1、BS EN ISO12162:2009ICS 23.040.20; 23.040.45NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDThermoplasticsmaterials for pipesand fittings forpressure applications Classification,designation anddesign coefficient (ISO12162:2009)This British Standardwas published u
2、nder theauthority of the StandardsPolicy and StrategyCommittee on 28 February2010 BSI 2010ISBN 978 0 580 53812 4Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 12162:2009National forewordThis British Standard is the UK implementation of EN ISO 12162:2009.It supersedes BS EN ISO
3、12162:1996 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/88/4, Test Methods - Plastic Piping.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the nece
4、ssary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12162 November 2009 ICS 23.040.20; 23.040.45 Supersedes EN ISO 12162:1995English V
5、ersion Thermoplastics materials for pipes and fittings for pressure applications - Classification, designation and design coefficient (ISO 12162:2009) Matires thermoplastiques pour tubes et raccords pour applications avec pression - Classification, dsignation et coefficient de calcul (ISO 12162:2009
6、) Thermoplastische Werkstoffe fr Rohre und Formstcke fr Anwendungen unter Druck - Klassifizierung, Gesamtbetriebs-(berechnungs-)Koeffizient und Werkstoffkennzeichnung (ISO 12162:2009) This European Standard was approved by CEN on 10 October 2009. CEN members are bound to comply with the CEN/CENELEC
7、Internal Regulations which stipulate the conditions for giving this European Standard the status 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 CEN Management Centre or to any CEN
8、 member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN
9、members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Swed
10、en, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members.
11、Ref. No. EN ISO 12162:2009: EBS EN ISO 12162:2009EN ISO 12162:2009 (E) 3 Foreword This document (EN ISO 12162:2009) has been prepared by Technical Committee ISO/TC 138 “Plastics pipes, fittings and valves for the transport of fluids“ in collaboration with Technical Committee CEN/TC 155 “Plastics pip
12、ing systems and ducting systems” the secretariat of which is held by NEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2010, and conflicting national standards shall be withdrawn at the lat
13、est by May 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 12162:1995. According to the CEN/CENE
14、LEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxemb
15、ourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 12162:2009 has been approved by CEN as a EN ISO 12162:2009 without any modification. BS EN ISO 12162:2009ISO 12162:2009(E) ISO 2009 A
16、ll 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 Standards is normally carried out through ISO technical committees. Each member body interested in a
17、 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 International Electrotechnical Commissio
18、n (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 adopted by the technical co
19、mmittees 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 patent rights. ISO shall no
20、t be held responsible for identifying any or all such patent rights. ISO 12162 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 5, General properties of pipes, fittings and valves of plastic materials and their accessori
21、es Test methods and basic specifications. This second edition cancels and replaces the first edition (ISO 12162:1995), which has been technically revised. BS EN ISO 12162:2009ISO 12162:2009(E) iv ISO 2009 All rights reservedIntroduction The revision of this International Standard incorporates the in
22、troduction of a CRS,tvalue (categorized required strength at a temperature and time t), in addition to the MRS classification and the introduction of minimum design coefficients for additional materials. The classification in this International Standard does not qualify a material for a specific app
23、lication. For specific applications, the relevant product standards require that additional mechanical and physical properties be met. BS EN ISO 12162:2009INTERNATIONAL STANDARD ISO 12162:2009(E) ISO 2009 All rights reserved 1Thermoplastics materials for pipes and fittings for pressure applications
24、Classification, designation and design coefficient 1 Scope This International Standard establishes the classification of thermoplastics materials in pipe form and specifies the material designation. It also specifies a method for calculating the design stress. It is applicable to materials intended
25、for pipes and fittings for pressure applications. NOTE 1 Classification, minimum design coefficient and calculation method are based on the resistance to internal pressure with water at 20 C for 50 years, derived by extrapolation using the method given in ISO 9080. NOTE 2 Design coefficients for mul
26、tilayer pipes are described in the appropriate product (system) standards. 2 Normative references The 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 referen
27、ced document (including any amendments) applies. ISO 1043-1, Plastics Symbols and abbreviated terms Part 1: Basic polymers and their special characteristics ISO 9080, Plastics piping and ducting systems Determination of the long-term hydrostatic strength of thermoplastics materials in pipe form by e
28、xtrapolation 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 long-term hydrostatic strength LTHSquantity, with the dimension of stress, which represents the predicted mean strength at a temperature and time t NOTE 1 The quantity is expressed
29、in megapascals. NOTE 2 Temperature, , is expressed in degrees Celsius and time, t, is expressed in years. 3.2 lower confidence limit of the predicted hydrostatic strength LPLquantity, with the dimensions of stress, which represents the 97,5 % lower confidence limit of the predicted hydrostatic stren
