BS EN 803-1995 Plastics piping systems Injection-moulded thermoplastics fittings for elastic sealing ring type joints for pressure piping Test method for resistance to a short-term.pdf

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1、BRITISH STANDARD BS EN 803:1995 BS 2782-11: Method 1123J:1995 Plastics piping systems Injection-moulded thermoplastics fittings for elastic sealing ring type joints for pressure piping Test method for resistance to a short-term internal pressure without end thrust The European Standard EN 803:1994 h

2、as the status of a British Standard UDC 621.643.06-986:678-073:620.162.4BSEN 803:1995 This British Standard, having been prepared under the directionof the Sector Board forMaterials and Chemicals, waspublished under the authorityof the Standards Boardand comes into effect on 15July 1995 BSI 11-1999

3、The following BSI references relate to the work on this standard: Committee reference PRI/61 Draft for comment 92/45390 DC ISBN 0 580 24222 6 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee PRI/61, Plastics piping systems

4、 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 Agrment) Department of the Environme

5、nt (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 En

6、gineers 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 I

7、ndustries 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. Amendmen

8、ts issued since publication Amd. No. Date CommentsBSEN 803:1995 BSI 11-1999 i Contents Page Committees responsible Inside front page National foreword ii Foreword 2 1 Scope 3 2 Principle 3 3 Apparatus 3 4 Test piece 3 5 Procedure 3 6 Test report 3BSEN 803:1995 ii BSI 11-1999 National foreword This B

9、ritish Standard has been prepared under the direction of the Sector Board for Materials and Chemicals and is the English language version of EN 803:1994 Plastics piping systems Injection-moulded thermoplastics fittings for elastic sealing ring type joints for pressure piping systems Test method for

10、resistance to a short-term internal pressure without end thrust, published by the European Committee for Standardization (CEN). It is incorporated into BS 2782 Methods of testing plastics Part11Thermoplastics pipes, fittings and valves, as Method 1123J:1995, for association with related test methods

11、 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 ot

12、her 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 bee

13、n amended or revised to make reference to this method and adjust any requirements as appropriate. WARNING NOTE. This British Standard, which is identical with EN 803:1994, does not necessarily detail all the precautions necessary to meet the requirements of the Health and Safety at Work etc. Act 197

14、4. 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. Complian

15、ce 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, pagesi andii, theEN title page, pages2to4 and a back cover. This standard has been updated (see copyright date) and may have had amendm

16、ents incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 803 April 1994 UDC 621.643.06-986:678.073:620.162.4 Descriptors: Pipelines, pressure pipes, plastic tubes, pipe fittings, thermoplastic resins, joining, sea

17、ling rings, rubber, pressure tests, resistance tests English version Plastics piping systems Injection-moulded thermoplastics fittings for elastic sealing ring type joints forpressure piping Test method for resistance to a short-term internal pressure without end thrust Systmes de canalisations en p

18、lastiques Raccords thermoplastiques mouls par injection bagues dtanchit pour canalisations avec pression Mthode dessai de rsistance une pression interne de courte dure sans effet de fonds Kunstsoff-Rohrleitungssysteme Spritzguss-Formstcke aus Thermoplasten fr Steckmuffenverbindungen fr Druckrohrleit

19、ungen Prfverfahren fr die Widerstandsfhigkeit gegen Kurzzeit-Innendruck ohne Axialbeanspruchung This European Standard was approved by CEN on 1994-04-11. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the sta

20、tus 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

21、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,

22、 Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1994 Copyright

23、 reserved to CEN members Ref. No. EN 803:1994 EEN 803:1994 BSI 11-1999 2 Foreword This standard was prepared by CEN/TC 155, Plastics piping systems and ducting systems. This standard is based on the International Standard ISO 2035:1974 Unplasticized poly(vinyl chloride) (PVC) moulded fittings for el

24、astic sealing ring type joints for use under pressure Pressure-resistance test, published by the International Organization for Standardization (ISO). It is a modification of ISO 2035:1974 for reasons of applicability to other plastics materials and/or other test conditions and alignment with texts

25、of other standards on test methods. The modifications are: no material is mentioned; test parameters, except those common to all plastics, are omitted; editorial changes have been introduced. The material-dependent parameters and/or performance requirements are incorporated in the System Standard(s)

