1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ICS 23.040.01; 83.140.30; 91.140.60 ISBN 0-626-15797-8 SANS 15875-2:2004 Edition 2 ISO 15875-2:2003 Edition 1 SOUTH AFRICAN NATIONAL STANDARD Plastics pi
4、ping systems for hot and cold water installations Crosslinked polyethylene (PE-X) Part 2: Pipes This national standard is the identical implementation of ISO 15875-2:2003 and is adopted with the permission of the International Organization for Standardization. Published by Standards South Africa 1 d
5、r lategan road groenkloof ! private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code +27 12 www.stansa.co.za Standards South Africa SANS 15875-2:2004 Edition 2 ISO 15875-2:2003 Edition 1 Table of changes Change No. Date Scope Abstract Specifies the characteristics of pip
6、es made from crosslinked polyethylene (PE-X) for piping systems intended to be used for hot and cold water installations within buildings for the conveyance of water, whether or not intended for human consumption (domestic systems), and for heating systems, under design pressures and temperatures ap
7、propriate to the class of application. Covers a range of service conditions (application classes), design pressures and pipe dimension classes. Keywords buildings, cross-linked materials, installation, pipe couplings, pipelines, pipes, pipework systems, plastics, polyethylene, potable water, specifi
8、cations, testing, tolerances (measurement), water, welded joints. National foreword This South African standard was approved by National Committee StanSA SC 5140.14A, Plastics pipes and fittings Polyethylene, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the
9、WTO/TBT agreement. This SANS edition cancels and replaces the first SANS edition (SANS 15875-2:2003). Reference numberISO 15875-2:2003(E)ISO 2003INTERNATIONAL STANDARD ISO15875-2First edition2003-12-01Plastics piping systems for hot and cold water installations Crosslinked polyethylene (PE-X) Part 2
10、: Pipes Systmes de canalisations en plastique pour les installations deau chaude et froide Polythylne rticul (PE-X) Partie 2: Tubes ISO 15875-2:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shal
11、l not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area.
12、Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by I
13、SO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electroni
14、c or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org W
15、eb www.iso.org Published in Switzerland ii ISO 2003 All rights reservedISO 15875-2:2003(E) ISO 2003 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International
16、 Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, a
17、lso take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical commit
18、tees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the pos
19、sibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 15875-2 was prepared by the European Committee for Standardization (CEN) in collaboration with Technical Committee ISO/TC 138,
20、 Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 2, Plastics pipes and fittings for water supplies, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement). Throughout the text of this document, read “.this European Standard.”
21、 to mean “.this International Standard.”. ISO 15875 consists of the following parts, under the general title Plastics piping systems for hot and cold water installations Crosslinked polyethylene (PE-X): Part 1: General Part 2: Pipes Part 3: Fittings Part 5: Fitness for purpose of the system Part 7:
22、Guidance for the assessment of conformity Technical Specification ISO 15875-2:2003(E) iv ISO 2003 All rights reservedContentsForewordvIntroduction.vii1Scope12Normative references13Terms and definitions, symbols and abbreviated terms.14Material.24.1Pipe material24.2Evaluation of s LCL-values.24.3Infl
23、uence on water intended for human consumption45General characteristics.45.1Appearance45.2Opacity.46Geometrical characteristics.46.1General.46.2Dimensions of pipes.47Mechanical characteristics.78Physical and chemical characteristics.89Performance requirements910Marking.910.1General requirements910.2M
24、inimum required marking.9Annex A (informative) Derivation of Scalc,max values.11A.1General.11A.2Design stress.11A.3 Derivation of maximum value of Scalc(Scalc,max)12A.4 Use of Scalc,maxto determine wall thickness12Bibliography13ISO 15875-2:2003(E) ISO 2003 All rights reserved vForewordThis document
25、(EN ISO 15875-2:2003) has been prepared by Technical Committee CEN/TC 155 “Plastics pipingsystems and ducting systems”, the secretariat of which is held by NEN, in collaboration with Technical CommitteeISO/TC 138 “Plastics pipes, fittings and valves for the transport of fluids“.NOTE This draft was s
26、ubmitted for CEN enquiry as prEN 12318-2:1996.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 June 2004, and conflicting national standards shall be withdrawn at the latest byDecember 2005.This sta
27、ndard is part of a System Standard for plastics piping systems of a particular material for a specifiedapplication. There are a number of such System Standards.System Standards are based on the results of the work undertaken in ISO/TC 138 “Plastics pipes, fittings andvalves for the transport of flui
28、ds“, 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 general standards on functional requirements and
29、 recommendedpractices for installation.EN ISO 15875 consists of the following Parts 1), under the general title Plastics piping systems for hot and coldwater installations Crosslinked polyethylene (PE-X) Part 1: General Part 2: Pipes (the present standard) Part 3: Fittings Part 5: Fitness for purpos
30、e of the system Part 7: Guidance for the assessment of conformity (CEN ISO/TS 15875-7).This Part of EN ISO 15875 includes the following: Annex A (informative): Derivation of Scalc,max; BibliographyAt the date of publication of this standard, System Standards for piping systems of other plastics mate
