1、BRITISH STANDARD BS7460:1991 Code of practice for Use of spray extraction machines on carpets and soft floor coverings in hospitalsBS7460:1991 This BritishStandard, having been prepared under the directionof the Light Electrical Engineering StandardsPolicy Committee, waspublished underthe authority
2、of the Standards Board and comesintoeffect on 30September1991 BSI01-2000 The following BSI references relate to the work on this standard: Committee reference LEL/161 Draft for comment90/33720 DC ISBN 0 580 19816 2 Committees responsible for this BritishStandard The preparation of this BritishStanda
3、rd was entrusted by the Light Electrical Engineering Standards Policy Committee (LEL/-) to Technical Committee LEL/161, upon which the following bodies were represented: Association for Consumer Research (ACRE) Association of Consulting Scientists Association of Control Manufacturers (TACMA) (BEAMA
4、Ltd.) Association of Manufacturers of Domestic Electrical Appliances British Cable Makers Confederation British Electrotechnical Approvals Board British Gas plc British Lawnmower Manufacturers Federation British Retailers Association Catering Equipment Manufacturers Association Consumer Policy Commi
5、ttee of BSI Department of Trade and Industry (Consumer Safety Unit, CA Division) Electrical Installation Equipment Manufacturers Association (BEAMA Ltd.) Electricity Industry in United Kingdom Home Office Institute of Trading Standards Administration Institution of Electrical Engineers Lighting Indu
6、stry Federation Ltd. Loss Prevention Council Portable Electric Tool Manufacturers Association Rotating Electrical Machines Association (BEAMA Ltd.) Royal Society for the Prevention of Accidents Small Electrical Appliances Marketing Association The following bodies were also represented in the drafti
7、ng of the standard, through subcommittees and panels: Asbestos Removal Contractors Association Association of High Pressure Water Jetting Contractors British Carpet Technical Centre Department of Health Hire Association Europe Industrial Cleaning Machine Manufacturers Association (BEAMA Ltd.) Janito
8、rial Suppliers Association Ltd. Scottish Health Services Amendments issued since publication Amd. No. Date CommentsBS7460:1991 BSI 01-2000 i Contents Page Committees responsible Inside front cover Foreword ii 0 Introduction 1 1 Scope 1 2 Areas to be cleaned 1 3 Guidelines on suitability of equipment
9、 and materials for different category areas 1 4 Cleaning and decontamination procedure 2 Appendix A Example of cleaning and decontamination procedure for equipment used in category2 and3 areas 3 Publication(s) referred to Inside back coverBS7460:1991 ii BSI 01-2000 Foreword This BritishStandard has
10、been prepared under the direction of the Light Electrical Engineering Standards Policy Committee. Attention is drawn to the Health and Safety at Work etc. Act as applied to hospitals and work places. A British Standard does not purport to include all the necessary provisions of a contract. Users of
11、British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, pages1 to4, an inside back cover and a back cove
12、r. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS7460:1991 BSI 01-2000 1 0 Introduction Any item of equipment used in the room of an infected patient may become contaminated with
13、 the organisms causing the infection. This organism could be transferred to another room or ward by the equipment, but the risk of infecting another patient is small. Nevertheless, the risk to certain patients, e.g.highly immunosuppressed patients, is higher than normal and additional precautions sh
14、ould be taken. In any vacuum pick-up system, the exhausted air may discharge or redistribute small numbers of microbes. If this represents displacement of organisms within a room from one part to another or to another area, without substantially increasing the count or altering its nature, this woul
15、d be acceptable in all but the most sensitive areas. Some organisms are likely to grow in fluids or moist equipment and precautions are necessary to avoid spraying them into the environment. 1 Scope This BritishStandard gives recommendations which are intended to minimize any infection risk associat
16、ed with the use on carpets and soft floor coverings of hot water spray extraction cleaning machines designed to comply with BS5415-2.3. NOTEThe title of the publication referred to in this standard is given on the inside back cover. 2 Areas to be cleaned 2.1 General Areas within a hospital which are
17、 carpeted or covered by soft floor coverings may, for the purposes of being cleaned by hot water spray extraction machines, be divided into three categories. 2.2 Category1 areas Category1 includes carpeted areas in administrative offices, residences, corridors, etc., i.e.any not used for the followi
18、ng: a) treatment or diagnosis of patients; b) preparation, storage or service of food; c) preparation, storage or distribution of clinical or pharmaceutical products; d) storage, distribution or handling of clinical specimens or cadavers. Equipment may be transferred freely from any category1area to
19、 any other category1area and no special restrictions need be placed on the equipment for use in these areas. 2.3 Category2 areas Category2 includes carpeted areas used for the following: a) treatment or diagnosis of patients; b) preparation, storage or service of food. Equipment used in a category2
20、area should be cleaned and decontaminated in accordance with a written procedure (seeAppendix A) as a matter of hospital policy (seeclause4). 2.4 Category3 areas 2.4.1 General Category3 includes carpeted areas at special risk, including areas used for the treatment of patients with suppressed immuni
