1、NSF International Standard / American National StandardNSF/ANSI 46 - 2017 Evaluation of Components and Devices Used in WastewaterTreatment Systems NSF International, an independent, not-for-profit, non-governmental organization, is dedicated to being the leading global provider of public health and
2、safety-based risk management solutions while serving the interests of all stakeholders. This Standard is subject to revision. Contact NSF to confirm this revision is current. Users of this Standard may request clarifications and interpretations, or propose revisions by contacting: Chair, Joint Commi
3、ttee on Wastewater Technology c/o NSF International 789 North Dixboro Road, P.O. Box 130140 Ann Arbor, MI 48113-0140, USA Phone: (734) 769-8010 Telex: 753215 NSF INTL FAX: (734) 769-0109 E-mail: infonsf.org Web: http:/www.nsf.orgi NSF/ANSI 462017 NSF International Standard/ American National Standar
4、d for Wastewater Technology Evaluation of components and devices used in wastewater treatment systems Standard Developer NSF International NSF International Designated as an ANSI Standard March 12, 2017 American National Standards Instituteii Prepared by The NSF Joint Committee on Wastewater Technol
5、ogy Recommended for adoption by The NSF Council of Public Health Consultants Adopted by The NSF Board of Directors November 1997 Revised May 2000 Revised April 2010 Revised May 2002 Revised November 2010 Revised October 2004 Revised December 2012 Revised September 2005 Revised December 2013 Revised
6、January 2007 Revised November 2014 Addendum February 2007 Revised October 2015 Revised February 2009 Revised August 2017 Published by NSF International PO Box 130140, Ann Arbor, Michigan 48113-0140, USA For ordering copies or for making inquiries with regard to this Standard, please reference the de
7、signation “NSF/ANSI 46-2017.” Copyright 2017 NSF International Previous editions 2016, 2014, 2013, 2012, 2011, 2010, 2009, 2007, 2005, 2004, 2002, 2000, 1997 Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, i
8、ncluding photocopying and microfilm, without permission in writing from NSF International. Printed in the United States of America.iii Disclaimers1 NSF International (NSF), in performing its functions in accordance with its objectives, does not assume or undertake to discharge any responsibility of
9、the manufacturer or any other party. The opinions and findings of NSF represent its professional judgment. NSF shall not be responsible to anyone for the use of or reliance upon this Standard by anyone. NSF shall not incur any obligation or liability for damages, including consequential damages, ari
10、sing out of or in connection with the use, interpretation of, or reliance upon this Standard. NSF Standards provide basic criteria to promote sanitation and protection of the public health. Provisions for mechanical and electrical safety have not been included in this Standard because governmental a
11、gencies or other national standards-setting organizations provide safety requirements. Participation in NSFs Standards development activities by regulatory agency representatives (federal, local, state) shall not constitute their agencys endorsement of NSF or any of its Standards. Preference is give
12、n to the use of performance criteria measurable by examination or testing in NSF Standards development when such performance criteria may reasonably be used in lieu of design, materials, or construction criteria. The illustrations, if provided, are intended to assist in understanding their adjacent
13、standard requirements. However, the illustrations may not include all requirements for a specific product or unit, nor do they show the only method of fabricating such arrangements. Such partial drawings shall not be used to justify improper or incomplete design and construction. Unless otherwise re
14、ferenced, the Annexes are not considered an integral part of NSF Standards. The annexes are provided as general guidelines to the manufacturer, regulatory agency, user, or certifying organization. 1 The information contained in this Disclaimer is not part of this American National Standard (ANS) and
15、 has not been processed in accordance with ANSIs requirements for an ANS. Therefore, this Disclaimer may contain material that has not been subjected to public review or a consensus process. In addition, it does not contain requirements necessary for conformance to the Standard. This page is intenti
16、onally left blank.v Contents 1 General . 1 1.1 Purpose 1 1.2 Scope . 1 1.3 Alternate materials, design, and construction 1 2 Normative references . 1 3 Definitions . 2 4 Materials . 3 4.1 Dissimilar metals 3 4.2 Welding 3 5 Design and construction . 3 5.1 Serviceability 4 5.2 Electrical equipment .
