1、NSF International Standard / American National StandardNSF/ANSI 53 - 2015Drinking Water Treatment Units - Health Effects NSF International, an independent, not-for-profit, non-governmental organization, is dedicated to being the leading global provider of public health and safety-based risk manageme
2、nt 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 Committee on Drinking Water Tre
3、atment Units 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.org i NSF/ANSI 53 2015 NSF International Standard/ American National Standard for Drinking
4、 Water Treatment Units Drinking water treatment units Health effects Standard Developer NSF International NSF International Board of Directors Designated as an ANSI Standard April 19, 2015 American National Standards Institute ii Prepared by The NSF Joint Committee on Drinking Water Treatment Units
5、Recommended for adoption by The NSF Council of Public Health Consultants Adopted by The NSF Board of Directors December 1981 Revised June 1982 Revised June 1988 Revised May 1990 Revised November 1992 Revised September 1993 Revised March 1994 Revised March 1996 Revised September 1996 Revised Septembe
6、r 1997 Revised November 1998 Revised March 1999 Revised September 1999 Revised May 2000 Revised November 2000 Revised January 2001 Revised January 2002 Addendum 2.0 2002, October 2002 Editorial Revision November 2003 Revised July 2004 Addendum 1.0 2002e, August 2004 Revised February 2005 Revised Jan
7、uary 2006 Addendum 1.0 2006, March 2006 Revised February 2007 Revised July 2007 Addendum 1.0 2007, March 2008 Revised August 2009 Revised August 2010 Revised April 2011 Revised April 2012 Revised December 2012 Revised December 2013 Revised August 2014 Addendum 1.0 - 2013, August 2014 Revised January
8、 2015 Revised October 2015 Addendum 1.0 2002, June 2002 Published by NSF International P.O. Box 130140, Ann Arbor, Michigan 48113-0140, USA For ordering copies or for making inquiries with regard to this Standard, please reference the designation “NSF/ANSI 53 2015.” Copyright 2015 NSF International
9、Previous editions 2014, 2013, 2012, 2011, 2009, 2008. 2007, 2006, 2005, 2004, 2002, 2001, 2000, 1998, 1997, 1996, 1994, 1993, 1992, 1990, 1988, 1982, 1981 Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, incl
10、uding photocopying and microfilm, without permission in writing from NSF International. Printed in the United States of America. iii Disclaimers1 NSF, in performing its functions in accordance with its objectives, does not assume or undertake to discharge any responsibility of the manufacturer or an
11、y 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, arising out of or in conn
12、ection 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 agencies or other natio
13、nal standards-setting organizations provide safety requirements. Participation in NSF 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 given to the use of perform
14、ance 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 standard requirements.
15、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 referenced, the annexes a
16、re 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 has not been processed
17、 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. iv This page is intentionally left blank. v
18、 Contents 1 General . 1 1.1 Purpose 1 1.2 Scope . 1 1.3 Alternate materials, designs, and construction . 1 1.4 Minimum requirements 1 1.5 Chemical and mechanical reduction performance claims . 2 1.6 Treatment train 2 1.7 Standard review 2 2 Normative references 2 3 Definitions . 3 4 Materials . 3 4.
19、1 Materials in contact with drinking water . 3 4.2 Materials evaluation 4 4.3 Gas chromatography/mass spectroscopy (GC/MS) analysis 6 5 Structural performance 15 5.1 Structural integrity . 15 5.2 Acceptance . 15 5.3 Working pressure 16 5.4 Structural integrity test methods 17 6 Minimum performance r
20、equirements 21 6.1 Performance indication of chemical reduction capacity 21 6.2 Elements. 22 6.3 Flow control 22 6.4 Waste connections 23 6.5 Product water dispensing outlets . 23 6.6 Hazards 23 6.7 Systems used in bottled water plants. 23 6.8 Operation temperature 23 6.9 POE rated pressure drop 23
21、6.10 Minimum service flow 24 6.11 Rated service flow 24 6.12 Active agents and additives. 24 7 Elective performance claims test methods 25 7.1 General requirements . 25 7.2 Chemical reduction claims. 27 7.3 Mechanical filtration reduction claims 46 7.4 Metals reduction testing 60 8 Instruction and i
22、nformation 83 8.1 Installation, operation, and maintenance instructions . 83 8.2 Data plate . 85 8.3 Replacement components . 88 8.4 Performance data sheet 89 Annex A . A1 Annex B B1 Annex C C1 Annex D D1 Annex E E1 Annex F . F1 vi Annex G . G1 Annex H H1 Annex I . I1 vii Foreword2 The purpose of th
23、is Standard is to establish minimum requirements for materials, design and construction, and performance of drinking water treatment systems that are designed to reduce specific health-related contaminants in public or private water supplies. NSF/ANSI 53 specifies minimum product literature requirem
24、ents that manufacturers must provide to authorized representatives and owners. This edition of the Standard contains the following revisions: Issue 85 This revision updated the usage pattern specified for nonplumbed pour-through-type batch treatment systems when no manufacturers recommended use patt
25、ern is given. Issue 98 This revision harmonized the structural integrity requirements in Table 5 in NSF/ANSI 42, NSF/ANSI 44 and NSF/ANSI 53. Issue 99 This revision added clarification regarding the maximum number of samples exposed in the Materials evaluation under section 4. Issue 100 This revisio
26、n added criteria for utilizing a treatment train approach for the evaluation of a system containing multiple, sequential treatment technologies. Issue 101 This revision clarified the sampling requirements for the cyst reduction tests under NSF/ANSI 53 and 58. This Standard was developed by the NSF J
27、oint Committee on Drinking Water Treatment Units 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. C
28、omments should be sent to Chair, Joint Committee on Drinking Water Treatment Units 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 (A
29、NS) and has not been processed in accordance with ANSIs 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. viii This page
30、is intentionally left blank. 1 2015 NSF NSF/ANSI 53 2015 NSF/ANSI Standard for Drinking Water Treatment Units Drinking water treatment units Health effects 1 General 1.1 Purpose It is the purpose of this Standard to establish minimum requirements for materials, design and construction, and performan
31、ce of point-of-use and point-of-entry drinking water treatment systems that are designed to reduce specific health-related contaminants in public or private water supplies. Such systems include point-of-entry drinking water treatment systems used to treat all or part of the water at the inlet to a r
32、esidential facility or a bottled water production facility, and includes the material and components used in these systems. This Standard also specifies the minimum product literature and labeling information that a manufacturer shall supply to authorized representatives and system owners, as well a
33、s the minimum service-related obligations that the manufacturer shall extend to system owners. 1.2 Scope The point-of-use and point-of-entry systems addressed by this Standard are designed to be used for the reduction of specific substances that may be present in drinking water (public or private).
