BS EN 13486-2002 Temperature recorders and thermometers for the transport storage and distribution of chilled frozen deep-frozen quick-frozen food and ice cream - Periodic verifica.pdf

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1、BRITISH STANDARD BS EN 13486:2002 The European Standard EN 13486:2002 has the status of a British Standard ICS 27.200; 97.130.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 13486:2002 This British Standard, having been prepared under the direction of the Engineering S

2、ector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 28 January 2002 BSI 28 January 2002 ISBN 0 580 38909 X National foreword This British Standard is the official English language version of EN 13486:2001. The UK participation in i

3、ts preparation was entrusted by Technical Committee RHE/19, Commercial refrigerated food cabinets (cold room and display cases), to Subcommittee RHE/19/-/6, Temperature recorders, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to

4、its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI

5、Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enqui

6、rers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises

7、 a front cover, an inside front cover, the EN title page, pages 2 to 12, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD NORME EUROPENNE E

8、UROPISCHE NORM EN 13486 November 2001 ICS 17.200.20; 67.260 English version Temperature recorders and thermometers for the transport, storage and distribution of chilled, frozen, deep-frozen/quick-frozen food and ice-cream Periodic verification Enregistreurs de temprature et thermomtres pour le tran

9、sport, lentreposage et la distribution des denres alimentaires rfrigres, congeles et surgeles et des crmes glaces Vrification priodique Temperaturregistriergerte und Thermometer fr den Transport, die Lagerung und die Verteilung von gekhlten, gefrorenen, tiefgefrorenen Lebensmitteln und Eiskrem Regel

10、mige Prfungen This European Standard was approved by CEN on 28 September 2001. CEN 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 bib

11、liographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN 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

12、 a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norw

13、ay, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CEN All rights of exploitation in any form and by any means reserved worldwide

14、 for CEN national Members. Ref. No. EN 13486:2001 EEN 13486:2001 (E) 2 Contents Page Foreword. 3 1 Scope . 4 2 Normative references .4 3 Terms and definitions.4 4 Frequency of verification .5 5 Method of verification of temperature measurement5 5.1 General . 5 5.2 Environmental conditions 5 5.3 Work

15、ing standard 5 5.4 Additional equipment 6 5.5 Procedure 6 5.6 Condition of acceptance . 7 6 Method of verification of duration of temperature recordings.7 6.1 General . 7 6.2 Verification of recording duration by making a test recording. 7 6.3 Verification of recording duration by other means 8 6.4

16、Conditions of acceptance of duration 8 7 Expression of results .8 Annex A (informative) Example of verification report 9 Annex B (informative) Life cycle sheet.11 Bibliography . 12EN 13486:2001 (E) 3 Foreword This European Standard has been prepared by Technical Committee CEN/TC 141, Pressure gauges

17、 Thermometers Means of measuring and/or recording temperature in the cold chain, the Secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2002, and conflictin

18、g national standards shall be withdrawn at the latest by May 2002. The Annexes A and B are informative. This standard contains a Bibliography. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Stand

19、ard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.EN 13486:2001 (E) 4 1 Scope The present document sets the verification procedure for temperature rec

20、orders and thermometers for measuring the air and the products intended to equip the means used for the transport, storage and distribution of chilled, frozen, deep-frozen/quick-frozen food and ice-cream and which comply with standards EN 12830 and EN 13485 (measurement classes and ranges). 2 Normat

21、ive references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of a

22、ny of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 12830, Temperature recorders for the transport, storage and distribution of chil

23、led, frozen, deep-frozen/quick-frozen food and ice-cream Tests, performance, suitability. EN 13485, Thermometers for measuring the air and product temperature for the transport, storage and distribution of chilled, frozen, deep-frozen/quick-frozen food and ice-cream Tests, performance, suitability.

24、EN 30012-1, Quality assurance requirements for measuring equipment Part 1: Metrological confirmation system for measuring equipment (ISO 10012-1:1992). EN ISO 9000, Quality management systems Fundamentals and vocabulary (ISO 9000:2000). 3 Terms and definitions For the purposes of this European Stand

25、ard, the terms and definitions of EN 12830, EN 13485, EN ISO 9000 and the following terms and definitions apply. 3.1 verification 1) confirmation and provision of evidence that the specified requirements have been fulfilled NOTE 1 In connection with the management of measuring equipment, verificatio

26、n provides a means for checking that the deviations between values indicated by a measuring instrument and corresponding known values of a measured quantity are consistently smaller than the maximum allowable error defined in a standard, regulation or specification peculiar to the management of the

27、measuring equipment. NOTE 2 The result of verification leads to a decision either to restore to service, or to perform adjustments, or to repair, or to downgrade, or to declare obsolete. A written trace of the verification performed is kept on the measuring instruments individual record. 3.2 maximum

28、 permissible errors; limits of permissible error (of a measuring instrument) 2) extreme values of an error permitted by specifications, regulations etc., for a given measuring instrument1) Definition of EN ISO 9000. 2) Definition of VIM.EN 13486:2001 (E) 5 3.3 working standard 2) standard that is us

