1、AWWA Standard SM Protective Interior Coatings for Valves and Hydrants Effective date: Aug. 1, 2017. First edition approved by AWWA Board of Directors Jan. 25, 1981. This edition approved Jan. 14, 2017. Approved by American National Standards Institute Feb. 28, 2017. ANSI/AWWA C550-17 (Revision of AN
2、SI/AWWA C550-13) 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 administ
3、rative 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 constit
4、ute 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. AWWA stand
5、ards 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 Water Works
6、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 scope and
7、 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
8、, purchasing, or using products, processes, or proce - dures not conforming to the standard. American National Standards are subject to periodic review, and users are cau- tioned to obtain the latest editions. Producers of goods made in conformity with an American National Standard are encouraged to
9、 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 this standar
10、d 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 Nati
11、onal 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. hours of work by your fellow water professionals. Revenue from the sales of
12、this AWWA material supports ongoing product development. Unauthorized distribution, either electronic or photocopied, is illegal and hinders AWWAs mission to support the water community. This AWWA content is the product of thousands of ISBN-13, print: 978-1-62576-231-3 eISBN-13, electronic: 978-1-61
13、300-429-6DOI:http:/dx.doi.org/10.12999/AWWA.C550.17 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
14、 quotations for review purposes, without the written permission of the publisher. Copyright 2017 by American Water Works Association Printed in USA Copyright 2017 American Water Works Association. All Rights Reserved. iii Committee Personnel The AWWA Standards Committee on Valves and Hydrants, which
15、 reviewed and approved this standard, had the following personnel at the time of approval: Jim Clevenger, Chair General Interest Members A. Ali, ADA Consulting, Surrey, B.C., Canada (AWWA) J. Clevenger, Dixon Engineering Inc., Albion, Ind. (AWWA) A. Fontana, Truesdail Laboratories Inc., Irvine, Cali
16、f. (AWWA) J. Hebenstreit, Underwriters Laboratories, Northbrook, Ill. (AWWA) C.H. Kirby, Lockwood, Andrews and for hydrants used for water supply service. The standard describes the material, application, and performance requirements for these interior coatings. The coating shall be either a liquid
17、or powder system and shall not contain coal tar. These coatings are applied to interior ferrous surfaces of valves and hydrants where corrosion protection is specified. I.B. History. An A WWA joint task group was formed on Jan. 1 5, 1971, to study protective coatings for valves and hydrants in respo
18、nse to a request from the Gate Valve and Swing Check Valve, Butterfly Valve, and Fire Hydrant Standards committees. The purpose of this task group was to assemble all of the available information on protective coatings for valves and hydrants and to prepare a report from this information. The AWWA S
19、tandards Committee on Protective Interior Coatings for Valves and Hydrants produced the first edition of ANSI/AWWA C550 in 1980. It was approved by the AWWA Board of Directors on Jan. 25, 1981. Subsequent editions were approved on Jan. 28, 1990; June 17, 2001; Jan. 16, 2005; and Jan. 20, 2013. This
20、edition of the standard was approved on Jan. 14, 2017. 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 certification program
21、for direct and indirect drinking water additives. Other members of the original consortium included the Water Research Foundation (formerly AwwaRF) and the Conference of State Health and Environmental Managers (COSHEM). The American Water Works Association (AWWA) and the Association of State Drinkin
22、g Water Administrators (ASDWA) joined later. In the United States, authority 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 * Am
23、erican National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036. NSF International, 789 North Dixboro Road, Ann Arbor, MI 48105. Persons outside the United States should contact the appropriate authority having jurisdiction. Copyright 2017 American Water Works Association.
