1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 17467-2:2012Plastics piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems jointed by solvent cementPart 2: PipesBS ISO 17467-2:2012
2、 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 17467-2:2012. The UK participation in its preparation was entrusted to TechnicalCommittee PRI/88/2, Plastics piping for pressure applications. A list of organizations represented on this committee can be obtained
3、 on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012. Published by BSI Standards Limited 2012.ISBN 978 0 580 75746 4 ICS 23.040.20; 23.040.45 Com
4、pliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2012.Amendments issued since publicationDate T e x t a f f e c t e dBS ISO 17467-2:2012 ISO 2012Plastics
5、 piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems jointed by solvent cement Part 2: PipesSystmes de canalisations en matires plastiques pour la distribution de combustibles gazeux Systmes de canalisations en polyamide non plastifi (PA-U) avec assemblage pa
6、r collage Partie 2: TuyauteriesINTERNATIONAL STANDARDISO17467-2First edition2012-10-15Reference numberISO 17467-2:2012(E)BS ISO 17467-2:2012ISO 17467-2:2012(E)ii ISO 2012 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2012All rights reserved. Unless otherwise specified, no part of this publicat
7、ion may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20T
8、el. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 17467-2:2012ISO 17467-2:2012(E) ISO 2012 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions, symbols and abbreviated ter
9、ms 24 Material 25 Appearance 26 Geometrical characteristics 26.1 Measurement of dimensions . 26.2 Mean outside diameters, out-of-roundness and their tolerances . 26.3 Wall thicknesses and tolerances 37 Mechanical characteristics 57.1 Conditioning 57.2 Requirements . 58 Physical characteristics . 88.
10、1 Conditioning 88.2 Requirements . 89 Marking 9BS ISO 17467-2:2012ISO 17467-2:2012(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out thro
11、ugh 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, also take part in the work. ISO collabor
12、ates 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 committees is to prepare International Standard
13、s. 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 possibility that some of the elements of this
14、 document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 17467-2 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 4, Plastics pipes and fittings f
15、or the supply of gaseous fuels.This first edition of ISO 17467-2 cancels and replaces the first edition of ISO 15439-2:2007, which has been technically revised.ISO 17467 consists of the following parts, under the general title Plastics piping systems for the supply of gaseous fuels Unplasticized pol
16、yamide (PA-U) piping systems jointed by solvent cement : Part 1: General Part 2: Pipes Part 3: Fittingsiv ISO 2012 All rights reservedBS ISO 17467-2:2012ISO 17467-2:2012(E)IntroductionThin wall thickness unplasticized polyamide (PA-U) pipes and solvent cement joints are used typically for low pressu
17、res, while thicker wall thickness pipes and butt fusion, electrofusion or mechanical joints are typically used for high pressures.For technical and safety reasons, it is not possible to mix the components of the two types of piping system (thin wall thickness pipes cannot be jointed by butt fusion o
18、r mechanical joints and vice versa). In particular, solvent cement joints must not be used for jointing for high pressure piping systems.So for the time being, the standardisation programme dealing with unplasticized polyamide (PA-U) piping systems for the supply of gaseous fuels is split into two s
19、eries of International Standards, with one series (ISO 17467) covering piping systems the components of which are connected by solvent cement jointing and the other (ISO 16486) the components of which are connected by fusion jointing and/or mechanical jointing. When more experience will be gained fr
20、om the field, it might be reasonable to merge ISO 17467 series and ISO 16486 series in one single series applicable to PA-U piping systems.A similar series (ISO 17135) of International Standards for fusion and mechanically jointed plasticized polyamide (PA-P) piping systems is in preparation. ISO 20