17、4 5.3 Mechanical components and systems . 4 5.4 Data plate . 4 6 Product literature 4 6.1 Installation manual . 4 6.2 Operation and maintenance manual 5 6.3 Troubleshooting and repair manual . 5 6.4 Energy requirements 5 6.5 Chemical requirements 5 7 Performance testing and evaluation . 5 8 Final re
18、port 6 9 Grinder pumps and related components 6 9.1 Scope . 6 9.2 Model series classification . 6 9.3 Definitions 6 9.4 Performance testing and evaluation 7 9.5 Performance criteria for grinder pumps not utilizing wobble pump stators 10 9.6 Design and construction. 11 10 Filtration devices for resid
19、ential gravity flow septic tank systems 12 10.1 Scope . 12 10.2 Model series classification . 12 10.3 Definitions 12 10.4 Performance testing and evaluation of septic tank filters 12 10.5 Performance requirements for septic tank filters . 16 10.6 Data plate 17 10.7 Installation manual . 17 10.8 Oper
20、ation and maintenance manual . 17 10.9 Final report. 17 11 Chlorination devices . 17 11.1 Scope . 17 11.2 Model series classification . 18 11.3 Definitions 18 11.4 Design and construction 18 11.5 Product literature . 20 11.6 Performance testing and evaluation 21 11.7 Performance testing and evaluati
21、on for positive displacement pumps . 24 11.8 Performance testing and evaluation for chlorination devices intended to operate under increased hydraulic pressure 25 11.9 Final report. 26 12 Ultraviolet (UV) disinfection devices . 26 vi 12.1 Scope . 26 12.2 Model series classification . 26 12.3 Flow de
22、livery 26 12.4 Definitions 26 12.5 Design and construction 27 12.6 Product literature . 28 12.7 Performance testing and evaluation 30 12.8 Performance testing and evaluation for UV disinfection devices intended to operate under increased hydraulic pressure 33 12.9 Final report. 33 13 Ozone generatio
23、n devices 34 13.1 Scope . 34 13.2 Model series classification . 34 13.3 Design and construction 34 13.3.1 Noise 34 13.4 Valve and component identification . 35 13.5 Product literature . 36 13.6 Performance testing and evaluation 36 Annex A Key elements of a certification program for components and d
24、evices used in wastewater treatment systems . 41 Annex B Sample limited warranty . 45 Annex C Definitions of analytical parameters . 47 Annex D Test methods for the evaluation of wastewater disinfection treatment devices . 51 vii Foreword2 The purpose of this Standard is to establish minimum materia
25、ls, design and construction, and performance testing and evaluation requirements for components and devices used in wastewater treatment systems. Minimum literature requirements to be supplied by manufacturers to authorized representatives and owners are also specified. This edition of the Standard
26、includes the following revisions: Issue 28 Section 10.9 was revised to require filter manufacturers to report and publish the measured amount of cross-sectional orifice area that exists above the normal liquid operating level. This Standard was developed by the NSF Joint Committee on Wastewater Tech
27、nology using the consensus process described by the American National Standards Institute. Suggestions for improvement of this Standard are welcome. This Standard is maintained on a Continuous Maintenance schedule and can be opened for comment at any time. Comments should be sent to Chair, Joint Com
28、mittee on Wastewater Technology at standardsnsf.org, or c/o NSF International, Standards Department, P.O. Box 130140, Ann Arbor, Michigan 48113-0140, USA. 2 The information contained in this Foreword is not part of this American National Standard (ANS) and has not been processed in accordance with A
29、NSIs requirements for an ANS. Therefore, this Foreword may contain material that has not been subjected to public review or a consensus process. In addition, it does not contain requirements necessary for conformance to the Standard. This page is intentionally left blank.1 2017 NSF NSF/ANSI 46 2017
30、NSF/ANSI Standard for Wastewater Technology Evaluation of components and devices used in wastewater treatment systems 1 General 1.1 Purpose The purpose of this Standard is to establish minimum materials, design and construction, and performance requirements for components and devices used in the han
31、dling, treating, recycling, reusing, or disposal of wastewater. This Standard is intended to protect public health and the environment as well as to minimize nuisance factors. 1.2 Scope This Standard is intended for use with components and devices not covered by other NSF wastewater standards. Compo
32、nents and devices covered by this Standard are intended for use with greywater or blackwater or both. Management methods for the end-products of these components and devices are not addressed in this Standard. This Standard shall in no way restrict new system designs, provided that such designs meet
33、 the minimum specifications described herein. All devices and components meeting the scope of this Standard shall comply with all of the requirements described in 1 through 8. In addition, devices and components shall comply with the applicable subsequent section(s) contained in this Standard. Where
