AWWA C222-2008 Polyurethane Coatings for the Interior and Exterior of Steel Water Pipe and Fittings《钢制水管和配件的内部和外部用聚氨酯涂层》.pdf

1、The Authoritative Resource on Safe WaterANSI/AWWA C222-08(Revision of ANSI/AWWA C222-99)AWWA StandardEffective date: Dec. 1, 2008.First edition approved by AWWA Board of Directors June 20, 1999.This edition approved June 8, 2008.Approved by American National Standards Institute Sept. 17, 2008.Polyur

2、ethane Coatings for the Interior and Exterior of Steel Water Pipe and Fittings6666 West Quincy AvenueDenver, CO 80235-3098T 800.926.7337www.awwa.orgAdvocacyCommunicationsConferencesEducation and TrainingScience and TechnologySectionsiiAWWA StandardThis document is an American Water Works Association

3、 (AWWA) standard. It is not a specification. AWWA standardsdescribe minimum requirements and do not contain all of the engineering and administrative information normallycontained in specifications. The AWWA standards usually contain options that must be evaluated by the user of thestandard. Until e

4、ach optional feature is specified by the user, the product or service is not fully defined. AWWApublication of a standard does not constitute endorsement of any product or product type, nor does AWWA test, certify,or approve any product. The use of AWWA standards is entirely voluntary. This standard

5、 does not supersede or takeprecedence over or displace any applicable law, regulation, or codes of any governmental authority. AWWA standardsare intended to represent a consensus of the water supply industry that the product described will provide satisfactoryservice. When AWWA revises or withdraws

6、this standard, an official notice of action will be placed on the first page ofthe classified advertising section of Journal AWWA. The action becomes effective on the first day of the month followingthe month of Journal AWWA publication of the official notice.American National StandardAn American Na

7、tional Standard implies a consensus of those substantially concerned with its scope and provisions. AnAmerican National Standard is intended as a guide to aid the manufacturer, the consumer, and the general public. Theexistence of an American National Standard does not in any respect preclude anyone

8、, whether that person hasapproved the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or proceduresnot conforming to the standard. American National Standards are subject to periodic review, and users are cautionedto obtain the latest editions. Producers of

9、goods made in conformity with an American National Standard areencouraged to state on their own responsibility in advertising and promotional materials or on tags or labels that thegoods are produced in conformity with particular American National Standards.CAUTION NOTICE: The American National Stan

10、dards Institute (ANSI) approval date on the front cover of this standardindicates completion of the ANSI approval process. This American National Standard may be revised or withdrawn atany time. ANSI procedures require that action be taken to reaffirm, revise, or withdraw this standard no later than

11、 fiveyears from the date of publication. Purchasers of American National Standards may receive current information on allstandards by calling or writing the American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York,NY 10036; (212) 642-4900.All rights reserved. No part of thi

12、s publication may be reproduced or transmitted in any form or by any means, electronicor mechanical, including photocopy, recording, or any information or retrieval system, except in the form of briefexcerpts or quotations for review purposes, without the written permission of the publisher. Copyrig

13、ht 2008 by American Water Works AssociationPrinted in USAiiiCommittee PersonnelThe SWPMTAC Task Group on C222, which developed this edition, had the followingpersonnel at the time:Antonio Liberatore, ChairF.D. Barnes, Barnes Group International, Windsor, Calif. (AWWA)M. Bauer, Tnemec Company, Inc.,

14、North Kansas City, Mo. (AWWA)R.M. Buchanan, Canusa-CPS, Toronto, Ont. (AWWA)R.W. Geary, Tek-Rap Inc., Houston, Texas (AWWA)B.D. Keil, Continental Pipe Manufacturing, Pleasant Grove, Utah (SPFA)A. Liberatore, Madison Chemical Industries Inc., Milton, Ont. (AWWA)L. McKinney, Womble Company Inc., Houst

15、on, Texas (AWWA)R.D. Mielke, Northwest Pipe, Raleigh, N.C. (AWWA)R.E. Newby, ICI Devoe Coatings, Mandeville, La. (AWWA)J. OBrien, Tapecoat Company, Evanston, Ill. (AWWA)S.P. Scarpone, Reilly Industries Inc., Indianapolis, Ind. (AWWA)M.S. Soloninka, ShawCor Pipe Protection, Houston, Texas (AWWA)J.A.

16、Wise, Canus International Sales Inc., Surrey, B.C. (AWWA)The AWWA Standards Committee on Steel Pipe, which reviewed and approved this stan-dard, had the following personnel at the time of approval:John H. Bambei Jr., ChairGeorge J. Tupac, Vice-ChairDennis Dechant, SecretaryGeneral Interest MembersJ.

