direct savings . 54
D.5.4.4 Economic savings . 55
Annex E (informative) Pressures for sewers. 56
E.1 General . 56
E.2 Socket and spigot pipes for pressure sewers . 56
E.3 Fittings for socketed joints . 58
E.4 Flanged pipes and fittings for flanged joints . 58
Annex F (informative) Installation . 59
Annex G (normative) Method of calculation of gross calorific potential of external coatings
for the range of products . 60
Annex H (informative) SBI test mounting and fixing . 62
Annex I (informative) Joint testing . 65
I.1 Test for tightness: liquid and gas . 65
I.1.1 Water leakage: test conditions and criteria . 65
I.1.2 Test for tightness: liquid and gas . 65
I.1.2.1 Leak tightness of components for gravity pipelines . 65
I.1.2.2 Leak tightness of flexible joints to negative internal pressure . 65
I.1.2.3 Leak tightness of flexible joints to dynamic internal pressure . 65
I.1.2.4 Flanged joints with screwed or welded flanges . 66
I.1.2.5 Works leak tightness test for pipes fittings for positive pressure pipelines . 67
I.1.2.5.1 General . 67
I.1.2.5.2 Centrifugally cast pipes . 67
I.1.2.5.3 Pipes not centrifugally cast and fittings . 67
I.2 Works leak tightness test for pipes and fittings for negative pressure pipelines. 68
Annex ZA (informative) Relationship of this European Standard with Regulations (EU)
No.305/2011 . 69
ZA.1 Scope and relevant characteristics . 69
ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) . 70
ZA.3 Assignment of AVCP tasks . 70
Bibliography . 75

European foreword
This document (prEN 598:2017) 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 598:2007+A1:2009.
This standard has been revised to modify Annex ZA and Clause 9.
This document has been prepared under a under a mandate given to CEN by the European Commission
and the European Free Trade Association, and supports basic work requirements of Regulation (EU)
305/2011.
For relationship with EU Regulation, see informative Annex ZA, which is an integral part of this document.
1 Scope
This European Standard specifies the products characteristics and associated test and assessment
methods applicable to coated and lined ductile iron pipes, coated and lined fittings and joints which
include (non-exhaustive list) coated and lined accessories such as collar, tees, saddles, bends, tapers,
flanged socket.
Intended use: Gravity and pressure drains and sewers:
— operating without pressure, or with positive or negative pressure;
— installed below or above ground;
— for conveyance of surface water, wastewater in separate systems or in combined systems.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 196-1, Methods of testing cement — Part 1: Determination of strength
EN 545, Ductile iron pipes, fittings, accessories and their joints for water pipelines — Requirements and test
methods
EN 681-1, Elastomeric seals — Materials requirements for pipe joint seals used in water and drainage
applications — Part 1: Vulcanized rubber
EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification
using data from reaction to fire tests
EN 13823:2010+A1:2014, Reaction to fire tests for building products — Building products excluding
floorings exposed to the thermal attack by a single burning item
EN ISO 1182, Reaction to fire tests for products — Non-combustibility test (ISO 1182)
EN ISO 1716, Reaction to fire tests for products — Determination of the gross heat of combustion (calorific
value) (ISO 1716)
EN ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method (ISO 6506-1)
EN ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature (ISO
6892-1)
EN ISO 11925-2, Reaction to fire tests — Ignitability of products subjected to direct impingement of flame
— Part 2: Single-flame source test (ISO 11925-2)
3 Terms, definitions and abbreviations
For the purposes of this document, the following terms, definitions and abbreviations apply.
3.1 Terms and definitions
3.1.1
nominal size (DN)
alphanumerical designation of size for components of a pipework system, which is used for reference
purposes. It comprises the letters DN followed by a dimensionless whole number which is indirectly
related to the physical size, in millimeters, of the bore or outside diameter of the end connections
[SOURCE: EN ISO 6708:1995]
3.1.2
ovality

AA−
out of roundness of a pipe section; it is equal to: 100

AA+
12
where
A is the maximum axis in millimetres;
A is the minimum axis, in millimetres
3.1.3
standardized length Lu
for socket and spigot pipes the standardized length, Lu is equal to the overall length (OL) minus the depth
of the socket (DOS) as given by the manufacturer

Figure 1 — Length
3.1.4
deviation
design length allowance with respect to the standardized length of a pipe
3.1.5
ductile iron
cast iron used for pipes, fittings and accessories in which graphite is present substantially in spheroïdal
form
3.1.6
pipe
casting of uniform bore, straight in axis, having either socket, spigot or flanged ends, except for flanged-
socket pieces, flanged-spigot pieces and collars which are classified as fittings
3.1.7
fittings
casting other than a pipe which allows pipeline deviation, change of direction or bore. In addition flanged-
socket pieces, flanged-spigot pieces and collars are also classified as fittings
3.1.8
flange
flat circular end of a pipe or fitting extending perpendicular to its axis, with bolt holes equally spaced on
a circle
NOTE A flange is either fixed (e.g. integrally cast or welded-on) or adjustable; an adjustable flange comprises a
ring, in one or several parts assembled together, which bears on an end joint hub and can be freely rotated around
the pipe axis before jointing.
