www bzfxw com BRITISH STANDARD BS EN 715 1995 BS 2782 11 Method 1123G 1995 Thermoplastics piping systems — End load bearing joints between small diameter pressure pipes and fittings — Test method for[.]
BRITISH STANDARD Thermoplastics piping systems — End-load-bearing joints between small diameter pressure pipes and fittings — Test method for leaktightness under internal water pressure, including end thrust The European Standard EN 715:1994 has the status of a British Standard UDC 621.643.4-036:621.643.2.06-98:620.165.29 BS EN 715:1995 BS 2782-11: Method 1123G:1995 BS EN 715:1995 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee PRI/61, Plastics piping systems and components, upon which the following bodies were represented: British Gas plc British Plastics Federation British Plumbing Fittings Manufacturers’ Association British Valve and Actuator Manufacturers’ Association Department of the Environment (British Board of Agrément) Department of the Environment (Building Research Establishment) Department of the Environment (Property and Buildings Directorate) Department of Transport Electricity Association Federation of Civil Engineering Contractors Health and Safety Executive Institute of Building Control Institute of Materials Institution of Civil Engineers Institution of Gas Engineers Institution of Water and Environmental Management National Association of Plumbing, Heating and Mechanical Services Contractors Pipeline Industries Guild Plastics Land Drainage Manufacturers’ Association Society of British Gas Industries Society of British Water Industries Water Companies Association Water Services Association of England and Wales The following bodies were also represented in the drafting of the standard, through subcommittees and panels: ERA Technology Ltd Engineering Equipment and Materials Users’ Association RAPRA Technology Ltd This British Standard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 June 1995 © BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference PRI/61 Draft for comment 92/41355 DC ISBN 580 23968 Amendments issued since publication Amd No Date Comments BS EN 715:1995 Contents Committees responsible National foreword Foreword Scope Principle Apparatus Test piece Procedure Test report Figure — Diagram of typical apparatus © BSI 10-1999 Page Inside front cover ii 3 4 i BS EN 715:1995 National foreword This British Standard has been prepared by Technical Committee PRI/61 and is the English language version of EN 715:1994 Thermoplastics piping systems — End-load-bearing joints between small diameter pressure pipes and fittings — Test method for leaktightness under internal water pressure, including end thrust, published by the European Committee for Standardization (CEN) It is incorporated into BS 2782 Methods of testing plastics — Part 11 Thermoplastics pipes, fittings and valves, as Method 1123G:1995, for association with related test methods for plastics materials and plastics piping components This test method has been prepared for reference by other standards under preparation by CEN for specification of plastics piping systems and components It has been implemented to enable experience of the method to be gained and for use for other fresh applications It is also for use for the revision or amendment of other national standards as practicable, but it should not be presumed to apply to any existing standard or specification which contains or makes reference to a different test method until that standard/specification has been amended or revised to make reference to this method and adjust any requirements as appropriate WARNING This British Standard does not necessarily detail all the precautions necessary to meet the requirements of the Health and Safety at Work etc Act 1974 Attention should be paid to any appropriate safety precautions and the method should be operated only by trained personnel A British Standard does not purport to include all the necessary provisions of a contract Users of British Standards are responsible for their correct application Compliance with a British Standard does not of itself confer immunity from legal obligations Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages to and a back cover This standard has been updated (see copyright date) and may have had amendments incorporated This will be indicated in the amendment table on the inside front cover ii © BSI 10-1999 EUROPEAN STANDARD EN 715 NORME EUROPÉENNE January 1994 EUROPÄISCHE NORM UDC 621.643.4-036:621.643.2.06-98:620.165.29 Descriptors: Pipelines, pressure pipes, plastic pipes, tubes, pipe fittings, joining, joints, adhesive bonded, fluid-tightness tests, leaktightness, pressure tests English version Thermoplastics piping systems — End-load-bearing joints between small diameter pressure pipes and fittings — Test method for leaktightness under internal water pressure, including end thrust Systèmes de canalisations thermoplastiques — Assemblages avec effet de fond entre tubes de petit diamètre avec pression et raccords — Méthode d’essai d’étanchéité avec pression d’eau interne avec effet de fond Rohrleitungssysteme aus Thermoplasten — Zugfeste Verbindungen zwischen Druckrohren und Formstücken mit kleinen Durchmessern — Prüfverfahren für die Dichtigkeit unter Innendruck mittels Wasser und unter Axialbeanspruchung ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ This European Standard was approved by CEN on 1994-01-10 CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom CEN European Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels © 1994 Copyright reserved to CEN members Ref No EN 715:1994 E EN 715:1994 Foreword This standard was prepared by CEN/TC 155, Plastics piping systems and ducting systems It received approval from the CEN members on 1993-09-16 This standard is based on the International Standard ISO 3458:1976 Assembled joints between fittings and polyethylene (PE) pressure pipes — Test of leakproofness under internal pressure, prepared by the International Organization for Standardization (ISO) It is a modification of ISO 3458:1976 for reasons of applicability to other plastics materials, other sizes, and/or other test conditions and alignment with texts of other standards on test methods The modifications are: — no material is mentioned; — test parameters, except those common to all plastics, are omitted; — the diameter limit is extended from 63 mm to 90 mm; — no material-dependent requirements are given; — editorial changes have been introduced The material-dependent parameters and/or performance requirements are incorporated in the system standard(s) concerned No existing European Standard is superseded by this standard This standard is one of a series of standards on test methods which support system standards for plastics piping systems and ducting systems This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by July 1994, and conflicting national standards shall be withdrawn at the latest by July 1994 The Standard was approved and in accordance with the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ © BSI 10-1999 EN 715:1994 Scope This standard specifies a method for testing the leaktightness of end-load-bearing joints, e.g cemented joints and assembled joints (excluding fusion-welded joints), between mechanical fittings and thermoplastics pipes under internal water pressure, including end thrust, of diameters up to and including 90 mm The method is applicable regardless of the design and material of the fitting used for jointing pipes Principle The leaktightness of an assembled joint is checked while the joint is subjected to an internal test pressure greater than the nominal pressure for which the pipe is rated with the pieces joined subject to the longitudinal force induced by the hydrostatic end thrust NOTE It is assumed that the following test parameters are set by the standard making reference to this standard: a) the free length, L, of the pipe(s) in the test assembly (see clause and Figure 1); b) the test temperature, T, in degrees Celsius (see clause 6); c) the test pressure, p, in bar (see 3.1 and clause 6); d) the time under pressure, t, in minutes (see clause 6); e) the maximum diameter to which this test can be applied NOTE The purpose of the original test given in ISO 3458 was to provide for a short-term (1 h) test at a pressure which exceeded the nominal pressure (PN) of the pipe under test For pipes of nominal diameter up to 63 mm, the test pressure was three times PN ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ Apparatus WARNING It is necessary to take account of the consequences of failure of the components under pressure and to contain the test piece or apparatus accordingly A typical apparatus is shown in Figure 3.1 Pressure source, connected to the test piece, e.g as shown in Figure 1, capable of maintaining the specified internal water pressure to an accuracy of ± %; 3.2 Pressure measuring device, capable of checking conformance of the test pressure with 3.1 © BSI 10-1999 Figure — Diagram of typical apparatus EN 715:1994 Test piece The test piece shall consist of an assembly of (a) pipe-section(s) and fitting(s) including at least one joint of the type to be tested The pipe-sections shall be of the size and type for which the joint(s) is (are) designed The components for the test piece shall not be assembled until at least 24 h after their production The free length, L, of each pipe in the test assembly shall be a minimum of 300 mm One end of the test piece shall be connected to the pressure source The other end(s) shall be sealed off in such a way that, when the test pressure is applied, longitudinal stresses are exerted within each pipe wall by the water pressure acting on the end fittings The assembly of the joint shall be carried out in accordance with the manufacturer’s instructions Procedure Fill the test piece with water at the specified test temperature, T, ± °C Ensure that all air is removed and excluded from the test piece for the remainder of the procedure Secure the test piece to the apparatus Wait at least 20 for equalization of temperature Ensure that the outside of the test piece is completely dry Apply pressure at a steady rate so as to achieve the specified test pressure, p, in (30 ± 5) s 1) Maintain the specified temperature, T, within ± °C, and pressure, p, within ± %, while monitoring the apparatus for any indication of a loss of pressure and the test piece for any signs of leakage for the specified time, t, or until prior failure as follows: a) terminate the test and record the observations if during the period, t, the pressure cannot be maintained and the losses occurred at the joint, or within a distance of one pipe diameter from the joint under test; b) repeat the test if the pipe(s) fail(s) at a position further than one diameter from the joint(s) under test Test report The test report shall include the following information: a) a reference to this standard and to the referring standard; b) the identity of the components [e.g fitting, pipe(s)] comprising the joint under test and their measured dimensions; c) the free length, L, in millimetres; d) the test temperature, T, in degrees Celsius; e) the test pressure, p, in bars;1) f) the time under pressure, t, in minutes; g) a report of any signs of leakage observed and of the pressure at which any such leakage occurred or, if no leakage was observed, a declaration that the joint did not leak; h) any factors which may have affected the results, such as any incidents or any operating details not specified in this standard; i) the date of test ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ bar = 105 N/m2 © BSI 10-1999 ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ blank BS EN 715:1995 BS 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