1、BS ISO13255:2010ICS 23.040.20; 91.140.80NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDThermoplastics pipingsystems for soil andwaste dischargeinside buildings Test method forairtightness of jointsThis British Standardwas published under theauthority of the Sta
2、ndardsPolicy and StrategyCommittee on 30 June2010 BSI 2010ISBN 978 0 580 66736 7Amendments/corrigenda issued since publicationDate CommentsBS ISO 13255:2010National forewordThis British Standard is the UK implementation of ISO 13255:2010.The UK participation in its preparation was entrusted to Techn
3、icalCommittee PRI/88/1, 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 applica
4、tion.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS ISO 13255:2010Reference numberISO 13255:2010(E)ISO 2010INTERNATIONAL STANDARD ISO13255First edition2010-05-01Thermoplastics piping systems for soil and waste discharge inside buildings Test method for airtightnes
5、s of joints Systmes de canalisations thermoplastiques pour vacuation des eaux-vannes et des eaux uses lintrieur des btiments Mthode dessai de ltanchit des assemblages lair BS ISO 13255:2010ISO 13255:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licens
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10、211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2010 All rights reservedBS ISO 13255:2010ISO 13255:2010(E) ISO 2010 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwi
11、de federation of national standards bodies (ISO member bodies). The work of preparing International Standards 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 tha
12、t committee. International organizations, governmental and non-governmental, in liaison with ISO, also 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 a
13、ccordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees 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 re
14、quires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility 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 13255 was prepared by Techn
15、ical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 1, Plastics pipes and fittings for soil, waste and drainage (including land drainage). BS ISO 13255:2010BS ISO 13255:2010INTERNATIONAL STANDARD ISO 13255:2010(E) ISO 2010 All rights reserved 1
16、Thermoplastics piping systems for soil and waste discharge inside buildings Test method for airtightness of joints 1 Scope This International Standard specifies a method for testing the airtightness of joints of thermoplastics piping systems for soil and waste discharge inside buildings. 2 Principle
17、 A test assembly of pipes and/or fittings is subjected to a given internal air pressure for a given time period during which the leaktightness of the joint is verified by inspection. NOTE It is assumed that the following test parameters are set by the referring standard: a) the sampling procedure (s
18、ee 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 not exert longitudinal forces on the j
19、oint 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 5.8). 3.2 Air pressure source, connected via a shut-off valve to one end of at least one end-sealing
20、 device, and capable of maintaining the required pressure within 10 % (see Clause 5). 3.3 Pressure-measuring device, capable of checking conformity to the required test pressure (see 3.2 and Clause 5). 3.4 Water supply and outlet devices, each connected via a shut-off valve to at least one end-seali
21、ng device to admit water to the appropriate level within the test piece (see Figure 1). BS ISO 13255:2010ISO 13255:2010(E) 2 ISO 2010 All rights reserved4 Test pieces 4.1 Preparation of test pieces The test piece shall comprise an assembly of (a) pipe section(s) (with or without sockets) and/or fitt
22、ing(s), one part of the test piece being a pipe or a fitting with a spigot mounted in two clamped blocks (see Figure 1). Dimensions in millimetres Key 1 fixed points 2 sealing plug with water outlet and end restraint (see 3.1) 3 loose bushes enabling all sizes of pipes to be accommodated on the same
23、 test fixture 4 fixed component 5 sealing plug with water inlet, air outlet and end restraint aWater inlet. bAir outlet. cLevel of water for test (half of pipe internal bore). dWater outlet. eDirection of movement for angular deflection, if applicable (see 5.8). Figure 1 Typical arrangement One end
24、of the pipe shall be sealed with a plug that has a combined water and air inlet. A fitting or a joint shall be assembled with the open end of the fixed component. The fitting or joint shall then be sealed at all open ends with plugs, one of which has a centrally mounted water outlet and shut-off val
25、ve (see Figure 2). 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 tolerance(s) and o
26、btained 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 13255:2010ISO 13255:2010(E) ISO 2010 All
27、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 horizontally in the apparatus (see Figure 1). 5.3 When testing in accordance wi
28、th 5.4 to 5.8, monitor the joint for and record any leaks which are evident by the formation of bubbles of soap solution (see 5.4) and the escape of water. 5.4 Apply a solution of soapy water or equivalent leak-detecting agent around the annular space between the spigot and the mouth of the socket.
29、Afterwards, remove any excess, dripping liquid with a dry cloth. 5.5 Open the water outlet valve and close the air inlet valve. 5.6 Open the water inlet valve. When the assembly is half-full, as indicated by water flow from the outlet, close first the water inlet valve and then the water outlet valv
30、e. 5.7 Open the air inlet valve and increase the internal air pressure to (0,1 0,01) bar1)using air at the temperature specified in 5.1. 5.8 Maintain this pressure for 5 min, then deflect the fitting or joint manually on the spigot end of the clamped component, until their consecutive axes reach the
31、 maximum angular deflection, as stated by the manufacturer for the specific joint under test. Apply this angular deflection at 0, 90, 180 and 270 (see Figure 2), maintaining it for 1 min in each of these directions. 5.9 Depressurize, drain and dismantle the test piece. Inspect for and record any cha
32、nges in the appearance of the components tested. Key 1 blocks split and held together with wing-nut 2 sealing plug aDirection of movement of fitting during test (end elevation). Figure 2 Directions of deflection 1) 1 bar = 0,1 MPa = 105Pa; 1 MPa = 1 N/mm2. BS ISO 13255:2010ISO 13255:2010(E) 4 ISO 20
33、10 All rights reserved6 Test report The test report shall include the following information: a) a reference to this International Standard, i.e. ISO 13255:2010, and the referring standard; b) the complete identification of the components (e.g. fittings, pipes, assemblies) comprising the joints under
34、 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 deflection applied to the joint, if applicable (see 5.8); g) a statement that the joint
35、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 testing, or immediately afterwards; i) any factor that could have affected the results
36、, such as any incident or any operating details not specified in this International Standard; j) the date of the test. BS ISO 13255:2010BS ISO 13255:2010ISO 13255:2010(E) ICS 23.040.20; 91.140.80 Prix bas sur 4 pages ISO 2010 All rights reserved BS ISO 13255:2010This page has been intentionally left
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