26、 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 p

27、ublication of an identical text or by endorsement, at the latest by October 1994, and conflicting national standards shall be withdrawn at the latest by October 1994. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Be

28、lgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EN 803:1994 BSI 11-1999 3 1 Scope This standard specifies a method for testing the resistance to internal hydrostatic pressure at 20 C o

29、f any injection-moulded thermoplastics fittings with elastic sealing ring type joints for thermoplastics pressure pipes having a nominal diameter, d n , less than or equal to 315mm, where the joint is not intended to withstand hydrostatic end thrust. This method is intended for testing fittings over

30、 a period of the order of 1h to 10h at a pressure which is material-dependent and typically several times the nominal pressure of the fitting. 2 Principle A specified pressure is applied for a specified period at (20 2) C to a test piece consisting of the fitting assembled with (an) appropriate pipe

31、(s) by one or more elastic sealing ring type joints and supported in a manner which compensates for end thrust. The test piece is inspected for signs of failure of the fitting. NOTEIt is assumed that the following test parameters are set by the standard making reference to this standard: a) the test

32、 pressure, p, generally expressed as a multiple, not necessarily integer, of the nominal pressure rating of the fitting; b) the period of time, t, that the test piece is subjected to pressure. 3 Apparatus 3.1 Pressurizing device, including thermostatic and/or environmental controls, capable of maint

33、aining the specified hydrostatic pressure, p (see item a) of the note to clause 2), to within 2,5%, for the specified period of time, t (seeitem b) of the note to clause 2), and of maintaining the test piece at (20 2) C. 3.2 Supporting device, to compensate for the end thrust(s) resulting from the a

34、pplication of internal pressure. 3.3 Pressure gauge, capable of checking conformity to the specified test pressure, p (see 3.1). 4 Test piece The test piece shall comprise an assembly of one or more pipe sections and fittings including at least one fitting of the type to be tested. Unless otherwise

35、specified in the referring standard, the section(s) of pipe to be connected shall have a length of three times d nwith a minimum of250 mm. They shall be capable of withstanding the test pressure, p, required by the referring standard. Assembling of the test piece shall be carried out in accordance w

36、ith the manufacturers instructions. 5 Procedure In any convenient order carry out the following steps. a) Connect the end of one of the pipe sections of the test piece to the pressurizing device (see 3.1). b) Close by appropriate means the other end(s) of the test piece. c) Fill the test piece with

37、water at(20 2) C, taking care to bleed off all internal air. Wait for at least20min after filling to ensure equalization of temperature to(20 2) C. Remove any moisture from the outside surface of the test piece. Apply hydrostatic pressure progressively in such a way that the test pressure, p, is rea

38、ched in not less than30s and not more than300s. Maintain the test piece environment at(20 2) C for the specified period, t, or until prior failure occurs. Maintain the pressure, p, for the specified period, t, checking by means of the pressure gauge that the pressure is within 2,5% and ensuring that

39、 no leakage occurs at any area of the test piece unless prior failure occurs. If any area of the assembly other than a fitting under test shows failure (e.g. failure of another joint or a pipe bursting), start the test again, if necessary using other test piece elements. Maintain the pressure until

40、the assembly has shown constant leaktightness for the period, t, or until the fitting(s) fail(s), whichever occurs first. Record the results accordingly. 6 Test report The test report shall include the following information: a) a reference to this standard and to the referring standard; b) the size,

41、 type and nominal pressure of the fitting and the material from which the fitting is made; c) the identity of the batch or production run from which the fitting was sampled; d) the type(s) of pipe(s) connected to the fitting in the test assembly and the material(s) from which the pipe(s) is (are) ma

42、de;EN 803:1994 4 BSI 11-1999 e) the test pressure, p, in bars 1) ; f) the period of time, t, in hours, the test piece was subjected to pressure; g) the test temperature, in degrees Celsius; h) whether or not the fitting and/or its joints exhibited any signs of deterioration, leakage, fracture or any

43、 other form of failure as specified by the referring standard; i) if applicable, observations of any failures causing repetition of the test; j) any factors which may have affected the results, such as any incidents or any operating details not specified in this standard; k) the date of test. 1) 1 b

44、ar = 10 5N/m 2 .blankBS EN 803:1995 BS 2782-11: Method 1123J:1995 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It

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