AWWA C218-2002 地面钢制供水管道和配件外部的涂覆.pdf

ANSI/AWWA C218-O2 Revision of ANSVAWWA C218-99 Amer kan Water Works Association The Authoritative Resource for Safe Drinking WaterSM A W A Standard Coating the Exterior - of Aboveground Steel Water Pipelines and Pittings -I in American Nafioml Siandards Instilufe Effective date Feb. 1 , 2003. First edition approved by AWWA Board of Directors Jan. 27, 1991. This edition approved June 16, 2002. Approved by American National Standards Institute Nov. 19, 2002. 6666 West Quincy Avenue Denver, CO 80235-3098 T 800.926.7337 www.awwa.org Advocacy Communications Conferences Education and Training b Science and Technology Sections Copyright American Water Works Association Provided by IHS under license with AWWA Not for ResaleNo reproduction or networking permitted without license from IHS --,--,,,,,,,--- 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 administrative ination normally contained in specifications. The AWWA standards usually contain options that must be uated by the user of the standard. Until each optional feature is specified by the user, the product or service is not fully defined. AWWA publication 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. AWWA standards are intended to represent a consensus of the water supply industry that the product described will provide satisfactory service. When AWWA revises or withdraws this standard, an official notice of action will be placed on the first page of the classified advertising section of journal AWWA. The action becomes effective on the first day of the month following the month of journal AWWA publication of the official 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 consumer, 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 coning 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 conity 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 goods are produced in conity 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 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 American National Standards may receive current ination on all standards by calling or writing the American National Standards Institute, 25 W. 43rd St., Fourth Floor, New York, NY 10036; 212 642-4900. AWWA unites the drinking water community by developing and distributing authoritative scientific and technological knowledge. Through its members, AWWA develops industry standards for products and processes that advance public health and safety. AWWA also provides quality improvement programs for water and wastewater utilities. All rights reserved. No part of this publication may be reproduced or transmitted in any or by any means, electronic or mechanical, including photocopy, recording, or any ination or retri system, except in the of brief excerpts or quotations for review purposes, without the written permission of the publisher. Copyright O 2003 by American Water Works Association Printed in USA Copyright American Water Works Association Provided by IHS under license with AWWA Not for ResaleNo reproduction or networking permitted without license from IHS --,--,,,,,,,--- 标准分享网 w w w .b z f x w .c o m 免费下载 Committee Personnel The Steel Water Pipe-Manufacturers Technical Advisory Committee SWMTAC Task Group on updating A W A C2 18 had the following personnel at the time Henry R. Stoner, Chair Mike Bauer, Tnemec Company Inc., N. Kansas City, Kan. Greg Smith, Northwest Pipe Company, Poway, Calif. H.R. Stoner, Consultant, North Plainfield, N.J. The AWWA Standards Committee on Steel Pipe, which reviewed and approved this standard, had the following personnel at the time of approval George J. Tupac, Chair John H. Bambei Jr., Vice-Chair Dennis Dechant, Secretary Consumer Members G.A. Andersen, New York City Department of Environmental Protection, Corona, N.Y. J.H. Bambei Jr., Denver Water Department, Denver, Colo. D.W. Coppes, Massachusetts Water Resources Authority, Chelsea, Mass. R.V. Frisz, US Bureau of Reclamation, Denver, Colo. T.R. Jervis, Greater Vancouver Regional District, Burnaby, B.C. T.J. Jordan, Metropolitan Water District of Southern California, La Verne, Calif. T.A. Larson, Tacoma Public Utilities, Tacoma, Wash. A.L. Linard, Los Angeles Water the types of volatile organic compound VOC allowances permitted by regulatory agencies; and regulatory requirements for 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 aboveground steel water pipe exposed to the atmosphere. The first edition of this standard was published as ANSUAWWA C2 18-9 1, Standard for Coating the Exterior of Aboveground Steel Water Pipelines and Fittings, with an effective date of Nov. 1, 1991. The second edition of this standard was approved by the AWWA Board of Directors on June 17, 1995. The third edition of the standard was approved on Jan. 24, 1999. This fourth edition was approved by the A W A Board of Directors on June 16, 2002. I.C. Acceptance. II. Special Issues. 1I.A. This standard has no applicable ination for this section. Advisory Ination on Product Use. This standard defines the perfor- mance 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 associated pump station, valve chamber, or other water facilities. The coating systems cited in this standard are not all-inclusive but are those i x Copyright American Water Works Association Provided by IHS under license with AWWA Not for ResaleNo reproduction or networking permitted without license from IHS --,--,,,,,,,--- most commonly used with an accepted perance record. Before selecting and specifying any of these coating systems, the purchaser should determine their suitability for the intended service. 