SANS 16132-2010 Ductile iron pipes and fittings - Seal coats for cement mortar linings《球墨铸铁管和配件 水泥灰浆衬套的封装层》.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 978-0-626-23906-0 SANS 16132:2010Edition 1ISO 16132:2004Edition 1SOUTH AFRICAN NATIONAL STANDARD Ductile iron pipes and fittings Seal coats for ceme

4、nt mortar linings This national standard is the identical implementation of ISO 16132:2004 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 Fa

5、x: +27 12 344 1568 www.sabs.co.za SABS SANS 16132:2010 Edition 1 ISO 16132:2004 Edition 1 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 f

6、ittings, 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. INTERNATIONALSTANDARDISO16132First edition2004-07-01Reference numberISO 16132:2004(E) ISO 2004Ductile iron pipes and fittings Se

7、al coats for cement mortar liningsTuyaux et raccords en fonte ductile Seal coats pour les revtements de mortier de cimentSANS 16132:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 16132:2004(E)ii ISO 2004 All rights reservedPDF discla

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11、ved. Unless otherwise specified, no part of this publication 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 orISOs member body in the country of the requester

12、.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandSANS 16132:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 16132:2004(E) IS

13、O 2004 All rights reserved iiiContents Page1 Scope 12 Normative references 13 Terms and definitions 14 Performance test requirements 24.1 Short term sealing efficiency . 24.2 Long term efficiency . 25 Routine Test Requirements 25.1 General . 25.2 Visual appearance . 35.3 Coating thickness . 35.4 Adh

14、esion 36 Marking . 3Annex A (normative) Short term sealing efficiency 4Annex B (normative) Long term efficiency 5Annex C (normative) Coating thickness measurement using test film . 7Annex D (normative) Adhesion test . 9Bibliography . 11SANS 16132:2010This s tandard may only be used and printed by ap

15、proved subscription and freemailing clients of the SABS .ISO 16132:2004(E)iv ISO 2004 All rights reservedForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies(ISO member bodies). The work of preparing International Standards is normal

16、ly carried out through ISOtechnical committees. Each member body interested in a subject for which a 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 wo

17、rk. ISO collaborates closely with the InternationalElectrotechnical 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 Interna

18、tional Standards. Draft International Standardsadopted by the technical committees are circulated to 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 ele

19、ments of this document may be the subject of patentrights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 16132 was prepared by Technical Committee ISO/TC 5, Ferrous metal pipes and metallic fittings,Subcommittee SC 2, Cast iron pipes, fittings and their joints.S

20、ANS 16132:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 16132:2004(E) ISO 2004 All rights reserved vIntroductionThe intended purpose of a seal coat is to reduce the contact between a cement mortar lining and the contentsof a water m

21、ain, thereby restricting the leaching of inorganic materials into the water supply.Seal coats are usually specified where the pipeline is to convey soft waters and/or where residence times arevery long. Supply water quality data for such pipelines should be discussed between the prospective client a

22、ndthe seal coated pipe supplier to ensure the suitability of the product for use.Attention is drawn to the fact that seal coated cement mortar lined surfaces in contact with, or likely to come intocontact with, potable water need to conform to the requirements of national or international water supp

23、ly orwater quality regulations. Approval may be required for the individual components of the system or for thecombined system depending upon the requirements of those national or international water supply or waterquality regulations when used in accordance with the product manufacturers instructio

24、ns for use; and under any other appropriate conditions defined for that product within any published list of substances,products and processes approved to those Water Supply or Water Quality Regulations.SANS 16132:2010This s tandard may only be used and printed by approved subscription and freemaili

25、ng clients of the SABS .viSANS 16132:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .INTERNATIONAL STANDARD ISO 16132:2004(E) ISO 2004 All rights reserved 1Ductile iron pipes and fittings Seal coats for cement mortar linings1ScopeThis Int

26、ernational Standard specifies the requirements for seal coatings for factory application to the surfaces ofcement mortar linings, which are factory applied to the interior of ductile iron pipes and fittings.It also gives performance test requirements for short term sealing efficiency and long term d

27、urability andrequirements for routine testing for visual appearance, coating thickness and adhesion.This International Standard is applicable to products for potable and other water applications.2 Normative referencesThe following referenced documents are indispensable for the application of this do

28、cument. For datedreferences, only the edition cited applies. For undated references, the latest edition of the referenced document(including any amendments) applies.ISO 2439:1997, Flexible cellular polymeric materials Determination of hardness (indentation technique)ISO 2808, Paints and varnishes De

29、termination of film thicknessISO 10523, Water quality Determination of pHASTM D3330-02, Standard Test Method for Peel Adhesion of Pressure Sensitive Tape3 Terms and definitionsFor the purposes of this International Standard, the terms and definitions given below apply.3.1 ductile ironcast iron in wh

30、ich graphite is present in substantially spheroidal form3.2 fittingcasting other than a pipe, which allows pipeline deviation or change of direction or boreNOTE Flanged-socket pieces, flanged-spigot pieces and collars are classified as fittings.3.3 test filmfilm of consistent thickness and density,

