1、AWWA Standard SM Ammonium Sulfate Effective date: Nov. 1, 2016. First edition approved by AWWA Board of Directors July 15, 1949. This edition approved June 19, 2016. Approved by American National Standards Institute June 9, 2016. ANSI/AWWA B302-16 (Revision of ANSI/AWWA B302-10)ii AWWA Standard This
2、 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. The AWWA standards usually contain options that mus
3、t 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 AWWA test, certify, or approve any product. The use
4、 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 industry that the product described will provide sat
5、isfactory 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 day of the month following the month of Journal Ameri
6、can 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 a guide to aid the manufacturer, the consumer, and
7、 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 procedures not conforming to the standard. American Nation
8、al 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 promotional materials or on tags or labels that the g
9、oods 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. This American National Standard may be revised or with
10、drawn 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 standards by calling or writing the American National
11、 Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036; 212.642.4900; or emailing infoansi.org. ISBN-13, print: 978-1-62576-185-9 eISBN-13, electronic: 978-1-61300-394-7DOI: http:/dx.doi.org/10.12999/AWWA.B302.16 All rights reserved. No part of this publication may be reproduced
12、 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 2016 by American Water Wor
13、ks 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 AWWAs mission to support the water community. This AW
14、WA content is the product of thousands ofiii Committee Personnel The AWWA Standards Committee on Disinfectants, which developed and approved this standard, had the following personnel at the time of approval: K. Blake Stark, Chair General Interest Members K-K Au, FMC Global Peroxygens, Naperville, I
15、ll. (AWWA) M.P. Chaulk, CBCL Consulting Engineers, Halifax, N.S., Canada (AWWA) M.C. Graves, HDR Engineering, Austin, Texas (AWWA) S.J. Posavec,* Standards Group Liaison, AWWA, Denver, Colo. (AWWA) M. Sivaganesan, USEPA, Cincinnati, Ohio (AWWA) K.B. Stark, NSF International, Ann Arbor, Mich. (AWWA)
16、D.R. Wilkes,* Standards Council Liaison, OBrien however, some states require food-grade material for use in potable water treatment. Depending on its source, ammonium sulfate material has a tendency to cake and arch when stored in bulk. This behavior can be prevented by the addition of a small amoun
17、t of amorphous silica (0.060.1 percent), a type of fused silica. For safety precautions, refer to material safety data sheets (SDSs) available from the supplier or manufacturer. I.B. History. The first edition of this standard was prepared by the AWWA Water Purification Division. It was approved as
18、tentative on July 15, 1949, and made standard on May 15, 1953, with the designation of AWWA B400-53. The second edition was prepared by AWWA Committee 7400P and was approved on Jan. 27 , 1964, with the designation of AWWA B302-64. The third and fourth editions were prepared by the AWWA Standards Com
19、mittee on Taste and Odor Control Chemicals and were approved on Jan. 25, 1981, and June 22, 1986, respectively. Subsequent editions were prepared by the AWWA Standards Committee on Disinfectants and approved by the * American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York,
20、 NY 10036.viii Board of Directors on June 17, 1995, June 11, 2000, Jan. 16, 2005, and June 20, 2010. This edition was approved on June 19, 2016. I.C. Acceptance. In May 1985, the US Environmental Protection Agency (USEPA) entered into a cooperative agreement with a consortium led by NSF Internationa
21、l (NSF) to develop voluntary third-party consensus standards and a certification program for direct and indirect drinking water additives. Other members of the original consortium included the Water Research Foundation* (formerly AwwaRF) and the Conference of State Health and Environmental Managers
22、(COSHEM). The 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 may choose to impose
23、 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 two standards developed under the direction of NSF : NSF/ANSI 60, Drinking Water T
24、reatment ChemicalsHealth Effects, and NSF/ANSI 61, Drinking Water System ComponentsHealth Effects. Various certification organizations may be involved in certifying products in accor- dance with NSF/ANSI 60. Individual states or local agencies have authority to accept or accredit certification organ
25、izations within their jurisdictions. Accreditation of certi- fication organizations may vary from jurisdiction to jurisdiction. Annex A, “Toxicology Review and Evaluation Procedures,” to NSF/ANSI 60 does not stipulate a maximum allowable level (MAL) of a contaminant for substances not regulated by a
26、 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 always be identical, depending on the certifier
