SANS 8180-2010 Ductile iron pipelines - Polyethylene sleeving for site application《球墨铸铁管 现场用聚乙烯套管》.pdf

1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-23896-4 SANS 8180:2010Edition 1ISO 8180:2006Edition 2SOUTH AFRICAN NATIONAL STANDARD Ductile iron pipelines Polyethylene sleeving for site

4、 application This national standard is the identical implementation of ISO 8180:2006 and is adopted with the permission of the International Organization for Standardization. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27

5、 12 344 1568 www.sabs.co.za SABS SANS 8180:2010 Edition 1 ISO 8180:2006 Edition 2 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS SC 138C, Water and sanitation Equipment and systems Cast and ductile iron pipes and fittings,

6、 in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in March 2010. INTERNATIONALSTANDARDISO8180Second edition2006-08-15Reference numberISO 8180:2006(E) ISO 2006Ductile iron pipelines Polyethylene sleevin

7、g for site applicationCanalisations en fonte ductile Manche en polythylne pour application sur siteSANS 8180:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 8180:2006(E)ii ISO 2006 All rights reservedPDF disclaimerThis PDF file may co

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12、e postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandSANS 8180:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 8180:2006(E) ISO 2006 All rights reserved

13、 iiiForewordISO (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 ISOtechnical committees. Each member body interested in a subject for which a

14、technical committee has beenestablished has the right to be represented on that committee. International organizations, governmental andnon-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the InternationalElectrotechnical Commission (IEC) on all matters o

15、f 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 Standardsadopted by the technical committees are circulated to

16、the member bodies for voting. Publication as anInternational 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 patentrights. ISO shall not be held responsible for iden

17、tifying any or all such patent rights.ISO 8180 was prepared by Technical Committee ISO/TC 5, Ferrous metal pipes and metallic fittings,Subcommittee SC 2, Cast iron pipes, fittings and their joints.This second edition cancels and replaces the first edition (ISO 8180:1985), which has been technically

18、revised.SANS 8180:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ivSANS 8180:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .INTERNATIONAL STANDARD ISO 8180:2006(E) ISO 2006 A

19、ll rights reserved 1Ductile iron pipelines Polyethylene sleeving for site application1ScopeThis International Standard specifies the characteristics of polyethylene film, commonly called sleeving, used asadditional protection against corrosion for ductile iron pipelines, particularly when laid in ag

20、gressive soilconditions.This film, the efficiency of which has been proved by experience, takes the form of a sheet or tube fitted aroundthe pipes and fittings, on-site, immediately before pipe-laying.2 Normative referencesThe following referenced documents are indispensable for the application of t

21、his document. For datedreferences, only the edition cited applies. For undated references, the latest edition of the referenced document(including any amendments) applies.ISO 1183-1, Plastics Methods for determining the density of non-cellular plastics Part 1: Immersionmethod, liquid pyknometer meth

22、od and titration methodISO 527-3, Plastics Determination of tensile properties Part 3: Test conditions for films and sheetsISO 7765-1, Plastics film and sheeting Determination of impact resistance by the free-falling dart method Part 1: Staircase methodsISO 6383-2, Plastics Film and sheeting Determi

23、nation of tear resistance Part 2: Elmendorf method3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1 polyethylene sleevingsleeving of piping with polyethylene film in tube or sheet form3.2 polyethylene filmfilm extruded from virgin polyethylene ra

24、w material4 Raw material4.1 CharacteristicsThe material used for making the film shall be polyethylene or a mixture of polyethylene and/or ethylene andolefin copolymers.When tested in accordance with ISO 1183-1, its density shall be between and .910 kg/m3935 kg/m3SANS 8180:2010This s tandard may onl

25、y be used and printed by approved subscription and freemailing clients of the SABS .ISO 8180:2006(E)2 ISO 2006 All rights reservedNOTE The raw material used to produce film to this standard typically has a volume resistivity of at leastohm-centimetres and the finished film typically has a dielectric

26、 strength of at least .4.2 Additives and impuritiesIf protection against ultra-violet rays is required, the material shall be stabilized by the addition of an appropriateproduct; if carbon black is used for this purpose, the addition shall be in the range of 2 to by mass.The addition of antioxidants

27、 is permitted, but shall be not greater than by mass.Any impurities in the polymer shall be less than by mass.The product shall not contain any plasticizers or fillers.4.3 Regenerated or re-worked productsThe use of regenerated products is not permitted.The use of re-worked products free from dirt f

28、rom the film manufacturers own production is permitted as longas the same type of original product is used and the films thus manufactured meet the requirements of thisInternational Standard.5 Sleeving5.1 AppearanceThe film shall not have holes, splits, punctures, perforations or any other detriment

29、al faults affecting its strengthor impermeability.5.2 Dimensions5.2.1 WidthThe nominal flat width of the tube or flat sheet is specified in national standards or in the manufacturerscatalogues.5.2.2 ThicknessThe nominal thickness of the sleeving shall be not less than . The negative tolerance on the

30、 nominalthickness shall not exceed .If necessary, it is permitted to use thicker sleeving or double sleeving.6 Mechanical properties6.1 Tensile strengthWhen tested in accordance with ISO 527-3, using test specimens of type 2, a gauge length of and a rateof grip separation of , the tensile stress at

31、break of the film in the longitudinal and transversedirections shall be not less than .101532 V/m3%0,5 %0,1 %200m10 %50 mm500 mm/min20 MPaSANS 8180:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 8180:2006(E) ISO 2006 All rights reser

32、ved 36.2 ElongationWhen tested in accordance with ISO 527-3, using test specimens of type 2, a gauge length of and a rateof grip separation of , the elongation at fracture of the film in the longitudinal and transversedirections shall be not less than .6.3 Impact resistanceWhen tested in accordance

33、with ISO 7765-1 Method A, the impact resistance of the film shall be not less than.6.4 Propagation tear resistanceWhen tested in accordance with ISO 6383-2, the propagation tear resistance of the film in the longitudinal andtransverse directions shall be not less than .7MarkingThe polyethylene film

34、supplied shall bear a card or label giving the following information:a) the manufacturers name or trademark;b) the year of manufacture;c) the number of this International Standard, i.e. ISO 8180;d) the nominal film thickness;e) the applicable range of nominal pipe diameter size(s).8 Storage and tran

35、sportationThe sleeving shall be suitably packaged and protected by the manufacturer for transportation and storage.When the sleeving is stored prior to use, it shall be sheltered from direct sunlight.9 Conditions of use and fittingFor determining when polyethylene sleeving is required and also the m

36、ethod of fitting, the user should refer toappropriate national specifications or to the manufacturers catalogues.50 mm500 mm/min500 %900 g20 NSANS 8180:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .This page has been left blank intentio

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