1、AWWA Standard SM Liquid Coatings for Aboveground Steel Water Pipe and Fittings Effective date: Jan. 1, 2017. First edition approved by AWWA Board of Directors Nov. 1, 1991. This edition approved June 19, 2016. Approved by American National Standards Institute July 26, 2016. ANSI/AWWA C218-16 (Revisi
2、on of ANSI/AWWA C218-08) Copyright 2017 American Water Works Association. All Rights Reserved. ii AWWA Standard This document is an American Water Works Association (AWWA) standard. It is not a specification. AWWA standards describe minimum requirements and do not contain all of the engineering and
3、administrative information normally contained in specifications. The AWWA standards usually contain options that must be evaluated by the user of the standard. Until each optional feature is specified by the user, the product or service is not fully defined. AWWA pub- lication of a standard does not
4、 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 does not supersede or take precedence over or displace any applicable law, regulation, or code of any governmental authority. AW
5、WA standards are intended to represent a consensus of the water industry that the product described will provide satisfactory ser- vice. When AWWA revises or withdraws this standard, an official notice of action will be placed on the first page of the Official Notice section of Journal American Wate
6、r Works Association. The action becomes effective on the first day of the month following the month of Journal American Water Works Association publication of the official notice. American National Standard An American National Standard implies a consensus of those substantially concerned with its s
7、cope and provisions. An American National Standard is intended as a guide to aid the manufacturer, the consumer, and the general public. The existence of an American National Standard does not in any respect preclude anyone, whether that person has ap - proved the standard or not, from manufacturing
8、, marketing, purchasing, or using products, processes, or procedures not conforming to the standard. American National 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 encour
9、- aged to state on their own responsibility in advertising and promotional materials or on tags or labels that the goods are produced in conformity with particular American National Standards. Caution n oti Ce : The American National Standards Institute (ANSI) approval date on the front cover of thi
10、s standard indicates completion of the ANSI approval process. This American National Standard may be revised or withdrawn at any time. ANSI procedures require that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of publication. Purchasers of Amer
11、ican National Standards may receive current information on all standards by calling or writing the American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036; 212.642.4900; or emailing infoansi.org. ISBN-13, print: 978-1-62576-198-9 eISBN-13, electronic: 978-1-61300
12、-400-5DOI: http:/dx.doi.org/10.12999/AWWA.C218.16 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 information or retrieval system, except in the form of brief excerpts or q
13、uotations for review purposes, without the written permission of the publisher. Copyright 2017 by American Water Works Association Printed in USA hours of work by your fellow water professionals. Revenue from the sales of this AWWA material supports ongoing product development. Unauthorized distribu
14、tion, either electronic or photocopied, is illegal and hinders AWWAs mission to support the water community. This AWWA content is the product of thousands of Copyright 2017 American Water Works Association. All Rights Reserved. iii Committee Personnel The Steel Water Pipe Manufacturers Technical Adv
15、isory Committee (SWPMTAC) Task Group on updating ANSI/AWWA C218 had the following personnel at the time: Bob Murphy, Chair A. Cain, Chemline, St. Louis, Mo. (AWWA) L. McKinney, Womble Company Inc., Houston, Texas (AWWA) R. Mielke, Northwest Pipe, Raleigh, N.C. (AWWA) B. Murphy, Sherwin-Williams Comp
16、any, Ventura, Calif. (AWWA) V. ODea, Tnemec Company Inc., North Kansas City, Mo. (AWWA) F. Rampton, Trenton Corporation, Ann Arbor, Mich. (AWWA) The AWWA Standards Committee on Steel Pipe, which reviewed and approved this standard, had the following personnel at the time of approval: John H. Bambei
17、Jr., Chair Dennis Dechant, Vice-Chair John L. Luka, Secretary General Interest Members W.R. Brunzell, Brunzell Associates Ltd., Skokie, Ill. (AWWA) R.J. Card, Lockwood, Andrews the types of volatile organic compound (VOC) allowances permitted by regula- tory agencies; and regulatory requirements for
18、 lead abatement. The paint and coating systems in this standard are designed to assist the user in producing specifications to meet these needs. I.B. History. In November 1986, the AWWA Standards Council authorized AWWAs Steel Pipe Committee to develop a new standard for coatings to be used on above
19、ground steel water pipe exposed to the atmosphere. The first edition of this standard was published as ANSI/AWWA C218-91, Standard for Coating the Exterior of Aboveground Steel Water Pipelines and Fittings, with an effective date of Nov. 1, 1991. Subsequent editions of this standard were approved by
20、 the AWWA Board of Directors on June 17, 1995, Jan. 24, 1999, June 16, 2002, and Jan. 27, 2008. This edition of C218 was approved on June 19, 2016. I.C. Acceptance. This standard has no applicable information for this section. II. Special Issues. II.A. Advisory Information on Product Use. This stand
