1、 ANSI/AWWA C224-11 (Revision of ANSI/AWWA C224-06) AW WA Standard Effective date: Oct. 1, 2011. First edition approved by AWWA Board of Directors June 17, 2001. This edition approved June 12, 2011. Approved by American National Standards Institute July 19, 2011. 6666 West Quincy Avenue Advocacy Denv
2、er, CO 80235-3098 Communications T 800.926.7337 Conferences www.awwa.org Education and Training Science and Technology Sections The Authoritative Resource on Safe Water Nylon-11-Based Polyamide Coating System for the Interior and Exterior of Steel Water Pipe, Connections, Fittings, and Special Secti
3、ons SM Copyright2011AmericanWaterWorksAssociation.AllRightsReserved. ii AWWA Standard This document is an American Water Works Association (AWWA) standard. It is not a specication. AWWA standards describe minimum requirements and do not contain all of the engineering and administrative information n
4、ormally contained in speci- cations. The AWWA standards usually contain options that must be evaluated by the user of the standard. Until each optional feature is specied by the user, the product or service is not fully dened. AWWA publication of a standard does not constitute endorsement of any pro
5、duct or product type, nor does AWWA test, certify, or approve any product. The use of AWWA standards is entirely voluntary. This standard does not supersede or take precedence over or displace any applicable law, regulation, or codes of any governmental authority. AWWA standards are intended to repr
6、esent a consensus of the water supply industry that the product described will provide satisfactory service. When AWWA revises or withdraws this standard, an ofcial notice of action will be placed in the ofcial notice section of Journal AWWA. The action becomes effective on the rst day of the month
7、following the month of Journal AWWA publication of the ofcial notice. American National Standard An American National Standard implies a consensus of those substantially concerned with its scope and provisions. An American National Standard is intended as a guide to aid the manufacturer, the consume
8、r, and the general public. The existence of an American National Standard does not in any respect preclude anyone, whether that person has approved the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standard. Ameri- can N
9、ational Standards are subject to periodic review, and users are cautioned to obtain the latest editions. Producers of goods made in conformity with an American National Standard are encouraged to state on their own responsibility in advertising and promotional materials or on tags or labels that the
10、 goods are produced in conformity with particular American National Standards. CAUTION NOTICE: The American National Standards Institute (ANSI) approval date on the front cover of this standard indicates completion of the ANSI approval process. This American National Standard may be revised or withd
11、rawn at any time. ANSI procedures require that action be taken to reafrm, revise, or withdraw this standard no later than ve years from the date of publication. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Stan
12、dards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036; (212) 642-4900, or e-mailing infoansi.org. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any informati
13、on or retrieval system, except in the form of brief excerpts or quotations for review purposes, without the written permission of the publisher. Copyright 2011 by American Water Works Association Printed in USA Copyright2011AmericanWaterWorksAssociation.AllRightsReserved. iii Committee Personnel e S
14、teel Water Pipe Manufacturers Technical Advisory Committee Task Group (SWPMTAC) on C224, which developed this edition, had the following personnel at the time: Adrien Lapeyre, Chair M. Bauer, Tnemec Company Inc., Kansas City, Kan. (AWWA) A. Fletcher, Tyco Water, Southbank, Australia (AWWA) A. Lapeyr
15、e, Arkema, Philadelphia, Pa. (AWWA) G. Larsen, Smith-Blair, Texarkana, Texas (AWWA) B. Murphy, Sherman-Williams Company, Villaneuva, N.M. (AWWA) R. Newby, ICI Devoe Coatings, Mandeville, La. (AWWA) M. Sangalli, Sensus Metering Systems, Texarkana, Texas (AWWA) G. Smith, Northwest Pipe Company, Poway,
16、 Calif. (AWWA) H.R. Stoner, Consultant, North Plaineld, N.J. (AWWA) G. Tate, Viking Johnson, Hitchen, U.K. (AWWA) J.A. Wise, Canus, International Sales Inc., Surrey, B.C. (AWWA) e AWWA Standards Committee on Steel Pipe, which reviewed and approved this standard, had the following personnel at the ti
17、me of approval: John H. Bambei Jr., Chair Dennis A. Dechant, Vice-Chair John L. Luka, Secretary General Interest Members W.R. Brunzell, Brunzell Associates Ltd., Skokie, Ill. (AWWA) R.J. Card, Lockwood Andrews & Newnam Inc., Sugar Hill, Ga. (AWWA) R.L. Coey, HDR Engineering Inc., Omaha, Neb. (AWWA)
