1、 ANSI/AWWA C950-13 (Revision of AWWA C950-07) AWWA Standard Effective date: April 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 Jan. 30, 2013. 6666 West Quincy Avenue Advocacy Denver, C
2、O 80235-3098 Communications T 800.926.7337 Conferences www.awwa.org Education and TrainingScience and TechnologySections The Authoritative Resource on Safe WaterFiberglass Pressure Pipe SM Copyright 2013 American Water Works Association. All Rights Reserved. ii AWWA Standard This document is an Amer
3、ican 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 that must be evaluated by
4、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. The use of AWWA standards i
5、s 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 satisfactory se
6、rvice. 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 Journal - American Water
7、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, the consumer, and the gener
8、al 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. Ameri- can National Standard
9、s 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 that the goods are produ
10、ced 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 revised or withdrawn at any t
11、ime. 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 American National Standards
12、 Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036; (212) 642-4900, or emailing infoansi.org. ISBN-13, print: 978-1-58321-916-4 eISBN-13, electronic: 978-1-61300-213-1 ISBN-10, print: 1-58321-916-1 eISBN-10, electronic: 1-61300-213-0 All rights reserved. No part of this publication ma
13、y 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 publisher. Copyright 2013 by Ame
14、rican Water Works Association Printed in USA Copyright 2013 American Water Works Association. All Rights Reserved. iii Committee Personnel The AWWA Subcommittee on Revision of C950, which developed this revision, had the following personnel at the time: Richard C. Turkopp, Chair S.D. Curran, Fibergl
15、ass Tank Jan. 22, 1995; June 17, 2001; and Jan. 21, 2007. This edition 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
16、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
17、ers (COSHEM). The American Water Works Association and the Association of State Drinking Water Administrators (ASDWA) joined later. * American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036. Copyright 2013 American Water Works Association. All Rights Reserved. vi
18、ii 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 evaluate the health effects of products and drinking water additi
19、ves from such products, state and local agencies may use various references, including 1. An advisory program formerly administered by USEPA, Office of Drinking Water, discontinued on Apr. 7, 1990. 2. Specific policies of the state or local agency. 3. Two standards developed under the direction of N
20、SF, NSF /ANSI 60, Drinking Water Treatment ChemicalsHealth Effects, and NSF/ANSI 61, Drinking Water System ComponentsHealth Effects. 4. Other references, including AWWA standards, Food Chemicals Codex, Water Chemicals Codex, and other standards considered appropriate by the state or local agency. Va
21、rious 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 jurisdiction. Accreditation of certi- fication organizations may vary from juri
22、sdiction 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 of an unspecified list of “unregulated contamin
23、ants” 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 C950 does not address additives requirements. Thus, users of this standard should consult
24、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 all parties offering to certify prod- ucts for contact with, or treatment of, drinking water. 3. Determine current i
25、nformation on product certification. * Persons outside the United States should contact the appropriate authority having 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 publi
26、cations available from National Academy of Sciences, 500 Fifth Street, N. W., Washington, DC 20001. Copyright 2013 American Water Works Association. All Rights Reserved. ix II. Special Issues. II.A. Nominal Metric Pipe Sizes, Dimensions, and Tolerances. Nominal metric pipe sizes, dimensions, and tol
27、erances were obtained from ISO and CEN product standards for fiberglass pipes. 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. III.A. Pur
28、chaser Options and Alternatives. The foll owing items should be covered by the purchaser: 1. Standard usedthat is, ANSI/AWWA C950, Fiberglass Pressure Pipe, of latest revision. 2. Specific service and installation considerations. 3. Lineal feet of each pressure and stiffness class and size. 4. Detai
29、ls of other federal, state or provincial, and local requirements (Sec. 4.4.1). 5. Pipe diameter size and series (Sec. 4.5.1). 6. Pressure classes (Sec. 4.6). 7. Stiffness classes (Sec. 4.7). 8. Whether plant inspection is required (Sec. 5.1.1). The purchaser may also specify the following: 1. Line l
30、ayout showing pressure zones, including applicable design and tran- sient pressures within zones and points of change between zones. 2. Cell classification (Sec. 4.3). 3. Standard laying lengths (Sec. 4.5.2). 4. Joint configuration (Sec. 4.9). III.B. Manufacturer Options and Alternatives. The follow
31、ing items should be provided by the manufacturer: 1. Nominal wall thickness. 2. Weight. 3. Total quantity of jointing materials and field allowances. 4. Cell classification (Sec. 4.3). 5. Stiffness class (Sec. 4.7). 6. Joint details (Sec. 4.9). When requested by the purchaser, it is understood the manufacturer will also sup- ply the following: 1. Special design calculations. 2. Special lengths (Sec. 4.5.2). Copyright 2013 American Water Works Association. All Rights Reserved.
