1、ANSI/AWWA C151/A21.51-09(Revision of ANSI/AWWA C151/A21.51-02)AW WA StandardEffective date: Sept. 1, 2009.First edition approved by AWWA Board of Directors 1965.This edition approved Jan. 25, 2009.Approved by American National Standards Institute July 10, 2009.6666 West Quincy Avenue Advocacy Denver
2、, CO 80235-3098 Communications T 800.926.7337 Conferences www.awwa.org Education and TrainingScience and TechnologySectionsSMThe Authoritative Resource on Safe WaterDuctile-Iron Pipe,Centrifugally CastCopyright 2009 American Water Works Association. All Rights Reserved.Copyright American Water Works
3、 Association Provided by IHS under license with AWWA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-iiAWWA StandardThis document is an American Water Works Association (AWWA) standard. It is not a specifi cation. AWWA standards describe minimum requirements and do
4、 not contain all of the engineering and administrative information normally contained in specifi -cations. The AWWA standards usually contain options that must be evaluated by the user of the standard. Until each optional feature is specifi ed by the user, the product or service is not fully defi ne
5、d. 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. This standard does not supersede or take precedence over or displace any applicable law, regulation,
6、 or codes of any governmental authority. 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 offi cial notice of action will be placed on the fi rst page of th
7、e classifi ed advertising section of Journal AWWA. The action becomes effective on the fi rst day of the month following the month of Journal AWWA publication of the offi cial notice.American National StandardAn American National Standard implies a consensus of those substantially concerned with its
8、 scope and provisions. An Ameri-can 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
9、, 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 encoura
10、ged to state on their own responsibility in advertis-ing and promotional materials or on tags or labels that the 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 sta
11、ndard 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 reaffi rm, revise, or withdraw this standard no later than fi ve years from the date of publication. Purchasers of America
12、n 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.All rights reserved. No part of this publication may be reproduced or transmitted in any form o
13、r 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 publisher.Copyright 2009 by American Water Works AssociationPrinted in USACo
14、pyright 2009 American Water Works Association. All Rights Reserved.Copyright American Water Works Association Provided by IHS under license with AWWA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-iiiCommittee PersonnelSubcommittee No. 1, Pipe, which reviewed this
15、 standard, had the following personnel at the time:Maury D. Gaston, ChairRichard W. Bonds, Vice-ChairGeneral Interest MembersM.B. Horsley, Black however, it continues to maintain its representation on the AWWA Committee A21.Th e present scope of AWWA Committee A21 activity is the development of stan
16、-dards and manuals addressing ductile-iron pressure pipe for water and other liquids, and ductile-iron and gray-iron fi ttings for use with such pipe. Th ese standards and manuals include design, dimensions, materials, coatings, linings, joints, accessories, and methods of inspection and testing.Th
17、e work of AWWA Committee A21 is conducted by subcommittees. Th e scope of Subcommittee 1, Pipe, includes the periodic review of current Committee A21 ForewordCopyright 2009 American Water Works Association. All Rights Reserved.Copyright American Water Works Association Provided by IHS under license
18、with AWWA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-xstandards for pipe, the preparation of revisions and new standards when needed, and other matters pertaining to pipe standards.Th e fi rst edition of ANSI/AWWA C151/A21.51, Standard for Ductile-Iron Pipe fo
19、r Water and Other Liquids, was issued in 1965, and revisions were issued in 1971, 1976, 1981, 1986, 1991, 1995, and 2002. Subcommittee 1 reviewed the 2002 edition and submitted a proposed revision to AWWA Committee A21. Th is edition was approved by the AWWA Board of Directors on Jan. 25, 2009.I.C.
