Plastics piping systems for soil and waste discharge (low and high temperature) within thebuildingstructure -Polypropylene (PP)-
Part1:Specificationsforpipes fittingsandthesystem
Nationalforeword
This British Standard is the official English language version of EN 1451-1:1998 Itsupersedes BS 5254:1976 and because the size range in EN 1451-1 also covers sizes used for waste pipes and fittings it is one of a group of EN standards which eachpartially supersedes BS 5255:1989. Both BS 5254:1976 andBS 5255:1989 will be declared obsolescent with effect from 30 June 2001.
NOTE When first available the ratified text of EN 1451-1:1998 gave a date of withdrawal for conflicting national standards of “June 199gr' but this was subsequently changed by resolutionto European Standards for plastics piping systems for this application and any consequentrevision declaration of obsolescence or withdrawal of the corresponding British Standards which are being superseded.
Products conforming to BS EN 1451-1 will be patible with those of the same size in accordance with BS 5254:1976. The nominal sizes DN/OD 34 41 and 54 correspondexactly with the 11 11 and 2 sizes respectively in BS 5254:1976.
Since EN 1451-1:1998 does not cover all the piping ponents covered by or used inconjunction with produets conforming to BS 5254 and/or BS 5255 see BS 4514:1983 andits planned revision for the UK requirements for the minimum opening dimensions of access fittings design of swept fittings for connectors to WC pans and stand-offdimensions of pipe and fitting clips.
The UK participation in its preparation was entrusted by Technical Committe PRI/61 piping systems and ponents for non-pressure applications which has the Plastics piping systems and ponents to Suboommittee PRI/61/1 Thermoplasticsresponsibility to:
uo sanbaAue aau dongaqodat o usaid aid enquirers to understand the text;interpretation or proposals for change and keep the UK interests informed; monitor related international and European developments and promulgatethem in the UK.
A list of organizations represented on this submittee can be obtained on request to its secretary.
The responsible UK mittee gives the following advice concerming the selection ofalternative test conditions provided in this standard.
a) Table 13 as referred to in 8.1 appears to present two alternative test conditions i.e. method A or method B of EN 743:1994 without identifying where they apply or which is the reference method in case of dispute. Since these alternative testconditions might lead to conflicting results users of this standard should declare or agree on a contractual basis which condition is to be the reference condition in case ofdispute.
b) In Tahle 17 reference is made to a specific point of detail in the current edition ofEN 921 i.e. °types a or b° end caps and therefore:
1) the reference should be construed as relating to the current (1995) edition as though the reference in Table 17 and hence also in clause 2 were dated accordingly;
This British Standard having been prepared under thedirection of the Sector Committee for Materials andChemicals was published under the authority of theStandards Committee on 15 February 2000
2) sinee altermative test conditions are permitted which might lead to confietingresults depending on the choice of end caps users of this standard should declare or agree on a contractual basis which condition is to be the reference condition incase of dispute.
The responsible UK mittee gives the following advice concerning the specification ofpiping ponents used with piping systems conforming to this British Standard but not detailed in EN 1451-1:1998.
Amendments issued since publication
Amd. No. Date Comments13819 21 November 2002 Revision of national forewordCorrigendum No. 1
C BSI 21 November 2002
ISBN 0 580 359387
c) See BS 4514:2001 for the UK requirements for the minimum opening dimensions of access fittings design of swept fittings connectors to WC pans stand-off dimensions ofpipe and fitting brackets and requirements for adaptors and plugs. Referenee should also be made to the following design requirements of BS 4514:2001 5.3.1 5.3.3 5.3.5 5.3.7 5.3.8 5.3.9 and Figures 6 8 and 9.
Analogous provisions apply in Scotland and Northern Ireland.
d) For external installation which is monplace and remains allowed in the UK EN 1451-1:1998 only requires that additional requirements depending on the climate be agreed between the manufacturer and the user (in clause 14: otherwise in line withEuropean practice EN 1451-1:1998 only gives specific requirements for products for discharge systems intended to be installed within buildings.) If the produet is to beinstalled externally it may require protection by painting or some other means.
