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drainage and sewerage — Polyethylene (PE) — Part 1: General

The European Standard EN 13244-1:2002 has the status of a British Standard

ICS 93.030

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This British Standard, was

published under the authority

of the Standards Policy and

— BS 6437:1984, Specification for polyethylene pipes (type 50) in metric

diameters for general purposes;

which will be declared obsolescent by December 2004

NOTE 1 The UK water industry has indicated that following the publication of this British Standard, the following Water Industry Specification will be declared obsolescent by March 2005 and retained for reference where applicable:

— WIS 4-32-17 (Issue 2), Specification for polyethylene pressure pipes for pressurised water

supply and sewerage duties1)

The UK participation in its preparation was entrusted by Technical Committee PRI/88 (previously PRI/61), Plastics piping systems, to Subcommittee PRI/88/2 (previously PRI/61/2), Plastics piping systems for pressure applications, which has the responsibility to:

A list of organizations represented on this subcommittee can be obtained on request to its secretary

NOTE 2 It was decided not to proceed with the publication of prEN 13244-6, Recommended

practice for installation and that existing national practices would be applicable In the UK, in the

absence of a British Standard covering installation, it is the opinion of Technical Committee

PRI/88, Plastics piping systems, that reference to the Polyethylene Pipe Systems Manual2) , a joint publication of WRc and BPF Plastic Pipes Group represents established UK practice.

NOTE 3 Part 7 has been prepared as a CEN/TS, to allow further development CEN/TS 13244-7

is not mandatory under the Public Procurement Directive.

Attention is drawn to the following statutory regulations:

Health and Safety at Work etc Act 1974 and subsequent regulations.Attention is also drawn to any appropriate safety precautions It is assumed in the drafting of a standard that the execution of its provisions is entrusted to appropriately qualified people

1) Published by WRc, Swindon.

— aid enquirers to understand the text;

— present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the

Amendments issued since publication

The British Standards which implement international or European publications

referred to in this document may be found in the BSI Catalogue under the section

entitled “International Standards Correspondence Index”, or by using the

“Search” facility of the BSI Electronic Catalogue or of British Standards Online.

This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application

Compliance with a British Standard does not of itself confer immunity from legal obligations.

Summary of pages

This document comprises a front cover, an inside front cover, pages i and ii, the

EN title page, pages 2 to 17 and a back cover

The BSI copyright notice displayed in this document indicates when the document was last issued

- Polyethylene (PE) - Part 1: General

Systèmes de canalisations en plastique pour les applications générales de transport d'eau, de branchement

et de collecteurs d'assainissement, enterrés sous pression

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Kunstoff-Rohrleitungssysteme für erd- und oberirdisch verlegte Druckrohrleitungen für Brauchwasser, Entwässerung und Abwasser - Polyethylen (PE) - Teil 1:

Allgemeines

This European Standard was approved by CEN on 14 November 2002.

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 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 Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION

C O M I T É E U R O P É E N D E N O R M A L I S A T I O N

E U R O P Ä I S C H E S K O M I T E E F Ü R N O R M U N G

Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2002 CEN All rights of exploitation in any form and by any means reserved

worldwide for CEN national Members.

Ref No EN 13244-1:2002 E

page

Foreword 3

Introduction 5

1 Scope 6

2 Normative references 6

3 Definitions, symbols and abbreviations 7

3.1 Terms and definitions 7

3.1.1 Geometrical definitions 8

3.1.2 Definitions related to service conditions 9

3.1.3 Definitions related to material characteristics 9

3.2 Symbols 10

3.3 Abbreviations 11

4 Material 11

4.1 Compound 11

4.2 Colour 11

4.2.1 General 11

4.2.2 Black compound 11

4.3 Use of reprocessable and recyclable material 11

4.4 Physical characteristics of the compound 11

4.5 Fusion compatibility 13

4.6 Classification and designation 14

Annex A (informative) Pressure reduction coefficients 15

Bibliography 16

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 June 2003, and conflicting national standards shall be withdrawn at the latest byDecember 2004

For components which have conformed to the relevant national standard before December 2002, as shown by themanufacturer or by a certification body, the national standard may continue to be applied until the December 2004