20、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 certifi cation program for direct and indirect drinking water additives. Other memb
21、ers of the original consortium included the Water Research Foundation and the Conference of State Health and Environmental Managers (COSHEM). Th e American Water Works Association (AWWA) and the Association of State Drinking Water Administrators (ASDWA) joined later.In the United States, authority t
22、o 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 e ects of products and drinking water additives from such products, state and loca
23、l agencies may use various references, including1. An advisory program formerly administered by USEPA, O ce of Drinking Water, discontinued on Apr. 7, 1990.2. Specifi c policies of the state or local agency.3. Two standards developed under the direction of NSF, NSF/ANSI60, Drinking Water Treatment C
24、hemicalsHealth E ects, and NSF/ANSI 61, Drink ing Water System ComponentsHealth E ects.4. Other references, including AWWA standards, Food Chemicals Codex, Water Chemicals Codex,and other standards considered appropriate by the state or local agency.Various certifi cation organizations may be involv
25、ed in certifying products in accor-dance with NSF/ANSI 61. Individual states or local agencies have authority to accept * Persons outside the United States should contact the appropriate authority having jurisdiction. NSF International, 789 N. Dixboro Road, Ann Arbor, MI 48105. American National Sta
26、ndards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036. Both publications available from National Academy of Sciences, 500 Fifth Street, NW, Washington, DC 20001.Copyright 2009 American Water Works Association. All Rights Reserved.Copyright American Water Works Association Provided
27、by IHS under license with AWWA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-xior accredit certifi cation organizations within their jurisdiction. Accreditation of certi-fi cation organizations may vary from jurisdiction to jurisdiction.Annex A, “Toxicology Revie
28、w 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 fi nal maximum contaminant level (MCL). Th e MALs of an unspecifi ed list of “unregulated contaminants” are based on toxicity testing guidelines (n
29、oncarcinogens) and risk characterization methodology (carcinogens). Use of Annex A procedures may not always be identical, depending on the certifi er.ANSI/AWWA C151 does not address additives requirements. Th us, users of this standard should consult the appropriate state or local agency having jur
30、isdiction in order to1. Determine additives requirements, including applicable standards.2. Determine the status of certifi cations by parties o ering to certify products for contact with, or treatment of, drinking water.3. Determine current information on product certifi cation.II. Special Issues.I
31、I.A. Advisory Information on Product Application. Unless otherwise provided by the purchaser, pipe and accessories shall comply with this standard. Pipe and accessories not complying with this standard shall be replaced by the supplier at the agreed point of delivery. Th e supplier shall not be liab
32、le for shortages or damaged pipe after the pipe is accepted at the agreed point of delivery, except as recorded on the delivery receipt or similar document by the carriers agent.III. Use of Th is Standard. It is the responsibility of the user of an AWWA standard to determine that the products descri
33、bed in that standard are suitable for use in the particular application being considered. III.A. Purchaser Options and Alternatives. Th e following items should be cov-ered by the purchaser:1. Standard usedthat is, ANSI/AWWA C151, Ductile-Iron Pipe, Centrifu-gally Cast, of latest revision.2. Whether
34、 compliance with NSF/ANSI 61, Drinking Water System ComponentsHealth E ects, is required.3. Size, joint type, thickness or class, and laying length (see tables).4. Details of other federal, state or provincial, and local requirements (Sec. 4.1).5. a. Special joints (Sec. 4.3.1).b. Specifying ductile
35、-iron gland, if required (Sec. 4.3.1).Copyright 2009 American Water Works Association. All Rights Reserved.Copyright American Water Works Association Provided by IHS under license with AWWA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-xii6. a. Elimination of out