18、H.E. Dunham, MWH Inc., Bothell, Wash. (AWWA) S.N. Foellmi, Black & Veatch Corporation, Irvine, Calif. (AWWA) R.L. Gibson, Freese and Nichols Inc., Fort Worth, Texas (AWWA) M.B. Horsley,* Black & Veatch Corporation, Kansas City, Mo. (AWWA) J.K. Jeyapalan, Dr. Jeyapalan & Associates, New Milford, Conn
19、. (AWWA) R.A. Kufaas, Norske Corrosion & Inspection Services Ltd., Surrey, B.C. (AWWA) J.L. Mattson, Corrosion Control Technologies, Sandy, Utah (AWWA) * Alternate Copyright2011AmericanWaterWorksAssociation.AllRightsReserved. iv W.J. Moncreif,* HDR Engineering Inc., San Diego, Calif. (AWWA) R. Orteg
20、a,* Lockwood Andrews & Newnam Inc., Houston, Texas (AWWA) E.S. Ralph, Standards Engineer Liaison, AWWA, Denver, Colo. (AWWA) A.E. Romer, AECOM, Newport Beach, Calif. (AWWA) J.R. Snow,* MWH Americas Inc., Denver, Colo. (AWWA) H.R. Stoner, Consultant, North Plaineld, N.J. (AWWA) C.C. Sundberg, CH2M HI
21、LL Inc., Issaquah, Wash. (AWWA) W.R. Whidden, Post Buckley Schuh & Jernigan, Orlando, Fla. (AWWA) Producer Members S.A. Arnaout, Hanson Pressure Pipe Inc., Dallas, Texas (AWWA) H.H. Bardakjian, Consultant, Glendale, Calif. (AWWA) M. Bauer, Tnemec Company Inc., North Kansas City, Mo. (AWWA) R.R. Carp
22、enter, American SpiralWeld Pipe Company, Birmingham, Ala. (MSS) D. Dechant, Dechant Infrastructure Service, Aurora, Colo. (AWWA) W.B. Geyer, Steel Plate Fabricators Associates, Lake Zurich, Ill. (AWWA) B.D. Keil, Northwest Pipe Company, Pleasant Grove, Utah (AWWA) J.L. Luka,* American SpiralWeld Pip
23、e Company, Columbia, S.C. (AWWA) R.D. Mielke,* Northwest Pipe Company, Raleigh, N.C. (AWWA) J. Olmos, Ameron International, Rancho Cucamonga, Calif. (AWWA) J.A. Wise, Canus International Sales Inc., Surrey, B.C. (AWWA) User Members G.A. Andersen, New York City Bureau of Water Supply, Little Neck, Ne
24、w York (AWWA) J.H. Bambei Jr., Denver Water, Denver, Colo. (AWWA) B. Cheng, Metro Vancouver, Burnaby, B.C. (AWWA) D.W. Coppes, Massachusetts Water Resources Authority, Southborough, Mass. (NEWWA) R.V. Frisz, US Bureau of Reclamation, Denver, Colo. (USBR) G. George, Tacoma Water, Water Supply Section
25、, Tacoma, Wash. (AWWA) T.J. Jordan, Metropolitan Water District of Southern California, La Verne, Calif. (AWWA) M. McReynolds,* Metropolitan Water District of Southern California, Oak Park, Calif. (AWWA) G. Oljaca,* Metro Vancouver, Burnaby, B.C. (AWWA) G.P. Stine, San Diego County Water Authority,
26、Escondido, Calif. (AWWA) N.A. Wigner, Los Angeles Department of Water & Power, Los Angeles, Calif. (AWWA) J.V. Young, City of Richmond, Richmond, B.C. (AWWA) *Alternate Liaison, nonvoting Copyright2011AmericanWaterWorksAssociation.AllRightsReserved. v Contents All AWWA standards follow the general f
27、ormat indicated subsequently. Some variations from this format may be found in a particular standard. Foreword I Introduction vii I.A Background. vii I.B History vii I.C Acceptance vii II Special Issues ix II.A Advisory Information on Material Application. ix III Use of is Standard ix III.A Purchase
28、r Options and Alternatives ix III.B Modication to Standard x IV Major Revisions. x V Comments x Standard 1 General 1.1 Scope 1 1.2 Purpose . 2 1.3 Application 2 2 References 2 3D e n i t i o n s . 3 4R e q u i r e m e n t s 4.1 Equipment 4 4.2 Materials and Workmanship . 4 4.3 Primer. 4 4.4 Polyamid
29、e Powder . 5 4.5 Coating Application 6 4.6 Field Procedures 10 5 Verication 5.1 Coating Materials Prequalications 11 5.2 Prequalication of Coating Materials Testing. 11 5.3 Quality Assurance and Records. 12 5.4 Inspection and Testing by the Purchaser 12 5.5 Quality Control Requirement of Coating Sys
30、tem . 12 5.6 Rejection. 13 6 Delivery 6.1 Packaging and Marking 14 6.2 Handling, Storage, and Shipping 14 6.3 Adavit of Compliance 15 Tables 1 Properties of Polyamide Powder Materials . 5 2 Prequalication Requirements of Coating System . 6 3 Quality Control Requirements of Applied Coating System 6 S
31、EC. PAGE SEC. PAGE Copyright2011AmericanWaterWorksAssociation.AllRightsReserved. is page intentionally blank. Copyright2011AmericanWaterWorksAssociation.AllRightsReserved. vii Foreword is foreword is for information only and is not a part of ANSI*/AWWA C224. I. Introduction. I.A. Background. Polyami
32、de (Nylon-11-based) coatings are thermoplastic coatings. Typically, they are placed by applying dry polyamide powder (ordinarily in a controlled plant environment, by any of several techniques, e.g., electrostatic spray, immersion in a uidized bed, spray onto preheated article, rotocoating) onto ste
33、el surfaces previously primed with a thin layer of epoxy primer (note that other primers may be used, as appropriate). When treated at the appropriate temperature, the dry polyamide powder melts to form a uniform, continuous polyamide coating on the steel surface. Simultaneously during this thermal
