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1、DRAFT FOR DEVELOPMENT DD CEN/TS 1555-7:2003 Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 7: Guidance for the assessment of conformity The European Standard CEN/TS 1555-7:2003 has the status of a British Standard ICS 23.040.01; 91.140.40 ? Licensed Copy: London South
2、 Bank University, London South Bank University, Tue Dec 12 03:01:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI DD CEN/TS 1555-7:2003 This Draft for Development was published under the authority of the Standards Policy and Strategy Committee on 8 January 2004 BSI 8 January 2004 ISBN 0 580 42157 0 Nat
3、ional foreword This Draft for Development (DD) is the official English language version of CEN/TS 1555-7:2003. No existing British Standard will be made obsolescent by implementation of this part of this standard. NOTE CEN/TC 234 in co-operation with CEN/TC 155 drafted an installation document for g
4、as applications and this was published as EN 12007-2:2000, Gas supply systems Pipelines for maximum operating pressure up to and including 16 bar Part 2: Specific functional recommendations for polyethylene (MOP up to and including 10 bar)1). As a consequence of this, TC 155 agreed that they would n
5、ot draft a Part 6 in the EN 1555 series. The UK participation in its preparation was entrusted by Technical Committee PRI/88 (previously PRI/61), Plastics piping systems, to Subcommittee PRI/88/2 (previously PRI/61/2), Plastics piping for pressure applications, which has the responsibility to: A lis
6、t of organizations represented on this subcommittee can be obtained on request to its secretary. Attention is drawn to any appropriate safety precautions. It is assumed in the drafting of a standard that the execution of its provisions is entrusted to appropriately qualified and competent people. Th
7、e UK National Annex NA attached to this document provides additional information on the selection and installation of piping systems and components in the UK. Attention is drawn to the following statutory regulations: Health and Safety at Work etc. Act 1974 and subsequent regulations. Cross-referenc
8、es 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”, or by using the “Search” facility of the BSI Electronic Catalogue or of British St
9、andards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. 1)It is the opinion of Technical Committee PRI/88 that the Code of Practice published by the gas industry represents established UK practice, co
10、pies of which are available from the current national network distributor, Transco. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related inte
11、rnational and European developments and promulgate them in the UK. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:01:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI DD CEN/TS 1555-7:2003 i This publicat
12、ion is not to be regarded s a British Standard. It is being issued in the Draft for Development series of publications and is of a provisional nature because this is not a full European Standard and under CEN rules member bodies have only to announce that it is available; however, the DD documents a
13、re an accepted means of announcing that the CEN/TS is available. It should be applied on this provisional basis, so that information and experience on its practical application may be obtained. Comments arising from the use of this Draft for Development are requested so that UK experience can be rep
14、orted to the European organization responsible for its conversion to a European Standard. A review of this publication will be initiated 2 years after its publication by the European organization so that a decision can be taken on its status at the end of its 3-year life. Notification of the start o
15、f the review period will be made in an announcement in the appropriate issue of Update Standards. According to the replies received by the end of the review period, the responsible BSI Committee will decide whether to support the conversion into a European Standard, to extend the life of the Technic
16、al Specification or to withdraw it. Comments should be sent in writing to the Secretary of BSI Technical Committee PRI/88 at British Standards House, 389 Chiswick High Road, London W4 4AL, giving the document reference and clause number and proposing, where possible, an appropriate revision of the t
17、ext. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 27, the National Annex NA page, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Li
18、censed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:01:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:01:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI TECHNICAL SPECIFI
19、CATION SPCIFICATION TECHNIQUE TECHNISCHE SPEZIFIKATION CEN/TS 1555-7 April 2003 ICS 23.040.01; 91.140.40 English version Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 7: Guidance for the assessment of conformity Systmes de canalisations en plastiques pour la dist
20、ribution de combustibles gazeux - Polythylne (PE) - Partie 7: Guide pour lvaluation de la conformit Kunststoff-Rohrleitungssystme fr die Gasversorgung - Polyethylen (PE) - Teil 7: Empfehlungen fr die Beurteilung der Konformitt This Technical Specification (CEN/TS) was approved by CEN on 25 November
21、2002 for provisional application. The period of validity of this CEN/TS is limited initially to three years. After 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 requi
22、red to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available. 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 me
23、mbers 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 United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION
24、COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. CEN/TS 1555-7:2003 E Licensed Copy: London South Bank University,
25、 London South Bank University, Tue Dec 12 03:01:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN/TS 1555-7:2003 (E) 2 Contents Foreword3 Introduction.4 1Scope5 2Normative references5 3Terms and definitions, symbols and abbreviations 6 3.1Terms and definitions.6 3.2Abbreviations8 4Requirements 9 4.1
26、General.9 4.2Testing and inspection.9 4.3Technical file 24 Annex A (normative) Change of compound.25 A.1General.25 A.2Change.25 A.3Type testing required for re-evaluation 25 Bibliography27 Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:01:25 GMT+00:00 2006,
27、Uncontrolled Copy, (c) BSI CEN/TS 1555-7:2003 (E) 3 Foreword This document (CEN/TS 1555-7:2003) has been prepared by Technical Committee CEN /TC 155, “Plastics piping systems and ducting systems“, the secretariat of which is held by NEN. It has been prepared in liaison with CEN/TC 234 “Gas supply“.
