SIST EN 580:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.'&07Kunststoff-Rohrleitungssysteme - Rohre aus weichmacherfreiem Polyvinylchlorid (PVC-U) - Prüfverfahren für die Beständigkeit gegen Dichlormethan bei einer festgelegten Temperatur (DCMT)Systemes de canalisations en plastiques - Tubes en poly(chlorure de vinyl) non-plastifié - Méthode d'essai de la résistance au dichlorométhane a une température spécifiée (DCMT)Plastics piping systems - Unplasticized poly(vinyl chloride) (PVC-U) pipes - Test method for the resistance to dichloromethane at a specified temperature (DCMT)23.040.20Cevi iz polimernih materialovPlastics pipesICS:Ta slovenski standard je istoveten z:EN 580:2003SIST EN 580:2003en01-oktober-2003SIST EN 580:2003SLOVENSKI
STANDARDSIST EN 580:19971DGRPHãþD



SIST EN 580:2003



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 580April 2003ICS 23.040.20Supersedes EN 580:1993English versionPlastics piping systems - Unplasticized poly(vinyl chloride)(PVC-U) pipes - Test method for the resistance todichloromethane at a specified temperature (DCMT)Systèmes de canalisations en plastiques - Tubes enpoly(chlorure de vinyl) non-plastifié - Méthode d'essai de larésistance au dichlorométhane à une température spécifiée(DCMT)Kunststoff-Rohrleitungssysteme - Rohre ausweichmacherfreiem Polyvinylchlorid (PVC-U) -Prüfverfahren für die Beständigkeit gegen Dichlormethanbei einer festgelegten Temperatur (DCMT)This European Standard was approved by CEN on 14 February 2003.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,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 580:2003 ESIST EN 580:2003



EN 580:2003 (E)2ContentspageForeword.3Introduction.41Scope.52Principle.53Reagent.54Apparatus.55Preparation of the test piece.66Immersion conditions.67Procedure.78Expression of results.79Test report.7Annex A (informative)
Description of attack.8Annex B (informative)
Example of small vessel build into existing vessel.9SIST EN 580:2003



EN 580:2003 (E)3ForewordThis document (EN 580:2003) has been prepared by Technical Committee CEN/TC 155 "Plastics piping systemsand ducting systems", the secretariat of which is held by NEN.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by October 2003, and conflicting national standards shall be withdrawn at the latestby October 2003.This document supersedes EN 580:1993.The modifications in principle are:— the surface of the dichloromethane is minimised and protected by an increased thick layer of water on top of it(see 6.2);— after immersion in the dichloromethane, the test piece is left for “dripping off” in the water layer before finaldrying and inspection (see 7.4).The modifications permit to reduce annual consumption of dichloromethane and thus improve the environment forthe staff conducting the test without reducing the number of tests. Practice has shown that this modified procedureand test arrangement can result in a reduction of dichloromethane consumption by more than 90 %.This standard includes the following:— Annex A, which is informative, gives a basis for describing the amount of attack:— Annex B, which is informative, shows modifications in test equipment and procedure in order to make itpossible to reduce the consumption of dichloromethane.The material-dependent test parameters and/or performance requirements are incorporated in the referringstandard(s).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, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.SIST EN 580:2003



EN 580:2003 (E)4IntroductionThe maximum temperature at which the unplasticized poly(vinyl chloride) (PVC-U) pipe is not attacked bydichloromethane gives an indication of the level and homogeneity of gelation of the pipe. This characteristic isrelated to the mechanical properties and, in particular, the long-term performance of the pipe.SIST EN 580:2003



EN 580:2003 (E)51 ScopeThis standard specifies a method for determining the resistance of unplasticized poly(vinyl chloride) (PVC-U) pipesto dichloromethane at a specified temperature (DCMT).This standard is applicable to PVC-U pipes, irrespective of their use.The method can be used as a rapid means of quality control during manufacture.NOTEThe temperature of the dichloromethane at which PVC-U shall not be attacked, is specified in the referring standard.2 PrincipleA piece of PVC-U pipe, of specified length, chamfered at one end to an angle dependent on its thickness, isimmersed for (30
± 1) min in dichloromethane at a specified temperature to verify that the PVC-U is not attacked atthat temperature. The surface area of the dichloromethane is minimized and covered by a thic
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