《AS-1731.2-2003.pdf》由会员分享,可在线阅读,更多相关《AS-1731.2-2003.pdf(21页珍藏版)》请在三一文库上搜索。
1、AS 1731.22003 (Incorporating Amendment No. 1) Australian Standard Refrigerated display cabinets Part 2: General mechanical and physical requirements AS 1731.22003 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 21 Oct 2008 This Australian Standard was prepared by Committee ME-008, Refrigerated Display
2、Cabinets. It was approved on behalf of the Council of Standards Australia on 26 September 2003. This Standard was published on 1 October 2003. The following are represented on Committee ME-008: Australian Greenhouse Office Australian Retailers Association Commercial Refrigeration Manufacturers Assoc
3、iation of Australia Food Science Australia Institution of Engineers Australia Refrigeration Air Conditioning Companies Association Keeping Standards up-to-date Standards are living documents which reflect progress in science, technology and systems. To maintain their currency, all Standards are peri
4、odically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments which may have been published since the Standard was p
5、urchased. Detailed information about Standards can be found by visiting the Standards Web Shop at .au and looking up the relevant Standard in the on-line catalogue. Alternatively, the printed Catalogue provides information current at 1 January each year, and the monthly magazine, The Global Standard
6、, has a full listing of revisions and amendments published each month. Australian StandardsTM and other products and services developed by Standards Australia are published and distributed under contract by SAI Global, which operates the Standards Web Shop. We also welcome suggestions for improvemen
7、t in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities. Contact us via email at mailstandards.org.au, or write to the Chief Executive, Standards Australia, GPO Box 476, Sydney, NSW 2001. This Standard was issued in draft form for com
8、ment as DR 03207. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 21 Oct 2008 AS 1731.22003 (Incorporating Amendment No. 1) Australian Standard Refrigerated display cabinets Part 2: General mechanical and physical requirements Originated as AS B2201966. Previous edition AS 1731.22000. Second edition 20
9、03. Reissued incorporating Amendment No. 1 (December 2005). COPYRIGHT Standards Australia All rights are reserved. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, withoutthe written permission of the publisher. Published
10、 by Standards Australia GPO Box 476, Sydney, NSW 2001, Australia ISBN 0 7337 5526 7 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 21 Oct 2008 AS 1731.22003 2 PREFACE This Standard was prepared by the Australian members of the Joint Standards Australia/Standards New Zealand Committee ME-008, Refrigera
11、ted Display Cabinets, to supersede AS 17312000, Refrigerated display cabinets, Part 2: General mechanical and physical requirements. After consultation with stakeholders in both countries, Standards Australia and Standards New Zealand decided to develop this Standard as an Australian, rather than an
12、 Australian/New Zealand Standard. This Standard incorporates Amendment No. 1 (December 2005). The changes required by the Amendment are indicated in the text by a marginal bar and amendment number against the clause, note, table, figure or part thereof affected. This Standard is based on Internation
13、al Standard prEN ISO 23953-2:2003, Refrigerated display cabinets, Part 2: Classification, requirements and test conditions. This Standard is Part 2 of a series of Standards for refrigerated display cabinets, as follows: AS 1731 Refrigerated display cabinets 1731.1 Part 1: Terms and definitions 1731.