This European Standard is a Part of a System Standard for plastics piping systems of a particular material for aspecified application There are a number of such System Standards

and valves for the transport of fluids", which is a Technical Committee of the International Organization forStandardization (ISO)

They are supported by separate standards on test methods to which references are made throughout the SystemStandard

The System Standards are consistent with standards on general functional requirements and standards onrecommended practice for installation

above-ground pressure systems for water for general purposes, drainage and sewerage — Polyethylene (PE):

— Part 1: General (this standard)

— Part 2: Pipes

— Part 3: Fittings

— Part 4: Valves

— Part 5: Fitness for purpose of the system

— Part 7: Guidance for the assessment of conformity (to be published as a CEN/TS)

NOTE It was decided not to publish a Part 6: Recommended practice for installation Instead, existing national practiceswould be applicable

This Part of EN 13244 includes the following:

— Bibliography

System Standards for piping systems of other plastics materials used for the conveyance of water, drainage andsewerage under pressure include the following:

thermosetting (GRP) plastics based on polyester resin (UP)

Unplasticized poly(vinylchloride) (PVC-U)

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.

Requirements and test methods for components of the piping system are specified in EN 13244-2, EN 13244-3 and

EN 13244-4 Characteristics for fitness for purpose are covered in EN 13244-5 prCEN/TS 13244-7 gives guidancefor the assessment of conformity

This Part of EN 13244 covers the general aspects of the plastics piping system

1 Scope

This Part of EN 13244 specifies the general aspects of polyethylene (PE) piping systems intended for buried andabove-ground pressure systems for water for general purposes, drainage and sewerage It is also applicable forvacuum sewer systems

NOTE 1 Water for general purposes is not intended for human consumption and components conforming to this standardshould not be used in systems conveying water for human consumption For PE components intended for the conveyance ofwater intended for human consumption and raw water prior to treatment, see EN 12201

It also specifies the test parameters for the test methods referred to in this standard

In conjunction with other Parts of EN 13244 (see Foreword), it is applicable to PE pipes, fittings, valves, their jointsand to joints with components of other materials intended to be used under the following conditions:

— buried in the ground;

— laid in water;

— above-ground, including pipes suspended below bridges;

— a maximum operating pressure, MOP, up to and including 25 bar1);

— an operating temperature of 20 °C as a reference temperature

NOTE 2 For applications operating at constant temperatures greater than 20 °C and up to 40 °C, see annex A

EN 13244 covers a range of maximum operating pressures and gives requirements concerning colours andadditives

NOTE 3 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking intoaccount their particular requirements and any relevant national guidance or regulations and installation practices or codes

2 Normative references

This European Standard incorporates by dated or undated reference, provisions from other publications Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision For undated references the latest edition of thepublication referred to applies (including amendments)

Determination of the long-term hydrostatic strength of thermoplastics materials for injection moulding of pipingcomponents

EN 13244-1:2002 (E)

7

purposes, drainage and sewerage — Polyethylene (PE) – Part 2: Pipes

(MVR) of thermoplastics (ISO 1133:1997)

designation — Overall service (design) coefficient (ISO 12162:1995)

crack propagation (RCP) — Full-scale test (FST) (ISO 13478:1997)

propagation — Test method for slow crack growth on notched pipes (notch test) (ISO 13479:1997)

characteristics

— Test method and basic specification

stress rupture data to determine the long-term hydrostatic strength of thermoplastics pipe materials

assemblies by butt fusion

propagation (RCP) — Small-scale steady-state test (S4 test)

test pieces from a butt-fused joint

pipes, fittings and compounds

3 Definitions, symbols and abbreviations

3.1 Terms and definitions

For the purposes of this European Standard, the terms and definitions in ISO 3:1973, ISO 472:1988 andISO 1043-1:1997 together with the following apply

NOTE The symbols de, e, emin and emax in EN 13244 are equivalent to dey, ey, ey,min and ey,max respectively inISO 11922-1[1]

nominal size DN/OD

nominal size, related to the outside diameter

3.1.1.3

nominal outside diameter ( d n)

specified outside diameter, in millimetres, assigned to a nominal size DN/OD

3.1.1.4

outside diameter at any point ( d e)

value of the measurement of the outside diameter through its cross-section at any point of the pipe or spigot end of

a fitting, rounded to the next greater 0,1 mm

3.1.1.5

mean outside diameter ( d em)

value of the measurement of the outer circumference of the pipe or spigot end of a fitting in any cross-section

