1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationDD CEN ISO/TS 22391-7:2011Plastics piping systems for hot and cold water installations Polyethylene of raised temperature resistance (PE-RT)Part 7: Guidance for the assessment of
2、 conformity (ISO/TS 22391-7:2011)DD CEN ISO/TS 22391-7:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of CEN ISO/TS 22391-7:2011.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/88/2, Plastics piping for pressure applications. A li
3、st of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2011 ISBN 978 0 580 76302 1 ICS 23.040.01; 91.140.60; 93.025 C
4、ompliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2011.Amendments issued since publicationDate Text affectedTECHNICAL SPECIFICATION SPCIFICATION TECHNIQ
5、UE TECHNISCHE SPEZIFIKATION CEN ISO/TS 22391-7 November 2011 ICS 93.025; 91.140.60; 23.040.01 English Version Plastics piping systems for hot and cold water installations - Polyethylene of raised temperature resistance (PE-RT) - Part 7: Guidance for the assessment of conformity (ISO/TS 22391-7:2011)
6、 Systmes de canalisations en plastique pour les installations deau chaude et froide - Polythylne de meilleure rsistance la temprature (PE-RT) - Partie 7: Guide pour lvaluation de la conformit (ISO/TS 22391-7:2011) Kunststoff-Rohrleitungssysteme fr die Warm- und Kaltwasserinstallation - Polyethylen e
7、rhhter Temperaturbestndigkeit (PE-RT) - Teil 7: Empfehlungen fr die Beurteilung der Konformitt (ISO/TS 22391-7:2011)This Technical Specification (CEN/TS) was approved by CEN on 14 November 2011 for provisional application. The period of validity of this CEN/TS is limited initially to three years. Af
8、ter two years the members of CEN will be requested to submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard. CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available prom
9、ptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached. CEN members are the national standards bodies of Austria, Belgium,
10、Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE
11、 FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. CEN ISO/TS 22391-7:2011: EDD CEN ISO/TS 22391
12、-7:2011CEN ISO/TS 22391-7:2011 (E) 3 Foreword This document (CEN ISO/TS 22391-7:2011) has been prepared by Technical Committee CEN/TC 155 “Plastics piping systems and ducting systems“, the secretariat of which is held by NEN, in collaboration with Technical Committee ISO/TC 138 “Plastics pipes, fitt
13、ings and valves for the transport of fluids“. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Re
14、gulations, the national standards organizations of the following countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembo
15、urg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DD CEN ISO/TS 22391-7:2011 ISO/TS 22391-7:2011(E) ISO 2011 All rights reserved iiiContents Page Foreword . . iv Introduction . v 1 Scope . . 1 2 Normative references . .
16、 1 3 Terms and definitions . 2 4 Abbreviated terms . 5 5 General . 5 6 Testing and inspection . 6 6.1 Grouping . . 6 6.2 Type testing . 7 6.3 Batch release tests . . 10 6.4 Process verification tests 11 6.5 Audit tests . . 12 6.6 Indirect tests . . 13 6.7 Test records . 13 Bibliography . . 14 DD CEN
17、 ISO/TS 22391-7:2011 ISO/TS 22391-7:2011(E) iv ISO 2011 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies(ISO member bodies). The work of preparing International Standards is normally carried out through ISOtec
18、hnical committees. Each member body interested in a subject for which a technical committee has beenestablished has the right to be represented on that committee. International organizations, governmental andnon-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
19、with theInternational 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 committees is to prepare International Standards. Draft Int
20、ernational Standardsadopted by the technical committees are circulated to the member bodies for voting. Publication as anInternational Standard requires approval by at least 75 % of the member bodies casting a vote. In other circumstances, particularly when there is an urgent market requirement for