17、B. Allen,*Standards Engineer Liaison, AWWA, Denver, Colo. (AWWA)W.R. Brunzell, Brunzell Associates Ltd., Skokie, Ill. (AWWA)R.L. Coffey, HDR Engineering Inc., Omaha, Neb. (AWWA)H.E. Dunham, MWH Inc., Bothell, Wash. (AWWA)S.N. Foellmi, Black (2) acceptance on the basis of testing of samples of propos

18、ed materials in thepurchasers laboratory or other commercial laboratory designated by the purchaser; or(3) acceptance on another basis defined and specified by the purchaser.5.3.2 Panel preparation. Steel panels are to be prepared according to theprocedures detailed in Sec. 4.4.2.3. The size of the

19、panels are to be determined basedon the individual test requirements.5.3.3 Coating thickness. The coating shall be applied to a thickness inaccordance with Sec. 4.3.Sec. 5.4 Surface Preparation Inspection5.4.1 Cleaning. Immediately before abrasive blast cleaning, the pipe shall bevisually inspected

20、to ensure that the surfaces to be coated are free of any oil, grease,or other foreign matter.5.4.2 Profile. The depth of profile shall be determined by using replica tape,a depth micrometer, or surface profile comparator in accordance with ASTM D4417to ensure compliance with Sec. 4.4.2.2.5.4.3 Color

21、. The visual comparative standard prepared as per Sec. 4.4.2.3shall be used to determine that the color of the blasted surface meets the requirementof near-white metal in accordance with SSPC-SP 10/NACE No. 2.5.4.4 Steel temperature and dew point. The dew point shall be measured atthe time of abrasi

22、ve blast cleaning using a standard sling psychrometer or otherindustry-recognized equipment. The steel temperature shall be a minimum of 5F(3C) above the dew point temperature during the abrasive blast cleaning andapplication of the coating material. The ambient temperature shall be within thecoatin

23、g manufacturers recommendations.5.4.5 Rejection. The purchaser may reject any pipe or pipe section if thesurface condition does not comply with the requirements of Sec. 4.4.2.6. Pipe orpipe sections rejected because of inadequate cleaning shall be recleaned.16 AWWA C222-08Sec. 5.5 Shop- or Field-Coa

24、ted Pipe Inspection5.5.1 Coating appearance. All coated pipe shall be visually inspected. Thecoating shall be generally smooth and free of sharp protrusions. A minor amount ofsags, dimpling, scuffing, and curtaining that does not exceed 10 percent of thesurface shall not be considered cause for reje

25、ction. The coating shall have no blisters,cracks, bubbles, delamination, or any other visible defects. There shall be no wet orsticky areas in the coating. All imperfections shall be identified and repairedaccording to Sec. 4.6.5.5.2 Dry film thickness. Dry film thickness shall be measured in accord

26、ancewith SSPC-PA 2 to ensure compliance with Sec. 4.3. If the thickness is found to beless than the amount required, all of the pipe coated since the last thicknessmeasurement shall be checked and overcoated if necessary.5.5.3 Electrical continuity inspection. Electrical continuity inspection shall

27、beconducted in accordance with NACE RP-0188 any time after the coating hasreached sufficient cure, but prior to installation. The voltage setting shall be permanufacturers recommendation except that the minimum shall be 100 v/mil. Anyholidays indicated by the detector shall be marked and repaired pe

28、r Sec. 4.6.5.5.4 Adhesion. Adhesion testing shall be conducted on two sufficientlycured, coated sections of pipe from each shift selected at random with one from thebeginning of the shift and one from halfway through the shift. Adhesion testing shallbe conducted in accordance with ASTM D4541. The co

29、ating around the dolly shallbe scored completely through to the steel substrate. The adhesion will be consideredsatisfactory if the test value is a minimum of 1,500 psi (10,305 kPa). If the adhesionis not satisfactory, two additional tests shall be made at two different locations on thesame pipe. If

30、 either additional test fails, the pipe shall be rejected. If the pipe isrejected, a systematic inspection of all pipe coated on that shift shall be made, and allpipe not meeting this adhesion requirement shall be rejected. Damaged test areas ofaccepted pipe and areas determined to have unsatisfacto

31、ry adhesion shall be repairedin accordance with Sec. 4.6.Sec. 5.6 Notice of Nonconformance5.6.1 Surface preparation. The purchaser may reject any pipe if the surfacecondition does not comply with the requirements of Sec. 4.4.2. Pipe rejected becauseof inadequate cleaning shall be recleaned.POLYURETH

32、ANE COATINGS FOR THE INTERIOR AND EXTERIOR OF STEEL WATER PIPE AND FITTINGS 175.6.2 Coating materials. If any sample of coating material does not complywith this standard, then the coated pipe represented by the sample shall be repairedor rejected.5.6.3 Coated pipe. Coated pipe not meeting the minim

33、um requirements ofthis standard shall be repaired or rejected.SECTION 6: DELIVERYSec. 6.1 GeneralCoated pipe and other articles shall be packaged, handled, and stored in amanner that will minimize damage. Pipe or coating damaged in handling or otheroperations shall be repaired at no additional cost

34、to the purchaser. Damage tointernal lining or external coating shall be repaired as described in Sec. 4.6.Sec. 6.2 PackagingAll coating materials shall be supplied to the job site in the manufacturersoriginal unopened containers. Each container shall be plainly marked with the nameand address of the

35、 manufacturer, type of material, batch or lot number, date ofmanufacture, storage conditions, and information as required by governmentregulations.Sec. 6.3 Storage of MaterialsMaterials shall be stored and protected from the elements in compliance withgovernment regulations. Temperature ranges in th

36、e storage area shall be maintainedwithin the limits recommended by the manufacturer.Sec. 6.4 Affidavit of ComplianceWhen specified by the purchaser, the constructor shall provide an affidavit thatall material and work provided complies with the requirements of this standard.When specified by the purchaser, the constructor shall provide an affidavit that thecoating material supplied is of the same formulation(s) that was laboratory tested bythe manufacturer and found to meet or exceed the performance requirements of thisstandard.This page intentionally blank.