3.1.1.6

minimum mean outside diameter ( d em,min)

minimum value of the mean outside diameter as specified for a given nominal size

3.1.1.7

maximum mean outside diameter ( d em,max)

maximum value of the mean outside diameter as specified for a given nominal size

nominal wall thickness ( e n)

numerical designation of the wall thickness of a component, which is a convenient round number, approximatelyequal to the manufacturing dimension in millimetres

3.1.1.10

wall thickness at any point ( e )

value of the measurement of the wall thickness at any point around the circumference of a component

3.1.1.11

minimum wall thickness at any point ( e min)

minimum value of the wall thickness at any point around the circumference of a component as specified

3.1.1.12

maximum wall thickness at any point ( e max)

maximum value of the wall thickness at any point around the circumference of a component as specified

EN 13244-1:2002 (E)

9

3.1.1.13

mean wall thickness ( e m)

arithmetic mean of a number of measurements regularly spaced around the circumference of the component in thesame cross-section of the component, including the measured minimum and the measured maximum values of thewall thickness

3.1.1.14

pipe series S

NOTE The relationship between the pipe series S and the standard dimension ratio SDR is given by the following equation

as specified in ISO 4065[2]

[ ] [ ]

2

1SDR

=

3.1.1.15

standard dimension ratio (SDR)

ratio of the nominal outside diameter, dn,of a pipe to its nominal wall thickness, e

3.1.2.2

maximum operating pressure (MOP)

maximum effective pressure of the fluid in the piping system, expressed in bar, which is allowed in continuous use

It takes into account the physical and the mechanical characteristics of the components of a piping system

NOTE It is calculated using the following equation:

[ ] ( [ ] )

1SDRC

allowable operating pressure (PFA)

maximum hydrostatic pressure that a component is capable of withstanding continuously in service

3.1.3 Definitions related to material characteristics

3.1.3.1

lower confidence limit at 20 °C for 50 years (σσLCL)

quantity, with the dimensions of stress in megapascals, which can be considered as a property of the material, andrepresents the 97,5 % lower confidence limit of the mean long-term strength at 20 °C for 50 years with internalwater pressure

minimum required strength (MRS)

value of σLCL

NOTE R10 and R20 series are the Renard number series according to ISO 3:1973 and ISO 497[3]

3.1.3.3

design stress (σσs)

next lower value in R20 series

σs

MRS

=C

3.1.3.4

overall service (design) coefficient ( C )

overall coefficient with a value greater than 1, which takes into consideration service conditions as well asproperties of the components of a piping system other than those represented in the lower confidence limit

3.1.3.5

melt mass-flow rate (MFR)

value relating to the viscosity of the molten material at a specified temperature and load

3.2 Symbols

For the purposes of this European Standard, the following symbols apply

EN 13244-1:2002 (E)

11

3.3 Abbreviations

For the purposes of this European Standard, the following abbreviations apply

4 Material

4.1 Compound

The compound from which the products are produced shall be made by adding to the polyethylene base polymeronly those additives necessary for the manufacture and end use of the products conforming to the requirements ofthe applicable Part(s) of EN 13244

All additives shall be uniformly dispersed

4.2 Colour

4.2.1 General

Unless other colours are required to conform to national regulations, the colour of the compound shall be black

NOTE 1 Where national regulations require an alternative colour to black, pipes coloured blue or black with blue stripesshould not be used for this application The blue colour indicates that the components are suitable for the conveyance of waterintended for human consumption as specified in EN 12201

NOTE 2 For non-black compounds additional tests after weathering on pipe samples are required, see Table 2

4.2.2 Black compound

The carbon black used in the production of black compound shall have an average (primary) particle size of 10 nm

to 25 nm

Use of reprocessable and recyclable material

4.3 Use of reprocessable and recyclable material

Clean reprocessable material generated from a manufacturer's own production and works testing of products to

compound as used for the relevant production Reprocessable material obtained from external sources andrecyclable material shall not be used

4.4 Physical characteristics of the compound

The compound, used for the manufacture of pipes, fittings and valves shall conform to the requirements given inTable 1 as granules and Table 2 in the form of pipe