24、 All Rights Reserved. viii effects of products and drinking water additives from such products, state, provincial, and local agencies may use various references, including 1. Specific policies of the state, provincial, or local agency. 2. Two standards developed under the direction of NSF: NSF/ANSI
25、60, Drinking Water Treatment ChemicalsHealth Effects, and NSF/ANSI 61, Drinking Water System ComponentsHealth Effects. 3. Other references, including AWWA standards, Food Chemicals Codex, Water Chemicals Codex, *and other standards considered appropriate by the state, provincial, or local agency. Va
26、rious certification organizations may be involved in certifying products in accor- dance with NSF/ANSI 61. Individual states, provinces, or local agencies have authority to accept or accredit certification organizations within their jurisdictions. Accredita- tion of certification organizations may v
27、ary from jurisdiction to jurisdiction. Annex A, “Toxicology Review 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 final maximum contaminant level (MCL). The MALs of an unspecified list of “unregul
28、ated contaminants” are based on toxicity testing guidelines (noncarcinogens) and risk characterization methodology (carcinogens). Use of Annex A procedures may not always be identical, depending on the certifier. ANSI/AWWA C550 does not address additives requirements. Users of this stan- dard should
29、 consult the appropriate state, provincial, or local agency having jurisdic- tion in order to 1. Determine additives requirements, including applicable standards. 2. Determine the status of certifications by parties offering to certify products for contact with, or treatment of, drinking water. 3. D
30、etermine current information on product certification. II. Special Issues. This standard has no applicable information for this section. 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
31、in the particular application being considered. III.A. Purchaser Options and Alternatives. The following items should be provided by the purchaser: * Both publications available from National Academy of Sciences, 500 Fifth Street, NW, Washington, DC 20001. Copyright 2017 American Water Works Associa
32、tion. All Rights Reserved. ix 1. Standard usedthat is, ANSI/AWWA C550, Protective Interior Coatings for Valves and Hydrants, of latest revision. 2. Details of any special service conditions such as salt water, acid, high tem- perature, wastewater, or reclaimed water must be communicated to the manuf
33、acturer or its agent (Sec. 1.1.1.3). 3. Details of other federal, state or provincial, and local requirements (Sec. 4.1). 4. Other coating material not specified in Sec. 4.1 that may be required for use in nonpotable water. 5. Any special surface preparation requirements (Sec. 4.2.1). 6. Holiday tes
34、ting, if required. Consult manufacturers for availability of spe- cial holiday tests (Sec. 5.1.3). 7. Affidavit or certificate of compliance, if required (Sec. 6.1). If holiday test- ing is required, purchasers should consult manufacturers for same or state this in their specification. III.B. Modifi
35、cation to Standard. Any modification of the provisions, definitions, or terminology in this standard must be provided by the purchaser. I V. Major Revisions. Major revisions to the standard in this edition include 1. Sec. 5.3, Basis for Rejection, was added. V. Comments. If you have any comments or
36、questions about this standard, please call AWWA Engineering and Technical Services at 303.794.7711, FAX at 303.795.7603; write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098; or email at standardsawwa.org. Copyright 2017 American Water Works Association. All Rights Reserved. Thi
37、s page intentionally blank. Copyright 2017 American Water Works Association. All Rights Reserved. 1 AWWA Standard ANSI/AWWA C550-17 (Revision of ANSI/AWWA C550-13) Protective Interior Coatings for Valves and Hydrants SECTION 1: GENERAL Sec. 1.1 Scope This standard describes protective interior coati
38、ngs for valves used for water supply, wastewater collection and treatment, and reclaimed water service having a pH range from 4 to 9; and for hydrants used for water supply service. The standard describes the material, application, and performance requirements for these inte- rior coatings. The coat
39、ing shall not contain coal tar. These coatings are applied for protection of ferrous surfaces of valves and hydrants. 1.1.1 Special coating conditions. 1.1.1.1 Exterior coatings. It is normal commercial practice for the coating applicator to apply this coating to the exterior surface of resilient se
40、at gate valves and hydrant components. It should be recognized that the performance require- ments for exterior service may vary from those specified for interior use because of differences in exposure conditions. 1.1.1.2 Internal hydrant coatings. This standard covers interior hydrant coatings in a
41、reas designed for constant contact with water supply. It does not cover internal coatings of dry-barrel hydrants on areas downstream of the main valve. 1.1.1.3 Special service conditions. The purchaser and the manufacturer shall agree on special coating requirements prior to manufacturing of product if Copyright 2017 American Water Works Association. All Rights Reserved.