34、 subsequent sections of the Standard include requirements that overlap with those found in 1 through 8, the requirements of both sections shall be met unless otherwise specified in the requirements of the subsequent section. 1.3 Alternate materials, design, and construction While specific materials,
35、 designs, and construction may be stipulated in this Standard, devices that incorporate alternate materials, designs, or construction may be acceptable when it is verified that such systems meet the applicable requirements. 2 Normative references The following documents contain provisions that, thro
36、ugh reference in this text, constitute provisions of this Standard. At the time of publication, the indicated editions were valid. All standards are subject to revision, and parties are encouraged to investigate the possibility of applying the recent editions of the standards indicated herein. The m
37、ost recent published edition of the document shall be used for undated references. American Public Health Association (APHA), American Water Works Association (AWWA) model and serial number designation; design capacity or rated daily capacity if applicable; and particle size rating, as applicable. 6
38、 Product literature All product literature shall contain the manufacturers name, address and phone number, and the products model designation. 6.1 Installation manual Manufacturers shall provide a manual with comprehensive and detailed installation instructions to authorized representatives. The man
39、ual shall be written so as to be easily understood by the intended reader and shall include, at a minimum: a numbered list of system components and an accompanying illustration, photograph, or print in which the components are respectively identified; design, construction, and material specification
40、s for the systems components; wiring schematics for the systems electrical components; off-loading and unpacking instructions, including safety considerations, identification of fragile components, and measures to be taken to avoid damage to the system; a process overview of the function of each com
41、ponent and the expected function of the entire system when all components are properly assembled and connected; a clear definition of system installation requirements including plumbing and electrical power re-quirements, ventilation, air intake protection, bedding, hydrostatic displacement protecti
42、on, water tightness, slope, and miscellaneous fittings and appurtenances; 2017 NSF NSF/ANSI 46 2017 5 a sequential installation procedure; repair or replacement instructions in the event that a system possesses flaws that would inhibit proper functioning, and a list of sources where replacement comp
43、onents can be obtained; and a detailed start-up procedure. 6.2 Operation and maintenance manual Manufacturers shall provide a manual with comprehensive and detailed operation and maintenance instructions to authorized representatives. The manual shall be written so as to be easily understood by the
44、intended reader and shall include, at a minimum: a maintenance schedule for all components; and a detailed procedure for visual evaluation of system component functions. 6.3 Troubleshooting and repair manual Manufacturers shall provide a manual with comprehensive and detailed troubleshooting and rep
45、air instructions to authorized representatives. The manual shall be written so as to be easily understood by the intended reader and shall include, at a minimum: a guide for visually evaluating the system and narrowing the scope of the problem based on effluent characteristics, system operation, and
46、 history; a sequential method for isolating specific component failure; and a step-by-step guide for repairing or replacing all system components. 6.4 Energy requirements The manufacturers engineering data and literature shall specify the energy sources and requirements for proper operation of compo
47、nents, devices, and any auxiliary system. 6.5 Chemical requirements The manufacturer shall make available to owners and authorized representatives Materials Safety Data Sheets (MSDS) or equivalent documentation explaining the toxicity and proper use, handling, and safety of all chemicals required fo
48、r the operation of all components and devices. 7 Performance testing and evaluation Performance testing and evaluation shall be independent of design and construction. However, structural weaknesses, undesirable noise, and other environmental defects and failures during the test shall be described i
49、n the final report (see 8). 7.1 The device shall be operated and maintained according to the manufacturers instructions. If these instructions conflict with the performance testing and evaluation protocols of this Standard, the protocols contained in this Standard shall apply. 7.2 All sample collection and analytical methods shall be those established in Standard Methods, except as otherwise specified. 7.3 The duration of the evaluation period shall be sufficient to ensure that results are reliable and applicable 2017 NSF NSF/ANSI
