EN 50593-2017 en Electric dishwashers for commercial use - Test methods for measuring the performance.pdf

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1、BS EN 50593:2017Electric dishwashers forcommercial use Testmethods for measuring theperformanceBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 50593:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 50593:2017.The UK par

2、ticipation in its preparation was entrusted to Technical Committee CPL/59/1, Dishwashers and washing machines.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Use

3、rs are responsible for its correct application. The British Standards Institution 2017.Published by BSI Standards Limited 2017ISBN 978 0 580 91649 6 ICS 97.040.40 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority

4、of the Standards Policy and Strategy Committee on 31 March 2017.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 50593:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50593 February 2017 ICS 97.040.40 English Version Electric dishwashers for commercial use - T

5、est methods for measuring the performance Lave-vaisselle lectriques pour usage collectif - Mthodes dessai pour la mesure de laptitude la fonction Elektrische Geschirrspler fr den gewerblichen Gebrauch - Messverfahren fr Gebrauchseigenschaften This European Standard was approved by CENELEC on 2017-01

6、-16. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obta

7、ined on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified t

8、o the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece

9、, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation

10、Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50593:2017 E BS EN 50593:2017EN 50593:2017 (E) 2

11、 Contents Page European foreword . 4 1 Scope 5 2 Normative references . 5 3 Terms and definitions. 5 4 List of measurements . 8 5 General conditions for measurements 8 5.1 General . 8 5.2 Conditioning of the machine under test and sequence of test procedures 8 5.3 Power supply . 9 5.4 Test programme

12、 9 5.5 Ambient conditions . 9 5.6 Water supply 9 5.6.1 General . 9 5.6.2 Water supply Temperature . 9 5.6.3 Hardness 9 5.6.4 Water Pressure 9 5.7 Detergent . 9 5.8 Rinse aid 10 5.9 Load . 10 5.10 Temperature measurement . 10 6 Cleaning and resoiling performance test 10 6.1 Purpose and general descri

13、ption 10 6.2 Description of the cleaning performance test procedure 10 6.2.1 Preparation 10 6.2.2 Formulation of test soil . 12 6.2.3 Application of test soil 13 6.3 Evaluation 14 6.3.1 General . 14 6.3.2 Calculation of performance results 15 7 Energy, water consumption and time measurement . 15 7.1

14、 General information. 15 7.2 Measurement method 15 7.2.1 General . 15 7.2.2 Preparation 15 7.2.3 Initial fill and Start-up time 16 7.2.4 Energy, water consumption and programme/cycle time 16 7.2.5 Power consumption Ready-to-use mode . 17 8 Data to be reported . 18 8.1 Laboratory and test data . 18 8

15、.2 Evaluation sheet for cleaning performance calculation 20 Annex A (normative) Test materials for laboratories . 22 A.1 Reference Detergent 22 BS EN 50593:2017EN 50593:2017 (E) 3 A.2 Reference rinse aid . 22 A.3 Basic cleaning detergent 23 A.4 Load . 23 A.5 Test pipette/dispenser . 24 A.6 Stainless

16、 steel holder and support . 25 A.7 Sesame seeds 26 Annex B (informative) Flowchart Test sequence . 27 Bibliography 28 BS EN 50593:2017EN 50593:2017 (E) 4 European foreword This document (EN 50593:2017) has been prepared by CLC/TC 59X “Performance of household and similar electrical appliances”. The

17、following dates are fixed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2018-01-16 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2020-01-16 A

18、ttention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CENELEC by the European Commission and th

19、e European Free Trade Association. BS EN 50593:2017EN 50593:2017 (E) 5 1 Scope This European Standard applies for manually loaded undercounter one-tank and one-tank hood type electrically heated dishwashing machines for washing plates, dishes, glassware, cutlery and similar articles. These machines

20、are used in commercial kitchens, such as restaurants, canteens, hospitals and in businesses such as bakeries, butcher shops, etc. This European Standard does not apply to commercial dishwashers with transport systems (flight-type and rack conveyor dishwashers) and utensil washers. This European Stan

21、dard does not apply to undercounter water-change dishwashers. This European Standard does not apply to appliances designed exclusively for industrial purposes. The object is to state and define the principal performance characteristics of electric dishwashers for commercial use and to describe the s

22、tandard methods of measuring these characteristics. The characteristics are measured by washing plates. This European Standard does not address safety requirements. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable

23、for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 10088 (all parts), Stainless steels 3 Terms and definitions For the purposes of this document, the

24、following terms and definitions apply. NOTE The following definitions are related to the appliance. 3.1 commercial dishwasher electric dishwasher which is specially designed for use in commercial environment and which cleans and rinses dishes, glasses, cutlery, and, in some cases, cooking utensils b

25、y chemical, mechanical, thermal and electrical treatment Note 1 to entry: Commercial dishwashers evaluated with a specific drying operation at the end of the programme should be declared as such in the test report. 3.1.1 under counter one tank dishwasher manually loaded, programmable, undercounter f

26、ront loader with one detergent-circulating zone and a fresh water rinse Note 1 to entry: The washware is cleaned using a detergent solution that is regenerated. The technical equipment is geared to the performance that is required in the specific application. 3.1.2 hood-type dishwasher manually load

27、ed, programmable, hood-type, pass-through machine with typically one detergent-circulating zone and a fresh water rinse 3.2 operation event that occurs during the dishwasher programme such as cleaning and rinsing BS EN 50593:2017EN 50593:2017 (E) 6 3.3 programme series of operations which are pre-de

28、fined within the dishwasher and which are declared by the manufacturer as suitable for cleaning certain washware 3.4 cycle complete cleaning process, as defined by the programme selected, consisting of a series of operations (washing, rinsing, drying etc.) and including any operations that occur aft