21、ty, children under3 months old, patients suffering from infections requiring specific isolation measures, or any other area designated as a category3 area by a microbiologist or infection control doctor. NOTEAreas used for such purposes do not normally have a carpet or soft floor covering. 2.4.2 Res
22、trictions of use in a category3 area Spray extraction machines should not be used in a category3 area without the prior agreement of the microbiologist or infection control doctor who should consider the risk associated with transfer of organisms to or from other areas, the need to restrict entry of
23、 staff and the need to implement decontamination procedures prior to cleaning, before agreeing to their use. If use is agreed, equipment used in a category3 area should be cleaned and decontaminated in accordance with a written procedure (seeAppendix A) as a matter of hospital policy (seeclause4). E
24、quipment should not be transferred from any category3 area to any other category3 area without prior consultation with the infection control doctor. Prohibition or further limitation may be imposed by the microbiologist or infection control doctor if considered necessary. 3 Guidelines on suitability
25、 of equipment and materials for different category areas 3.1 Category1 areas There are no special microbiological requirements for equipment used in category1 areas.BS7460:1991 2 BSI 01-2000 3.2 Category2 and3 areas Equipment for use in category2 and3 areas should have a cleaning agent tank heater c
26、apable of heating the cleaning agent to a minimum temperature of70 C. Prior to purchase of a spray extraction machine, consideration should be given to the ease of cleaning and decontamination of it. Spray extraction machines should be examined and their suitability for use reviewed at regular inter
27、vals. 3.3 Cleaning agents The suitability and compatibility of any cleaning agents used in the machine for carpet cleaning in hospitals should be assessed by the microbiologist or infection control doctor. 4 Cleaning and decontamination procedure Written procedures for cleaning and decontamination o
28、f each type of equipment should be incorporated into the relevant hospital policy. Anexample of a suitable procedure for a hot water extraction machine is given in Appendix A.BS7460:1991 BSI 01-2000 3 Appendix AExample of cleaning and decontamination procedure for equipment used in category2 and3 ar
29、eas A.1 Cleaning procedure after each use The following steps should be carried out. a) Remove equipment from occupied areas before cleaning, which should be carried out as soon as is practicable. b) Empty clean and waste tanks. Fill clean tank with clean water. c) Switch on heater and allow to reac
30、h working temperature which should be at least70 C. d) Place the cleaning head in the waste tank or suitable receptacle and operate pump for3min at70 C or for1min at80 C. Care should be taken to prevent splashing of hot water during this operation. e) Turn off heater, remove vacuum hose from wand he
31、ad and place into the clean tank. Operate the vacuum motor until the clean tank and vacuum hose are drained. Wipe the clean tank dry. f) Empty the waste tank and wipe dry. g) Reconnect wand head and run the machine for5min with the wand head resting on a surface so that entry airflow is not restrict
32、ed. Operate the solution valve trigger and drain any remaining fluid into a suitable container. This is necessary to dry out the cleaning agent tube and will help to dry out the tanks. A.2 Before re-use The following steps should be carried out. a) Fill the clean tank with water and cleaning agent i
33、n accordance with manufacturers instructions. b) Switch on heater and allow to reach working temperature which should be at least70 C. c) Immerse the cleaning head in the waste tank or suitable receptacle and operate cleaning agent pump for3min at70 C or1min at80 C to disinfect the head and cleaning
34、 agent tubing. d) Empty waste tank if necessary. e) Top up clean tank if necessary and commence cleaning when the required temperature is reached.4 blankBS7460:1991 BSI 01-2000 Publication(s) referred to BS5415, Safety of electrical motor-operated industrial and commercial cleaning appliances. BS541
35、5-2.3, Specification for spray extraction appliances. BS7460:1991 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It
36、 is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful
37、if anyone finding an inaccuracy or ambiguity while using this BritishStandard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel:02089969000. Fax:02089967400. BSI offers members an individual updating service called PL
38、US which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel:02089969001. Fax:02089967001. In response to orders for international standard
39、s, it is BSI policy to supply the BSI implementation of those that have been published as BritishStandards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Ex
40、porters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel:02089967111. Fax:02089967048. Subscribing members of BSI are kept up to date with standards developments and receive substantial di
41、scounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel:02089967002. Fax:02089967001. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardiza
42、tion bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude
43、the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel:02089967070.