36、side coating (Sec. 4.4.1).b. Elimination of cementmortar lining (Sec. 4.4.2). Experience has indi-cated that asphaltic inside coating is not complete protection against loss in pipe capacity caused by tuberculation. Cementmortar linings are recommended for most waters.c. Special coatings and linings
37、 (Sec. 4.4.3).7. Special marking on pipe (Sec. 4.7).8. Certifi cation by manufacturer (Sec. 5.1.1).9. Inspection by purchaser (Sec. 5.1.2).10. Orientation of impact-test specimen cut from pipe wall (Sec. 5.2.2.2).11. Additional tests (Sec. 5.5).III.B. Modifi cation to Standard. Any modifi cation to
38、the provisions, defi ni-tions, or terminology in this standard must be provided by the purchaser.IV. Major Revisions. Major revisions made to the standard in this edition include the following:1. Scope, purpose, and application of standard were expanded to include wastewater and reclaimed water syst
39、ems.2. Defi nitions for asphaltic, reclaimed water, and wastewater were added in Section 3.3. A section for material requirements was added (Sec. 4.1).4. Sec. 4.4.3 on special coatings and linings was revised to remove reference to one specifi c asphaltic material lining.5. Notice of nonconformance
40、was added as a requirement in Section 6, Delivery.6. A section on a davit of compliance was added (Sec. 6.2).V. Comments. If you have any comments or questions about this standard, please call the AWWA Volunteer and Technical Support Group at 303.794.7711, FAX at 303.795.7603, write to the group at
41、6666 West Quincy Avenue, Denver, CO 80235-3098, or e-mail at standardsawwa.org.Copyright 2009 American Water Works Association. All Rights Reserved.Copyright American Water Works Association Provided by IHS under license with AWWA Not for ResaleNo reproduction or networking permitted without license
42、 from IHS-,-,-AW WA Standard1ANSI/AWWA C151/A21.51-09(Revision of ANSI/AWWA C151/A21.51-02)Ductile-Iron Pipe, Centrifugally CastSECTION 1: GENERALSec. 1.1 ScopeTh is standard describes 3-in. through 64-in. (76-mm*through 1,600-mm) ductile-iron pipe, centrifugally cast, for water, wastewater, and rec
43、laimed water systems with push-on joints or mechanical joints. Requirements for pipe according to this standard are discussed in the text and are shown in Tables 1 through 7 and Figures 1, 2, and 3. Th is standard may be used for pipe with other types of joints as may be agreed on at the time of pur
44、chase.Sec. 1.2 PurposeTh e purpose of this standard is to provide the minimum requirements for ductile-iron pipe, centrifugally cast, for water, wastewater, and reclaimed water systems.Sec. 1.3 ApplicationTh is standard can be referenced in specifi cations for ductile-iron pipe, centrifu-gally cast,
45、 for water, wastewater, and reclaimed water systems. Th e stipula tions of this standard apply when this document has been referenced and then only to ductile-iron pipe, centrifugally cast, for water, wastewater, and reclaimed water systems.* Metric conversions given in this standard are direct conv
46、ersions of US customary units and are not those specifi ed in International Organization for Standardization (ISO) standards.Copyright 2009 American Water Works Association. All Rights Reserved.Copyright American Water Works Association Provided by IHS under license with AWWA Not for ResaleNo reprod
47、uction or networking permitted without license from IHS-,-,-2 AWWA C151-09SECTION 2: REFERENCESTh is standard references the following documents. In their latest editions, these documents form a part of this standard to the extent specifi ed within the standard. In any case of confl ict, the require
48、ments of this standard shall prevail.AASHTO*T-99Standard Method of Test for the Moisture-Density Rela-tions of Soils Using a 5.5 lb (2.5 kg) Rammer and a 12 in. (305 mm) Drop.ANSI/AWWA C104/A21.4CementMortar Lining for Ductile-Iron Pipe and Fittings.ANSI/AWWA C111/A21.11Rubber-Gasket Joints for Duct
49、ile-Iron Pres-sure Pipe and Fittings.ANSI/AWWA C150/A21.50Th ickness Design of Ductile-Iron Pipe.ANSI/AWWA C600Installation of Ductile-Iron Water Mains and Th eir Appurtenances.ANSI/AWWA C800Underground Service Line Valves and Fittings.ASTMD2487Standard Classifi cation of Soils for Engineering Purposes (Unifi ed Soil Classifi cation System).ASTM D
