NSF 7-2014 Commercial Refrigerators and Freezers.pdf

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1、NSF International Standard / American National StandardNSF/ANSI 7 - 2014 Commercial Refrigerators and FreezersNSF International, an independent, not-for-profit or-ganization, is dedicated to public health, safety and protection of the environment by developing stand-ards, by providing education and

2、by providing supe-rior third-party conformity assessment services while representing the interest 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

3、 contacting: Chair, Joint Committee on Food Equipment c/o NSF International 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 International Standard/ American Nat

4、ional Standard for Food Equipment Commercial refrigerators and freezers Standard Developer NSF International NSF International Board of Directors Designated as an ANSI Standard February 11, 2014 Standards Institute ii Recommended for Adoption by The NSF Joint Committee on Food Equipment The NSF Coun

5、cil of Public Health Consultants Adopted by The NSF Board of Directors April 1966 Revised October 1970 Revised March 1972 Revised March 1973 Revised November 1983 Revised November 1985 Revised May 1990 Revised March 1997 Revised December 1999 Revised July 2000 Revised April 2001 Revised June 2007 Re

6、vised May 2009 Revised February 2014 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 7-2014.” Copyright 2014 NSF International Previous editions 2009

7、, 2007, 2001, 2000, 1999, 1997, 1990, 1985, 1983, 1973, 1972, 1970, 1966 Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, elec-tronic or mechanical, including photocopying and microfilm, without permission in writing from NSF Internat

8、ional. Printed in the United States of America. iii Disclaimers1NSF, in performing 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 pro-fessional judgme

9、nt. 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 connection with the use, interpretation of, or reliance upon this Standard. NSF Stand

10、ards 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 national standards-setting organizations provide safety requirements. Participation in

11、 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 performance criteria measurable by examination or testing in NSF Standards development w

12、hen such performance criteria may reasonably be used in lieu of design, materials, or construc-tion 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 produ

13、ct 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 are not considered an integral part of NSF Standards. The annexes are provided as

14、 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 in accordance with ANSIs requirements for an ANS. Therefore, this Disclaimer ma

15、y contain material that has not been subjected to public review or a consensus process. In addition, it does not contain requirements nec-essary for conformance to the Standard. iv This page is intentionally left blank. v Contents 1 General . 1 1.2 Scope . 1 1.3 Alternate materials, design, and cons

16、truction 1 1.4 Measurement . 1 2 Normative references . 1 3 Definitions . 2 4 Materials . 2 4.1 Conformance to NSF/ANSI 51 . 3 4.2 Zinc-coated materials . 3 4.3 Solder . 3 4.4 Gaskets 3 4.5 Canopies and awnings . 3 4.6 Storage shelving . 3 5 Design and construction . 3 5.1 General sanitation 3 5.2 E

17、xternal angles and corners 4 5.3 Fasteners . 4 5.4 Joints and seams . 4 5.5 Edges and nosings . 5 5.6 Reinforcing and framing . 5 5.7 Inspection and maintenance panels . 5 5.8 Veneers 5 5.9 Doors 5 5.10 Hinges 6 5.11 Door gaskets 6 5.12 Door tracks and guides 6 5.13 Covers . 6 5.14 Openings into foo

18、d zones 7 5.15 Entry ports 7 5.16 Drains 7 5.17 Hardware . 7 5.18 Handles and pulls 7 5.19 Latches and catches 7 5.20 Breaker strips. 8 5.21 Shelving . 8 5.22 Ventilation openings. 8 5.23 Louvers 8 5.24 Equipment mounting 8 5.25 Legs and feet . 9 5.26 Casters, rollers, and gliders . 9 5.27 Insulatio

19、n . 10 5.28 Cutting boards . 10 5.29 Temperature controls 10 5.30 Breakable glass components 10 5.31 Food drawers . 10 5.32 Food shields 10 6 Storage refrigerators and freezers and refrigerated food transport cabinets 10 6.1 Zinc-coated materials . 11 6.2 Internal angles and corners 11 6.3 Joints an