21、such documents, atechnical committee may decide to publish other types of normative document: an ISO Publicly Available Specification (ISO/PAS) represents an agreement between technical experts in an ISO working group and is accepted for publication if it is approved by more than 50 % of the members
22、of the parent committee casting a vote; an ISO Technical Specification (ISO/TS) represents an agreement between the members of a technicalcommittee and is accepted for publication if it is approved by 2/3 of the members of the committee castinga vote. An ISO/PAS or ISO/TS is reviewed after three yea
23、rs in order to decide whether it will be confirmed for afurther three years, revised to become an International Standard, or withdrawn. If the ISO/PAS or ISO/TS isconfirmed, it is reviewed again after a further three years, at which time it must either be transformed into anInternational Standard or
24、 be withdrawn. Attention is drawn to the possibility that some of the elements of this document may be the subject of patentrights. ISO shall not be held responsible for identifying any or all such patent rights. ISO/TS 22391-7 was prepared by the European Committee for Standardization (CEN) Technic
25、al CommitteeTC 155, Plastics piping systems and ducting systems, in collaboration with ISO Technical CommitteeISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 2, Plastics pipesand fittings for water supplies, in accordance with the Agreement on technical c
26、ooperation between ISO andCEN (Vienna Agreement). 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 Part 2: Pipes Part 3: Fittings Part 5: Fitness for
27、purpose of the system Part 7: Guidance for the assessment of conformity Technical Specification DD CEN ISO/TS 22391-7:2011 ISO/TS 22391-7:2011(E) ISO 2011 All rights reserved vIntroduction At the date of publication of this part of ISO 22391, System Standards for piping systems of other plasticsmate
28、rials used for the same application are the following: ISO 15874 (all parts), Plastics piping systems for hot and cold water installations Polypropylene (PP) ISO 15875 (all parts), Plastics piping systems for hot and cold water installations Crosslinked polyethylene(PE-X) ISO 15876 (all parts), Plas
29、tics piping systems for hot and cold water installations Polybutylene (PB) ISO 15877 (all parts), Plastics piping systems for hot and cold water installations Chlorinated poly(vinylchloride) (PVC-C) Figures 1 and 2 are intended to provide general information on the concept of testing and organizatio
30、n ofthose tests used for the purpose of the assessment of conformity. For each kind of test, i.e. type test (TT),batch release test (BRT), process verification test (PVT), and audit test (AT), this part of ISO 22391 details theapplicable characteristics to be assessed as well as the frequency and sa
31、mpling of testing. A typical scheme for the assessment of conformity of pipes, fittings or assemblies by manufacturers is given inFigure 1. Test performed by or on behalf of the manufacturerProductdevelopmentTT BRT (each batch)01-01-yearN01-01-yearN+1BatchBatchBatchBatchBatchBatchPVT (periodically o
32、n selected items)PRODUCTIONKey BRT batch release test PVT process verification testTT type testing Figure 1 Typical scheme for the assessment of conformity by a manufacturer A typical scheme for the assessment of conformity of pipes, fittings or assemblies by manufacturers, includingcertification, i
33、s given in Figure 2. DD CEN ISO/TS 22391-7:2011 ISO/TS 22391-7:2011(E) vi ISO 2011 All rights reserveda test laboratory on behalf of an inspection bodyor certification bodyTest performed by or on behalf of the manufacturerBRT (each batch)AT AT AT ATATTests performed byBatchBatchBatchBatch01-01-yearN
34、01-01-yearN+1PVT (periodically on selected items)ProductdevelopmentTTBatchBatchPRODUCTIONKey AT audit test BRT batch release test PVT process verification testTT type testing Figure 2 Typical scheme for the assessment of conformity by a manufacturer,including certification This part of ISO 22391 spe
35、cifies the requirements for a piping system when made from polyethylene (PE-RT).The piping system is intended to be used for hot and cold water installations and heating system installations. See the foreword for a complete listing of all available parts of ISO 22391. This part of ISO 22391 gives gu