29、er the completion of the programme Note 1 to entry: Examples of operations that may occur after the completion of the programme are refilling of the boiler, heating, pumps, fans, etc. 3.5 programme time time which is measured from the initiation of the programme (excluding any user programmed delay)

30、 until an end of programme indicator is showing the end of the programme Note 1 to entry: If there is no end of programme indicator, the programme time is equal to the cycle time. 3.6 cycle time time which is measured from the initiation of the programme (excluding any user programmed delay) until a

31、ll activity ceases (i.e. the end of the cycle) 3.7 automatic dispenser device activated automatically which injects or dispenses detergent or rinse agent one or more times into the dishwasher at predetermined points in the dishwasher cycle 3.8 ready-to-use mode mode after which the dishwasher has be

32、en filled with water, the water has been heated (ready for operation) and the machine is ready to start the cycle as indicated in the instructions for use 3.9 rack removable support for holding washware in the dishwasher 3.10 energy consuming element electrical consumer (e.g. heaters, fans, pumps, e

33、tc.) in the dishwasher Note 1 to entry: The control system is not considered as an energy consuming element. 3.11 washware materials and utensils that come into contact with foodstuffs and re-usable crates/containers which are cleaned in a commercial dishwasher Note 1 to entry: Examples of washware

34、are plates, crockery, cutlery, kitchen equipment, glasses, pots, containers, crates and trays made of materials such as porcelain, plastic, glass, stainless steel and silver as well as coated materials. 3.12 treating agents chemical products used to clean or rinse, as rinse aids or descalers, when t

35、reating washware in dishwashers BS EN 50593:2017EN 50593:2017 (E) 7 3.12.1 detergent chemical product used to remove soiling from washware and which counteracts resoiling from the detergent solution 3.12.2 detergent solution water mixed with detergent in the detergent circulation tank 3.12.3 rinse a

36、id chemical agent added to the water in the final rinsing operation which decreases the interfacial tension of the rinse aid solution Note 1 to entry: It improves the drying effect and the reduction of water marks. 3.12.4 rinse aid solution fresh water mixed with rinse aid used for fresh water rinsi

37、ng 3.13 pre-cleaning removal of loose waste and leftover food on the washware and emptying of hollow vessels Note 1 to entry: Pre-cleaning is generally implemented by pushing the residue into waste containers and if possible by rinsing the washware with water. Pre-cleaning reduces the soiling of the

38、 dishwasher and improves the cleaning result. 3.14 ballast soil artificial soil for testing certain machine characteristics 3.15 fresh water rinsing washing process after cleaning during which the washware is sprayed with a rinse aid solution to remove residues of detergent solution, dissolved and u

39、ndissolved dirt particles 3.16 drying process in which the moisture drips, vaporises or evaporates from the surface of the washware 3.17 cleaning removal of soiling 3.18 re-soiling soiling of the washware e.g. on the rear side of the washware by the cleaning process which causes a deterioration of t

40、he cleaning result 3.19 contact time time during which the detergent solution is in contact with the washware 3.20 cleaning process process including at least one washing process and one fresh water rinsing process BS EN 50593:2017EN 50593:2017 (E) 8 3.21 operating time period during which the dishw

41、asher is operational 3.22 spray system sum of all pipelines, jets and spray pipes required to circulate and spray detergent and rinse aid solutions 3.23 water softener device which reduces the hardness of water 3.24 start-up time time needed for the initial fill 3.25 initial fill first water filling

42、 process between activation of the machine and reaching the ready-to-use mode 4 List of measurements The performance and consumption characteristics are determined as follows: cleaning and resoiling performance test according to Clause 6; energy, water consumption and time measurement according to C

43、lause 7. Rinsing performance measurement is under consideration. 5 General conditions for measurements 5.1 General The dishwasher manufacturers instructions regarding installation and use of the commercial dishwasher shall be followed, except if they stand in conflict. In this case this standard sha

44、ll prevail. The cleaning and resoiling performance test according to Clause 6 and the energy and water consumption and time measurement according to Clause 7 are done together. Note: deactivate the automatic start for appliances with automatic start cycle when the door/hood is closed. All testing sh

45、all be performed on the same machine. Before commencing measurements, the commercial dishwasher shall be checked to ensure that it is operating properly. All tests shall be started with the appliances at the ambient conditions according to 5.5 . For all tests, the appliance shall be free-standing in

46、 the room without any excess coverage other than originally equipped. All protective surface cover foils shall be removed. 5.2 Conditioning of the machine under test and sequence of test procedures Before conducting the performance tests, the dishwasher shall be initially filled and dosed with refer

47、ence detergent (specified in 5.7) and reference rinse aid (specified in 5.8). No additional cycles shall be carried out on the machine under test between the consecutive steps of the following procedures. All parts of the machine shall be inspected and any residues shall be removed. BS EN 50593:2017

48、EN 50593:2017 (E) 9 5.3 Power supply In every case the appliance is supplied at 230 V or 400 V and 50 Hz. The tolerance on power supply shall be 1 % for voltage and 1 % for frequency. The voltage and frequency shall be measured and recorded during the test. 5.4 Test programme The programme to be tes

49、ted shall be the one which cleans normally soiled washware (standard cleaning cycle). The manufacturer shall declare the programme to be used for testing. 5.5 Ambient conditions The following ambient conditions shall be maintained throughout the measurements. ambient temperature of the room: (23 2) C; relative humidity: (55 5) % rH; air velocity max: 1 m/s. The limit value for the air velocity shall only apply to the room area where the drying of the soiled plates is carried out (see 6.2.3). The ambient temperature and the relative humi