20、d seams . 11 6.4 Hinges . 11 vi 6.5 Casters, rollers, and gliders . 11 6.6 Refrigeration and cooling components 12 6.7 Temperature-indicating devices (thermometers) . 12 6.8 Drains . 13 6.9 Equipment labeling and literature requirements . 13 6.10 Performance storage refrigerators and refrigerated fo

21、od transport cabinets . 13 6.11 Performance storage freezers 14 7 Refrigerated buffet units and refrigerated food preparation units . 16 7.1 Internal angles and corners 16 7.2 Equipment labeling and literature requirements . 16 7.3 Refrigeration and cooling components . 16 7.4 Temperature-indicating

22、 devices (thermometers) . 17 7.5 Performance . 17 8 Prefabricated walk-in and roll-in refrigerators and freezers 19 8.1 Prefabricated walk-in and roll-in refrigerators and freezers . 19 8.2 Prefabricated walk-in and roll-in refrigerators and freezers used for the storage of food in the original seal

23、ed package 21 8.3 Equipment labeling and literature requirements . 23 8.4 Performance for PVC laminated steel or aluminum . 23 9 Display refrigerators and freezers . 24 9.1 Materials . 24 9.2 Design and construction . 24 9.3 General sanitation 24 9.4 Fasteners . 24 9.5 Joints and seams . 24 9.6 Rein

24、forcing and framing . 25 9.7 Doors 25 9.8 Drains . 25 9.9 Shelving 25 9.10 Equipment mounting 25 9.11 Refrigeration and cooling components 26 9.12 Temperature-indicating devices (thermometers) . 27 9.13 Equipment labeling and literature requirements 27 9.14 Performance 28 10 Rapid pull-down refriger

25、ators and freezers . 29 10.1 Internal angles and corners . 29 10.2 Refrigeration and cooling components 29 10.3 Temperature-indicating devices (thermometers) . 30 10.4 Equipment labeling and literature requirements 30 10.5 Performance 30 Annex A . A1 Annex B . B1 vii Foreword2 The purpose of this St

26、andard is to establish minimum food protection and sanitation requirements for the materials, design, construction, and performance of commercial refrigerators and freezers. This edition of the Standard contains the following revision: Issue 11 The purpose of this revision was to add language and ne

27、w sections 8.1.1.2 and 8.4. These sections permit the use of PVC laminated metal for flooring inside walk-in and roll-in refrigerators and freezers. This Standard was developed by the NSF Joint Committee on Food Equipment using the consensus process described by the American National Standards Insti

28、tute. 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 Committee on Food Equipment, c/o NSF International, Standards Department, P.O. Box 13014

29、0, 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 ANSIs requirements for an ANS. Therefore, this Foreword may contain material that has not been subjected to public

30、review or a consensus process. In addition, it does not contain requirements nec-essary for conformance to the Standard.viii This page is intentionally left blank.ix NSF International NSF, founded in 1944, is well known for the development of standards, product testing and certification services in

31、the areas of public health, safety and protection of the environment. The NSF Mark is placed on millions of consumer, commercial and industrial products annually and is trusted by users, regulators and manufacturers. Technical resources at NSF include physical and performance testing facilities and

32、analytical chemistry and microbiology laboratories. NSF professionals include engineers, chemists, toxicologists, sanitarians and computer scientists with extensive experience in public heath, food safety, water quality and the environment. NSF certification programs are fully accredited by the Amer

33、ican National Standards Institute (ANSI), the Dutch Council for Accreditation (RvA) and the Standards Council of Canada (SCC). NSF also provides management system registration services to ISO 9000 and ISO 14000 standards through its subsidiary NSF International Strategic Registrations, Ltd. NSF main

34、tains laboratories in Michigan, as well as offices in Ann Arbor, MI, and Brussels, Belgium. Commercial Refrigerator Manufacturers Division/Air Conditioning Refrigeration Institute The Commercial Refrigerator Manufacturers Association (CRMA) was founded in 1933 as a national trade association dedicat