29、ed routinely to calibrate or check material measures, measuring instruments or reference materials NOTE 1 A working standard is usually calibrated against a reference standard. NOTE 2 A working standard used routinely to ensure that measurements are being carried out correctly is called a check stan

30、dard. 4 Frequency of verification The frequency of the checks depends on the requirements of the user, taking account of the manufacturers specifications. If the temperature measuring instrument is mounted on a vehicle which is subjected to an annual or periodic maintenance inspection in an agreed v

31、ehicle test station, then the verification of these measuring instruments shall be done at the same time. NOTE 1 Nevertheless it is recommended that a check be carried out every year by the manufacturer or workshops which are authorized by him or authorized verification services, when the temperatur

32、e recorders and thermometers have been used over this period. NOTE 2 It is recommended to have a systematic verification following a period of non-use exceeding the period adopted by the user or when an operating incident or a deterioration is noted or supposed, or during an intervention such as the

33、 introduction of a new sensor, except when permitted by the manufacturer. 5 Method of verification of temperature measurement 5.1 General The method used is the measurement by direct comparison of the instrument under test and the working standard thermometer. 5.2 Environmental conditions It shall b

34、e ascertained that the environmental conditions for the tests are compatible with the apparatus to be verified and with the measuring instruments used (disturbances caused by, for example welding unit, inverters, high voltage cables). 5.3 Working standard Table 1 gives the maximum calibration uncert

35、ainty for the verification measurement range, with a one-year calibration interval. Table 1 Criterion for selection of working standard Values in degrees Celsius Class 0,5 1 2 Maximum calibration uncertainty of the working standard thermometer 0,1 0,2 0,5EN 13486:2001 (E) 6 5.4 Additional equipment

36、Climatic container or thermostatic bath or any suitable equipment for one-site verification. The choice shall be in accordance with the requirements in Table 2. Table 2 Criterion for selection of additional equipment Values in degrees Celsius Class 0,5 1 2 Maximum uncertainty of the verification 0,3

37、 0,5 1 5.5 Procedure 5.5.1 General A detailed procedure of the operating method shall be drawn up, indicating the operating sequence and complying with the verification operations according to EN 30012-1. 5.5.2 Preliminary operations If necessary: cleaning of the thermometer or the temperature recor

38、der and the sensor(s); verification of the display or recorder (self-test) and connector(s); possible change of battery or its recharge; verification of the electrical connections. Then: stabilization of the temperature of the sensors (pay attention to the response time, temperature delay, heat radi

39、ation, etc.); for recorders, verify the proper functioning of the clock or of the diagram recording system according to manufacturers specifications. 5.5.3 Verification measurement(s) The verification operation shall be conducted at a temperature within 5 C of the temperature at which the equipment

40、is most frequently used, unless otherwise specified by the manufacturer, without exceeding the nominal measuring range of the equipment. Climatic container or thermostatic bath as referred to in 5.4 shall be used when praticable. If the verification is conducted on site, suitable equipment for the v

41、erification proposed by the manufacturer, if any, shall be used; if not, an appropriate measurement method shall be applied to comply with the following requirements: maximum thermal coupling between the sensors; minimum drift of the measured temperature; sufficient time for the reading to become st

42、able.EN 13486:2001 (E) 7 5.6 Condition of acceptance This operation consists of comparing the results of measurements and calculating errors noted, taking into account the measurement uncertainty of the working standard thermometer presented in Table 1 to verify if these measurements comply with the

43、 relevant specification of limit of permissible error as given in the standards. This specification shall be at least class 2 of the standards on temperature recorders (EN 12830) and thermometers (EN 13485:2001) irrespective of the original class of the appliance. 6 Method of verification of duratio

44、n of temperature recordings 6.1 General The purpose of this verification is to ensure that the duration of recordings is within specification. 6.2 Verification of recording duration by making a test recording For this test the recorder may be set to its fastest chart speed or shortest recording inte

45、rval. The actual time for a test recording is measured with a suitable clock with a relative error 0,02 % and this is compared with the time measured on the recorder. 6.2.1 The recorder is put into operation and allowed to run for sufficient time to take up any mechanical play if applicable. 6.2.2 A

46、 sudden and repeatable change is made to the recorded temperature and at the same time the clock is started. The recorded temperature is then allowed to return to normal. NOTE The recorded temperature may be changed by any suitable means, such as immersing the sensor in ice and water or simulating a

47、 temperature change with special equipment. 6.2.3 The recording is left to run for sufficient time to verify that the recording duration is within specification. NOTE An estimate of the number of minutes needed is given by the following formula: e t 100 where t is the shortest measurable time interv

48、al in minutes on the recording; e is the maximum permissible relative error. 6.2.4 The procedure of 6.2.2 is repeated and the clock is stopped at the same point where it was started in 6.2.2. 6.2.5 The recording duration is measured on the recorder between the points marked in steps 6.2.2 and 6.2.4.

49、 The percentage error is given by the following formula: c r c t ) t t ( where t c is the duration measured on clock; t r is the duration measured on recorder.EN 13486:2001 (E) 8 6.3 Verification of recording duration by other means If the manufacturer of the recorder has provided a means of determining the percentage error of the recording duration by some special test facility or procedure, then this may be used instead of the method defined in 6.2. The manufacturers instructions shall be follow