28、This Technical Specification can be used to support elaboration of national third party certification procedures for products conforming to the applicable Parts of EN 1555. This Technical Specification is a Part of a System Standard for plastics piping systems of a particular material for a specifie
29、d application. 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 and valves for the transport of fluids“, which is a Technical Committee of the International Organization for Standardization (ISO). Th
30、ey are supported by separate standards on test methods to which references are made throughout the System Standard. The System Standards are consistent with general standards on functional requirements and on recommended practice for installation. EN 1555 consists of the following Parts, under the g
31、eneral title Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) Part 1: General Part 2: Pipes Part 3: Fittings Part 4: Valves Part 5: Fitness for purpose of the system Part 7: Guidance for assessment of conformity (this Technical Specification). NOTE The document dealing wit
32、h recommended practice for installation which was initially submitted for CEN enquiry as prEN 1555-6 was withdrawn when EN 12007-2 1, prepared by CEN/TC 234 “Gas supply“, was published with the title “Gas supply systems - Pipelines for maximum operating pressure up to and including 16 bar - Part 2:
33、Specific functional recommendations for polyethylene (MOP up to and including 10 bar)“. This document includes the following: Annex A (normative) Change of compound Bibliography. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bo
34、und to announce this CEN Technical Specification: 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. Licensed Copy: London South
35、Bank University, London South Bank University, Tue Dec 12 03:01:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN/TS 1555-7:2003 (E) 4 Introduction The System Standard, of which this is Part 7, specifies the requirements for a piping system and its components made from polyethylene (PE) and is inten
36、ded to be used for the supply of gaseous fuels. Requirements and test methods for material and components of the piping system are specified in EN 1555-1, EN 1555-2, EN 1555-3 and EN 1555-4. Characteristics for fitness for purpose are covered in EN 1555-5. Recommended practice for installation is gi
37、ven in EN 12007-2 1 prepared by CEN/TC 234. This Part of EN 1555 gives guidance to procedures and requirements for the assessment of conformity of materials, components, joints and is intended to be used by manufacturers, inspection bodies, testing laboratories and certification bodies. Licensed Cop
38、y: London South Bank University, London South Bank University, Tue Dec 12 03:01:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN/TS 1555-7:2003 (E) 5 1 Scope This Part of EN 1555 gives guidance for assessment of conformity to be included in the manufacturers quality plan as part of the quality syst
39、em. This Part of EN 1555 includes: a) requirements for materials, components and joints given in the applicable Parts of EN 1555; b) requirements for the manufacturers quality system; NOTE 1It is recommended that the quality system conforms to EN ISO 9001 2. c) definitions and procedures to be appli
40、ed if third party certification is involved. NOTE 2If third party certification is involved, it is recommended that the certification body is accredited to EN 45011 3 or EN 45012 4, as applicable. In conjunction with the other Parts of EN 1555 it is applicable to PE pipes, fittings, and valves, thei
41、r joints and to joints with components of other materials intended to be used under the following conditions: a) a maximum operating pressure, MOP, up to and including 10 bar 1); b) an operating temperature of 20 C as reference temperature. NOTE 3For other operating temperatures, derating coefficien
42、ts can be used, see EN 1555-5. For mechanical fittings conforming to ISO 10838-1 5, ISO 10838-2 6 or ISO 10838-3 7, as applicable, guidance for assessment of conformity is not given in this part of EN 1555. When requested, a quality plan based on the tests mentioned in ISO 10838-1 5, ISO 10838-2 6 o
43、r ISO 10838-3 7, as applicable, should be set up in agreement between user and manufacturer. EN 1555 covers a range of maximum operating pressures and gives requirements concerning colours and additives. NOTE 4It is the responsibility of the purchaser or specifier to make the appropriate selections
44、from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes. 2 Normative references This European Technical Specification incorporates by dated or undated reference, provisions from other publications. These normativ
45、e references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Technical Specification only when incorporated in it by amendment or revision. For
46、undated references the latest edition of the publication referred to applies (including amendments). EN 728, Plastics piping and ducting systems Polyolefin pipes and fittings Determination of oxidation induction time. EN 1555-1:2002, Plastics piping systems for the supply of gaseous fuels Polyethyle
47、ne (PE) Part 1: General. EN 1555-2:2002, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 2: Pipes. EN 1555-3:2002, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 3: Fittings. EN 1555-4:2002, Plastics piping systems for the supply of gase
48、ous fuels Polyethylene (PE) Part 4: Valves. EN 1555-5:2002, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 5: Fitness for purpose of the system. EN ISO 12162, Thermoplastics materials for pipes and fittings for pressure applications Classification and designation Over
49、all service (design) coefficient (ISO 12162:1995). 1) 1 bar = 0,1 MPa Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:01:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN/TS 1555-7:2003 (E) 6 ISO 2859-1, Sampling procedures for inspection by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection. ISO 2859-2, Sampling procedures for in