Preview only show first 10 pages with watermark. For full document please download

Electric Clothes Washer-dryers For Household Use — Methods Of

   EMBED


Share

Transcript

BS EN 50229:2007 BRITISH STANDARD The European Standard EN 50229:2007 has the status of a British Standard ICS 97.060 12&23<,1*:,7+287%6,3(50,66,21(;&(37$63(50,77('%<&23<5,*+7/$: Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale --`,,```,,,,````-`-`,,`,,`,`,,`--- Electric clothes washer-dryers for household use — Methods of measuring the performance BS EN 50229:2007 National foreword This British Standard is the UK implementation of EN 50229:2007. It supersedes BS EN 50229:2001, which will be withdrawn on 1 June 2010. The UK participation in its preparation was entrusted by Technical Committee CPL/59, Performance of household electrical appliances, to Subcommittee 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. Users are responsible for its correct application. --`,,```,,,,````-`-`,,`,,`,`,,`--- Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2007 Amendments issued since publication Amd. No. Date Comments © BSI 2007 ISBN 978 0 580 59870 8 Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale EUROPEAN STANDARD EN 50229 NORME EUROPÉENNE July 2007 EUROPÄISCHE NORM ICS 97.060 Supersedes EN 50229:2001 English version Elektrische Wasch-Trockner für den Hausgebrauch Prüfverfahren zur Bestimmung der Gebrauchseigenschaften Lavantes-séchantes électriques à usage domestique Méthodes de mesure de l'aptitude à la fonction This European Standard was approved by CENELEC on 2007-06-01. 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 obtained on application to the Central Secretariat 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 to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels © 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50229:2007 E Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale --`,,```,,,,````-`-`,,`,,`,`,,`--- Electric clothes washer-dryers for household use Methods of measuring the performance EN 50229:2007 -2- Foreword This European Standard was prepared by the Technical Committee CENELEC TC 59X, Consumer information related to household electrical appliances, according to the decisions made by nd rd CLC/TC 59X at the meeting in September 22 /23 2005 and of CLC/TC 59X WG 1 at the meeting st nd 21 /22 September 2005. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50229 on 2007-06-01. This European Standard supersedes EN 50229:2001. The following dates were fixed: – – latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2008-06-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2010-06-01 It is based on the EN 50229:2001 taking into account the current versions of EN 60456:2005 and EN 61121:2005. Significant technical differences to the revised second edition, EN 50229:2001, are: --`,,```,,,,````-`-`,,`,,`,`,,`--- • revised referring to revised EN 60456; • revised referring to revised EN 61121. This European Standard has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and covers essential requirements of EC Directive 96/60/EC implementing Council Directive 92/75/EEC on ”Indication by labelling and standard product information of the consumption of energy and other resources by household appliances“. It deals only with those test procedures that are required for the EC Directive as described in the scope of this standard. It also defines permitted tolerances to values declared by the manufacturer and control procedures for checking these values. _____________ Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale -3- EN 50229:2007 Contents Page 1 Scope........................................................................................................................................... 4 2 Normative references ................................................................................................................. 4 3 Definitions ................................................................................................................................... 5 4 External dimensions ................................................................................................................... 5 5 Range of rated capacity.............................................................................................................. 5 6 General conditions for measurements ...................................................................................... 6 7 Materials ...................................................................................................................................... 6 8 Instrumentation and accuracy ................................................................................................... 6 9 Methods of measurement........................................................................................................... 6 10 Tolerances and control procedures ........................................................................................ 