The responsible UK mittee gives the following advice concerning the selection and
installation of piping systems and ponents conforming to this British Standard.
above ground and installed in accordance with BS 5572 using the N socket variants as e) The produets should only he used in applicatin area B ie. suspended from bracketsspecified. EN 1451-1:1998 provides a choice of three series of pipe wall thickness. When installing piping in aocordance with BS 5572 (or equivalent) in above-groundsituations it is strongly remended that series S 16 is specified and used.
For external installation see item d) of this foreword. The advice of the manufacturerof products conforming to BS BN 1451-1 should be sought acordingly.
f) In respect of fire regulations (see 4.4) The Building Regulations 1991 Approved Document B3 Setion 10 requires that where PP pipe with an internal diametergreater than 40mm (1i') penetrates a fire wall flor or enclosure the point of penetration is protected by a proprietary fire seal. This seal must be certificated bysodid dd m a s a eq moqs o us d-p
Analogous provisions apply in Scotland and Northern Ireland respectively.
g) For underground installations see BS EN 1852-1 or equivalent productspecifications for such situations and take account of current national installation practices e.g. BS BN 1610 and BS EN 752.
Editorial note: Reference to regulations
In 44 tbe only reqirement is thtpipes and fitingshallcoform t ay relevant reqirements on fire regulations Since the authority for such requirementslie with natjonalregulators and otwith standards organizations which donot have the power to waive regulations even should they so wish this type of informatjon n standards should be presented as a note or as a statement in aforeword or introdtaction As information it can refer in general or specific terms to the existence of current regulations/egilatjo/directivesaplicableto the productsortheconditionsoftheirusehe expresion here as part ofthe nrmative text is inapropriate and should ot be nsidered nacceptable precedent for other standards to follow.
Warning This British Standard which is identical with EN 1451-1:1998 does not osupprecautions and the test methods referred to in EN 14511 should be operated only by and Safety at Work ete. Aet 1974. Attention should be paid to any appropriate safetytrained personnel.
Cross-references
The British Standards which implement intermational or European publications referredto in this document may be found in the BSI Catalogue under the section entitled BSI Electronic Catalogue or of British Standards Online. International Standards Correspondene Index or by using the Search° facility of the
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 fromlegal obligations.
Summary of pages
This document rises a front cover an insie front cover pages iand i the EN tite page pages 2 to 32 an inside back cover and a back cover.
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Licensed copy:Laing O Rourke Group P1c Ⅱblank
EN 1451-1
English version
hightemperature)withinthebuildingstructure-Polypropylene Plasticspiping systemsforsoilandwaste discharge(lowand (PP)-Part 1:Specifications forpipes fittings and the system
Systemes de canalisations en plastique pour Tevacuation des eaux-vannes et des eaux usees (a basse et a hautePolypropylene (PP) - Partie 1: Specifications pour tubes temperature) a linterieur de la structure des batiments -raccords ainsi que pour le systeme
Abwasser (niedriger und hoher Temperatur) innerhalb der Kunststoff-Rohrleitungssysteme zum Ableiten vonAnforderungen an Rohre Formsticke und das Rohrleitungssystem
This European Standard was approved by CEN on 1 June 1998.
eeu upns uueouoo seouee eudeoq pue ssl eepo-dn uoeseje uenom pepues eoeu e po snels eun pepuens standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three oficial versions English French German) A verin in any therlanguage made by translation under the responsibity of a CEN memiber into its own language and notified to the Central Secretariat has the same status as the officalversions.
CEN members are the national standards bodies of AustriaBelgium Czech Republic Denmark Finland France Gemany Grece wopury pagun pue pueuazms uapams ueds eenpod Keuon 'spuepouan anoquaxn feai puejal puejaol
Central Secretariat: rue de Stassart 36B-1050 Brussels