35、ed to advancing the common interests of the commercial refrigeration industry. In April 2000, CRMA merged with the Air Conditioning Refrigeration Institute (ARI) to form the Commercial Refrigerator Manufacturers Division/Air Conditioning Refrigeration Institute. CRMD/ARI continues to target three pr

36、imary objectives: to showcase technical and business information to help solve common problems and promote growth in industry. to represent the collective voice of the industry with any government organization addressing policies or issues affecting the industry. to support high voluntary standards

37、for quality in equipment design and performance. CRMD/ARI is a not-for-profit corporation of leading businesses meeting international demands for increasingly specialized and efficient refrigeration equipment. CRMD/ARI members serve a wide range of markets, including supermarkets, food stores, conve

38、nience stores, restaurants, hotels, motels, food processing establishments, and hospitals. This page is intentionally left blank.1 2014 NSF NSF/ANSI 7 2014 NSF/ANSI International Standard for Food Equipment Commercial refrigerators and freezers Commercial refrigerators and freezers 1 General 1.1 Pur

39、pose This Standard establishes minimum food protection and sanitation requirements for the materials, design, manufacture, construction, and performance of commercial refrigerators and freezers and their related components. 1.2 Scope This Standard contains requirements for refrigerators and freezers

40、 used to store and/or display cold food. The types of refrigerators and freezers covered by this Standard include, but are not limited to: storage refrigerators (e.g., reach-in, under counter, walk-in, roll-in); storage freezers (e.g., reach-in, under counter, walk-in, roll-in); rapid pull-down refr

41、igerators and freezers; refrigerated food transport cabinets; refrigerated buffet units; refrigerated food preparation units; display refrigerators; beverage coolers; and ice cream cabinets. This Standard does not establish equipment installation requirements. While the requirements of this Standard

42、 are intended to ensure that equipment may be installed in a sanitary manner, proper installation of equipment shall be governed by the applicable codes. Refrigerator and freezer components and materials covered under other NSF or NSF/ANSI Standards or Criteria shall also conform to the requirements

43、 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, equipment that in

44、corporates alternate materials, design, or construction may be acceptable when such equipment meets the applicable requirements herein. 1.4 Measurement Decimal and SI conversions provided parenthetically shall be considered equivalent. Metric conversions have been made according to IEEE/ASTM SI 10.

45、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 2014 NSF NSF/ANSI 7 2014 2 subject to revision, and parties are

46、encouraged to investigate the possibility of applying the most recent editions of the documents indicated below. ANSI Z97.1-2004, Safety Performance Specifications and Methods of Test for Safety Glazing Material Used in Buildings3ANSI/ASHRAE 72 -2005, Method of Testing Commercial Refrigerators and F

47、reezers4ANSI/UL 471-2006, Standard for Commercial Refrigerators and Freezers5ANSI/UL 197 2004. Standard for Commercial Electric Cooking Appliances5ASHRAE Refrigeration Handbook4ASTM A653/A653M, Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Ho

48、t Dip Process, Vol. 01.066ASTM A924/A924M, Specification for General Requirements Steel Sheet, Metallic-Coated by the Hot Dip Process, Vol. 01.066BS857:1967. Specification for safety glass for land transport7IEEE/ASTM SI 10-2002, Standard for the Use of the International System of Units (SI): The Mo

49、dern Metric System6 NSF/ANSI 2. Food equipment NSF/ANSI 51. Food equipment materials NSF/ANSI 170. Glossary of food equipment terminology 3 Definitions Terms used in this Standard that have special technical meaning are defined in NSF/ANSI 170. 4 Materials This section contains general requirements that apply to all equipment covered under the scope of this Standard. The requirements contained in this section are intended to protect food from contamination and ensure that the materials used in the manufacture of refrigerators and freezers resist wear; penetratio