11 Annex A (normative) Splitting of the base load into two or three partial loads............................ 12 Annex B (informative) Suggested form in which the data is reported........................................... 13 Bibliography ..................................................................................................................................... 14 --`,,```,,,,````-`-`,,`,,`,`,,`--- Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale -4- EN 50229:2007 1 Scope This European Standard specifies the test methods which shall be applied in accordance with the Commission Directive 96/60/EC of 19 September 1996 implementing Council Directive 92/75/EEC with regard to energy labelling of household combined washer-driers. It deals with – performance criteria, including energy and water consumption, for the 60 °C cotton wash programme as specified in EN 60456:2005, – energy and water consumption of the drying cycle based on the “Dry cotton programme“ as specified in EN 61121:2005, – permitted tolerances to values declared by the manufacturer and control procedures for checking these declared values. This European Standard is concerned neither with safety nor with performance requirements. NOTE Washer-dryers for communal use in blocks of flats or in launderettes are within the scope of this standard, but machines for commercial laundries are not included. 2 Normative references The following referenced documents are indispensable 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 60456 2005 Clothes washing machines for household use – Methods for measuring the performance (IEC 60456:2003, mod.) EN 60704-2-4 Household and similar electrical appliances – Test code for the determination of airborne acoustical noise – Part 2-4: Particular requirements for washing machines and spin extractors (IEC 60704-2-4) EN 60704-2-6 Household and similar electrical appliances – Test code for the determination of airborne acoustical noise – Part 2-6: Particular requirements for tumble dryers (IEC 60704-2-6) EN 60704-3 Household and similar electrical appliances – Test code for the determination of airborne acoustical noise – Part 3: Procedure for determining and verifying declared noise emission values (IEC 60704-3) EN 61121 2005 Tumble dryers for household use – Methods for measuring the performance (IEC 61121:2002, mod. + corr. Apr. 2003 + corr. Sept. 2003) --`,,```,,,,````-`-`,,`,,`,`,,`--- Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale -5- EN 50229:2007 3 Definitions For the purpose of this document, the terms and definitions in Clause 3 of EN 60456 apply, except for 3.1.12 and 3.1.13. Additional definitions: 3.101 rated washing capacity maximum mass of conditioned textiles (conditioned according to Subclause 6.3.3 in EN 60456), in kg, which the manufacturer declares can be treated in one complete washing cycle 3.102 rated drying capacity maximum mass of conditioned textiles (conditioned according to Subclause 6.3.3 in EN 60456), in kg, which the manufacturer declares can be treated in one complete single drying operation 3.103 complete operation cycle complete washing and drying process, as defined by the required programme(s), consisting of a the washing cycle and the drying cycle 3.104 washing cycle complete washing process, as defined by the required programme, consisting of a series of different operations (wash, rinse, spin) 3.105 drying cycle complete drying process, as defined by the required programme, consisting of a series of different operations (heat, cool down). The drying cycle comprise drying of all partial loads, if the base load is split up according to 9.4.3.2 – c) 3.106 automatic drying drying process which automatically switches off when a certain moisture content of the load is reached 4 External dimensions See Subclause 3.3 of EN 60456. --`,,```,,,,````-`-`,,`,,`,`,,`--- 5 Range of rated capacity The rated capacity for measurements to determine values to be declared for the 60 °C cotton cycle according to the Commission’s Directive on energy labelling is the value declared by the manufacturer as highest amount of cotton textiles to be washed, given in the instruction manual or on the energy label supplied with the machine, whatever is higher. If the rated capacity is not declared, the rated capacity for a cotton load shall be deduced from the volume of the drum according to the following ratio: – horizontal drum washing machine Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS 1 kg / 13 l. Not for Resale EN 50229:2007 -6- If the rated capacity for easy care textiles and woollens is not specified by the manufacturer, the load shall be respectively 40 % and 20 % of that for cotton. When the manufacturer gives a range of values for the rated capacity for a particular textile type, the highest value shall be used. NOTE For different textile types the rated capacity of an appliance is usually different. 