1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 17467-1:2012Plastics piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems jointed by solvent cementPart 1: GeneralBS ISO 17467-1:20
2、12 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 17467-1:2012. 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 obtain
3、ed 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 75745 7 ICS 23.040.20; 23.040.45 C
4、ompliance 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 17467-1:2012 ISO 2012Plasti
5、cs piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems jointed by solvent cement Part 1: GeneralSystmes de canalisations en matires plastiques pour la distribution de combustibles gazeux Systmes de canalisations en polyamide non plastifi (PA-U) avec assemblag
6、e par collage Partie 1: GnralitsINTERNATIONAL STANDARDISO17467-1First edition2012-10-15Reference numberISO 17467-1:2012(E)BS ISO 17467-1:2012ISO 17467-1:2012(E)ii ISO 2012 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2012All rights reserved. Unless otherwise specified, no part of this publica
7、tion 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 20
8、Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 17467-1:2012ISO 17467-1:2012(E) ISO 2012 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 23.1 Geometrical definiti
9、ons . 23.2 Definitions of materials . 33.3 Definitions related to material characteristics 43.4 Definitions related to service conditions . 54 Symbols and abbreviated terms . 54.1 Symbols . 54.2 Abbreviations . 55 Material 65.1 Material of the components . 65.2 Compound . 65.3 Classification and des
10、ignation . 95.4 Maximum operating pressure MOP . 10Annex A (normative) Assessment of the degree of pigment or carbon black dispersion in unplasticized polyamide compounds 11Annex B (normative) Chemical resistance 15Annex C (informative) Design guidance .18Annex D (normative) Hoop stress at burst21Bi
11、bliography .23BS ISO 17467-1:2012ISO 17467-1:2012(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 through ISO technical committees. Eac
12、h 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 collaborates closely with the Internation
13、al 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 Standards. Draft International Standards
14、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 document may be the subject of p
15、atent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 17467-1 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 for the supply of gaseous fuels.Th
16、is first edition of ISO 17467-1 cancels and replaces the first edition of ISO 15439-1:2007, 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 polyamide (PA-U) piping systems join
17、ted by solvent cement : Part 1: General Part 2: Pipes Part 3: Fittingsiv ISO 2012 All rights reservedBS ISO 17467-1:2012ISO 17467-1:2012(E)IntroductionThin wall thickness unplasticized polyamide (PA-U) pipes and solvent cement joints are used typically for low pressures, while thicker wall thickness
18、 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 or mechanical joints and vice vers
19、a). 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 series of International Standards,
20、 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 from the field, it might be reasona
21、ble 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.NOTE A list of standards related to poly
22、amide pipes and fittings for the supply of gas is given in the Bibliography. See References 1 to 8. ISO 2012 All rights reserved vBS ISO 17467-1:2012BS ISO 17467-1:2012Plastics piping systems for the supply of gaseous fuels Unplasticized polyamide (PA-U) piping systems jointed by solvent cement Part
23、 1: General1 ScopeThis part of ISO 17467 specifies the general properties of unplasticized polyamide (PA-U) compounds for the manufacturing of pipes, fittings and valves made from such compounds, intended to be buried and used for the supply of gaseous fuels for maximum operating pressure up to and
24、including 4 bar.It also specifies the test parameters for the test methods to which it refers.This part of ISO 17467 specifies a calculation and design scheme on which the maximum operating pressure (MOP) of piping systems is based.2 Normative referencesThe following referenced documents are indispe
25、nsable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 179-1, Plastics Determination of Charpy impact properties Part 1: Non-instrumented impact te
26、stISO 291, Plastics Standard atmospheres for conditioning and testingISO 307, Plastics Polyamides Determination of viscosity numberISO 472, Plastics VocabularyISO 527-1, Plastics Determination of tensile properties Part 1: General principlesISO 527-2, Plastics Determination of tensile properties Par
27、t 2: Test conditions for moulding and extrusion plasticsISO 1043-1, Plastics Symbols and abbreviated terms Part 1: Basic polymers and their special characteristicsISO 1167-1, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids Determination of the resistance to internal pressu
28、re Part 1: General methodISO 1167-2, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids Determination of the resistance to internal pressure Part 2: Preparation of pipe test piecesISO 1167-4, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids Determina
29、tion of the resistance to internal pressure Part 4: Preparation of assembliesISO 1183-1, Plastics Methods for determining the density of non-cellular plastics Part 1: Immersion method, liquid pyknometer method and titration methodISO 1183-2, Plastics Methods for determining the density of non-cellul
30、ar plastics Part 2: Density gradient column methodINTERNATIONAL STANDARD ISO 17467-1:2012(E) ISO 2012 All rights reserved 1BS ISO 17467-1:2012ISO 17467-1:2012(E)ISO 1874-1, Plastics Polyamide (PA) moulding and extrusion materials Part 1: Designation system and basis for specificationISO 1874-2, Plas