14、2 Part 2: General mechanical and physical requirements (this Standard) 1731.3 Part 3: Linear dimensions, areas and volumes 1731.4 Part 4: General test conditions 1731.5 Part 5: Temperature test 1731.6 Part 6: Classification according to temperatures 1731.7 Part 7: Defrosting test 1731.8 Part 8: Wate
15、r vapour condensation test 1731.9 Part 9: Electrical energy consumption test 1731.10 Part 10: Test for absence of odour and taste 1731.11 Part 11: Installation maintenance and user guide 1731.12 Part 12: Measurement of the heat extraction rate of the cabinets when the condensing unit is remote from
16、the cabinet 1731.13 Part 13: Test reports 1731.14 Part 14: Minimum energy performance standard (MEPS) requirements Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 21 Oct 2008 3 AS 1731.22003 CONTENTS Page 1 SCOPE4 2 REFERENCED DOCUMENTS4 3 OBJECTIVE.5 4 CONSTRUCTION5 5 REQUIRED CHARACTERISTICS AND THEI
17、R LIMITS9 6 TESTS AND INSPECTIONS. 10 7 MARKING AND INFORMATION 11 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 21 Oct 2008 AS 1731.22003 4 Standards Australia .au STANDARDS AUSTRALIA Australian Standard Refrigerated display cabinets Part 2: General mechanical and physical requirements 1 SCOPE 1.1 S
18、cope of Standard This Standard specifies terminology, general mechanical and physical requirements, test conditions as well as installation and maintenance, for commercial refrigerators and freezers used for the sale or display of food products including beverages. This Standard does not cover refri
19、gerated vending machines, ice-makers, cabinets intended for use in catering and similar non-retail applications. 1.2 Scope of Part 2 This Part of AS 1731 defines the requirements for construction, selection and use of materials, components and performance of refrigerated display cabinets. It specifi
20、es the reference to other Parts of AS 1731 which define in detail the conditions and test methods for these requirements. Finally, it specifies the requirements for marking and the list of characteristics to be declared by the manufacturer. 2 REFERENCED DOCUMENTS The following documents are referred
21、 to in this Standard: AS 1731 Refrigerated display cabinets 1731.1 Part 1: Terms and definitions 1731.3 Part 3: Linear dimensions, areas and volumes 1731.4 Part 4: General test conditions 1731.5 Part 5: Temperature test 1731.6 Part 6: Classification according to temperatures 1731.7 Part 7: Defrostin
22、g test 1731.8 Part 8: Water vapour condensation test 1731.9 Part 9: Electrical energy consumption test 1731.10 Part 10: Test for the absence of odour and taste 1731.14 Part 14: Minimum energy performance standard (MEPS) requirements AS/NZS 1677 Refrigerating systems 1677.1 Part 1: Refrigerant classi
23、fication 1677.2 Part 2: Safety requirements for fixed applications 3350 Safety of household and similar electrical appliances 3350.2.24 Part 2.24: Particular requirements for refrigerating appliances and ice-cream appliances and ice-makers 60335 Household and similar electrical appliancesSafetyParti
24、cular requirements 60335.2.89 Part 2.89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor A1 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 21 Oct 2008 5 AS 1731.22003 .au Standards Australia 3 OBJECTIVE The object
25、ive of this Standard is to specify the general mechanical and physical requirements for refrigerated display cabinets, for use by manufacturers, suppliers, purchasers, operators and regulators of these systems. 4 CONSTRUCTION 4.1 General 4.1.1 Strength and rigidity The cabinet and its parts shall be
26、 constructed with adequate strength and rigidity for normal conditions of handling, transport and use. Attention shall be given to the following points: (a) Interior fittings, including shelves, baskets, rails, etc., and their supports, shall be sufficiently strong for the duty required. (b) Where s
27、liding shelves, baskets, trays or drawers are fitted, they shall retain their shape and ease of movement when fully loaded. (c) Any fitments that are provided with stops to prevent accidental removal shall be self- supporting when fully loaded and withdrawn to the limit of the stops. 4.1.2 Guarding
28、Any parts (for example, defrost and drip-tray heaters), which might in normal circumstances constitute an accident hazard, shall, as far as it is reasonably practicable, be effectively guarded when the cabinet and associated refrigerating system are installed and operating. The instructions for use
29、and cleaning (see Clause 7.3(c) shall draw attention to any possible hazards that are not effectively guarded. 4.1.3 Pipes and connections Pipes and connections to moving or resiliently mounted parts shall be arranged so as not to foul or transmit harmful vibrations to other parts. All other pipes a
30、nd connections shall be securely anchored, and sufficient free length and/or vibration eliminators shall be provided to prevent failure due to fatigue. Where necessary, pipes and valves shall be adequately thermally insulated. 4.1.4 Glass breakage Where lighting tubes, glass panels and/or mirrors ar
31、e used, the risk of chipping or splintering shall be minimized. NOTE: See AS/NZS 60335.2.89. 4.1.5 Sharp edges There shall be no sharp edges or corners liable to cause injury under normal conditions of use. 4.1.6 Condensate drainage Where drains, drip trays or evaporation receptacles are fitted, the
