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.iiAWWA StandardThis document i
3、s an American Water Works Association (AWWA) standard. It is not a specifi cation. 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 that must be eva
4、luated by the user of the standard. Until each optional feature is specifi ed by the user, the product or service is not fully defi ned. 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
5、 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 will provide sat
6、isfactory service. When AWWA revises or withdraws this standard, an offi cial notice of action will be placed on the fi rst page of the 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
7、offi cial notice.American National StandardAn American National Standard implies a consensus of those substantially concerned with its 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 Americ
8、an 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. American National Standards are subject to periodic review, and u
9、sers 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 advertis-ing and promotional materials or on tags or labels that the goods are produced in conformity with particular Amer
10、ican 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
11、be taken to reaffi rm, revise, or withdraw this standard no later than fi ve years from the date of publication. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute, 25 West 43rd Street, Fourth Flo
12、or, New York, NY 10036; (212) 642-4900.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 quotations f
13、or review purposes, without the written permission of the publisher.Copyright 2009 by American Water Works AssociationPrinted in USACopyright 2009 American Water Works Association. All Rights Reserved.iiiCommittee PersonnelSubcommittee No. 1, Pipe, which reviewed this standard, had the following per
14、sonnel 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-dards and manuals addressing du
15、ctile-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 e work of AWWA Committee A21 is
16、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.xstandards for pipe, the preparation of revisions and new standards when needed, and other matters pertai
17、ning to pipe standards.Th e fi rst edition of ANSI/AWWA C151/A21.51, Standard for Ductile-Iron Pipe for 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 t
18、o AWWA Committee A21. Th is edition was approved by the AWWA Board of Directors on Jan. 25, 2009.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 consens
19、us standards and a certifi cation program for direct and indirect drinking water additives. Other members 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 Ass
20、ociation 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 impose requirements more stringent than those required by the state. To
21、evaluate the health e ects of products and drinking water additives from such products, state and local 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 loca
22、l agency.3. Two standards developed under the direction of NSF, NSF/ANSI60, Drinking Water Treatment ChemicalsHealth 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
23、considered appropriate by the state or local agency.Various certifi cation organizations may be involved 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 h
24、aving jurisdiction. NSF International, 789 N. Dixboro Road, Ann Arbor, MI 48105. American National Standards 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 Amer
25、ican Water Works Association. All Rights Reserved.xior accredit certifi cation organizations within their jurisdiction. Accreditation of certi-fi cation organizations may vary from jurisdiction to jurisdiction.Annex A, “Toxicology Review and Evaluation Procedures,” to NSF/ANSI 61 does not stipulate
26、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 (noncarcinogens) and risk characterization methodology (carcinogen
27、s). 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 jurisdiction in order to1. Determine additives requirements, includ
28、ing 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.II.A. Advisory Information on Product Application. Unless otherwi
29、se 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 liable for shortages or damaged pipe after the pipe is accepted at t
30、he 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 described in that standard are suitable for use in the particular appl
31、ication 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 compliance with NSF/ANSI 61, Drinking Water System ComponentsHe
32、alth 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-iron gland, if required (Sec. 4.3.1).Copyright 2009 American Wa
33、ter Works Association. All Rights Reserved.xii6. a. Elimination of outside 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 l
34、inings are recommended for most waters.c. Special coatings and linings (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 te
35、sts (Sec. 5.5).III.B. Modifi cation to Standard. Any modifi cation to 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
36、 standard were expanded to include wastewater and reclaimed water systems.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 t
37、o one specifi c asphaltic material lining.5. Notice of nonconformance 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 Supp
38、ort Group at 303.794.7711, FAX at 303.795.7603, write to the group at 6666 West Quincy Avenue, Denver, CO 80235-3098, or e-mail at standardsawwa.org.Copyright 2009 American Water Works Association. All Rights Reserved.AW WA Standard1ANSI/AWWA C151/A21.51-09(Revision of ANSI/AWWA C151/A21.51-02)Ducti
39、le-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 reclaimed water systems with push-on joints or mechanical joints. Requirements for pipe according t
40、o 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 purchase.Sec. 1.2 PurposeTh e purpose of this standard is to provide the minimum requirements for d
41、uctile-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, for water, wastewater, and reclaimed water systems. Th e stipula tions of this standard apply w
42、hen 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 conversions of US customary units and are not those specifi ed in International Organization for Sta
43、ndardization (ISO) standards.Copyright 2009 American Water Works Association. All Rights Reserved.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.
44、 In any case of confl ict, the requirements 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 C1
45、11/A21.11Rubber-Gasket Joints for Ductile-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
46、 cation of Soils for Engineering Purposes (Unifi ed Soil Classifi cation System).ASTM D3282Standard Classifi cation of Soils and Soil-Aggregate Mix-tures for Highway Construction Purposes.ASTM E8Standard Test Methods for Tension Testing of Metallic Materials.ASTM E23Standard Test Methods for Notched
47、 Bar Impact Testing of Metallic Materials.SECTION 3: DEFINITIONSTh e following defi nitions shall apply in this standard:1. Accessory: A component of a pipe joint, such as gasket, bolt, gland, lubricant, etc.2. Asphaltic: An asphalt cutback, asphalt emulsion, modifi ed asphalt, or a hybrid asphalt.*
48、 American Association of State Highway and Transportation O cials, 444 N. Capitol Street, NW, Suite 249, Washington, DC 20001. American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428.Copyrigh
49、t 2009 American Water Works Association. All Rights Reserved.DUCTILE-IRON PIPE, CENTRIFUGALLY CAST 33. Bell: Th e fl ared end of a pipe into which a spigot end is inserted.4. Ductile iron: A cast ferrous material in which a major part of the carbon content occurs as free graphite in a substantially nodular or spheroidal form.5. Lot: A batch or group of pipe that is statistically similar because of time of manufacture, or chemical, mechanical, or thermal processing.6. Manufacturer: Th e party that manufactures, fabricates, or pro-duces mat