6 General conditions for measurements See Clause 5 of EN 60456, however 5.2.2 and 5.2.3 are modified and 5.2.4 is added as follows: 6.2.2 Water supply Delete the last paragraph of Subclause 5.2.2 of EN 60456: “for appliances without heating element…”. 6.2.3 Ambient temperature The ambient temperature shall be in accordance with Subclause 6.2.3 in EN 61121. 6.2.4 Ambient humidity The ambient humidity shall be in accordance with Subclause 6.2.4 in EN 61121. 7 Materials See Clause 6 of EN 60456. NOTE IEC reference detergent A will be replaced in the future by a new reference detergent A*. 8 Instrumentation and accuracy See Clause 7 of EN 60456. 9 Methods of measurement 9.1 Determination of the washing performance See Clause 8 of EN 60456 with regard to the cotton test load. 9.2 Determination of the spin extraction See Clause 10 of EN 60456. 9.3 Determination of the maximum spin speed (rpm) See Clause Z1 of EN 60456. --`,,```,,,,````-`-`,,`,,`,`,,`--- Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale -7- EN 50229:2007 9.4 Determination of the water and energy consumption and programme time 9.4.1 General This clause specifies the procedure and evaluation for the determination of water and energy consumption during washing, spin extraction and drying. It also specifies the method for the determination of the duration of these cycles and of the complete operating cycle. NOTE The tests in this clause may be combined with the tests in 9.1 and 9.2. 9.4.2 Washing cycle The measurement shall be carried out in accordance with Subclause 5.1 and Clause 11 of EN 60456. 9.4.3 9.4.3.1 Drying cycle General The mass of the conditioned base load is recorded as W0. The number of valid drying cycles shall be five. 9.4.3.2 Procedure a) A washing cycle shall be performed according to 9.1. b) Immediately when the washing cycle is finished the strips are removed from the test load and the initial mass of the base load is recorded in kg as Wi. The actual initial moisture content is calculated as: µi = Wi − W0 ×100 W0 (1) where c) µI is the actual initial moisture content, Wi is the actual initial mass of the base load after the washing cycle, W0 is the mass of the conditioned base load. The base load Wi shall be dried under the conditions specified below (dry cotton) to nominal final moisture content µ fo = 0 %, allowable range for µ fo: -3 % to +3 %. 1) [Table 3 in Subclause 9.2.1 of EN 61121] The base load shall be divided according to the instruction of the manufacturer. If no instruction is given and the rated drying capacity is lower than the rated washing capacity, the base load is divided in nearly equal partial loads each part not being above the rated drying capacity. The division of the base load shall be according to Annex A. In this case all items of the base load shall be marked before starting the washing cycle, in order to identify to which partial load each item belongs. The partial loads shall consist of the same items throughout the test. 2) Within 5 min after finishing the washing cycle the drying of the first partial load has to be started. The other partial load(s) shall be kept in (a) closed plastic bag(s). For washer-dryers with automatic drying the programme under test is selected and the washer dryer is started. For washer-dryers without automatic drying the timer is set to obtain the final moisture given above under c). The time required for this is determined by monitoring the drying process. This can be done by either having the washer dryer placed on a platform scale or by pre-testing. --`,,```,,,,````-`-`,,`,,`,`,,`--- Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale -8- EN 50229:2007 d) 3) When the programme has terminated and the washer-dryer has stopped, the partial load is then removed within 5 min and immediately weighed. This weight is recorded as Wfp1. 4) Within 5 min after finishing the drying of the first partial load the drying of the second partial load shall be started. Immediately after drying its weight is recorded as Wfp2. 5) The remaining partial load(s), if any, shall be dried as described in 4), the weight recorded as Wfp3, etc. After drying of all partial loads the following measurements shall be carried out: 1) Drying time The drying time in min is the sum of the drying times of all partial loads including the cool down period(s) measured during the tests according to 9.4.3.2 c). lf the washer-dryer has no cool down period, it shall be reported. The drying time does not include the 5 min preparation time as specified in item 2) and item 4) of 9.4.3.2 c). 2) Energy consumption of the drying cycle The energy consumption is the sum of the energy consumption of the partial loads measured during the tests according to 9.4.3.2 c) and reported in kWh. 3) Water consumption of the drying cycle The water consumption, if any, is the sum of the water consumption of the partial loads measured during the tests according to 9.4.3.2 c) and reported in litres [l]. 