34、These substances are considered established or potential health hazards. They may be microbiological, chemical, or particulate (including filterable cysts) in nature. It is recognized that a system may be effective in controlling one or more of these contaminants, but systems are not required to con
35、trol all. Activated carbon filter systems covered by this Standard are not intended to be used with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system. 1.3 Alternate materials, designs, and construction While specific materials, desi
36、gns, and construction may be stipulated in this Standard, systems that incorporate alternate materials, designs, and construction may be acceptable when it is verified that such systems meet the applicable requirements stated herein. 1.4 Minimum requirements A system as defined in this standard shal
37、l meet the applicable requirements of 4, 5, 6, and 8, plus at least one performance claim as described in 7. A component as defined in this standard shall meet the requirements of 4 and 8. If the component is pressure-bearing, it shall also meet the applicable requirements of 5. A commercial modular
38、 system as defined in this standard shall meet the applicable requirements of 4, 5, 6, and 8, plus at least one performance claim as described in 7. Manifolds of commercial modular systems shall meet the requirements of 4, 5 (if pressure bearing), and 8, and shall be evaluated as stand-alone compone
39、nts. Manifolds shall have a minimum internal diameter such that the water velocity in the manifold will not exceed 3 m (10 ft) per second (which can be calculated based upon the system flow rate 2015 NSF NSF/ANSI 53 2015 2 and the manifold internal diameter). Individual modular elements evaluated as
40、 a manifold and modular element combination shall meet the applicable requirements of 4, 5, 6, and 8, plus at least one performance claim as described in 7. 1.5 Chemical and mechanical reduction performance claims 1.5.1 All performance claims shall be verified and substantiated by test data generate
41、d under the requirements of this Standard. 1.5.2 When performance claims are made for substances not specifically addressed in the scope of this Standard or for those substances not specifically addressed but falling under the scope of NSF/ANSI 53, those claims not specifically addressed in the Stan
42、dard shall be so identified. 1.6 Treatment train A system that contains multiple, sequential treatment technologies for a performance claim under this Standard shall meet the applicable requirements as described in Annex I. 1.7 Standard review This Standard shall be reviewed at least once every five
43、 years. The review shall be conducted by the NSF Joint Committee on Drinking Water Treatment Units. 2 Normative references The following documents contain provisions that constitute requirements of this Standard. At the time of publication, the indicated editions were valid. All standards are subjec
44、t to revision, and parties are encouraged to investigate the possibility of applying the recent editions of the standards indicated below. The most recent published edition of the document shall be used for undated references. APHA, Standard Methods for the Examination of Water and Wastewater, twent
45、ieth edition3 NSF/ANSI 42 Drinking water treatment units Aesthetic effects NSF/ANSI 60 Drinking water treatment chemicals Health effects NSF/ANSI 61 Drinking water system components Health effects SAE Standard J726 June 1993. Air Cleaner Test Code4 USEPA100.1. Analytical Method for Determination of
46、Asbestos Fibers in Water, formerly USEPA-600/4-83-0435 USEPA600/4 79/020. Methods for the Chemical Analysis of Water and Wastes, March 19835 USEPA600/4 84/053. Methods for Organic Chemical Analysis of Municipal and Industrial Wastewater, June 19845 3 American Public Health Association (APHA), 800 I
47、Street NW, Washington, DC 20001 . 4 Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096 . 5 U. S. Environmental Protection Agency (USEPA), Environmental Monitoring and Support Laboratory, Cincinnati, OH 45268 . 2015 NSF NSF/ANSI 53 2015 3 USEPA600/4 91/010. Methods for the
48、Determination of Metals in Environmental Samples, June 19935 USEPA600/4 88/039. Methods for the Determination of Organic Compounds in Drinking Water, December 19885 USEPA600/4 90/020. Methods for the Determination of Organic Compounds in Drinking Water Supplement 1, July 19905 USEPA National Primary
49、 Drinking Water Regulations, 40 CFR Part 146 USEPA National Primary Drinking Water Regulations, 40 CFR Part 1366 USEPA National Secondary Drinking Water Regulations, 40 CFR Part 1436 USEPA ICR Protozoan Method for the Detecting Giardia Cysts and Cryptosporidium Oocysts in Water by a Fluorescent Antibody Procedure, EPA/814-B-95-003, June 19956 USFDA Code of Federal Regulations, Title 21, (Food and Drugs) Direct Food Additive Substances Parts 170 through 199, April 1, 19926 3 Definitions Terms used in this Standard tha