1I.A. 1. General. This standard presents several alternative coating systems currently in use 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. To comply with federal, state, provincial, and local environmental regulations, most coating manufacturers are reulating their coatings to comply with the current regulations. Some of the coatings discussed in this standard have been used successfully as solvent-base coatings for the last 20 to 30 years but are now available as water-based coatings. Others have been reulated to reduce the amount of solvents, resulting in 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 are being reulated to remove heavy metals and toxic inhibitors. In many instances, these changes have altered the application, curing, adhesion, and inhibiting characteristics of coating systems. The manufacturer should be consulted for the technical data and material safety data sheets, which provide the prospective user with the ination necessary to select the coating system that best satisfies the purchaser’s requirements. Code of Federal Regulations 29,* Labor-Part 19 10, 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 regulation refers to shop applications, and it can significantly increase the cost of shop coating applications. Materials. Whenever coating materials are referenced to federal, military, or other standards, the reference identifies a generic type of coating material or system. Selecting coating systems. Several generic coating systems see Table i 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 relative perance *Available from the US Government Printing Office, Superintendent of Documents, Washington, DC 20402. X Copyright American Water Works Association Provided by IHS under license with AWWA Not for ResaleNo reproduction or networking permitted without license from IHS --,--,,,,,,,--- 标准分享网 w w w .b z f x w .c o m 免费下载 characteristics of various coating systems to a given set of perance criteria. Consequently, it is necessary for the purchaser to consider the atmospheric and environmental conditions of service to which the coating or coating system will be exposed. Refer to Sec. 6 and Table 3, SSPC* Painting Manual Vol. 2, Systems and Speczfications, Eighth edition ZOOO, Chap. 1, for definitions of atmospheric and environmental conditions of service. The coatings listed in this standard have been used extensively and have provided 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 technology 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 ulations. Although not listed in this standard, many of these new products provide perance equal to or better than the systems presented in this standard. III. Use of This Standard. AWWA has no responsibility for the suitability or compatibility of the provisions of this standard to any intended application by any user. Accordingly, each user of this standard is responsible for determining that the standard’s provisions are suitable for and compatible with the user’s intended application. 1II.A. Purchaser Options and Alternatives. The following items should be included in the purchaser’s specifications 1. Standard used, that is, ANSUAWWA C218, Standard for Coating the Exterior of Aboveground Steel Water Pipelines and Fittings, of latest revision. Any exceptions to the standard that may be required. Diameter, length, and location of the pipeline. Affidavit of compliance, if required Sec. 6.3. Coating system to be supplied Sec. 4.2. Color, if special color is specified Sec. 4.2.2, 4.2.3, 4.2.4, 4.2.5, 4.2.6, 2. 3. 4. 5. 6. 4.2.8, 4.2.9, and 4.2.10. 7. 4.3.2.4. Verification of film thickness of the coating or coating system Sec. 8. Surface preparation Sec. 4.4. 9. Requirements for visual comparative standards for blast cleaning Sec. 4.4.2.1. “SSPC The Society for Protective Coatings, 40 24th St., Sixth Floor, Pittsburgh, PA 15222. xi Copyright American Water Works Association Provided by IHS under license with AWWA Not for ResaleNo reproduction or networking permitted without license from IHS --,--,,,,,,,--- 10. Application Sec. 4.5. 11. Coating of special pipe fittings and appurtenances Sec. 4.5.12. 12. Inspection Sec. 5.1. 13. Previously coated pipe Sec. 4.4.1.2. 14. Stacking Sec. 6.1.1. 1II.B. ModzJZcation to Standard. Any modification of the provisions, defini- tions, and terminology in this standard must be provided in the purchaser’s specifications. IV. Major Revisions. Major revisions made to the standard in this edition include the following 1. References were updated. 2. In Sec. 1.1.1, added that these coating systems are not intended for immersion service. V. Comments. If you have any comments or questions about this standard, please contact the AWWA Volunteer and Technical Support Group, FAX 303 795- 7603, or write to the group at 6666 West Quincy Avenue, Denver, CO 80235- 3098, or by e-mail at standardsawwa.org. xii Copyright American Water Works Association Provided by IHS under license with AWWA Not for ResaleNo reproduction or networking permitted without license from IHS --,--,,,,,,,--- 标准分享网 w w w .b z f x w .c o m 免费下载 ANSI/AWWA C218-O2 Revision of ANSI/AWWA C218-99 American Water Works Association A W A Standard Coating the Exterior of Aboveground Steel Water Pipelines and Fittings SECTION 1 GENERAL _ _ _ _ Sec. 1 . 1 Scope This standard describes nine coating systems designed to protect the exterior surfaces of steel pipelines and the associated fittings used by the water supply industry in aboveground locations. The coating systems described may not per or cost the same, but they are presented so that the appropriate coating system can be selected for the site-specific project requirements. 1.1.1 Conditions not covered in this standard. The coating systems described in this standard are not intended for underground applications or immersion service, nor are they intended for external pipe surfaces that will be in contact with potable water. 1.1.2 Maximum temperatures. The maximum service temperature of the coating systems listed in this standard is based on the maximum service temperature of potable water. Consult the coating manufacturer for conditions and limitations. 1 Copyright American Water Works Association Provided by IHS under license with AWWA Not for ResaleNo reproduction or networking permitted without license from IHS --,--,,,,,,,--- 2 AWWAC218-O2 Sec. 1.2 Purpose The purpose of this standard is to define the minimum requirements for coating the