1、 NSF/ANSI 177 2004 Shower filtration systems Aesthetic effects NSF International Standard/ American National Standard NSF/ANSI 177 2004Copyright NSF International (National Sanitation Foundation) Provided by IHS under license with NSFNot for ResaleNo reproduction or networking permitted without lice
2、nse from IHS-,-,-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 management solutions while serving the interests of all stakeholders. This Standard is subject to revision. Cont
3、act 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 Treatment Units c/o NSF International 789 North Dixboro Road, P.O. Box 130140 Ann Arbor, Michigan 48113-014
4、0 USA Phone: (734) 769-8010 Telex: 753215 NSF INTL FAX: (734) 769-0109 E-mail: infonsf.org Web: http:/www.nsf.org Copyright NSF International (National Sanitation Foundation) Provided by IHS under license with NSFNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NSF/
5、ANSI 177 2004 i NSF International Standard/ American National Standard for Water Treatment Units Shower filtration systems Aesthetic effects Standard Developer NSF International September 3, 2004 NSF International Designated as an ANSI Standard September 3, 2004 American National Standards Institute
6、 Copyright NSF International (National Sanitation Foundation) Provided by IHS under license with NSFNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ii Prepared by The NSF Joint Committee on Drinking Water Treatment Units Recommended for adoption by The NSF Council
7、of Public Health Consultants Adopted by The NSF Board of Directors September 2004 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 designation “NSF/ANSI 1772004.” Copyright
8、 2004, NSF International Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from NSF International. Printed in the United States of America. C
9、opyright NSF International (National Sanitation Foundation) Provided by IHS under license with NSFNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-iii Disclaimers1NSF, in performing its functions in accordance with its objectives, does not assume or undertake to dis
10、-charge any responsibility of the manufacturer or any other party. The opinions and findings of NSF repre-sent 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, inclu
11、ding consequential damages, arising 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
12、Standard because governmental agencies or other national standards-setting organizations provide safety requirements. Participation in NSF Standards development activities by regulatory agency representatives (federal, lo-cal, state) shall not constitute their agencys endorsement of NSF or any of it
13、s Standards. Preference is given to the use of performance criteria measurable by examination or testing in NSF Stan-dards 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
14、in understanding their adjacent 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 im-proper or incomplete design and
15、construction. Unless otherwise referenced, the annexes are not considered an integral part of NSF Standards. The an-nexes are provided as general guidelines to the manufacturer, regulatory agency, user, or certifying or-ganization. _ 1The information contained in this Disclaimer is not part of this
16、American National Standard (ANS) and has not been processed in accordance with ANSIs requirements for an ANS. As such, this Disclaimer may contain material that has not been subjected to public review or a consensus process. In addition, it does not contain requirements neces-sary for conformance to
17、 the Standard. Copyright NSF International (National Sanitation Foundation) Provided by IHS under license with NSFNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-iv This page is intentionally blank. Copyright NSF International (National Sanitation Foundation) Provi
18、ded by IHS under license with NSFNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-v Contents 1 General. 1 1.1 Purpose . 1 1.2 Scope 1 1.3 Minimum Requirements. 1 1.4 Alternate materials, designs, and construction . 1 1.5 Free Available Chlorine (FAC) reduction perfo
19、rmance claims 1 2 Normative references . 2 3 Definitions. 2 4 Materials . 4 4.1 Materials in contact with shower water4 Table 1 Materials listed in U.S. Code of Federal Regulations. 4 5 Structural performance . 5 5.1 Structural integrity 5 5.2 Acceptance 5 Table 2 Structural integrity testing requir
20、ements. 5 5.3 Working pressure 5 5.4 Structural integrity test methods 5 5.4.2 Hydrostatic pressure test. 7 6 Minimum performance claims. 7 6.1 Elements 7 6.2 Hazards . 7 6.3 Operation temperature 7 6.4 Minimum service flow 7 6.5 Rated service flow . 8 7 Elective performance claims test methods 8 7.
21、1 General requirements 8 7.2 FAC reduction testing 10 8 Instruction and information . 11 8.1 Installation, operation, and maintenance instruction. 11 8.2 Data plate 12 8.3 Replacement components. 12 8.4 Performance data sheet 12 Copyright NSF International (National Sanitation Foundation) Provided b
22、y IHS under license with NSFNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-vi This page is intentionally blank.Copyright NSF International (National Sanitation Foundation) Provided by IHS under license with NSFNot for ResaleNo reproduction or networking permitted
23、without license from IHS-,-,-vii Foreword2NSF International, The Public Health and Safety Company, has developed Standards and provided test-ing and certification services in the areas of public health and safety for more than 55 years. NSF Stan-dard 177 is an excellent example of the unique service
24、 NSF provides affected stakeholders. The purpose of this Standard is to establish minimum requirements for materials, design, construction, and performance of shower filtration systems that are designed to reduce aesthetic free available chlorine in public or private water supplies. This Standard sp
25、ecifies the minimum product literature and labeling information that a manufacturer is required to supply authorized representatives and system owners. This Standard provides minimum service-related obligations that the manufacturer supplies to system owners. This Standard was developed by the NSF J
26、oint Committee on Drinking Water Treatment Units using the consensus process described by the American National Standards Institute. NSF offers a certification program to NSF/ANSI Standard 177. Products certified by NSF carry the NSF Mark, one of the most respected certification marks in the world.
27、The NSF Mark on a product gives con-sumers and retailers assurance that the product has been tested and meets the requirements of the NSF Standard. For more information on the NSF certification program, please contact the Drinking Water Treatment Unit program at NSF International, P.O. Box 130140, A
28、nn Arbor, Michigan 48113-0140 or at 1-734-769-8010. Suggestions for improvement of this Standard are welcome. Comments should be sent to Chair, Joint Committee on Drinking Water Treatment Units, c/o NSF International, Standards Department, at the above address. _ 2The information contained in this F
29、oreword is not part of this American National Standard (ANS) and has not been processed in accordance with ANSIs requirements for an ANS. As such, this Foreword may contain material that has not been subjected to public review or a consensus process. In addition, it does not contain requirements nec
30、essary for conformance to the Standard. Copyright NSF International (National Sanitation Foundation) Provided by IHS under license with NSFNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-viii This page is intentionally blank.Copyright NSF International (National Sa
31、nitation Foundation) Provided by IHS under license with NSFNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1 2004 NSF NSF/ANSI 177 2004 NSF/ANSI Standard for Water Treatment Units Shower filtration systems Aesthetic effects 1 General 1.1 Purpose It is the purpose o
32、f this Standard to establish minimum performance requirements for shower filtration systems including substance reduction performance, materials safety, and design, construction, and structural performance. This Standard also specifies the minimum product literature and labeling informa-tion that a
33、manufacturer shall supply to authorized representatives and system owners. 1.2 Scope The point-of-use shower filtration systems addressed by this Standard are designed to be used for the reduction of specific substances that may be present in potable water (public or private). Systems cov-ered under
34、 this Standard are intended to reduce substances affecting the aesthetic quality of the water. Only whole systems shall be evaluated under this Standard. Systems with components or functions cov-ered under other NSF or NSF/ANSI standards or criteria shall comply with those applicable requirements. 1
35、.3 Minimum requirements This Standard establishes minimum requirements. Some requirements may be waived if it is verified that the candidate system or component is sufficiently similar to a tested system or component as to provide equivalent or better operation and performance. A system as defined i
36、n this standard shall meet all requirements of this Standard. A component as defined in this standard shall meet the requirements of 4. If the component is pressure bearing, it shall also meet the applicable requirements of 5. 1.4 Alternate materials, designs, and construction While specific materia
37、ls, designs, and construction may be stipulated in this Standard, systems that in-corporate alternate materials, designs, and construction may be acceptable when it is verified that such systems meet the applicable requirements stated herein. 1.5 Free Available Chlorine (FAC) reduction performance c
38、laims 1.5.1 All NSF/ANSI 177 performance claims shall be verified and substantiated by test data generated under the requirements of NSF/ANSI 177. 1.5.2 When making performance claims for substances not specifically addressed in the scope of this Standard or for those substances not specifically add
39、ressed but falling under the scope of NSF/ANSI 177, those claims not specifically addressed in the Standard shall be so identified. Copyright NSF International (National Sanitation Foundation) Provided by IHS under license with NSFNot for ResaleNo reproduction or networking permitted without license
40、 from IHS-,-,-NSF/ANSI 177 2004 2004 NSF 2 2 Normative references The following documents contain requirements that, by reference in this text, constitute requirements of this Standard. At the time of publication, the indicated editions were valid. All of the documents are sub-ject to revision and p
41、arties are encouraged to investigate the possibility of applying the recent editions of the documents indicated below. APHA, Standard Methods for the Examination of Water and Wastewater, twentieth edition3USEPA-600/4-79-020, Methods for the Chemical Analysis of Water and Wastes, March 19834 USEPA-60
42、0/R-94/111, Methods for the Determination of Metals in Environmental Samples, Supplement 1, May 19944 USEPA-90/020, Methods for the Determination of Organic Compounds in Drinking Water, Supplement 1, July 19904 USEPA Guidelines Establishing Test Procedures for the Analysis of Pollutants, 40 CFR Part
43、 1365USEPA National Primary Drinking Water Regulations, 40 CFR Part 1415 USEPA Safe Drinking Water Act, 42 USC s/s 300f et seq. (1974) as amended in 19865USFDA Code of Federal Regulations, Title 21, (Food and Drugs) Direct Food Additive Substances Parts 170 through 199, April 1, 19926 3 Definitions
44、The following are definitions of terms used in this document: 3.1 aesthetic: Pertaining to factors that affect potable water, such as taste, odor, color, and appear-ance, which may in turn affect acceptance of public or private potable water. 3.2 capacity: The rated service cycle, expressed as a fun
45、ction of time or volume of water treated by the system between manufacturer-specified servicings (cleaning, regeneration, or replacement) of the medium (media). 3.3 chemical reduction: The reduction in the quantity of one or more specified contaminants in pota-ble water. 3.4 clean-system: A system t
46、hat has not been subjected to an influent challenge containing specified contaminant(s). 3.5 component: A separate or distinct part of the shower filtration system including, but not limited to, appurtenant accessories such as membranes, filters, housing, tubing, valves, and connectors to the feed w
47、ater supply. _ 3American Public Health Association (APHA), 800 I Street, NW, Washington, DC 20001 4USEPA, Environmental Monitoring and Support Laboratory, Cincinnati, OH 45268 5 Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402 6USFDA, 5600 Fishers Lane, Rockville, M
48、D 20857 Copyright NSF International (National Sanitation Foundation) Provided by IHS under license with NSFNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- 2004 NSF NSF/ANSI 177 2004 3 3.6 contaminant: Any physical, chemical, biological or radiological substance or matter that has a beneficial or detrimental effect on the potability of water. 3.7 flow rate: The volume of water that passes through the system in a specified time period. 3.8 influent challenge: The mixture of water and contaminant