36、idance for the assessment of conformity of materials, components, joints, andassemblies. It is intended for use by certification bodies, inspection bodies, testing laboratories, andmanufacturers. DD CEN ISO/TS 22391-7:2011TECHNICAL SPECIFICATION ISO/TS 22391-7:2011(E) ISO 2011 All rights reserved 1P
37、lastics piping systems for hot and cold water installations Polyethylene of raised temperature resistance (PE-RT) Part 7: Guidance for the assessment of conformity 1 Scope This part of ISO 22391 gives guidance on the assessment of conformity of products and assemblies inaccordance with other applica
38、ble part(s) of ISO 22391 intended to be included in the manufacturers qualityplan as part of the quality management system and for the establishment of certification procedures. In conjunction with the other parts, this part of ISO 22391 is applicable to hot and cold water installationswithin buildi
39、ngs for the conveyance of water, whether or not intended for human consumption (domesticsystems), under design pressures and temperatures appropriate to the class of application. 2 Normative references The following referenced documents are indispensable for the application of this document. For dat
40、edreferences, only the edition cited applies. For undated references, the latest edition of the referenceddocument (including any amendments) applies. ISO 2859-1, Sampling procedures for inspection by attributes Part 1: Sampling schemes indexed byacceptance quality limit (AQL) for lot-by-lot inspect
41、ion ISO 3951-1, Sampling procedures for inspection by variables Part 1: Specification for single sampling plansindexed by acceptance quality limit (AQL) for lot-by-lot inspection for a single quality characteristic and asingle AQL ISO 3951-2, Sampling procedures for inspection by variables Part 2: G
42、eneral specification for singlesampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection of independent qualitycharacteristics ISO 3951-3, Sampling procedures for inspection by variables Part 3: Double sampling schemes indexed byacceptance quality limit (AQL) for lot-by-lot
43、inspection ISO 3951-5, Sampling procedures for inspection by variables Part 5: Sequential sampling plans indexed byacceptance quality limit (AQL) for inspection by variables (known standard deviation) ISO 22391-1:2009, Plastics piping systems for hot and cold water installations Polyethylene of rais
44、edtemperature resistance (PE-RT) Part 1: General ISO 22391-2:2009, Plastics piping systems for hot and cold water installations Polyethylene of raisedtemperature resistance (PE-RT) Part 2: Pipes ISO 22391-3:2009, Plastics piping systems for hot and cold water installations Polyethylene of raisedtemp
45、erature resistance (PE-RT) Part 3: Fittings DD CEN ISO/TS 22391-7:2011 ISO/TS 22391-7:2011(E) 2 ISO 2011 All rights reservedISO 22391-5:2009, Plastics piping systems for hot and cold water installations Polyethylene of raisedtemperature resistance (PE-RT) Part 5: Fitness for purpose of the system 3
46、Terms and definitions For the purposes of this document, the terms and definitions given in ISO 22391-1, ISO 22391-2, ISO 22391-3and the following apply. 3.1 certification body impartial body, governmental or non-governmental, possessing the necessary competence and responsibilityto carry out certif
47、ication of conformity according to given rules of procedure and management NOTE A certification body is preferably compliant with ISO/IEC 170215. 3.2 inspection body body, that performs inspection NOTE 1 A body can be an organization, or part of an organization. ISO/IEC 17020:19984, 2.2 NOTE 2 An in
48、spection body is preferably compliant with ISO/IEC 170204. 3.3 testing laboratory laboratory which measures, tests, calibrates or otherwise determines the characteristics of the performance ofmaterials and products NOTE 1 In the context of this part of ISO/TS 22391, the materials and products can be
49、 subjected to type testing, batchrelease testing, process verification testing, audit testing, and witness testing, as applicable. NOTE 2 A testing laboratory is preferably compliant with ISO/IEC 170256. 3.4 quality management system management system to direct and control an organization with regard to qualityISO 9000:20052, 3.2.3 NOTE Requirements for quality management systems are given in ISO 90013. 3.5 quality plan document setting out the specific quali