21、ard defines the performance and quality of external pipe coatings and coating systems designed to protect and prevent atmospheric corrosion. This standard applies to the exterior coating of aboveground steel water pipelines and the associated fittings installed aboveground, outdoors, or inside an as
22、sociated pump station, a valve chamber, or other water facilities. The coating systems cited in this standard are not all-inclusive but are those most * American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036. Copyright 2017 American Water Works Association. All
23、Rights Reserved. viii commonly used with an accepted performance record. Before selecting and specifying any of these coating systems, the purchaser should determine their suitability for the intended service. II.A.1 General. This standard presents several alternative coating systems currently in us
24、e in the water industry, often serving dual functions of corrosion protection and aesthetics. Another function of coating systems may be to color code the pipe to identify the type of service. Most coating manufacturers are reformulating their coatings to comply with cur- rent federal, state or prov
25、incial, and local environmental regulations. Some of the coat- ings discussed in this standard have been used successfully as solvent-based coatings for the last 20 to 30 years but are now available as water-based coatings. Others have been reformulated to reduce the amount of solvents, resulting in
26、 coatings with much lower VOCs. In some cases, high-solids coatings have been developed in which the solids content exceeds 80 percent and may reach 100 percent. Primers have been refor- mulated to remove heavy metals and toxic inhibitors. In many instances, these changes have altered the applicatio
27、n, curing, adhesion, and inhibiting characteristics of coating systems. The manufacturer should be con- sulted for the technical data and material safety data sheets, which provide the prospec- tive user with the information necessary to select the coating system that best satisfies the purchasers r
28、equirements. II.A.2 Materials. Code of Federal Regulations 29,* Labor-Part 1910, Occupational Safety and Health Administration (OSHA) regulations establish restrictive limits on the constructor regarding inhaling or absorbing lead- and chromate-bearing pigments and solvents through the skin. This re
29、gulation refers to shop applications, and it can significantly increase the cost of shop-coating applications. Whenever coating materials are referenced to federal, military, or other standards, the reference identifies a generic type of coating material or system. II.A.3 Selecting coating systems.
30、Several generic coating systems (see Table 1 in Section 4) are included in this standard, because no single coating or coating system is appropriate for all service applications. Often it is impractical for an occasional coatings user to make sufficient laboratory tests to verify and compare the rel
31、ative performance characteristics of various coating systems to a given set of performance criteria. Consequently, it is necessary for the purchaser to consider the atmospheric * Available from the US Government Printing Office, Superintendent of Documents, Washington, DC 20402. Copyright 2017 Ameri
32、can Water Works Association. All Rights Reserved. ix and environmental conditions of service to which the coating or coating system will be exposed. Refer to Section 6 and Table 3 in SSPC,* Painting Manual, Volume 2, Systems and Specifications, chapter 1, for definitions of atmospheric and environme
33、ntal conditions of service. The coatings listed in this standard have been used extensively and have pro- vided excellent corrosion protection and weathering endurance. In recent years, the development of new polymers, pigments, and solvents has contributed to the rapid advancement of materials tech
34、nology for painting and coating of steel structures. These advancements, coupled with regulatory agency concerns about air pollution by VOCs, have led to the development of many new paint formulations. Although not listed in this standard, many of these new products provide performance equal to or b
35、etter than the systems presented in this standard. III. Use of This Standard. It is the responsibility of the user of an AWWA standard to determine that the products described in that standard are suitable for use in the particular application being considered. III.A. Purchaser Options and Alternati
36、ves. The fo llowing information should be provided by the purchaser. 1. Standard used, that is, ANSI/AWWA C218, Liquid Coatings for Above- ground Steel Water Pipe and Fittings, of latest revision. 2. Any exceptions to the standard that may be required. 3. Diameter, length, and location of the pipeli
37、ne. 4. Coating system to be supplied (Sec. 4.2). 5. Color, if special color is specified (Sec. 4.2.2, 4.2.3, 4.2.4, 4.2.6, and 4.2.7). 6. Optional four-coat system (Sec. 4.2.2). 7. Optional two-coat system (Sec. 4.2.5 and 4.2.6). 8. Verification of film thickness of the coating or coating system (Se
38、c. 4.3.2.4). 9. Surface preparation for overcoating (Sec. 4.4.1.2). 10. Previously coated pipe (Sec. 4.4.1.2). 11. Requirements for visual comparative standards for blast cleaning (Sec. 4.4.2.1). 12. Coating of special pipe fittings and appurtenances (Sec. 4.5.12). 13. Coating requirements for threa
39、ded connections (Sec. 4.5.12.3). 14. Inspection (Sec. 5.4). 15. Adhesion test procedure (Sec. 5.5.4.1). 16. Affidavit of compliance, if required (Sec. 6.3). * SSPC: The Society for Protective Coatings, 40 24th Street, 6th Floor, Pittsburgh, PA 15222. Copyright 2017 American Water Works Association. All Rights Reserved.