[SOURCE: EN 1092-2:1997]
3.1.9
spigot
male end of a pipe or fitting
3.1.10
spigot end length
spigot over a length equal to maximum insertion depth plus 50 mm
3.1.11
socket
female end of a pipe or fitting to make the connection with the spigot of the next component
3.1.12
gasket
sealing component of a joint
3.1.13
joint
connection between the ends of two pipes and/or fittings in which a gasket is used to effect a seal
3.1.14
flexible joint
joint which permits significant angular deflection both during and after installation and which can accept
a slight offset of the centerline
3.1.15
push in joint
flexible joint assembled by pushing the spigot through the gasket in the socket of the mating component
3.1.16
mechanical joint
flexible joint in which sealing is obtained by applying pressure to the gasket by mechanical means, e.g. a
gland
3.1.17
restraint joint
flexible joint in which a means is provided to prevent separation of the assembled joint
3.1.18
flanged joint
joint between two flanged ends
3.1.19
inspection chambers and manholes
component of a discharge system, of a drain or of a sewer providing access from the ground surface for
inspection and maintenance equipment
3.1.20
nominal pressure
alphanumerical designation used for reference purposes related to a combination of mechanical and
dimensional characteristics of a component of a pipework system. It comprises the letters PN followed
by a dimensionless number
[SOURCE: EN 1333:2006]
NOTE All equipment of the same nominal size DN designated by the same PN number have compatible mating
dimensions.
3.1.21
leak tightness test pressure
pressure applied to a component during manufacture in order to ensure its leak tightness
3.1.22
allowable operating pressure (PFA)
maximum hydrostatic pressure that a component can withstand continuously in service
[SOURCE: EN 476:2011]
3.1.23
allowable maximum operating pressure (PMA)
maximum hydrostatic pressure, including surge, that a component can withstand from time to time in
service
[SOURCE: EN 476:2011]
3.1.24
allowable test pressure (PEA)
maximum hydrostatic pressure that a newly installed component can withstand for a relatively short
duration, when either fixed above ground level or laid and backfilled underground, in order to ensure the
integrity and tightness of the pipeline
[SOURCE: EN 476:2011]
NOTE This test pressure is different from the system test pressure (STP), which is related to the design
pressure of the pipeline and is intended to ensure its integrity and leak tightness.
3.1.25
diametral stiffness of a pipe
characteristic of a pipe which allows it to resist ovalization under loading when installed
3.1.26
discharge system
system of pipes, fittings, accessories and joints used to collect and drain waste water and rainwater of a
building
NOTE It comprises discharge pipes, stack ventilation pipes and rainwater downpipes, installed within the
limits of a building or attached to the building.
3.1.27
drain
system of pipes, fittings, accessories and joints installed outside the limits of a building in order to connect
the discharge system of this building to a sewer or a septic tank
3.1.28
sewer
pipeline designed to collect waste water and rainwater from buildings and surface water and to convey
them to the point of disposal or treatment
3.1.29
gravity sewer
sewer operating under free flowing conditions
3.1.30
pressure sewer
sewer (or section of a sewer) operating under positive pressure
3.1.31
vacuum system
sewer (or section of a sewer) operating under negative pressure
3.1.32
combined system
sewerage system collecting together rainwater, surface water and waste water
3.1.33
separate system
sewerage system which collects waste water separately from rainwater and surface water
3.1.34
length
effective length of a pipe is Lu as shown on Figure 1 and flanged pipes standardized length are 1, 2, 3, 4,
5, 6 meters
3.1.35
fittings for gravity sewers
are collars, manhole connectors, angle branches, connexion branches, inspection tees, etc.
3.1.36
accessories
casting except pipes and fittings used for pipelines, manhole, screws etc.
3.2 Abbreviations
PFA Allowable operating pressure
PMA Allowable maximum operating pressure
PEA Allowable test pressure
4 Product characteristics
4.1 Coated and lined ductile iron pipes
4.1.1 Reaction to fire
The reaction to fire expresses the contribution given by the coated and lined pipes in the event of fire.
When tested according to 5.1.1; the claimed class results shall be expressed according to EN 13501-1.
4.1.2 Longitudinal bending strength
Longitudinal bending strength expresses the capability of the pipe to withstand unexpected bending
moments affecting the integrity and functionality of the pipe. When tested according to 5.1.2 result shall
be expressed as kNm.