21、12 All rights reserved vBS ISO 17467-2:2012BS ISO 17467-2:2012Plastics piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems jointed by solvent cement Part 2: Pipes1 ScopeThis part of ISO 17467 specifies the physical and mechanical properties of pipes made from
22、 unplasticized polyamide (PA-U) in accordance with Part 1, intended to be buried and used for the supply of gaseous fuels for maximum operating pressure up to and including 4 bar.It also specifies the test parameters for the test methods to which it refers.In addition, this part of ISO 17467 lays do
23、wn dimensional characteristics and requirements for the marking of pipes.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced
24、 document (including any amendments) applies.ISO 161-1, Thermoplastics pipes for the conveyance of fluids Nominal outside diameters and nominal pressures Part 1: Metric seriesISO 291, Plastics Standard atmospheres for conditioning and testingISO 307, Plastics Polyamides Determination of viscosity nu
25、mberISO 1167-1, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids Determination of the resistance to internal pressure Part 1: General methodISO 1167-2, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids Determination of the resistance to internal pre
26、ssure Part 2: Preparation of pipe test piecesISO 2505, Thermoplastics pipes Longitudinal reversion Test method and parametersISO 3126, Plastics piping systems Plastics components Determination of dimensionsISO 3127, Thermoplastics pipes Determination of resistance to external blows Round-the-clock m
27、ethodISO 4065, Thermoplastics pipes Universal wall thickness tableISO 6259-1, Thermoplastics pipes Determination of tensile properties Part 1: General test methodISO 6259-3, Thermoplastics pipes Determination of tensile properties Part 3: Polyolefin pipesISO 11922-1:1997, Thermoplastics pipes for th
28、e conveyance of fluids Dimensions and tolerances Part 1: Metric seriesISO 13477, Thermoplastics pipes for the conveyance of fluids Determination of resistance to rapid crack propagation (RCP) Small-scale steady-state test (S4 test)INTERNATIONAL STANDARD ISO 17467-2:2012(E) ISO 2012 All rights reserv
29、ed 1BS ISO 17467-2:2012ISO 17467-2:2012(E)ISO 13479, Polyolefin pipes for the conveyance of fluids Determination of resistance to crack propagation Test method for slow crack growth on notched pipesISO 13480, Polyethylene pipes Resistance to slow crack growth Cone test methodISO 17467-1:2012, Plasti
30、cs piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems jointed by solvent cement Part 1: General3 Terms and definitions, symbols and abbreviated termsFor the purposes of this document, the terms and definitions, symbols and abbreviated terms given in ISO 1746
31、7-1 apply.4 MaterialThe pipes shall be made from virgin PA-U material. Own and external reprocessable materials and recyclable material shall not be used.The compound from which the pipes are made shall conform to ISO 17467-1.5 AppearanceWhen viewed without magnification, the internal and external s
32、urfaces of pipes shall be smooth, clean and free from scoring, cavities and other surface defects which may affect pipe performance. The pipe ends shall be cut cleanly and square to the axis of the pipe.6 Geometrical characteristics6.1 Measurement of dimensionsDimensions shall be measured in accorda
33、nce with ISO 3126 at (23 2) C, after being conditioned for at least 4 h. The measurement shall not be made less than 24 h after manufacture.6.2 Mean outside diameters, out-of-roundness and their tolerancesThe mean outside diameters of the pipe demand their tolerances shall conform to Table 1.For max
34、imum mean outside diameter, grade B tolerances, conforming to ISO 11922-1, shall apply.The maximum absolute out-of-roundness is not applicable for this part of ISO 17467 because the socket re-rounds the pipe spigot when solvent cement jointed.Table 1 Mean outside diametersDimensions in millimetresNo
35、minal outside diam-eterMean outside diameterdndem,mindem,max12 12,0 12,216 16,0 16,318 18,0 18,220 20,0 20,323 23,0 23,22 ISO 2012 All rights reservedBS ISO 17467-2:2012ISO 17467-2:2012(E)Nominal outside diam-eterMean outside diameter25 25,0 25,332 32,0 32,340 40,0 40,450 50,0 50,463 63,0 63,475 75,