31、morphologically stable at the temperature of the substrate during sealcoat application, used as a surrogate surface for the measurement of coating thicknesses3.4 pipecasting of uniform bore, straight in axis, having spigot, socket, flange or plain endsNOTE This does not include flanged socket pieces

32、, flanged spigot pieces and collars, which are classified as fittings.SANS 16132:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 16132:2004(E)2 ISO 2004 All rights reserved3.5 productseal coated, cement mortar lined iron pipe or fitti

33、ng3.6 seal coatcoating applied over a cement mortar lining to control the interactions between the lining and the contents of theconduit3.7 performance testproof of design test, done once and repeated only after a relevant change of material or supplier of the seal coator lining, or relevant change

34、in process design4 Performance test requirements4.1 Short term sealing efficiencyWhen tested in accordance with Annex A, the pH of the test water shall not exceed 9,5.By agreement between the manufacturer of the product and the customer, other performance tests with otherexposure periods, test water

35、s and/or limits of pH value may be undertaken to suit particular national orcustomer requirements.4.2 Long term efficiencyWhen tested in accordance with Annex B, the pH of the test water shall not exceed 9,5 for each of the testsamples.By agreement between the manufacturer of the product and the cus

36、tomer, other performance tests with otherexposure periods, test waters and/or limits of pH value may be undertaken to suit particular national orcustomer requirements.However, if the seal coat has been tested and documented by the manufacturer to a national standard andsuccessfully used for a minimu

37、m of five years, the performance of the type test in accordance with Annex B isonly required for significant changes in the coating material, type or formulation which could adversely affect theperformance of the seal coat.5 Routine Test Requirements5.1 GeneralCoating and re-work procedures (e.g. dr

38、ying regimes for solvent-based coatings and mixing and curing regimesfor multi-component materials) shall be defined by the manufacturer of the product in agreement with the sealcoat supplier, if necessary, so as to enable the product to conform to the requirements of this InternationalStandard.The

39、tests specified in 5.2 to 5.4 shall be carried out on factory seal coated pipes or fittings as opposed toseparately prepared test pieces.Sampling plans for the tests specified in 5.2 to 5.4, specific to the seal coating material used, the size of thebatch and the storage conditions, shall be specifi

40、ed by the manufacturer of the product for each batch ofproduct.Where a non-conforming product is identified, the product shall either be re-worked, so that it meets therequirements of this International Standard, or be rejected.SANS 16132:2010This s tandard may only be used and printed by approved s

41、ubscription and freemailing clients of the SABS .ISO 16132:2004(E) ISO 2004 All rights reserved 35.2 Visual appearanceWhen examined visually, the seal coat shall be free from any coating irregularities likely to be detrimental to theperformance of the seal coat (as required by the performance tests

42、in this International Standard). Themanufacturer shall define those coating irregularities (e.g., hairline cracks or pinholes) which are considered notto be detrimental to the performance of the seal coat (as required by the performance tests in this InternationalStandard), taking into account the n

43、ature of the seal coat material.5.3 Coating thicknessWhen tested in accordance with Annex C or any appropriate method defined in ISO 2808, the wet or drycoating thickness shall be within the limits specified by the manufacturer of the product in conjunction with theseal coat supplier, if necessary.5

44、.4 AdhesionWhen tested in accordance with Annex D, one of the following requirements shall be met: where a cross cut is made in the seal coat, the adhesive strength shall fall within the range of 1 to 3; or where no cross cut is used, the area of disbonded coating shall be less than of the test area

45、.Any area damaged during testing shall be repaired in accordance with a procedure defined by the manufacturerof the product in agreement with the seal coat supplier.6MarkingEach seal coated pipe or fitting shall be identified with the pipe manufacturers name or mark.In addition, seal coated pipes sh

46、all be indelibly and legibly marked on the external surface with the number andyear of this International Standard.NOTE Where pipes are bundled, the required markings may be applied to the bundle rather than to individual pipes.10 %SANS 16132:2010This s tandard may only be used and printed by approv

47、ed subscription and freemailing clients of the SABS .ISO 16132:2004(E)4 ISO 2004 All rights reservedAnnex A(normative)Short term sealing efficiencyA.1 PrincipleThe initial or short term sealing efficiency of a seal coat applied to a cement mortar lined surface that is exposedto a given test water is

48、 determined by measuring the pH of test water after three successive periods ofexposure within a seal coated pipe sample.A.2 Materials and apparatusA.2.1 Paraffin wax, solventless epoxy, silicone resin or other suitable sealing material.A.2.2 Test water, having bicarbonate alkalinity of approximatel

49、y as CaCO3, at equilibrium with theatmosphere (i.e. no artificially induced carbon dioxide level), and with a stable pH of .This water shall be produced by dissolving of CaCl2(calcium chloride) andof NaHCO3(sodium bicarbonate) in of distilled water.A.2.3 Petroleum jelly.A.3 ApparatusA.3.1 Glass plate.A.3.2 pH meter, having capacity to measure pH 0 to pH 14, with discrimination of a pH of 0,01 or better.A.4 Preparation of test samplesThe test shall be carried out using a nominally long DN 150 seal coated and cement mort