31、rials used forthe same application are the following:EN ISO 15874:2003, Plastics piping systems for hot and cold water installations Polypropylene (PP)(ISO 15875:2003)EN ISO 15876:2003, Plastics piping systems for hot and cold water installations Polybutylene (PB)(ISO 15876:2003)EN ISO 15877:2003, P
32、lastics piping systems for hot and cold water installations Chlorinated poly(vinyl chloride)(PVC-C) (ISO 15877:2003)For pipes and fittings which have conformed to the relevant national standard before 1stNovember 2003, as shownby the manufacturer or by a certification body, the national standard may
33、 continue to apply until 30th November2005.1) This System Standard does not incorporate a Part 4 Ancillary equipment or a Part 6 Guidance for installation. For ancillaryequipment separate standards can apply. Guidance on installation of plastics piping systems made from different materials,intended
34、to be used for hot and cold water installations, is given by ENV 12108:20011.ISO 15875-2:2003(E) vi ISO 2003 All rights reservedAccording to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Be
35、lgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.ISO 15875-2:2003(E) ISO 2003 All rights reserved viiIntroductionThe System Standard, of whic
36、h this is Part 2, specifies the requirements for a piping system when made fromcrosslinked polyethylene (PE-X). The piping system is intended to be used for hot and cold water installations.In respect of potential adverse effects on the quality of water intended for human consumption, caused by thep
37、roduct covered by this standard: This standard provides no information as to whether the product may be used without restriction in any of theMember States of the EU or EFTA; It should be noted that, while awaiting the adoption of verifiable European criteria, existing national regulationsconcerning
38、 the use and/or the characteristics of this product remain in force.Requirements and test methods for material and components, other than pipes are specified in Part 1 and Part 3 ofEN ISO 15875:2003. Characteristics for fitness for purpose (mainly for joints) are covered in Part 5. Part 7(CEN ISO/TS
39、 15875-7) gives guidance for the assessment of conformity.This Part of EN ISO 15875 specifies the characteristics of pipes.ISO 15875-2:2003(E) ISO 2003 All rights reserved 11 ScopeThis Part of EN ISO 15875 specifies the characteristics of pipes made from crosslinked polyethylene (PE-X) forpiping sys
40、tems intended to be used for hot and cold water installations within buildings for the conveyance of water,whether or not intended for human consumption (domestic systems), and for heating systems, under designpressures and temperatures appropriate to the class of application (see Table 1 of EN ISO
41、15875-1:2003).This standard covers a range of service conditions, (application classes), design pressures and pipe dimensionclasses. For values of TD, Tmax and Tmal in excess of those in Table 1 of Part 1, this standard does not apply.NOTE 1 It is the responsibility of the purchaser or specifier to
42、make the appropriate selections from these aspects, taking into account theirparticular requirements and any relevant national regulations and installation practices or codes.It also specifies the test parameters for the test methods referred to in this standard.In conjunction with the other Parts o
43、f EN ISO 15875 (see Foreword) it is applicable to PE-X pipes, their joints andto joints with components of PE-X, other plastics and non-plastics materials intended to be used for hot and coldwater installations.It is applicable to pipes with or without (a) barrier layer(s).NOTE 2 In the case of plas
44、tics pipes provided with a thin barrier layer, e.g. to prevent or greatly diminish the diffusion of gases and thetransmission of light into or through the pipe wall, the design stress requirements are totally met by the base polymer (PE-X).2 Normative referencesThis Standard incorporates by dated or
45、 undated reference, provisions from other publications. These normativereferences are cited at the appropriate places in the text and the publications are listed hereafter. For datedreferences, subsequent amendments to or revisions of any of these publications apply to this Standard only whenincorpo
46、rated in it by amendment or revision. For undated references the latest edition of the publication referred toapplies (including amendments).EN 578, Plastics piping systems Plastics pipes and fittings Determination of the opacityEN 579, Plastics piping systems Crosslinked polyethylene (PE-X) pipes D
47、etermination of degree ofcrosslinking by solvent extractionEN 743:1994, Plastics piping and ducting systems Thermoplastics pipes Determination of the longitudinalreversionEN 921:1994, Plastics piping systems Thermoplastics pipes Determination of resistance to internal pressureat constant temperature
48、EN ISO 15875-1:2003, Plastics piping systems for hot and cold water installations Crosslinked polyethylene(PE-X) Part 1: General (ISO 15875-1:2003)EN ISO 15875-5, Plastics piping systems for hot and cold water installations Crosslinked polyethylene (PE-X)Part 5: Fitness for purpose of the system (IS
49、O 15875-5:2003)EN ISO 3126, Plastics piping systems - Plastics piping components - Determination of dimensions (ISO 3126:2003)EN ISO 9080, Plastics piping and ducting systems Determination of the long-term hydrostatic strength ofthermoplastics materials in pipe form by extrapolation (ISO 9080:2003)3 Terms and definitions, symbols and abbreviated termsFor the purposes of this standard the terms and definitions, symbols and abbreviated terms given inEN ISO 15875-1:2003 apply.ISO 15875-2:2003(E) 2
