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. ISBN 978-0-626-21253-7 SANS 22391-1:2008 Edition 1 ISO 22391-1:2007 Edition 1SOUTH AFRICAN NATIONAL STANDARD Plastics piping systems for hot and cold wat
4、er installations Polyethylene of raised temperature resistance (PE-RT) Part 1: General This national standard is the identical implementation of ISO 22391-1:2007 and is adopted with the permission of the International Organization for Standardization. Published by SABS Standards Division 1 Dr Latega
5、n Road Groenkloof Private Bag X191 Pretoria 0001 Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 22391-1: 2008 Edition 1 ISO 22391-1: 2007 Edition 1 Table of changes Change No.
6、Date Scope National foreword This South African standard was approved by National Committee SABS SC 138H, Water and sanitation Equipment and systems Plastics pipes and fittings, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SA
7、NS document was published in December 2008. This standard may only be used and printed by approved subscription and freemailing clients of the SABS. Reference number ISO 22391-1:2007(E) ISO 2007INTERNATIONAL STANDARD ISO 22391-1 First edition 2007-01-15 Plastics piping systems for hot and cold water
8、 installations Polyethylene of raised temperature resistance (PE-RT) Part 1: General Systmes de canalisations en plastique pour les installations deau chaude et froide Polythylne de meilleure rsistance la temprature (PE-RT) Partie 1: Gnralits SANS 22391-1:2008This standard may only be used and print
9、ed by approved subscription and freemailing clients of the SABS.ISO 22391-1:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed
10、 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. Adobe is a trademark of Adobe Systems Incorporated. Details of the s
11、oftware 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 ISO member bodies. In the unlikely event that a problem relating to i
12、t is found, please inform the Central Secretariat at the address given below. ISO 2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permi
13、ssion 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 Web www.iso.org Published in Switzerland ii ISO 2007 All rights reser
14、vedSANS 22391-1:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.ISO 22391-1:2007(E) ISO 2007 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms, definitions, symbols and abbreviat
15、ed terms. 2 3.1 Terms and definitions. 2 3.2 Symbols . 5 3.3 Abbreviated terms 6 4 Classification of service conditions . 7 5 Material 8 5.1 General. 8 5.2 Influence on water intended for human consumption 8 5.3 Reprocessable material . 8 6 System performance requirement 8 Bibliography . 9 SANS 2239
16、1-1:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.ISO 22391-1:2007(E) iv ISO 2007 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodi
17、es). The work of preparing International 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
18、non-governmental, in liaison with ISO, also 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, P
19、art 2. The main task of technical committees 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 casti
20、ng a vote. Attention is drawn to the possibility 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 22391-1 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and v
21、alves for the transport of fluids, Subcommittee SC 2, Plastics pipes and fittings for water supplies. ISO 22391 consists of the following parts, under the general title Plastics piping systems for hot and cold water installations Polyethylene of raised temperature resistance (PE-RT): Part 1: General
22、 Part 2: Pipes Part 3: Fittings Part 5: Fitness for purpose of the system SANS 22391-1:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.ISO 22391-1:2007(E) ISO 2007 All rights reserved v Introduction ISO 22391, the system standard, specifies
23、 the requirements for a piping system and its components when made from polyethylene of raised temperature resistance (PE-RT). 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
24、 caused by the products covered by ISO 22391: a) no information is provided as to whether the products may be used without restriction; b) existing national regulations concerning the use and/or characteristics of the products remain in force. This part of ISO 22391 specifies the general aspects of
25、the plastics piping system. At the time of its publication, system standards for piping systems of other plastics materials used for the same application are ISO 15874:2003, Plastics piping systems for hot and cold water installations Polypropylene (PP), ISO 15875:2003, Plastics piping systems for h
26、ot and cold water installations Crosslinked polyethylene (PE-X), ISO 15876:2003, Plastics piping systems for hot and cold water installations Polybutylene (PB), and ISO 15877:2003, Plastics piping systems for hot and cold water installations Chlorinated poly(vinyl chloride) (PVC-C). SANS 22391-1:200
27、8This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 22391-1:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.INTERNATIONAL STANDARD ISO 22391-1:2007(E) ISO 2007 All rights reserved 1
28、Plastics piping systems for hot and cold water installations Polyethylene of raised temperature resistance (PE-RT) Part 1: General 1 Scope This part of ISO 22391 specifies the general aspects of piping systems made of polyethylene of raised temperature resistance (PE-RT), intended to be used for hot
29、 and cold water installations within buildings for the conveyance of water whether or not the water is intended for human consumption (domestic systems) or heating systems under specified design pressures and temperatures according to the class of application. It covers a range of service conditions