32、y shall have ample capacity and shall be easily accessible for cleaning. Any condensate or defrost water receptacle, or group of receptacles, required to be emptied manually shall have a capacity equivalent to at least 48 h of normal operation in the appropriate climate class for which the cabinet i
33、s intended. A1 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 21 Oct 2008 AS 1731.22003 6 Standards Australia .au 4.1.7 Doors and lids Door fasteners and hinges under normal conditions of use shall be smooth and positive in action, and shall be designed to function properly without undue wear. When an
34、y doors or lids that are provided to ensure an air seal to the refrigerated space are closed, there shall be no undue leakage of ambient air into the interior. The doors or lids shall not open of their own accord. The gasket shall be made from a material whose characteristics are compatible with the
35、 operating conditions (especially temperatures). If the fastening device is mechanical, a stop or other means shall be provided to prevent the gasket from being excessively deformed. The effectiveness of doors or lids that are provided to ensure a seal may be tested by inserting a strip of paper 50
36、mm wide, 0.09 mm thick, and of a suitable length, at any point of the seal and closing the door or lid normally on it. The strip of paper shall not slide freely. NOTES: 1 Attention is drawn to the fact that some cabinets having doors provided to ensure an air seal are fitted with decompression valve
37、s, which allow air to penetrate for a short period of time so that any drop in pressure created inside the cabinet may be compensated. No test is required for such valves. 2 The most unfavourable points may be found by inspecting the contact of the seal with the cabinet closed and lit from the insid
38、e. For cabinets having a gross volume of at least 60 L it shall be possible to open the door or lid from the inside. The force required for opening the door or the lid shall not exceed 70 N (see AS/NZS 60335.2.89 for details of test method). 4.1.8 Joints and seams All joints and seams within the net
39、 volume shall be designed and constructed to prevent the accumulation of potentially contaminating substances and be easy cleanable. 4.1.9 Sneeze guard For cabinets designed for the display and sale of unpacked food products, the front facade shall constitute a guard against risks of contamination e
40、manating from consumers through handling, coughing, etc. NOTE: Specific dimensions for sneeze guards may be specified in some jurisdictions. 4.2 Materials 4.2.1 General The materials shall be durable and shall not favour the development of mould or emit odours when tested in accordance with AS 1731.
41、10. Under normal conditions of use, materials in contact with food products shall be resistant to moisture and shall neither be toxic nor contaminate foods. 4.2.2 Wear resistance Internal and external finishes shall be resistant to wear and capable of being cleaned effectively and hygienically. Fini
42、shes shall not crack, chip, flake, rub off or soften under normal conditions of use or during cleaning. 4.2.3 Corrosion resistance Metal parts, used in the construction of cabinets, shall have resistance to corrosion appropriate to their location and function. Accessed by UNIVERSITY OF SOUTH AUSTRAL
43、IA on 21 Oct 2008 7 AS 1731.22003 .au Standards Australia 4.3 Thermal insulation 4.3.1 Efficiency The thermal insulation shall be efficient and permanently fixed. In particular the insulating material shall not be subject to shrinkage and shall not allow, under normal working conditions, an accumula
44、tion of moisture. No running water shall appear externally when the refrigerated display cabinet is subjected to the water vapour condensation test specified in AS 1731.8. 4.3.2 Vapour barrier Suitable means shall be used to prevent deterioration of the thermal insulation by the ingress of moisture.
45、 4.3.3 Containment of insulation material Where the insulation space is vented to the inside, it shall be ensured that particles of the insulation material cannot escape into the food display compartment. For fibrous insulation materials, it shall not be possible to insert a rigid probe of 1 mm diam
46、eter through any aperture that allows access to the insulating material, the probe being applied with negligible force. 4.4 Refrigerating system 4.4.1 Design and construction The design and construction of all parts of the refrigerating system subject to internal pressure shall take into account the
47、 maximum working pressure to which they will be subjected when the cabinet is in operation or at rest. For refrigerated display cabinets with integral condensing unit or components thereof that are charged with refrigerant before transportation, the maximum ambient temperature during transit shall b
48、e taken into account. All refrigerant-containing components shall be in accordance with AS/NZS 1677.2. 4.4.2 Condensation There shall be suitable means to prevent water condensed on cold surfaces of the cabinet and its parts from harmfully affecting the operation of the refrigerating system or its c
49、ontrols. 4.4.3 System protection For cabinets fitted with doors or lids, the refrigerating system shall suffer no damage if any door or lid in the cabinet is left open while the cabinet is operating in an ambient temperature corresponding to the climate class (see AS 1731.4) for which the cabinet is intended. NOTE: When the door or lid is kept open under normal operating conditions (for example during product loading) or is left open accidentally,
链接地址:https://www.31doc.com/p-3729675.html