30、gth at a temperature and time t BS EN ISO 12162:2009ISO 12162:2009(E) 2 ISO 2009 All rights reservedNOTE 1 The quantity is expressed in megapascals. NOTE 2 Temperature, , is expressed in degrees Celsius and time, t, is expressed in years. 3.3 minimum required strength MRS value of LPLat 20 C and 50
31、years, rounded down to the next smaller value of the R10 series or the R20 series NOTE The R10 series conforms to ISO 31and the R20 series conforms to ISO 4972. 3.4 categorized required strength at temperature and time t CRS, tvalue of LPLat temperature and time t, rounded down to the next smaller v
32、alue of the R10 series or the R20 series NOTE 1 CRS, tat 20 C and 50 years equals MRS. NOTE 2 Temperature, , is expressed in degrees Celsius and time, t, is expressed in years. NOTE 3 The R10 series conforms to ISO 31and the R20 series conforms to ISO 4972. 3.5 design coefficient C coefficient with
33、a value greater than 1, which takes into consideration service conditions as well as properties of the components of a piping system other than those represented in the lower confidence limit NOTE 1 The minimum value of C, Cmin, is defined and given for various thermoplastics pipe systems in Clause
34、6. NOTE 2 The design coefficient for a given application is specified in the relevant product (system) standard. 3.6 Design stress 3.6.1 design stress based on MRS classification sstress derived by dividing MRS by the design coefficient C, i.e. s= MRS/C NOTE 1 The maximum allowable design stress for
35、 a given material is derived by dividing MRS by the minimum design coefficient, Cmin, i.e. s= MRS/Cmin. NOTE 2 Design stress for a specific application is specified in the relevant product (system) standard. 3.6.2 design stress based on CRS, tvalue s, , tstress derived by dividing CRS, tby the desig
36、n coefficient C, i.e. s, , t= CRS, t/C NOTE 1 The maximum allowable design stress for a given material is derived by dividing CRS, tby the minimum design coefficient, Cmin, i.e. s, , t= CRS, t/Cmin. NOTE 2 Design stress for a specific application is specified in the relevant product (system) standar
37、d. BS EN ISO 12162:2009ISO 12162:2009(E) ISO 2009 All rights reserved 34 MRS classification of materials in pipe form A thermoplastics material shall be classified by its LPLvalues at 20 C and 50 years, rounded down to the next smaller value of the R10 series for LPL 40) PVDF copolymer PVDF homopoly
38、mer PA11 PA12 PPSU 1,6 1,25 1,25 1,25 1,25 1,6 1,6 1,4 1,6 1,6a1,4a1,4 1,6 1,6 1,6 1,4 aIn accordance with Table 1 of ISO 16422:2006 4BS EN ISO 12162:2009ISO 12162:2009(E) ISO 2009 All rights reserved 57 Calculation of design stress based on MRS classification The design stress, s, shall be calculat
39、ed using Equation (1) and rounded to the next lower value in the R20 series: sMRSC = (1) where MRS is the value of the minimum required strength (see 3.3); C is the applicable value of design coefficient in accordance with Clause 6. Unless otherwise specified in the relevant product standards, the m
40、aximum allowable design stress shall be calculated using the minimum design coefficient, Cmin. 8 Designation of materials in pipe form The designation of materials in pipe form shall include the following: the symbol of the material in accordance with ISO 1043-1; its classification number in accorda
41、nce with Clause 4, unless otherwise specified in the product standards. Example of the MRS designation of a PVC-U, with an MRS value of 25 MPa: PVC-U 250 A material may be designated to the next lower classification number. BS EN ISO 12162:2009ISO 12162:2009(E) 6 ISO 2009 All rights reservedAnnex A
42、(normative) The CRS, tvalue A.1 The CRS, tvalue The CRS, tvalues are given in Table A.1. The selected CRS, ttime, t, shall not exceed 100 years. The extrapolation time factors stated in ISO 9080 shall be respected. The selected CRS, ttemperature, , shall neither exceed the maximum ISO 9080 test temp
43、erature for the material in question, nor be more than 20 C below the lowest ISO 9080 test temperature, provided that the material is still suitable for the intended application. Table A.1 CRS, tvalues Range of lower confidence limits LPLMPa Categorized required strength CRS, tMPa 1 u LPL 1,25 1,25
44、u LPL 1,6 1,6 u LPL 2 2 u LPL 2,5 2,5 u LPL 3,15 1 1,25 1,6 2 2,5 3,15 u LPL 4 4 u LPL 5 5 u LPL 6,3 6,3 u LPL 8 8 u LPL 10 3,15 4 5 6,3 8 10 u LPL 11,2 11,2 u LPL 12,5 12,5 u LPL 14 14 u LPL 16 16 u LPL 18 10 11,2 12,5 14 16 18 u LPL 20 20 u LPL 22,4 22,4 u LPL 25 25 u LPL 28 28 u LPL 31,5 18 20 22
45、,4 25 28 31,5 u LPL 35,5 35,5 u LPL 40 40 u LPL 45 45 u LPL 50 50 u LPL 56 31,5 35,5 40 45 50 BS EN ISO 12162:2009ISO 12162:2009(E) ISO 2009 All rights reserved 7As an example of the use of the CRS, tvalue, material with LPL= 6,4 MPa at a given temperature of 70 C and time of 20 years is described a
46、s follows: EXAMPLE CRS70C, 20 years= 6,3 MPa A.2 Calculation of the design stress based on CRS, tvalue The design stress, s, t, shall be calculated using Equation (A.1): s, , t= ,CRStC(A.1) where CRS, tis the value of the categorized required strength (see 3.4); C is the applicable value of design c
47、oefficient in accordance with Clause 6. Unless otherwise specified in the relevant product (system) standards, the maximum allowable design stress shall be calculated using Cmin. BS EN ISO 12162:2009ISO 12162:2009(E) 8 ISO 2009 All rights reservedBibliography 1 ISO 3, Preferred numbers Series of pre
48、ferred numbers 2 ISO 497, Guide to the choice of series of preferred numbers and of series containing more rounded values of preferred numbers 3 ISO 10508, Plastics piping systems for hot and cold water installations Guidance for classification and design 4 ISO 16422:2006, Pipes and joints made of o
49、riented unplasticized poly(vinyl chloride) (PVC-O) for the conveyance of water under pressure Specifications BS EN ISO 12162:2009BS EN ISO12162:2009BSI GroupHeadquarters 389Chiswick High Road,London, W4 4AL, UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 - British Standards InstitutionBSI is the independent national body responsible for preparing BritishStanda