31、tics Polyamide (PA) moulding and extrusion materials Part 2: Preparation of test specimens and determination of propertiesISO 2505, Thermoplastics pipes Longitudinal reversion Test method and parametersISO 6259-1, Thermoplastics pipes Determination of tensile properties Part 1: General test methodIS
32、O 6259-3, Thermoplastics pipes Determination of tensile properties Part 3: Polyolefin pipesISO 6964, Polyolefin pipes and fittings Determination of carbon black content by calcination and pyrolysis Test method and basic specificationISO 9080, Plastics piping and ducting systems Determination of the
33、long-term hydrostatic strength of thermoplastics materials in pipe form by extrapolationISO 12162:2009, Thermoplastics materials for pipes and fittings for pressure applications Classification, designation and design coefficientISO 13477, Thermoplastics pipes for the conveyance of fluids Determinati
34、on of resistance to rapid crack propagation (RCP) Small-scale steady-state test (S4 test)ISO 13478, Thermoplastics pipes for the conveyance of fluids Determination of resistance to rapid crack propagation (RCP) Full-scale test (FST)ISO 13480, Polyethylene pipes Resistance to slow crack growth Cone t
35、est methodISO 15512, Plastics Determination of water contentISO 16871, Plastics piping and ducting systems Plastics pipes and fittings Method for exposure to direct (natural) weathering3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 472, ISO 1043-1, I
36、SO 1874-1 and the following apply.3.1 Geometrical definitionsNOTE The symbols deand e correspond to deyand eygiven in other International Standards such as ISO 11922-19.3.1.1nominal outside diameterdnspecified outside diameter of a component, identical to the minimum mean outside diameter, dem,min,
37、in millimetresNOTE The nominal inside diameter of a socket is equal to the nominal outside diameter of the corresponding pipe.3.1.2outside diameter at any pointdeoutside diameter measured through the cross-section at any point on a pipe, or the spigot end of a fitting, rounded up to the nearest 0,1
38、mm2 ISO 2012 All rights reservedBS ISO 17467-1:2012ISO 17467-1:2012(E)3.1.3mean outside diameterdemmeasured length of the outer circumference of a pipe, or the spigot end of a fitting, divided by ( 3,142), rounded up to the nearest 0,1 mm3.1.4minimum mean outside diameterdem,minminimum value for the
39、 mean outside diameter as specified for a given nominal size3.1.5maximum mean outside diameterdem,maxmaximum value for the mean outside diameter as specified for a given nominal size3.1.6out-of-roundnessdifference between the measured maximum outside diameter and the measured minimum outside diamete
40、r in the same cross-sectional plane of a pipe, or the spigot end of a fitting, or the difference between the measured maximum inside diameter and the measured minimum inside diameter in the same cross-sectional plane of a socket3.1.7nominal wall thicknessenwall thickness, in millimetres, correspondi
41、ng to the minimum wall thickness, emin3.1.8wall thickness at any pointemeasured wall thickness at any point around the circumference of a component, rounded up to the nearest 0,05 mm3.1.9minimum wall thickness at any pointeminminimum value for the wall thickness at any point around the circumference
42、 of a component, as specified3.1.10standard dimension ratioSDRratio of the nominal outside diameter, dn, of a pipe to its nominal wall thickness, en3.2 Definitions of materials3.2.1compoundhomogenous mixture of base polymer (PA-U) and additives, i.e. anti-oxidants, pigments, UV-stabilizers and other
43、s, at a dosage level necessary for the processing and use of components conforming to the requirements of this part of ISO 174673.2.2virgin materialmaterial in a form such as granules or powder, which has not been previously processed other than for compounding and to which no rework or recyclable m
44、aterials have been added ISO 2012 All rights reserved 3BS ISO 17467-1:2012ISO 17467-1:2012(E)3.2.3own reprocessable materialmaterial prepared from rejected unused pipes, fittings and valves, including trimmings from the production of pipes, fittings and valves, which will be reprocessed in a manufac
45、turers plant after having been previously processed by the same manufacturer by a process such as moulding or extrusion and for which the complete formulation or compound is known3.2.4external reprocessable materialmaterial comprising either one of the following forms:a) material from rejected unuse
46、d pipes, fittings or valves or trimmings therefrom, which will be reprocessed and which were originally processed by another manufacturer;b) material from the production of unused PA-U products other than pipes, fittings and valves, regardless of where they are manufactured3.2.5recyclable materialma
47、terial comprising either one of the following forms:a) material from used pipes, fittings or valves which have been cleaned and crushed or ground;b) material from used PA-U products other than pipes, fittings or valves which have been cleaned and crushed or ground3.3 Definitions related to material
48、characteristics3.3.1lower confidence limit of the predicted hydrostatic strengthLPLquantity, with the dimensions of stress, which represents the 97,5 % lower confidence limit of the predicted hydrostatic strength at a temperature and time tNOTE 1 The quantity is expressed in megapascals (MPa).NOTE 2
49、 Temperature, , is expressed in degrees Celsius and time, t, is expressed in years.3.3.2minimum required strengthMRSvalue of LPLat 20 C and 50 years, rounded down to the next smaller value of the R10 series or the R20 seriesNOTE The R10 series conforms to ISO 31and the R20 series conforms to ISO 4972.3.3.3categorized required strength at temperature and time tCRS,tvalue of LPLat temperature and time t, rounded down to the nex