4.1.3 Internal pressure strength
The internal pressure strength expresses the capability of the product to withstand the internal load
generated.
The internal pressure strength is calculated according to 5.1.3 and the results are expressed in bar,
indicating the safety factor used in the calculation.
4.1.4 Maximum load for admissible deformation
4.1.4.1 General
The maximum load for admissible deformation is addressed as ring stiffness performed with the test
described in 5.1.4. The maximum load is the result of either traffic soil or other external conditions or a
combination of soil and external conditions, it is expressed in kN/m .
4.1.4.2 Diametral stiffness
The diametral stiffness is the characteristics which allows it to resist ovalization under loading. It is
expressed in kN/m with an additional visual inspection and it is calculated as in 5.1.4.1.
4.1.4.3 Ovalisation
The ovalisation is the one that the pipe can stand when tested according to 5.1.4.2, result shall be
expressed in mm.
The ovalisation is 100 times the measured vertical deflection in millimetres (caused by the applied load)
divided by the measured pipe external diameter in millimetres.
4.1.5 Dimension
4.1.5.1 Nominal size DN
Nominal sizes is defined in 3.1.1.
4.1.5.2 Diameter
4.1.5.2.1 External diameter including tolerances
Table 1 specifies the values of the external diameter DE of the coated spigot end length of pipes and their
maximum allowable tolerances, when measured using a gauge in accordance with 5.1.5.2.1.
Table 1 — External diameter of a pipe
External diameter, DE
Mm
DN
Limit
Nominal
deviation
80 98 + 1/ − 2,7
100 118 + 1/ − 2,8
125 144 + 1/ − 2,8
150 170 + 1/ − 2,9
200 222 + 1/ − 3,0
250 274 + 1/ − 3,1
300 326 + 1/ − 3,3
350 378 + 1/ − 3,4
400 429 + 1/ − 3,5
450 480 + 1/ − 3,6
500 532 + 1/ − 3,8
600 635 + 1/ − 4,0
700 738 + 1/ − 4,3
800 842 + 1/ − 4,5
900 945 + 1/ − 4,8
1 000 1 048 + 1/ − 5,0
1 100 1 152 + 1/ − 6,0
1 200 1 255 + 1/ − 6,0
1 400 1 462 + 1/ − 6,6
1 500 1565 + 1/ − 7,0
1 600 1668 + 1/ − 7,4
1 800 1 875 + 1/ − 8,2
2 000 2 082 + 1/ − 9,0
4.1.5.2.2 Wall thickness
The below table gives the results of wall thickness when measured according to the method in 5.2.3.1.
Table 2 — Wall thickness
DN wall thickness, e
mm
Pressure pipes Gravity pipes
Limit Limit
Nominal Nominal
a a
deviation deviation
80 4,8 − 1,3 3,4 − 1,0
100 4,8 − 1,3 3,4 − 1,0
125 4,8 − 1,3 3,4 − 1,0
150 4,8 − 1,3 3,4 − 1,0
200 4,9 − 1,3 3,4 − 1,0
250 5,3 − 1,6 4,1 − 1,0
300 5,6 − 1,6 4,8 − 1,0
350 6,0 − 1,7 5,5 − 1,2
400 6,3 − 1,7
450 6,7 − 1,8
500 7,0 − 1,8
600 7,7 − 1,9
700 9,6 − 2,0
800 10,4 − 2,1
900 11,2 − 2,2
1 000 12,0 − 2,3
1 100 14,4 − 2,4
1 200 15,3 − 2,5
1 400 17,1 − 2,7
1 500 17,9 − 2,8
1 600 18,9 − 2,9
1 800 20,7 − 3,1
2 000 22,5 − 3,3
a
The minimum thickness can only appear locally at a few distant points, not along the length or the
circumference of the pipe.
4.1.5.2.3 Internal diameter including tolerances
The nominal values of the internal diameters including tolerances as describe in Table 3 are expressed in
millimeters, when verified according to 5.1.5.2.2.
NOTE Due to the manufacturing process of the ductile iron pipes and their linings (refer to Annex A), internal
diameters with the lower limit deviation will only appear locally along the pipe length.
Table 3 — Limit deviation on internal diameter
a
DN Limit deviation
80 to 1000 − 10 mm
b
1100 to 2000 − 0,01 x DN
a
The lower limit only is given.
b
For example for DN 2000 the limit deviation is - 20mm.
4.1.5.3 Length including tolerances
The length of pipes shall be measured according to 5.1.5.3 and the value, expressed in meters -30 mm /
+ 70 mm.
The percentage of shorter pipes shall not exceed 10 %.
4.1.5.4 Straightness of pipes
Pipes shall be straight, with a maximum deviation of 0,125 % of their length.