34、treatment, chemical reactions occur between the steel surface and epoxy and between epoxy and polyamide. ese chemical reactions provide for bonding between the polyamide coating and steel surface. e rst commercial use of polyamide coatings for the protection (from corrosion) of steel used in water-h
35、andling applications was in West Germany in 1970. Regard- ing the United States, it is believed that rst use was in 1985. However, prior to this, polyamide coatings had been used in 1983 for the protection of the interior of steel piping used in the petroleum industry. Currently, the use of polyamid
36、e coatings to protect steel has grown to include many types of articles (both interiors and exteriors) in a variety of industries, such as oil and natural gas exploration and production, and water and wastewater handling. Polyamide coatings also can be used to protect acces- sory steel articles, suc
37、h as pumps, valves, couplers, and owmeters. I.B. History. C224-01 was the rst standard specically concerning polyamide coating systems. However, it is noted that polyamide-based coatings have been used according to ANSI/AWWA Standard C550-01. e second edition of C224 was approved by the AWWA Board o
38、f Directors on Feb. 12, 2006. is edition was approved on June 12, 2011. I.C. Acceptance. In May 1985, the US Environmental Protection Agency (USEPA) entered into a cooperative agreement with a consortium led by NSF International (NSF) to develop voluntary third-party consensus standards and a certic
39、ation program for direct and indirect drinking water additives. Other members of the original consortium included the American Water Works Association Research * American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036. Copyright2011AmericanWaterWorksAssociation.A
40、llRightsReserved. viii Foundation (AwwaRF, now Water Research Foundation*) and the Conference of State Health and Environmental Managers (COSHEM). e American Water Works Association (AWWA) and the Association of State Drinking Water Administrators (ASDWA) joined later. In the United States, authorit
41、y to regulate products for use in, or in contact with, drinking water rests with individual states. Local agencies may choose to impose requirements more stringent than those required by the state. To evaluate the health eects of products and drinking water additives from such products, state and lo
42、cal agencies may use various references, including 1. An advisory program formerly administered by USEPA, Oce of Drinking Water, discontinued on Apr. 7, 1990. 2. Specic policies of the state or local agency. 3. Two standards developed under the direction of NSF, NSF /ANSI 60, Drinking Water Treatmen
43、t ChemicalsHealth Eects, and NSF/ANSI 61, Drinking Water System ComponentsHealth Eects. 4. Other references, including AWWA standards, Food Chemicals Codex, Water Chemicals Codex, and other standards considered appropriate by the state or local agency. Various certication organizations may be involv
44、ed in certifying products in accor- dance with NSF/ANSI 61. Individual states or local agencies have authority to accept or accredit certication organizations within their jurisdiction. Accreditation of certi- cation organizations may vary from jurisdiction to jurisdiction. Annex A, “Toxicology Revi
45、ew and Evaluation Procedures,” to NSF/ANSI 61 does not stipulate a maximum allowable level (MAL) of a contaminant for substances not regulated by a USEPA nal maximum contaminant level (MCL). e MALs of an unspecied list of “unregulated contaminants” are based on toxicity testing guidelines (noncarcin
46、ogens) and risk characterization methodology (carcinogens). Use of Annex A procedures may not always be identical, depending on the certier. ANSI/AWWA C224 does not address additives requirements. us, users of this standard should consult the appropriate state or local agency having jurisdiction in
47、order to 1. Determine additives requirements, including applicable standards. * Water Research Foundation, 6666 W. Quincy Ave., Denver, CO 80235. Persons outside the United States should contact the appropriate authority having jurisdiction. NSF International, 789 N. Dixboro Road, Ann Arbor, MI 4810
48、5. Both Publications available from National Academy of Sciences, 500 Fifth Street, NW, Washington, DC 20001. Copyright2011AmericanWaterWorksAssociation.AllRightsReserved. ix 2. Determine the status of certications by parties oering to certify products for contact with, or treatment of, drinking wat
49、er. 3. Determine current information on product certication. II. Special Issues. II.A. Advisory Information on Material Application. is standard denes the use of polyamide coatings for the interiors and exteriors of steel articles used for water handling in the following environments: aboveground, belowground, or underwater under normal conditions. Also, this standard describes the quality of polyamide coatings needed to produce long-term coating performancein particular, long-term corrosion protection.