30、 (classes of application), design pressures and pipe dimension classes, and also specifies test parameters and defines terms, symbols and abbreviated terms. When used in conjunction with the other parts of ISO 22391, it is respectively applicable to PE-RT pipes, fittings, their joints, and to joints
31、 having components of PE-RT as well as of other plastics and non-plastics materials, used for hot and cold water installations. It is not applicable for values of design temperature, maximum design temperature or malfunction temperature in excess of those it specifies. NOTE It is the responsibility
32、of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes. 2 Normative references The following referenced documents are indispensable for the applic
33、ation of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 472, Plastics Vocabulary ISO 1043-1, Plastics Symbols and abbreviated terms Part 1: Basic polymers and their spe
34、cial characteristics ISO 4065, Thermoplastics pipes Universal wall thickness table ISO 22391-2:2006, Plastics piping systems for hot and cold water installations Polyethylene of raised temperature resistance (PE-RT) Part 2: Pipes ISO 22391-3:2006, Plastics piping systems for hot and cold water insta
35、llations Polyethylene of raised temperature resistance (PE-RT) Part 3: Fittings ISO 22391-5:2006, Plastics piping systems for hot and cold water installations Polyethylene of raised temperature resistance (PE-RT) Part 5: Fitness for purpose of the system SANS 22391-1:2008This standard may only be us
36、ed and printed by approved subscription and freemailing clients of the SABS.ISO 22391-1:2007(E) 2 ISO 2007 All rights reserved3 Terms, definitions, symbols and abbreviated terms 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 472 and ISO 1043-1 and
37、 the following apply. 3.1.1 Geometrical terms and definitions 3.1.1.1 nominal size DN numerical designation of the size of a component, which is a convenient round number, approximately equal to the manufacturing dimensions in millimetres (mm) 3.1.1.2 nominal size DN/OD nominal size, related to outs
38、ide diameter 3.1.1.3 nominal outside diameter d nspecified diameter, in millimetres, assigned to a nominal size DN/OD 3.1.1.4 outside diameter (at any point) d emeasured outside diameter through the cross-section at any point of a pipe or spigot end of a fitting, rounded up to the nearest 0,1 mm 3.1
39、1.5 mean outside diameter d emmeasured length of the outer circumference of a pipe or spigot end of a fitting in any cross-section, divided by (= 3,142) rounded up to the nearest 0,1 mm 3.1.1.6 minimum mean outside diameter d em,minminimum value of the mean outside diameter as specified for a given
40、 nominal size 3.1.1.7 maximum mean outside diameter d em,maxmaximum value of the mean outside diameter as specified for a given nominal size 3.1.1.8 mean inside diameter of socket d smarithmetical mean of two measured inside diameters perpendicular to each other at the mid-point of the socket length
41、 SANS 22391-1:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.ISO 22391-1:2007(E) ISO 2007 All rights reserved 3 3.1.1.9 out-of-roundness ovality difference between the measured maximum outside diameter and the measured minimum outside diam
42、eter in the same cross-sectional plane of a pipe or spigot end of a fitting, or the difference between the measured maximum inside diameter and the measured minimum inside diameter in the same cross-sectional plane of a socket 3.1.1.10 nominal wall thickness e nnumerical designation of the wall thic
43、kness of a component, approximately equal to the manufacturing dimension in millimetres (mm) 3.1.1.11 wall thickness e measured wall thickness at any point around the circumference of a component, rounded up to the nearest 0,1 mm 3.1.1.12 minimum wall thickness e minminimum wall thickness at any poi
44、nt around the circumference of a component, as specified 3.1.1.13 maximum wall thickness e maxmaximum wall thickness at any point around the circumference of a component, as specified 3.1.1.14 tolerance permitted variation of the specified value of a quantity, expressed as the difference between the
45、 permitted maximum and the permitted minimum value 3.1.1.15 pipe series S dimensionless number for pipe designation conforming to ISO 4065 NOTE According to ISO 22391, the pipe series S is used as a means for selecting pipe sizes for practical purposes (see ISO 22391-2). 3.1.1.16 calculated pipe val
46、ue S calcvalue for a specific pipe calculated by the equation, rounded up to the nearest 0,1 mm, nn calc n 2 de S e = where d nis the nominal outside diameter, in millimetres, and e nis the nominal wall thickness, expressed in millimetres SANS 22391-1:2008This standard may only be used and printed b
47、y approved subscription and freemailing clients of the SABS.ISO 22391-1:2007(E) 4 ISO 2007 All rights reserved3.1.2 Terms and definitions related to service conditions 3.1.2.1 design pressure p Dhighest pressure related to the circumstances for which the system has been designed and is intended to b
48、e used NOTE The design pressure is equivalent to the maximum design pressure (MDP), as specified in EN 806-1. 3.1.2.2 hydrostatic stress stress, expressed in megapascals, induced in the wall of a pipe when a pressure is applied using water as a medium, and calculated using the approximate equation e
49、m min min ) ( 2 de p e = where p is the applied pressure, in megapascals, d emis the mean outside diameter of the pipe, in millimetres, and e minis the minimum wall thickness, in millimetres 3.1.2.3 design temperature T Dtemperature or combination of temperatures and times of the conveyed water, dependent on the service conditions for which the system has been designed 3.1.2.4 maximum design temperature T maxhighest design temperature occurring for short perio
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