EN ISO 15875-5-2003 en Plastics piping systems for hot and cold water installations - Crosslinked polyethylene (PE-X) - Part 5 Fitness for purpose of the system《冷热水装置用塑料管道系统 交联聚乙烯(.pdf
《EN ISO 15875-5-2003 en Plastics piping systems for hot and cold water installations - Crosslinked polyethylene (PE-X) - Part 5 Fitness for purpose of the system《冷热水装置用塑料管道系统 交联聚乙烯(.pdf》由会员分享,可在线阅读,更多相关《EN ISO 15875-5-2003 en Plastics piping systems for hot and cold water installations - Crosslinked polyethylene (PE-X) - Part 5 Fitness for purpose of the system《冷热水装置用塑料管道系统 交联聚乙烯(.pdf(16页珍藏版)》请在麦多课文档分享上搜索。
1、BRITISH STANDARD BS EN ISO 15875-5:2003 Plastics piping systems for hot and cold water installations Crosslinked polyethylene (PE-X) Part 5: Fitness for purpose of the system The European Standard EN ISO 15875-5:2003 has the status of a British Standard ICS 23.040.01; 91.140.60 BS EN ISO 15875-5:200
2、3 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 14 June 2004 BSI 14 June 2004 ISBN 0 580 43886 4 National foreword This British Standard is the official English language version of EN ISO 15875-5:2003. It is identical with ISO 15875-5:2003.
3、 The UK participation in its preparation was entrusted by Technical Committee PRI/88, Plastics piping systems, to Subcommittee PRI/88/2, Plastics piping systems for pressure applications, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on req
4、uest to its secretary. Additional information The UK voted against the acceptance of this standard at the CEN Formal Vote, and PRI 88/2 will maintain BS 7291-1:2001 1) , BS 7291-2:2001 2)and BS 7291-3:2001 3)and strongly recommends the continued use of polybutylene (PB) and crosslinked polyethylene
5、(PE-X) piping systems certified to BS 7291-2 or BS 7291-3, Class S, for the following reasons. a) Attention is drawn to the statement in the Scope of BS EN ISO 15875-1 relating to the exclusion from it of piping systems having service conditions in excess of those quoted in BS EN ISO 15875-1, Table
6、1. Central heating systems in the UK fall into this category. BS 7291-1 states the service conditions for UK systems where the maximum system service temperature for sealed central heating systems, designated as Class S, is 105 C and the system malfunction temperature is 114 C. Both these temperatur
7、es are significantly in excess of those specified in BS EN ISO 15875-1, Table 1 and these UK systems are therefore not covered by this standard. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for cha
8、nge, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. 1) BS 7291-1:2001, Thermoplastics pipes and associated fittings for hot and cold water for domestic purposes and heating installations in buildings Part 1: General requirem
9、ents. 2) BS 7291-2:2001, Thermoplastics pipes and associated fittings for hot and cold water for domestic purposes and heating installations in buildings Part 2: Specification for polybutylene (PB) pipes and associated fittings. 3) BS 7291-3:2001, Thermoplastics pipes and associated fittings for hot
10、 and cold water for domestic purposes and heating installations in buildings Part 3: Specification for cross-linked polyethylene (PE-X) pipes and associated fittings. Amendments issued since publication Amd. No. Date CommentsBS EN ISO 15875-5:2003 BSI 14 June 2004 i b) In addition to the above: 1) T
11、he normal maximum operating cold water supply pressure in the UK is 12.5 bar 4)which some categories of piping systems in the BS EN ISO 15875 series of standards do not meet. 2) The BS EN ISO 15875 series of standards does not specifically describe push fit joints, which are the predominant jointing
12、 method in the UK. 3) There is a disparity between the malfunction temperature quoted in BS EN ISO 15875-1, Table 1 (100 C) and the malfunction temperatures applicable to boilers (110 C) conforming to BS EN 297:1994 5) , BS EN 483:2000 6)and BS EN 625:1996 7) . Consequently piping systems could be s
13、ubjected to temperatures in service for which they have not been tested. 4) The unique and traditional practice in the UK is to use products certified to BS 7291-2 or BS 7291-3, Class S, for all applications, as defined in BS 7291-1. This is recognized in the national annex to BS EN 12828 8) , which
14、 recommends the use of systems suitable for the maximum temperatures and pressures for their intended application specified in BS 7291-1. Updated versions of BS 7291-1, BS 7291-2 and BS 7291-3 are being prepared, which maintain these traditional UK operating conditions, and measures are being taken
15、to address this issue in appropriate harmonized European Standards. Cross-references 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”,
16、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 i
17、mmunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN ISO title page, pages 2 to 10, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.
18、 4) 1 bar = 100 kPa. 5) BS EN 297:1994, Gas-fired central heating boilers Type B 11and B 11BSboilers fitted with atmospheric burners of nominal heat input not exceeding 70 kW. 6) BS EN 483:2000, Gas-fired central heating boilers Type C boilers of nominal heat input not exceeding 70 kW. 7) BS EN 625:
19、1996, Gas-fired central heating boilers Specific requirements for the domestic hot water operation of combination boilers of nominal heat input not exceeding 70 kW. 8) BS EN 12828, Heating systems in buildings Design for water-based heating systems.ii blankEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHEN
20、ORM ENISO158755 December2003 ICS23.040.01;91.140.60 Englishversion Plasticspipingsystemsforhotandcoldwaterinstallations Crosslinkedpolyethylene(PEX)Part5:Fitnessforpurposeof thesystem(ISO158755:2003) Systmesdecanalisationsenplastiquepourles installationsdeauchaudeetfroidePolythynerticul (PEX)Partie5
21、:Aptitudelemploidusystme(ISO 158755:2003) KunststoffRohrleitungssystemefrdieWarmund KaltwasserinstallationVernetztesPolyethylen(PEX) Teil5:GebrauchstauglichkeitdesSystems(ISO15875 5:2003) ThisEuropeanStandardwasapprovedbyCENon17March2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulatio
22、nswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(En
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