1、AWWA Standard SM Sodium Tripolyphosphate Effective date: Oct. 1, 2017. First edition approved by AWWA Board of Directors June 25, 1978. This edition approved June 11, 2017. Approved by American National Standards Institute June 19, 2017. ANSI/AWWA B503-17 (Revision of ANSI/AWWA B503-11) Copyright 20
2、17 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 normally c
3、ontained 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 any produc
4、t 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 represen
5、t a consensus of the water industry 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 becom
6、es effective on the first day 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 Nati
7、onal 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 produc
8、ts, processes, or proce - dures not conforming to the standard. American National Standards are subject to periodic review, and users are cau- tioned to obtain the latest editions. Producers of goods made in conformity with an American National Standard are encouraged to state on their own responsib
9、ility 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
10、 ANSI 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 publication. 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. hours of work by your fellow water professionals. Revenue from the sales of this AWWA material supports o
12、ngoing product development. Unauthorized distribution, either electronic or photocopied, is illegal and hinders AWWAs mission to support the water community. This AWWA content is the product of thousands of ISBN-13, print: 978-1-62576-257-3 eISBN-13, electronic: 978-1-61300-444-9 DOI:http:/dx.doi.or
13、g/10.12999/AWWA.B503.17 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 purpo
14、ses, without the written permission of the publisher. Copyright 2017 by American Water Works Association Printed in USAiii Committee Personnel The AWWA Standards Committee on Scale and Corrosion-Control Chemicals, which reviewed and approved this standard, had the following personnel at the time of
15、approval: Robert A. Ryder, Chair General Interest Members E. Leung,* California State Water Board, Richmond, Calif. (AWWA) M.S. McFadden, HDR Engineering Inc., Denver, Colo. (AWWA) N.E. McTigue, EE write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098; or email at standardsawwa.o
16、rg. Copyright 2017 American Water Works Association. All Rights Reserved. This page intentionally blank.1 AWWA Standard ANSI/AWWA B503-17 (Revision of ANSI/AWWA B503-11) Sodium Tripolyphosphate SECTION 1: GENERAL Sec. 1.1 Scope This standard describes sodium tripolyphosphate for use in the treatment
17、 of potable water, wastewater, and reclaimed water. Sec. 1.2 Purpose The purpose of this standard is to provide purchasers, manufacturers, and suppliers with minimum requirements for sodium tripolyphosphate (mate- rial), including physical, chemical, sampling, packaging, shipping, and testing requir
18、ements. Sec. 1.3 Application This standard can be referenced in documents for purchasing and receiving sodium tripolyphosphate and can be used as a guide for testing the physical and chemical properties of sodium tripolyphosphate samples. The stipulations of this standard apply when this document ha
19、s been referenced and only to sodium tri- polyphosphate used in the treatment of potable water, wastewater, and reclaimed water. Copyright 2017 American Water Works Association. All Rights Reserved. 2 AWWA B503-17 SECTION 2: REFERENCES This standard references the following documents. In their lates
20、t editions, they form a part of this standard to the extent specified within the standard. In any case of conflict, the requirements of this standard shall prevail. APHA,* AWWA, and WEF Standard Methods for the Examination of Water and Wastewater. ASTM E11Standard Specification for Woven Wire Test S
21、ieve Cloth and Test Sieves. NSF /ANSI 60Drinking Water Treatment ChemicalsHealth Effects. SECTION 3: DEFINITIONS The following definitions shall apply in this standard: 1. Day: A day is defined as a 24-hour period. 2. Manufacturer: The party that manufactures, fabricates, or produces materials or pr
22、oducts. 3. Potable water: Water that is safe and satisfactory for drinking and cooking. 4. Purchaser: The person, company, or organization that purchases any materials or work to be performed. 5. Reclaimed water: Wastewater that becomes suitable for beneficial use as a result of treatment. 6. Sodium
23、 tripolyphosphate: A crystalline solid that is a soluble sodium poly- phosphate containing Na 2 O and P 2 O 5in a molar ratio of approximately 1.67 Na 2 O to 1.0 P 2 O 5 . Its formula is Na 5 P 3 O 10 . 7. Supplier: The party that supplies material or services. A supplier may or may not be the manuf
24、acturer. 8. Tamper-evident packaging: Packaging having one or more indicators or barriers to entry that if breached or missing, can reasonably be expected to provide * American Public Health Association, 800 I Street, NW, Washington, DC 20001. Water Environment Federation, 601 Wythe Street, Alexandr
25、ia, VA 22314. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. NSF International, 789 North Dixboro Road, Ann Arbor, MI 48105. American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036. Copyright 2017 American Water Works Association. All Rights Reserved.
