BS EN 1229-1997 Plastics piping systems - Glass-reinforced thermosetting plastics (GRP) pipes and fittings - Test methods to prove the leaktightness of the wall under short-term in.pdf

1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1229 : 1997 BS 2782

2、 : Part 12 : Methods 1223 A and B : 1997 The European Standard EN 1229 : 1996 has the status of a British Standard ICS 23.040.20; 23.040.45 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Plastics piping systems Glass-reinforced thermosetting plastics (GRP) pipes and fittings

3、Test methods to prove the leaktightness of the wall under short-term internal pressureThis 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 January 1997 BSI

4、 1997 The following BSI references relate to the work on this standard: Committee reference PRI/61 Draft for comment 93/313474 DC ISBN 0 580 26805 5 BS EN 1229 : 1997 Amendments issued since publication Amd. No. Date Text affected Committees responsible for this British Standard The preparation of t

5、his 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 Associa

6、tion Chartered Institution of Water and Environmental Management Department of the Environment (British Board of Agre ment) Department of the Environment (Building Research Establishment) Department of Transport Electricity Association Federation of Civil Engineering Contractors Health and Safety Ex

7、ecutive Institute of Building Control Institute of Materials Institution of Civil Engineers Institution of Gas Engineers National Association of Plumbing, Heating and Mechanical Services Contractors Pipeline Industries Guild Plastics Land Drainage Manufacturers Association Society of British Gas Ind

8、ustries 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: Association of Consulting Engineers Engineering Equipment and Material

9、s Users Association Institution of Mechanical Engineers RAPRA Technology Ltd.BS EN 1229 : 1997 BSI 1997 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Method 1 Scope 3 2 Definition 3 3 Method A 3 4 Method B 4ii BSI 1997 BS EN 1229 : 1997 National foreword T

10、his British Standard has been prepared by Technical Committee PRI/61 and is the English language version of EN 1229 : 1996 Plastics piping systems Glass-reinforced thermosetting plastics (GRP) pipes and fittings Test methods to prove the leaktightness of the wall under short-term internal pressure,

11、published by the European Committee for Standardization (CEN). It is incorporated into BS 2782 Methods of testing plastics : Part 12 : Reinforced plastics pipes, fittings and valves, as Methods 1223 A and B : 1997, for association with related test methods for plastics materials and plastics piping

12、components, where Method 1223A corresponds to Method A of EN 1229 (using internal water pressure) and Method 1223B corresponds to Method B of EN 1229 (using internal air pressure). This standard has been prepared for reference by other standards under preparation by CEN for specification of reinforc

13、ed plastics piping systems and components. It has been implemented to enable experience of the methods 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 exi

14、sting 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. No existing British Standard is superseded by this Method. This docu

15、ment comprises a front cover, an inside front cover, pages i and ii, pages 1 to 4 and a back cover. Warning note. This British Standard, which is identical with EN 1229 : 1996, does not necessarily detail all the precautions necessary to meet the requirements of the Health and Safety at Work etc. Ac

16、t 1974. Attention should be paid to any appropriate safety precautions and the method should be operated only by trained personnel. Compliance with a British Standard does not of itself confer immunity from legal obligations.CEN European Committee for Standardization Comite Europe en de Normalisatio

17、n Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1996 All rights of reproduction and communication in any form and by any means reserved to CEN and its members. Ref. No. EN 1229 : 1996 E EUROPEAN STANDARD EN 1229 NORME EUROPE ENNE EUROPA ISCHE NORM June 1

18、996 ICS 23.040.20; 23.040.45 Descriptors: Pipelines, plastic tubes, pipe fittings, reinforced plastics, glass-reinforced plastics, thermosetting resins, partitions, leak tests, pressure tests, hydraulic tests, pneumatic tests, leaktightness English version Plastics piping systems Glass-reinforced th

19、ermosetting plastics (GRP) pipes and fittings Test methods to prove the leaktightness of the wall under short-term internal pressure Syste mes de canalisations en plastique Tubes et raccords en plastique thermodurcissable renforce de verre (PRV) Me thode dessai pour e tablir le tanche ite de la paro

20、i sous une pression interne a court terme Kunststoff-Rohrleitungssysteme Rohre und Formstu cke aus glasfaserversta rkten duroplastischen Kunststoffen (GFK) Pru fverfahren zur Feststellung der Dichtigkeit der Wand unter Kurzzeit-Innendruck This European Standard was approved by CEN on 1996-01-04. CEN

21、 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 appl

22、ication 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

23、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.Page 2 EN 1229 : 1996 BSI 1997 For

24、eword This European Standard has been prepared by Technical Committee CEN/TC 155, Plastics piping systems and ducting systems, the secretariat of which is held by NNI. This standard is based on the draft International Standard ISO/DIS 7511 Pipes and fittings of glass reinforced thermosetting plastic

25、s (GRP) Determination of leaktightness Test method, prepared by the International Organization for Standardization (ISO). It is a modification of ISO/DIS 7511 for reasons of applicability to other test conditions and alignment with texts of other standards on test methods. The modifications are: spe

26、cifications for detection of water leakage are deleted; test parameters (pressure, time, temperature) are not specified; material-dependent or performance requirements are not given; editorial changes have been introduced. The material-dependent test parameters and/or performance requirements are in

27、corporated in the referring 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 b

28、y endorsement, at the latest by December 1996, and conflicting national standards shall be withdrawn at the latest by December 1996. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austr

29、ia, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.Page 3 EN 1229 : 1996 BSI 1997 1 Scope This standard specifies two test methods, designated method A and method B, for rapid t

