AWWA C702-2015 Cold-Water Meters-Compound Type《冷水表 混合式》.pdf

1、 AWWA Standard SM Cold-Water Meters Compound Type Effective date: Apr. 1, 2015. First edition approved by AWWA Board of Directors May 24, 1923. This edition approved Jan. 24, 2015. Approved by American National Standards Institute Oct. 16, 2014. ANSI/AWWA C702-15 (Revision of ANSI/AWWA C702-10) Copy

2、right 2015 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 administrative information no

3、rmally 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 constitute endorsement of an

4、y 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 standards are intended to

5、represent a consensus of the water supply industry that the product described will provide satisfactory service. When AWWA revises or withdraws this standard, an official notice of action will be placed in the Official Notice section of Journal - American Water Works Association. The action becomes

6、effective on the first day of the month fol- lowing 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 Nat

7、ional 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, purchasing, or using produ

8、cts, processes, or procedures not con- forming 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 encouraged to state on their own responsibil

9、ity 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 standard indicates completion of the A

10、NSI 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 ANSI approval. Purchasers of American National Standards may receive cu

11、rrent 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. ISBN-13, print: 978-1-62576-054-8 eISBN-13, electronic: 978-1-61300-316-9DOI: http:/dx.doi.org/10.12999/A

12、WWA.C702.15 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 for review purposes, without

13、 the written permission of the publisher. Copyright 2015 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

14、, is illegal and hinders AWWAs mission to support the water community. This AWWA content is the product of thousands of Copyright 2015 American Water Works Association. All Rights Reserved. iii Committee Personnel The AWWA Subcommittee on Compound and Fire-Service Meters, which developed this stan-

15、dard, had the following personnel at the time: Joe Alongi, Chair J. Alongi, Kansas City Water Services Department, Kansas City, Mo. (AWWA) M.J. Aragon, Denver Water, Denver, Colo. (AWWA) R.A. Barillas, Badger Meter, Milwaukee, Wis. (AWWA) M.C. Bowen, City of Columbus, Division of Water, Columbus, Oh

16、io (AWWA) D. Casper, Mueller Systems, Cleveland, S.C. (AWWA) G.H. De Jarlais, Badger Meter, Milwaukee, Wis. (AWWA) A. Dudley, Itron, West Union, S.C. (AWWA) D. Faber, Faber Jan. 28, 1978; June 22, 1986; June 18, 1992; Jan. 21, 2001; and Jan. 17, 2010. This edition was approved on Jan. 24, 2015. I.C.

17、 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 for direct and indirect drinking water additives. Other memb

18、ers of the original consortium included the Water Research Foundation (formerly AwwaRF) and the Conference of State Health and Environmental Managers (COSHEM). The * American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036. Copyright 2015 American Water Works Asso

19、ciation. All Rights Reserved. x 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 m

20、ay choose to impose requirements more stringent than those required by the state. To evaluate the health effects of products and drinking water additives from such products, state and local agencies may use various references, including 1. An advisory program formerly administered by USEPA, Office o

21、f Drinking Water, discontinued on Apr. 7, 1990. 2. Specific policies of the state or local agency. 3. Two standards developed under the direction of NSF: NSF/ANSI 60, Drinking Water Treatment ChemicalsHealth Effects, and NSF/ANSI 61, Drinking Water System ComponentsHealth Effects. 4. Other reference

22、s, including AWWA standards, Food Chemicals Codex, Water Chemicals Codex, and other standards considered 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 aut

23、hority to accept or accredit certification organizations within their jurisdictions. Accreditation of certi- 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

24、 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 testing guidelines (noncarcinogens) and risk characterization methodology (carcinogens). Use of Annex A procedures may not

25、 always be identical, depending on the certifier. In an alternative approach to inadvertent drinking water additives, some jurisdic- tions (including California, Louisiana, Maryland, and Vermont at the time of this writing) are calling for reduced lead limits for materials in contact with potable wa

26、ter. Various third-party certifiers have been assessing products against these lead content * Persons outside the United States should contact the appropriate authority having jurisdiction. NSF International, 789 North Dixboro Road, Ann Arbor, MI 48105. Both publications available from National Academy of Sciences, 500 Fifth Street, N. W., Washington, DC 20001. Copyright 2015 American Water Works Association. All Rights Reserved.