4) Calculation of the mass of the base load The mass of the base load after drying, the final mass Wf , is calculated according to the following formula: n W f = ∑ W fpn (2) 1 where 5) Wf is the final mass of the base load in kg after drying, Wfpn are the mass of the partial loads 1 to n in kg after drying. The final moisture content The moisture content µ f is calculated as follows: µf = i) W f − W0 W0 ×100 (3) Washer-dryer without automatic drying: If µ f , calculated according to formula (3), is within the allowable range as specified above under c), the test cycle is valid and the values are corrected as described under 9.4.3.3. If µ f is not within the limits, the data shall not be used for evaluation. Such a test cycle can be considered to be a trial or pre-testing cycle. When the washer-dryer does not reach the required moisture content after its maximum drying time the fact is reported and the test is stopped. ii) Washer-dryer with automatic drying: When the final moisture content µ f of a drying cycle is below the upper limit of the allowable range given above under c) the drying cycle is valid and the values are corrected as described under 9.4.3.3. --`,,```,,,,````-`-`,,`,,`,`,,`--- Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale -9- EN 50229:2007 When the final moisture content µ f is above the upper limit of the allowable range the drying cycle is not valid and has to be retested using a program which has the next lower final moisture content (e.g. use “extra dry" instead of “dry cotton”). This shall be stated in the report. If there is no program available which gives a lower final moisture content the fact is reported and the test is stopped. When the final moisture content µ f is below the lower limit of the allowable range given above under c) the values are not corrected. 9.4.3.3 9.4.3.3.1 Evaluation Drying time tD = tm (µ (µ i − µf0) i −µf ) × W W0 (4) where tD is the corrected drying time in min, tm is the measured drying time in min, µ fo is the nominal final moisture content as given in 9.4.3.2 c), without tolerances, µf is the final moisture content calculated according to formula 3, W is the rated washing capacity in kg, W0 is the mass of the conditioned base load in kg. 9.4.3.3.2 Energy consumption The energy consumption measured in 9.4.3.2 d) 2) is corrected by the following formula: E D = Em (µ − µ ) W (µ − µ ) × W i f0 i f 0 (5) where ED is the corrected energy consumption for the drying cycle in kWh, Em is the measured energy consumption in kWh. 9.4.3.3.3 Water consumption The water consumption measured in 9.4.3.2 d) 3) is corrected by the following formula: L D = Lm (µ (µ i − µf0) i −µf ) × W W0 (6) where LD is the corrected water consumption for the drying cycle in litres [l], Lm is the measured water consumption in litres [l]. Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale --`,,```,,,,````-`-`,,`,,`,`,,`--- The drying time measured in 9.4.3.2 d) 1) is corrected by the following formula: EN 50229:2007 9.4.4 - 10 - Complete operation cycle The water and energy consumption and programme time of the complete operation cycle are the sums of the results of the washing cycle according to 9.4.2 and of the drying cycle according to 9.4.3. 9.4.5 Data to be reported --`,,```,,,,````-`-`,,`,,`,`,,`--- a) Name of the cycle tested. b) Supply voltage at which measurements are made. c) Energy consumption expressed in kWh. The average value of the five or more operating cycles is reported to the second decimal place of d) e) 1) the washing cycle, 2) the drying cycle, 3) the complete operating cycle. Water consumption measured to the nearest 0,1 l. The average value of the five or more operating cycles is reported to the nearest whole number of litres of 1) the washing cycle, 2) the drying cycle, 3) the complete operating cycle. Programme time in min for the rated washing capacity of 1) the washing cycle, 2) the drying cycle, 3) the complete operation cycle. f) Temperature of the supply water. g) Ambient temperature. h) Ambient humidity. i) Actual mass in kg of the test load used for washing and of the conditioned base load W0 used for drying, both measured at the beginning of the complete operating cycle. j) Max spin speed of the washing cycle. k) Conductivity of water supply, only for conductivity controlled washer-dryers. NOTE A suggested form for reporting data is given in Annex B. 9.5 Determination of the airborne acoustical noise Noise emission values, when declared, shall be measured separately for the washing, spinning and drying cycles according to EN 60704-2-4 and EN 60704-2-6. The same programmes used for the tests under Clause 9 shall be used. Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale - 11 - EN 50229:2007 10 Tolerances and control procedures 10.1 Energy consumption 10.1.1 Washing cycle See Z3.1 of EN 60456. 10.1.2 Complete operating cycle See Z3.1 of EN 60456 but replace Clause 11 by 9.4.4 of this standard. 10.2 Water consumption 10.2.1 Washing cycle See Z3.2 of EN 60456. 10.2.2 Complete operating cycle See Z3.2 of EN 60456 but replace Clause 11 by 9.4.4 of this standard. 