1、AWWA Standard SM CementMortar Lining for Ductile-Iron Pipe and Fittings Effective date: Oct. 1, 2016. First edition approved by AWWA Board of Directors June 28, 1985. This edition approved Jan. 16, 2016. Approved by American National Standards Institute June 17, 2016. ANSI/AWWA C104/A21.4-16 (Revisi
2、on of ANSI/AWWA C104/A21.4-13)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 administrative information normally contained in specifications.
3、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 constitute endorsement of any product or product type, nor does
4、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 standards are intended to represent a consensus of the water i
5、ndustry 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 Association. The action becomes effective on the first da
6、y 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 provisions. An American National Standard is intended as
7、 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 ap - proved the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedu
8、res 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 encour - aged to state on their own responsibility in advertising and pr
9、omotional 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 standard indicates completion of the ANSI approval process. Thi
10、s 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 information on all st
11、andards 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. ISBN-13, print: 978-1-62576-184-2 eISBN-13, electronic: 978-1-61300-393-0DOI: http:/dx.doi.org/10.12999/AWWA.C104.16 All rights rese
12、rved. 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 for review purposes, without the written permission of
13、the publisher. Copyright 2016 by American Water Works Association Printed in USA hours of work by your fellow water professionals. Revenue from the sales of this AWWA material supports ongoing product development. Unauthorized distribution, either electronic or photocopied, is illegal and hinders AW
14、WAs mission to support the water community. This AWWA content is the product of thousands ofiii Committee Personnel Subcommittee 4, Coatings and Linings, which reviewed and developed this revision, had the following personnel at the time: L. Gregg Horn, Chair General Interest Members D.H. Kroon, Cor
15、rpro Companies Inc., Houston, Texas (AWWA) S.M. Passarelli,* Standards Engineer Liaison, AWWA, Denver, Colo. (AWWA) J.R. Plattsmier, HDR Engineering Inc., Denver, Colo. (AWWA) P.A. Selig, Consultant, Vestavia, Ala. (AWWA) K.E. Wilson, Atkins, Tampa, Fla. (AWWA) Producer Members C. Comins, Custom Fab
16、 Inc., Orlando, Fla. (AWWA) J.H. Eddings, McWane Ductile, Phillipsburg, N.J. (AWWA) J.A. Fancher, American Cast Iron Pipe Company, Birmingham, Ala. (AWWA) M.D. Gaston, American Ductile Iron Pipe Company, Birmingham, Ala. (AWWA) L.G. Horn, Ductile Iron Pipe Research Association, Birmingham, Ala. (AWW
17、A) A.M. Horton, U.S. Pipe the option of using seal-coat materials other than asphaltic was deleted. * ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. xii 3. Other references, including AWWA standards, Food Chemicals Codex, Water Chemicals Codex,* and other standards considere
18、d appropriate by the state or local agency. Various certification organizations may be involved in certifying products in accor- dance with NSF/ANSI 61. Individual states or local agencies have authority to accept or accredit certification organizations within their jurisdictions. Accreditation of c
19、erti- fication organizations may vary 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
20、of an unspecified list of “unregulated 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 C104 does not address additives requirement
21、s. Thus, users of this standard should consult the appropriate state or local agency having jurisdiction 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 o
22、f, drinking water. 3. Determine current information on product certification. II. Special Issues. II.A. Use of Seal Coat. Cementmortar linings may be provided with or without a seal coat (Sec. 4.12.1). The purchaser of cementmortar-lined pipe or fittings for use with water that is corrosive to cemen
23、t, such as very soft water, should determine, by using the appropriate test, that a lining without a seal coat will not impart objectionable hardness or alkalinity to the water. The procedure outlined in Sec. 5.2.2.2, modified by the substitution of the water with which the pipe is to be used, is re
24、commended. The concentration of leachates increases with the aggressiveness of the water and its residual time in the pipe and is indirectly proportional to the diameter of the pipe. II.B. Lining of Pipelines in Place. This standard does not include provisions for cementmortar lining of pipelines in place. Field lining of pipes is addressed in ANSI/ AW WA C602. * Both publications available from National Academy of Sciences, 500 Fifth Street, NW, Washington, DC 20001.