27、. ANSI/AWWA B302 addresses additives requirements in Sec. 4.3.4 of the standard. The transfer of contaminants from chemicals to processed water or to residual solids is becoming a problem of greater concern. The language in Sec. 4.3.4 is a recommenda- tion only for direct additives used in the treat
28、ment of potable water to be certified by an accredited certification organization in accordance with NSF/ANSI 60, Drinking Water Treatment ChemicalsHealth Effects. However, users of the standard may opt * Water Research Foundation, 6666 West Quincy Avenue, Denver, CO 80235. Persons outside the Unite
29、d States should contact the appropriate authority having jurisdiction. NSF International, 789 North Dixboro Road, Ann Arbor, MI 48105.ix to make this certification a requirement for the product. Users of this standard should also consult the appropriate state or local agency having jurisdiction in o
30、rder 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 of, drinking water. 3. Determine current information on product certification. II. Special Issues. This standa
31、rd has no applicable information for this section. 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. Purchaser Options and Alternati
32、ves. The following information should be provided by the purchaser: 1. Standard usedthat is, ANSI/AWWA B302, Ammonium Sulfate, of latest revision. 2. Quantity of ammonium sulfate required. 3. Whether compliance with NSF/ANSI 60, Drinking Water Treatment ChemicalsHealth Effects, is required. 4. Detai
33、ls of other federal, state or provincial, and local requirements (Section 4). 5. Whether the ammonium sulfate shall contain an anticaking agent (Sec. 4.1.2). 6. Whether optional markings will be required (Sec. 6.1.2). 7. Method of packaging and shipping required (Sec. 6.2). 8. An affidavit of compli
34、ance or certified analysis, or both, if required (Sec. 6.3). 9. Whether the purchaser will reject product from containers or packaging with missing or damaged seals. The purchaser may reject product from bulk containers or packages with missing or damaged seals unless the purchasers tests of represe
35、ntative samples, conducted in accordance with Sec. 5.2, demonstrate that the product meets the standard. Failure to meet the standard or the absence of, or irregularities in, seals may be sufficient cause to reject a shipment. 10. Whether alternative security measures have been adopted to replace or
36、 aug- ment the security measures set out in Sec. 6.2.3 and 6.2.4. III.B. Modification to Standard. Any modification of the provisions, definitions, or terminology in this standard must be provided by the purchaser. I V. Major Revisions. Major changes made to the standard in this revision include the
37、 following:x 1. Inclusion of new language in the Notice of Nonconformance (Sec. 5.3). 2. Inclusion of new language in Marking (Sec. 6.1). V. Comments. If you have any comments or questions about this standard, please call AWWA Engineering and Technical Services at 303.794.7711, FAX at 303.795.7603;
38、write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098; or email the group at standardsawwa.org.1 AWWA Standard ANSI/AWWA B302-16 (Revision of ANSI/AWWA B302-10) Ammonium Sulfate SECTION 1: GENERAL Sec. 1.1 Scope This standard describes ammonium sulfate, (NH 4 ) 2 SO 4 , for use i
39、n the treat- ment of potable water, wastewater, and reclaimed water. Sec. 1.2 Purpose The purpose of this standard is to provide the minimum requirements for ammonium sulfate, including physical, chemical, sampling, packaging, shipping, and testing requirements. Sec. 1.3 Application This standard ca
40、n be referenced in documents for purchasing and receiving ammonium sulfate and can be used as a guide for testing the physical and chemical properties of ammonium sulfate samples. The stipulations of this standard apply when this document has been referenced and then only to ammonium sulfate used in
41、 the treatment of potable water, wastewater, and reclaimed water.2 AWWA B302-16 SECTION 2: REFERENCES This standard references the following document. In its latest edition, it forms a part of this standard to the extent specified within the standard. In any case of conflict, the requirements of thi
42、s standard shall prevail. 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 prod
43、ucts. 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. Supplier
44、: Th e party that supplies material or services. A supplier may or may not be the manufacturer. 7. Tamper-evident packaging: Packaging having one or more indicators or barriers to entry that, if breached or missing, can reasonably be expected to provide visible evidence to the purchaser that tamperi
45、ng has occurred. The tamper-evident features of the packaging shall be designed to, and shall, remain intact when han- dled in a reasonable manner during manufacture, storage, shipment, and delivery to the purchaser. Properly constructed, labeled, and closed multiwall paper bags and fiber drums cons
46、titute effective forms of tamper-evident packaging. 8. Wastewater: A combination of the liquid and water-carried waste from residences, commercial buildings, industrial plants, and institutions, together with any groundwater, surface water, and stormwater that may be present. * NSF International, 789 North Dixboro Road, Ann Arbor, MI 48105. American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036.