10.3 Spin speed See Z3.3 of EN 60456. 10.4 Spin extraction See Z3.4 of EN 60456. 10.5 Washing performance See Z3.5 of EN 60456. 10.6 Programme time The programme time of the complete operating cycle, measured and determined according to 9.4 shall not be greater than the value declared by the manufacturer plus 15 %. 10.7 Noise emission --`,,```,,,,````-`-`,,`,,`,`,,`--- Noise emission values, when declared, shall be determined and verified according to EN 60704-3. Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS --`,,```,,,,````-`-`,,`,,`,`,,`--- Not for Resale b a 3 3 3 3 8 8,5 9 9,5 22 20 18 16 14 12 12 10 8 8 6 6 4 3 4 3 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 Sheets 10 9 8 7 6 5 6 5 4 4 3 3 2 2 0 0 0 12 11 10 9 8 7 6 5 4 4 3 3 2 1 4 3 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Sheets 8 7 6 6 5 4 3 2 2 2 1 1 0 0 0 0 0 Pillow cases Partial load 1 Hand towels are divided between the partial loads to make the weight of the partial loads as equal as possible. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 Pillow cases Partial load 2 b Sheets Number of Pillow cases Partial load 1 Load split up into Hand towels to be added in order to reach the rated capacity. 3 3 7,5 10 2 2 2 6 6,5 2 5,5 7 2 4 2 2 3,5 5 2 3 4,5 1 1 2,5 1 a Pillow cases Number of Sheets 2 kg Rated washing capacity Complete load 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 Sheets b 7 7 6 5 5 4 3 2 2 2 1 1 0 0 2 2 1 Pillow cases Number of Partial load 2 Load split up into Splitting of the base load into two or three partial loads Annex A (normative) 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 Sheets 7 6 6 5 4 4 6 6 4 4 4 4 4 3 2 1 1 Pillow cases Partial load 3 EN 50229:2007 - 12 - - 13 - EN 50229:2007 Annex B (informative) Suggested form in which the data is reported (Five complete operation cycles) Programme(s) tested: Supply voltage during test [V]: Temperature of supply water [°C]: Conductivity of supply water [mS/m]: (see NOTE) --`,,```,,,,````-`-`,,`,,`,`,,`--- Programme(s) recommended by the manufacturer: Base load W0 [kg]: Mean value of initial mass Wi [kg]: Ambient humidity [%]: Max spin speed of washing cycle [rpm]: For following operation cycle(s) the final moisture content µf was below the lower limit: Energy consumption [kWh] Operation cycle Total Washing Drying Water consumption [l] Ambient temperature [°C]: Programme duration [min] Washing Drying Total Washing Drying Total EW ED E W + ED LW LD LW + LD tW tD tW + tD Mean value: Mean value: Mean value: Mean value: Mean value: Mean value: Mean value: Mean value: Mean value: First Second Third Fourth Fifth NOTE Only for conductivity controlled washer-dryers. Comments: Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale EN 50229:2007 - 14 - Bibliography Council Directive 92/75/EEC of 22 September 1992 on the indication by labelling and standard product information of the consumption of energy and other resources by household appliances Official Journal L 297, 13/10/1992 Commission Directive 96/60/EC of 19 September 1996 implementing Council Directive 92/75/EEC with regard to energy labelling of household combined washer-driers Official Journal L 266, 18/10/1996 EN 60704-1, Household and similar electrical appliances – Test code for the determination of airborne acoustical noise – Part 1: General requirements (IEC 60704-1) --`,,```,,,,````-`-`,,`,,`,`,,`--- Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale --`,,```,,,,````-`-`,,`,,`,`,,`--- Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS blank Not for Resale BS EN 50229:2007 BSI — British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards 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 if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400. BSI offers members an individual updating service called PLUS 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: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: [email protected]. Standards are also available from the BSI website at http://www.bsi-global.com. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, 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 Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. Email: [email protected]. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 7001. Email: [email protected]. Information regarding online access to British Standards via British Standards Online can be found at http://www.bsi-global.com/bsonline. Further information about BSI is available on the BSI website at http://www.bsi-global.com. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization 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 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. BSI 389 Chiswick High Road London W4 4AL Details and advice can be obtained from the Copyright & Licensing Manager. Tel: +44 (0)20 8996 7070. Fax: +44 (0)20 8996 7553. Email: [email protected]. --`,,```,,,,````-`-`,,`,,`,`,,`--- Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale