1、 ANSI/AWWA C550-13 (Revision of AWWA C550-05) AWWA Standard Effective date: May 1, 2013. First edition approved by AWWA Board of Directors Jan. 25, 1981. This edition approved Jan. 20, 2013. Approved by American National Standards Institute Feb 25, 2013. 6666 West Quincy Avenue Advocacy Denver, CO 8
2、0235-3098 Communications T 800.926.7337 Conferences www.awwa.org Education and TrainingScience and TechnologySections The Authoritative Resource on Safe WaterProtective Interior Coatings for Valves and Hydrants SM Copyright 2013 American Water Works Association. All Rights Reserved. ii AWWA Standard
3、 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 information normally contained in specifi- cations. The AWWA standards usually contain options t
4、hat 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 publication of a standard does not constitute endorsement of any product or product type, nor does AWWA test, certify, or approve any product. Th
5、e 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 represent a consensus of the water supply industry that the product described wil
6、l provide satisfactory service. 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 Association. The action becomes effective on the first day of the month following the month of
7、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 provisions. An American National Standard is intended as a guide to aid the manufacturer, th
8、e 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 conforming to the standard. Ame
9、ri- can 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 encouraged to state on their own responsibility in advertising and promotional materials or on tags or labels
10、 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 standard indicates completion of the ANSI approval process. This American National Standard may be revi
11、sed 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 ANSI approval. Purchasers of American National Standards may receive current information on all standards by calling or writ- ing the Am
12、erican National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036; (212) 642-4900, or emailing infoansi.org. ISBN-13, print: 978-1-58321-934-8 eISBN-13, electronic: 978-1-61300-227-8 ISBN-10, print: 1-58321-934-X eISBN-10, electronic: 1-61300-227-0 All rights reserved. No pa
13、rt 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 quotations for review purposes, without the written permission of the publish
14、er. Copyright 2013 by American Water Works Association Printed in USA Copyright 2013 American Water Works Association. All Rights Reserved. iii Committee Personnel The AWWA Standards Committee on Valves and Hydrants, which reviewed and approved this standard, had the following personnel at the time
15、of approval: Amzad Ali, Chair General Interest Members A. Ali, ADA Consulting, Surrey, B.C., Canada (AWWA) M. Korsch, HMK Tech Services Ltd., Halfmoon Bay, B.C., Canada (AWWA) G.E. Laverick, Underwriters Laboratories, Northbrook, Ill. (AWWA) S.C. Macleod,* Underwriters Laboratories, Melville, N.Y. (
16、AWWA) P.I. McGrath Jr., Birmingham, Ala. (AWWA) K.C. Morgan, Standards Council Liaison, City of Phoenix Water Services, Phoenix, Ariz. (AWWA) B.G. Mui, Alvord Burdick and for hydrants used for water supply service. The standard describes the material, application, and performance requirements for th
17、ese interior coatings. The coating shall be either a liquid 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, t
18、o study protective coatings for valves and hydrants in response 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 hydran
19、ts and to prepare a report from this information. The AWWA Standards 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,
20、1990; June 17, 2001; and Jan. 16, 2005. This edition of the standard was approved on Jan. 20, 2013. 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 con
21、sensus standards and a certification program for direct and indirect drinking water additives. Other members of the original consortium included the American Water Works Association Research Foundation (AwwaRF, now Water Research Foundation) and the Conference of State Health and Environmental Manag
22、ers (COSHEM). The American Water Works Association (AWWA) and the Association of State Drinking 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 im
23、pose * American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036. NSF International, 789 N. Dixboro Road, Ann Arbor, MI 48105. Persons outside the United States should contact the appropriate authority having jurisdiction. Copyright 2013 American Water Works Associ
24、ation. All Rights Reserved. viii requirements more stringent than those required by the state. To evaluate the health effects of products and drinking water additives from such products, state, provincial, and local agencies may use various references, including 1. An advisory program formerly admin
25、istered by USEPA, Office of Drinking Water, discontinued on Apr. 7, 1990. 2. Specific policies of the state, provincial, or local agency. 3. Two standards developed under the direction of NSF, NSF/ANSI Standard 60, Drinking Water Treatment ChemicalsHealth Effects, and NSF/ANSI Standard 61, Drinking
26、Water System ComponentsHealth Effects. 4. Other references, including AWWA standards, Food Chemicals Codex, Water Chemicals Codex,* and other standards considered appropriate by the state, provincial, or local agency. Various certification organizations may be involved in certifying products in acco
27、r- dance with NSF/ANSI Standard 61. Individual states, provinces, or local agencies have authority to accept or accredit certification organizations within their jurisdiction. Accreditation of certification organizations may vary from jurisdiction to jurisdiction. Annex A, “Toxicology Review and Eva
28、luation Procedures,” to NSF/ANSI Stan- dard 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 “unregulated contaminants” are based on toxicity test- ing guidelines (
29、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 consult the appropriate state, provincial, or local agency h
30、aving 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. Determine current information on product certification. II. Sp
31、ecial 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 in the particular application being considered. * Both public
32、ations available from National Academy of Sciences, 500 Fifth Street, NW, Washington, DC 20001. Copyright 2013 American Water Works Association. All Rights Reserved. ix III.A. Purchaser Options and Alternatives. The following items should be provided by the purchaser. 1. Standard usedthat is, ANSI/A
33、WWA 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 manufacturer or its agent (Sec. 1.1.1.3). 3. Details of other fede
34、ral, 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 testing, if required. Consult manufacturers for availability of
35、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. Modification to Standard. Any modification of the provisions, defin
36、itions, 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. The scope of the standard has been expanded to include coatings for valves used for wastewater and reclaimed water (Sec. 1.1), and definitions f
37、or those terms have been added (Sec. 3.12 and 3.13). 2. A definition for holiday has been added (Sec. 3.6). 3. The sections on inspection (former Sec. 5.1) and on shipping and for hydrants used for water supply service. The standard describes the material, application, and performance requirements f
38、or these inte- rior coatings. The coating 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 t
39、o the exterior surface of resilient seat 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
40、 covers interior hydrant coatings in areas 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 2013 American Water Works Association. All Rights Reserved.