30、esting of the leaktightness of glass-reinforced thermosetting plastics (GRP) pipes and fittings under short-term internal pressure. Method A is a hydraulic test applicable to a pipe under uniaxial stress. Method B is a pneumatic test applicable to pipes and fittings. For pipes it is intended to be c

31、omplementary to method A, not an alternative test. NOTE. Test methods for the leaktightness of joints or for the pipes resistance to long-term hydrostatic pressure are covered by other standards. 2 Definition For the purposes of this standard, the following definition applies: leakage The transmissi

32、on of water or air through the wall of the test piece. 3 Method A 3.1 Principle A test piece in air is subjected to an internal water pressure. The test piece is monitored for evidence of leakage through the wall of the test piece, e.g. signs of weeping or transfer of an indicator, within a specifie

33、d time. NOTE. It is assumed that the following test parameters are set by the standard making reference to this standard: a) the test pressure and time taken to achieve it (see 3.2.1 and 3.4.2); b) the number of test pieces to be used (see 3.3); c) the period for which pressure is applied (see 3.4.3

34、). 3.2 Apparatus 3.2.1 Pressurizing system, capable of maintaining for the duration of the test a specified hydraulic pressure measured at the top of the test piece to an accuracy within22 % and +5 %. The water used to pressurize the test piece may contain an indicator, such as a dye, to assist dete

35、ction of any transfer through the wall of the test piece. 3.2.2 Pressure measuring device, of sufficient accuracy to enable conformity to 3.2.1. 3.2.3 End-sealing devices, such as end caps, internal stoppers or inflatable bags depending on the diameter of the test piece. Means shall be provided to p

36、revent movement of the sealing device under pressure. Such devices shall not transmit end thrust to the test piece. 3.2.4 Test piece support, if necessary, to minimize deformation of the test piece due to its mass and its contents. This support shall not constrain the test piece circumferentially or

37、 longitudinally. 3.3 Test pieces 3.3.1 The test piece(s) shall comprise a pipe or a piece taken from a pipe, as specified in the referring standard. 3.3.2 The number of test pieces shall be as specified in the referring standard. 3.4 Procedure WARNING: Attention is drawn to dangers associated with p

38、ressure and the need to apply all necessary precautions to prevent injury to the personnel concerned. 3.4.1 Attach the end-sealing devices to the test piece and fill the test piece with water, expelling all air. Attach the test piece to the pressurizing system, being sure to avoid entrapment of air.

39、 3.4.2 Increase the hydrostatic pressure continuously, so that the specified test pressure is reached in the time specified in the referring standard. 3.4.3 Maintain the test pressure for the time specified in the referring standard or until leakage is observed, whichever occurs first. Record any ev

40、idence of leakage through the wall of the test piece (see 3.1 and 3.2.1) and the period after which it was observed. 3.5 Test report The test report shall include the following information: a) a reference to this standard and the referring standard; b) the full identification of the pipe tested; c)

41、the number of test pieces; d) the method of test used, i.e. method A; e) the test pressure, in bars; f) the duration of the test or time to failure, in minutes; g) the occurrence or absence of leakage; h) any factors which may have affected the results, such as any incidents or any operating details

42、 not specified in this standard; i) the date of test.Page 4 EN 1229 : 1996 BSI 1997 4 Method B 4.1 Principle A test piece in either air or water is subjected to an internal air pressure. The test piece is monitored for evidence of leakage within a specified time. NOTE. It is assumed that the followi

43、ng test parameters are set by the standard making reference to this standard: a) the test pressure and time taken to achieve it (see 4.2.1 and 4.4.2); b) the number of test pieces to be used (see 4.3); c) the period for which pressure is applied (see 4.4.3). 4.2 Apparatus 4.2.1 Pressurizing system,

44、capable of applying and maintaining to an accuracy of within 2 % the internal air pressure specified in the referring standard and fitted with an automatic pressure-limiting device. 4.2.2 Pressure measuring device, of sufficient accuracy to enable conformity to 4.2.1. 4.2.3 End-sealing devices, such

45、 as end caps, internal stoppers or inflatable bags depending on the diameter of the test piece. Means shall be provided to prevent movement of the sealing device under pressure. Such devices shall not transmit end thrust to the test piece. 4.3 Test pieces 4.3.1 The test pieces shall comprise either

46、of the following as specified in the referring standard: a) a pipe; b) a piece taken from a pipe; c) a fitting. 4.3.2 The number of test pieces shall be as specified in the referring standard. 4.4 Procedure WARNING: Attention is drawn to dangers associated with pneumatic pressure and the need to app

47、ly all necessary precautions to prevent injury to the personnel concerned. For reasons of safety it is recommended that the test pressure does not exceed 1 bar unless otherwise specified by the referring standard. 4.4.1 Assemble the end-sealing devices (see 4.2.3)t o the test piece ensuring that no

48、end thrust is transmitted. Connect the test piece to the pressurizing system through one of the end-sealing devices. Either paint the outer surface of the test piece with a solution of soap or a similar agent, if the test is performed in air, or immerse the test piece completely in water. 4.4.2 Pres

49、surize the test piece to the specified test pressure (see 4.1). 4.4.3 Maintain the test pressure for the time specified (see 4.1) or until leakage is observed, whichever occurs first. Inspect for and record any bubbling caused by air escaping through the wall of the test piece. 4.5 Test report The test report shall include the following information: a) a reference to this standard and the referring standard; b) the full identification of the pipe or fitting tested; c) the number of test pieces; d) the metho