The verification of this characteristics shall be in accordance with 5.1.5.3.2. The result of this measure
shall be expressed as a percentage.
4.1.6 Tightness of pipes: gas and liquid
4.1.6.1 Water leakage (for gravity and for pressure pipes) positive internal pressure
The positive internal pressure is addressed by the internal pressure strength.
Sewer pipes in conformity with this standard shall be leak tight at the pressures given in Table 4. The
water leakage of pipes is tested according to the test describe in Table 11 in 5.1.6.1.
Table 4 — Pressure
Internal pressure
bar
Type of operation
Continuous Occasional
Gravity pipes 0 to 0,5 2
Pressure pipes See PFA in Annex A see PMA in Annex A
4.1.6.2 Water leakage (only for gravity pipes) positive external pressure
Sewer pipes shall be leak tight at the pressures given in Table 5. The water leakage of pipes is tested
according to the test described in Table 11 in 5.1.6.1.
Table 5 — Pressure
External pressure
Type of operation bar
Continuous
Gravity pipes 1
4.1.6.3 Air leakage (only for negative internal pressure for vacuum system)
Sewer pipes shall be leak tight at the negative pressures given in Table 6. When tested in accordance to
5.1.6.2, the manometer shall not show values exceeding 0,09 bar.
Table 6 — Negative Pressure
Internal pressure External pressure
Type of operation bar bar
Continuous Occasional Continuous
Negative pressure 0,5 0,8 1
4.1.7 Release of dangerous substances
An informative database covering European and national provisions on dangerous substances is available
at the Construction web site on EUROPA accessed through: http://ec.europa.eu/growth/tools-
databases/cp-ds_en
4.1.8 Impact resistance
4.1.8.1 General
Impact resistance should take into account the mechanical properties of ductile iron pipe as well as the
selected mechanical properties of the coating and lining systems mentioned in Annexes A and B.
4.1.8.2 Hardness
The hardness shall be such as the pipe can be cut, drilled, tapped and/or machined with tools. The
reference test for hardness shall be the Brinell hardness test in accordance with 5.1.8.1.
The Brinell hardness shall not exceed 230 HBW.
4.1.8.3 Tensile strength
Pipes, shall have the tensile properties given in Table 7 when tested according to 5.1.8.2.
Table 7 — Tensile properties
Minimum tensile Minimum elongation after fracture, A
strength, R
m
MPa %
DN 80 to DN 2000 DN 80 to DN 1000 DN 1100 to DN 2000
Pipes centrifugally cast 420 10 7
Pipes not centrifugally cast 420 5 5
By agreement between manufacturer and purchaser, the 0,2 % proof stress (R ) may be measured. It shall be
p0,2
not less than:
— 270 MPa when A ≥ 12 % for DN 80 to DN 1000 or A ≥10 % for DN > 1000;
— 300 MPa in other cases.
— For centrifugally cast pipes of DN 40 to DN 1 000 and having a design minimum wall thickness of 10 mm or
greater, the minimum elongation after fracture shall be 7 %.
4.2 Coated and lined fittings and joints
4.2.1 Reaction to fire
The reaction to fire expresses the contribution given by the coated fitting and joints in the event of fire.
When tested according to the test methods in 5.2.1 relevant for the claimed class results shall be
expressed according to EN 13501-1.
4.2.2 Internal pressure strength
4.2.2.1 General
The internal pressure strength expresses the capability of the fittings and joints to withstand the internal
load generated. These characteristics is assessed through the following verification.
4.2.2.2 Pressure fittings
The pressure capability of fittings are tested according to 5.2.2. The result is expressed in bar. Gaskets
are covered by EN 681-1.
4.2.2.3 Pressure joints
The pressure capability of Joints are tested according to 5.2.2. The result is expressed in bar.
4.2.3 Dimensions
4.2.3.1 Wall thickness including tolerances
The wall thickness of fittings is measured according to 5.2.3.1 and the result is expressed in mm.
4.2.4 Tightness: gas and liquid
4.2.4.1 General
The assessment can be done by using the two following method however the reference method is water
leakage method.
4.2.4.2 Water leakage (for gravity and for pressure pipes) positive internal pressure
When tested according to 5.2.4.1, no visible leakage shall be visually detected.
4.2.4.3 Water leakage (only for gravity pipes) positive external pressure
When tested according to 5.2.4.1, no visible leakage shall be visually detected.
4.2.4.4 Air leakage for negative pressure (only for vacuum system)
When tested according to 5.2.4.3, no bubbles shall be visually detected.
4.2.5 Release of dangerous substances
National regulations on dangerous substances may require verification and declaration on release, and
content, when construction products covered by this standard are placed in those markets. In the absence
of European harmonised test methods, verification and declaration on release and content should take
into account national provisions in the place of use.
NOTE An informative database covering European and national provisions on dange
...