BS ISO 13254-2010 Thermoplastics piping systems for non-pressure applications - Test method for watertightness《非承压用途热塑性管路系统 水密性试验方法》.pdf

1、BS ISO13254:2010ICS 23.040.20; 91.140.80NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDThermoplastics pipingsystems for non-pressure applications Test method forwatertightnessThis British Standardwas published under theauthority of the StandardsPolicy and Strat

2、egyCommittee on 30 June2010 BSI 2010ISBN 978 0 580 66735 0Amendments/corrigenda issued since publicationDate CommentsBS ISO 13254:2010National forewordThis British Standard is the UK implementation of ISO 13254:2010.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/88/1

3、, Plastics piping for non-pressure applications.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a

4、 British Standard cannot confer immunityfrom legal obligations.BS ISO 13254:2010Reference numberISO 13254:2010(E)ISO 2010INTERNATIONAL STANDARD ISO13254First edition2010-05-01Thermoplastics piping systems for non-pressure applications Test method for watertightness Systmes de canalisations thermopla

5、stiques pour applications sans pression Mthode dessai de ltanchit leau BS ISO 13254:2010ISO 13254:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are

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10、blished in Switzerland ii ISO 2010 All rights reservedBS ISO 13254:2010ISO 13254:2010(E) ISO 2010 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International S

11、tandards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, als

12、o take part in the work. ISO collaborates closely with the International 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 committe

13、es is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possi

14、bility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 13254 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommit

15、tee SC 1, Plastics pipes and fittings for soil, waste and drainage (including land drainage). BS ISO 13254:2010BS ISO 13254:2010INTERNATIONAL STANDARD ISO 13254:2010(E) ISO 2010 All rights reserved 1Thermoplastics piping systems for non-pressure applications Test method for watertightness 1 Scope Th

16、is International Standard specifies a test method for watertightness of thermoplastics products fabricated from more than one piece for non-pressure applications, and joints of thermoplastics piping systems for non-pressure applications. 2 Principle A test assembly comprising either a fabricated pro

17、duct or an assembly of pipes and/or fittings is subjected to a given internal hydrostatic pressure for a given time period during which the leaktightness of the fabricated product or the joint is verified by inspection. NOTE It is assumed that the following test parameters are set by the referring s

18、tandard: a) the sampling procedure (see 4.1 and Clause 5); b) the number of test pieces (see 4.2). 3 Apparatus 3.1 End-sealing devices, having a size and using a sealing method that are appropriate to the type of joint assembly under test. The devices shall be restrained in such a manner that does n

19、ot exert longitudinal forces on the joint assembly and prevents the devices or the assembly under test from separating under pressure. The mass of the devices shall not be permitted to influence the angular deflection to be applied (see 5.2). 3.2 Hydrostatic pressure source, connected to one end of

20、at least one end-sealing device, capable of applying the required pressure gradually and evenly in accordance with 5.4, and then of keeping it constant to within21%+for the required duration of test (see Clause 5). 3.3 Bleed valve, capable of venting air when the hydrostatic pressure is applied to t

21、he test piece. 3.4 Pressure-measuring device, capable of checking conformity to the required test pressure (see 3.2 and Clause 5). BS ISO 13254:2010ISO 13254:2010(E) 2 ISO 2010 All rights reserved4 Test pieces 4.1 Preparation of test pieces The test piece shall comprise either a fabricated fitting o

22、r an assembly of (a) pipe section(s) (with or without sockets) and/or fitting(s), including at least one joint of the type under test (see Figure 1). To assist air removal, the test pieces may be inclined by up 12. Dimensions in millimetres Key 1 fixed points 2 sealing plug with water outlet and end

23、 restraint (see 3.1) 3 loose bushes enabling all sizes of pipes to be accommodated on the same test fixture 4 fixed component 5 sealing plug with water inlet, air outlet and end restraint aWater inlet. bAir outlet. cWater outlet. dDirection of movement for angular deflection, if applicable (see 5.2)

24、. Figure 1 Typical arrangement The assembly of the joint(s) shall be carried out in accordance with the manufacturers instructions. The assembly shall comprise the combination of the smallest available spigot end and the largest available socket or socket groove diameter within the applicable tolera

25、nce(s) and obtained by sampling in accordance with the referring standard. The relevant diameters of the selected spigots and sockets shall be measured and recorded. 4.2 Number of test pieces The number of test pieces shall be specified in the referring standard. BS ISO 13254:2010ISO 13254:2010(E) I

26、SO 2010 All rights reserved 35 Procedure 5.1 Carry out the following procedure at a temperature of (23 5) C using cold tap water, without permitting any condensation to form on the surface of the test piece. 5.2 Mount the test piece in the apparatus. If the joint to be tested permits angular deflect

27、ion, arrange the test assembly such that the joint(s) under test is (are) subject to its (their) maximum angular deflection, as stated by the manufacturer for the specific joint, with regard to the axes of the components thus joined. 5.3 When testing in accordance with 5.4 and 5.5, monitor the test

28、piece for, and record any evidence of, leakage. 5.4 Introduce water into the test piece, while bleeding off all air, and apply the hydrostatic pressure in the following manner: a) accelerated procedure for fabricated products: unless otherwise specified in the referring standard, apply an hydrostati

29、c pressure of 0,5 bar1)and maintain it for at least 1 min; b) for assemblies of pipes and/or fittings which are not fabricated: raise the hydrostatic pressure smoothly over a time period not greater than 15 min to 0,5 bar and maintain that pressure for at least 15 min. 5.5 Depressurize, drain and di

30、smantle the test piece. Inspect for and record any changes in the appearance of the components tested. 6 Test report The test report shall include the following information: a) a reference to this International Standard, i.e. ISO 13254:2010, and the referring standard; b) the complete identification

31、 of the components (e.g. fittings, pipes, assemblies) comprising the joints under test and their respective diameters, in millimetres (see 4.1); c) the test temperature (see 5.1), in degrees Celsius; d) the test pressure, in bar; e) the time period under pressure, in minutes; f) the angle of deflect

32、ion applied to the joint, if applicable (see 5.2); g) a statement that the joint did not leak or, if applicable, a report of the signs of leakage or rupture, their position(s) and the pressure at which they occurred; h) any change in the appearance of the components of the test piece(s) during testi

33、ng or immediately afterwards; i) any factor that could have affected the results, such as any incident or any operating details not specified in this International Standard; j) the date of the test. 1) 1 bar = 0,1 MPa = 105Pa; 1 MPa = 1 N/mm2. BS ISO 13254:2010ISO 13254:2010(E) ICS 23.040.20; 91.140

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