1、NSF International Standard / American National StandardNSF/ANSI 3 - 2017 Commercial Warewashing Equipment 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 wh
2、ile 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 Food Equipment c/o NSF Internatio
3、nal 789 North Dixboro Road, P.O. Box 130140 Ann Arbor, Michigan 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 3-2017 NSF International Standard/ American National Standard for Food Equipment Commercial warewashing
4、 equipment Standard Developer NSF International NSF International Designated as an ANSI Standard April 11, 2017 American National Standards Instituteii Recommended for Adoption by The NSF Joint Committee on Food Equipment The NSF Council of Public Health Consultants Adopted by The NSF Board of Direc
5、tors May 1953 Revised April 1965 Revised November 1977 Revised June 1982 Revised July 1996 Revised May 2001 Revised April 2003 Revised November 2005 Revised March 2007 Revised April 2008 Revised April 2009 Revised November 2010 Revised August 2012 Revised April 2017 Published by NSF International PO
6、 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 3 2017.“ Copyright 2017 NSF International Previous Editions 2012, 2010, 2009, 2008, 2007, 2005, 2003, 2001, 1996, 1982, 1977, 1965 Unl
7、ess 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.iii Disclaimers1 NSF, in perfo
8、rming its functions in accordance with its objectives, does not assume or undertake to discharge any responsibility of 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 thi
9、s Standard by anyone. NSF shall not incur any obligation or liability for damages, including 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
10、 health. Provisions for mechanical and electrical safety have not been included in this Standard because governmental agencies or other national standards-setting organizations provide safety requirement. Participation in NSF Standards development activities by regulatory agency representatives (fed
11、eral, local, state) shall not constitute their agencys endorsement of NSF or any of its Standards. Preference is given 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, materia
12、ls, or construction criteria. The illustrations, if provided, are intended to assist 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. S
13、uch partial drawings shall not be used to justify improper or incomplete design and construction. Unless otherwise referenced, 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
14、organization. 1 The information contained in this Disclaimer is not part of this American National Standard (ANS) and 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 p
15、rocess. In addition, it does not contain requirements necessary for conformance to the Standard. This page is intentionally left blank.v Contents 1 General . 1 1.1 Purpose 1 1.2 Scope . 1 1.3 Alternate materials, design, and construction 1 1.4 Measurement . 1 2 Normative references . 1 3 Definitions
16、 . 2 4 Materials . 2 4.1 Corrosion resistance 2 4.2 Smoothness and cleanability . 2 4.3 Coatings . 3 4.4 Solder . 3 4.5 Copper water lines . 3 5 Design and construction . 3 5.1 General sanitation 3 5.2 Joints and seams . 3 5.3 Reinforcing and framing . 3 5.4 Inspection and maintenance panels 4 5.5 L
17、ouvers. 4 5.6 Equipment mounting 4 5.7 Legs and feet . 4 5.8 Temperature indicating devices . 5 5.9 Plumbing connections 5 5.10 Thermostatic control 6 5.11 Separation of residual food waste . 6 5.12 Pumps 6 5.13 Spray assemblies 6 5.14 Racks . 6 5.15 Sanitizing rinse 7 5.16 Pressure gauges . 7 5.17
18、Condensers and blowers . 7 5.18 Curtains and similar devices 7 5.19 Rinse aid, detergent, and chemical sanitizer feeders . 7 5.20 Additional design and construction requirements for specific machine designs . 8 6 Performance . 9 6.1 Soil removal . 10 6.2 Sanitization efficacy . 14 6.3 Thermostat dif
19、ferential . 20 7 Manufacturers specifications . 20 7.1 Hot water sanitizing machines . 20 7.2 Chemical sanitizing machines 21 7.3 Equipment labeling . 22 7.4 Manufacturers instructions 22 8 Warewashing equipment provided with a security package 22 8.1 General. 22 8.2 Special tools . 22 8.3 Fastening
20、 methods . 22 vi 8.4 Drawers 23 8.5 Labeling 23 9 Warewashing equipment for use in marine environments . 23 9.1 Materials . 23 9.2 Design and construction. 23 Annex A Heat Unit Equivalent (HUE) values corresponding to temperature in degrees Fahrenheit . 25 Annex B Ingredients for pie filling . 27 An
21、nex C Food Equipment Joint Committee 29 vii Foreword2 The purpose of this Standard is to establish minimum public health and sanitation requirements for the materials, design, construction, and performance of commercial spray-type dishwashing, glasswashing, and pot, pan, and utensil washing machines
22、. The Standard covers commercial dishwashing, glasswashing, and pot, pan, and utensil washing machines that wash their contents by applying sprays of detergent solutions and sanitize their contents by applying either hot water sprays or chemical sanitizing solutions. Both stationary rack and conveyo
23、r machines are covered by the scope of this Standard. All equipment previously covered by NSF 26 1980: Pot, pan, and utensil commercial spray-type washing machines is also covered by the scope of this Standard. This edition of the Standard contains the following revision: Issue 12 This revision upda
24、ted normative references in section 2 and revised language in section 5.9.2. The figure titles in this edition have also been updated to maintain consistency with other NSF Standards: Previous edition of NSF/ANSI 3 Current edition of NSF/ANSI 3 Figure 6.1 Figure 1 Figure 6.2 Figure 2 Figure 6.3 Figu
25、re 3 Figure 6.4 Figure 4 Figure 6.5 Figure 5 This Standard was developed by the NSF Joint Committee on Food Equipment using the consensus pro-cess described by the American National Standards Institute. Suggestions for improvement of this Standard are welcome. This Standard is maintained on a Contin
26、uous Maintenance schedule and can be opened for comment at any time. Comments should be sent to Chair, Joint Committee on Food Equipment at standardsnsf.org or, c/o NSF International, Standards Depart-ment, P.O. Box 130140, Ann Arbor, Michigan 48113-0140, USA. 2 The information contained in this For
27、eword is not part of this American National Standard (ANS) 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 nec
28、essary for conformance to the Standard. This page is intentionally left blank.1 2017 NSF NSF/ANSI 3 2017 NSF/ANSI Standard for Food Equipment Commercial warewashing equipment 1 General 1.1 Purpose This Standard establishes minimum public health and sanitation requirements for the materials, design,
29、construction, and performance of commercial warewashing machines and their related components. 1.2 Scope This Standard applies to commercial dishwashing, glasswashing, and pot, pan, and utensil washing machines that wash their contents by applying sprays of detergent solutions with or without blasti
30、ng media granules, and sanitize their contents by applying sprays of hot water or chemical sanitizing solutions. Stationary rack and conveyor machines are covered under this Standard. Equipment components and materials covered under other NSF or NSF/ANSI Standards or criteria shall also comply with
31、the requirements therein. This Standard is not intended to restrict new unit design, provided that such design meets the minimum specifications described herein. 1.3 Alternate materials, design, and construction While specific materials, design, and construction may be stipulated in this Standard, e
32、quipment that incorporates alternate materials, design, or construction may be acceptable when such equipment meets the intent of the applicable requirements herein. 1.4 Measurement Decimal and SI conversions provided parenthetically shall be considered equivalent. Metric conversions and significant
33、 figure rounding have been made according to IEEE/ASTM SI 10. 2 Normative references The following documents contain provisions that, through reference, constitute provisions of this NSF/ANSI Standard. At the time this Standard was balloted, the editions listed below were valid. All documents are su
34、bject to revision, and parties are encouraged to investigate the possibility of applying the recent editions of the documents indicated below. The most recent published edition of the document shall be used for undated references. 40 C.F.R. 180.940 Tolerance exemptions for active and inert ingredien
35、ts for use in antimicrobial formulations (Food-Contact Surface Sanitizing Solutions)3 ANSI/ASSE 1001 2008. Atmospheric Type Vacuum Breakers4 3 U. S. Government Printing Office, Washington, DC 20402. . 4 ASSE International 18927 Hickory Creek Drive, Suite 220 Mokena, Illinois 60448. . 2017 NSF NSF/AN
36、SI 3 2017 2 ANSI/ASSE.1004 2008. Backflow Prevention Requirements for Commercial Dishwashing Machines4 APHA, Standard Methods for the Examination of Dairy Products, seventeenth edition5 APHA, Standard Methods for the Examination of Water and Wastewater, 22nd edition5 IAPMO Uniform Plumbing Code 2015
37、6 ICC International Plumbing Code 20157 IEEE/ASTM SI 10 2010. American National Standard for Metric Practice8 NSF/ANSI 29. Detergent and chemical feeders for commercial spray-type dishwashing machines NSF/ANSI 170. Glossary of food equipment terminology 3 Definitions Terms used in this Standard that
38、 have special technical meaning are defined in NSF/ANSI 170. 4 Materials The requirements contained in this section are intended to ensure that the materials used in the manufacture of warewashing machines resist wear and penetration by vermin (insulation in sealed, non-food zone enclosures is exemp
39、t) and are unaffected by detergents, sanitizers, and other substances present in the intended use environment. 4.1 Corrosion resistance Exposed surfaces shall be corrosion-resistant in the intended use environment. Surfaces, other than interior surfaces exposed to wash and rinse water, may be render
40、ed corrosion-resistant by the application of a coating or coatings. Coatings conforming to NSF/ANSI 51, as applied, may be used to render a material corrosion resistant. NOTE Materials that are worked (e.g., bent, cut, sheared, extruded, drawn) during equipment manufacture may require additional tre
41、atment following fabrication in order to render them corrosion-resistant. 4.2 Smoothness and cleanability Exposed surfaces shall be smooth and easily cleanable. Interior surfaces repeatedly exposed to wash water, rinse water, or both are not required to be smooth. 5 American Public Health Associatio
42、n, 800 I Street, NW, Washington, DC 20001. . 6 International Association of Plumbing and Mechanical Officials, 5001 E. Philadelphia St., Ontario, CA 91761. . 7 International Code Council, 5203 Leesburg Pike, Suite 600; Falls Church, VA 22041. . 8 ASTM International, 100 Barr Harbor Dr., West Conshoh
43、ocken, PA 19428. . 2017 NSF NSF/ANSI 3 2017 3 4.3 Coatings 4.3.1 Coatings containing lead as an intentional ingredient shall not be used. Coatings with an unintentional lead content (lead impurity) greater than 0.06% shall not be used. 4.3.2 Coatings shall resist cracking and chipping under use cond
44、itions. 4.4 Solder Solder containing lead as an intentional ingredient shall not be used on surfaces in contact with wash water or rinse water. 4.5 Copper water lines Copper water lines shall not pass through a machine tank. They shall not be used in any recirculating system or be in contact with so
45、lutions of detergents, chemical sanitizers, or other chemicals. Copper water lines are exempt from the corrosion resistance requirement in 4.1. 5 Design and construction This section contains design and construction requirements for equipment covered within the scope of this Standard. 5.1 General sa
46、nitation 5.1.1 Equipment shall be designed and manufactured to prevent the harborage of vermin and the accumulation of dirt and debris, and to permit the inspection, maintenance, servicing, and cleaning of the equipment and its components. 5.1.2 Surfaces exposed to wash water, rinse water, routine s
47、plashes, spills, or other soiling shall be readily accessible and easily cleanable. Additional access openings shall be provided when the installation of a machine would otherwise prevent these surfaces from being readily accessible and easily cleanable. Valves and pipes shall not obstruct access op
48、enings or interfere with cleaning. 5.1.3 Equipment parts and components that require removal for routine equipment operation or cleaning shall be readily removable. NOTE Safety devices required by federal, state, or local regulations are not required to be readily removable. 5.2 Joints and seams 5.2
49、.1 Permanent joints and seams in a tank shall be sealed and smooth. Tanks shall be of integral construction or integrally welded. 5.2.2 Permanent joints and seams, other than those in the tank, shall be sealed. Joints made by overlapping sheets of metal shall not create upward-facing horizontal ledges. 5.2.3 Permanent joints and seams that result from the installation of functional parts, baffles, and accessories, or from the joining of machine components, shall be readily accessible and easily cleanable. 5.3 Reinforcing and framing 5.3.1 Exposed rei