36、0 75,590 90,0 90,6110 110,0 110,7125 125,0 125,8140 140,0 140,9160 160,0 161,0180 180,0 181,1200 200,0 201,2225 225,0 226,4250 250,0 251,56.3 Wall thicknesses and tolerances6.3.1 Minimum wall thicknessThe minimum wall thickness eminshall conform to Table 2. Small diameter pipes are characterized by
37、wall thickness. Large diameter pipes are characterized by SDR.The use of any SDR derived from the pipe series S given in accordance with ISO 4065 and ISO 161-1 is permitted.NOTE To minimize the possibility of damage to small diameter gas pipes by external influences, the use of pipes with a wall thi
38、ckness not less than 1,0 mm, even if this is a higher value than according to the minimal SDR value, can be considered.Table 2 Minimum wall thicknessDimensions in millimetresNominal outside diam-eterMinimum wall thicknessemindnSDR 26 SDR 3312 1,0 1,016 1,0 1,018 1,0 1,020 1,0 1,023 1,0 1,025 1,0 1,0
39、32 1,3 1,0Table 1 (continued) ISO 2012 All rights reserved 3BS ISO 17467-2:2012ISO 17467-2:2012(E)Nominal outside diam-eterMinimum wall thicknessemin40 1,6 1,350 1,9 1,663 2,5 2,075 2,9 2,390 3,5 2,8110 4,3 3,4125 4,9 3,8140 5,4 4,2160 6,2 4,9180 7,0 5,5200 7,7 6,1225 8,7 6,9250 9,7 7,66.3.2 Toleran
40、ces on the wall thickness at any pointThe tolerances on the wall thickness at any point shall conform to Grade V of ISO 11922-1:1997. The maximum permissible variation between the nominal wall thickness enand the wall thickness at any point e shall conform to Table 3.Table 3 Tolerances on wall thick
41、ness at any pointDimensions in millimetresMinimum wall thickness emin Permitted positive deviation 1,0 1,5 0,21,5 2,5 0,32,5 3,5 0,43,5 4,4 0,54,4 5,0 0,65,0 6,4 0,76,4 7,5 0,87,5 8,0 0,98,0 9,0 1,09,0 10,0 1,110,0 11,0 1,2Table 2 (continued)4 ISO 2012 All rights reservedBS ISO 17467-2:2012ISO 17467
42、-2:2012(E)7 Mechanical characteristics7.1 ConditioningUnless otherwise specified by the applicable test method, the test pieces shall be conditioned for at least 16 h at 23 C and 50 % relative humidity in accordance with ISO 291 before testing in accordance with Table 4.7.2 RequirementsWhen tested i
43、n accordance with the test methods as specified in Table 4 using the indicated parameters, the pipe shall have mechanical characteristics conforming to the requirements given in Table 4.Table 4 Mechanical characteristicsCharacteristic Requirements Test parameters Test methodHydrostatic strength (20
44、C, 1 000 h)No failure during the test period of any test pieceEnd capsOrientationConditioning timeType of testCircumferential (hoop) stress:PA-U 11 160 and PA-U 12 160 aPA-U 11 180 and PA-U 12 180 aTest periodTest temperatureType a)Free6 hWater-in-water19,0 MPa20,0 MPa1 000 h20 CISO 1167-1 ISO 1167-
45、2aFor material classification and designation, see ISO 17467-1:2012, 5.3.bPc,s4,REFis the value of the critical pressure determined in the S4 test on the pipe according to ISO 17467-1:2012, Table 2, from the batch whose full-scale critical pressure pcwas determined in ISO 17467-1.cFor pipes of dn5 m
46、m (Notch test)No failure during the test period of any test pieceTest temperatureTest pressure (see NOTE):- SDRPA-U 11 160 and PA-U 12 160PA-U 11 180 and PA-U 12 180Test periodType of test80 C ISO 13479267,2 bar8,0 bar335,6 bar6,2 bar500 h Water-in-waterResistance to rapid crack propagation (critica
47、l pressure, pc,S4) (S4 test)Pc,S4 0,9Pc,S4,REFb,cTest temperature 0 C ISO 13477aFor material classification and designation, see ISO 17467-1:2012, 5.3.bPc,s4,REFis the value of the critical pressure determined in the S4 test on the pipe according to ISO 17467-1:2012, Table 2, from the batch whose fu
48、ll-scale critical pressure pcwas determined in ISO 17467-1.cFor pipes of dn 90 mm, the value of critical pressure, Pc,S4,REF, determined on a pipe of dn90 mm or dn110 mm according to ISO 17467-1:2012, Table 2, shall be taken as the reference value.NOTE These pressure levels are calculated to give no
49、minal pipe hydrostatic levels of either 9 MPa in PA-U 11 160 and PA-U 12 160 materials or 10 MPa in PA-U 11 180 and PA-U 12 180 materials by using the following equation:p =201SDRwhere is the hydrostatic stress, in megapascals;SDR is the standard dimension ratio.Table 4 (continued) ISO 2012 All rights reserved 7BS ISO 17467-2:2012ISO 17467-2:2012(E)Table 5 Striker mass and drop heightNominal outside diameterSDR 26 SDR 33Mass of striker aDrop height bMass
