EN 1437:2002

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kunststoff-Rohrleitungssysteme - Erdverlegte Abwasserkanäle und -leitungen - Prüfverfahren zur Bestimmung der Widerstandsfähigkeit gegen Temperaturwechsel und gleichzeitige äußere BelastungSystemes de canalisations en plastique - Systemes de canalisations pour assainissement enterré - Méthode d'essai pour la résistance a un cycle de températures et de charge externe combinésPlastics piping systems - Piping systems for underground drainage and sewerage - Test method for resistance to combined temperature cycling and external loading93.030Zunanji sistemi za odpadno vodoExternal sewage systems23.040.20Cevi iz polimernih materialovPlastics pipesICS:Ta slovenski standard je istoveten z:EN 1437:2002SIST EN 1437:2003en01-oktober-2003SIST EN 1437:2003SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1437August 2002ICS 93.030English versionPlastics piping systems - Piping systems for undergrounddrainage and sewerage - Test method for resistance tocombined temperature cycling and external loadingSystèmes de canalisations en plastique - Systèmes decanalisations pour assainissement enterré - Méthoded'essai pour la résistance à un cycle de températures et decharge externe combinésKunststoff-Rohrleitungssysteme - ErdverlegteAbwasserkanäle und -leitungen - Prüfverfahren zurBestimmung der Widerstandsfähigkeit gegenTemperaturwechsel und gleichzeitige äußere BelastungThis European Standard was approved by CEN on 12 March 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1437:2002 ESIST EN 1437:2003

Recommended requirements.13Bibliography.14SIST EN 1437:2003

box loading procedure;— changes in box design.The material-dependent parameters and/or performance requirements are incorporated in the System Standard(s)concerned.Annex A, which is informative, gives recommended requirements.This standard includes a Bibliography.This standard is one of a series of standards on test methods that support System Standards for plastics pipingsystems and ducting systems.SIST EN 1437:2003

Dependingon the nominal size of the largest pipe or joint under test, a constant vertical load is applied via the gravel andeither a specified number of cycles of hot and cold water or just hot water is passed through the test piece. Thedeformation of the test piece as indicated by vertical deflection or internal diametric compression is measured.For sizes having a mean outside diameter dem £ 190 mm, hot and cold water is passed through the test piece andair may be blown through the test piece during the intervals between stages (Method A).For pipes with a mean outside diameter 190 < dem £ 510 mm a constant flow of hot water is passed through thetest piece (Method B).Vertical deflection of the test piece is measured. The test piece is checked at the end of the test for cracking, forlocal deflection in the bottom of the main channel and for leakage at the joints.NOTE It is assumed that the following parameters are set by the standard making reference to this standard:a)
if appropriate, the limits of the temperature of the water flowing out (see 7.2.2);b)
if appropriate, the duration of the flow (see 7.2.2);c)
the percentage, x, of di for the calculation of the diameter of the hard ball, in accordance with 7.3.3.SIST EN 1437:2003

The 450 mm dimension shall bepositioned parallel to the long wall of the box as shown in Figures 1, 2 and 4. The force shall be applied such thatthe initial applicable load is applied during between 1 min and 2 min and maintained to within ± 1 kN.Fixed points shall be established above each of the four corners of the loading plate to act as datum points tomeasure the sinking of the plate into the gravel after application of the final load (see 7.1.7).QFlowBLoading plate 300 mm ´ 450 mmFigure 4 ¾ Example of positioning of a test piece under the loading plate4.3 Hot and cold water and air delivery systems, capable of providing the following:a)
hot water at the specified flow and temperatur
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