EN ISO 11132-2017 en Sensory analysis - Methodology - Guidelines for monitoring the performance of a quantitative sensory panel.pdf

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1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Sensory analysis - Methodology - Guidelines for monitoring the performance of a quantitative sensory panel (ISO 11132:2012)BS EN ISO 11132:2017EUROPEANSTANDARDNORME EUROPENNE EUROPISCHE NORMEN ISO 11132 May 2017ICS 67.2

2、40English VersionSensory analysis - Methodology - Guidelines formonitoring the performance of a quantitative sensorypanel (ISO 11132:2012)Analyse sensorielle - Mthodologie - Lignes directricespour le contrle de la performance dun jury sensorielquantitatif (ISO 11132:2012)Sensorische Analyse - Method

3、ologie - Leitlinien zurberprfung der Leistungsfhigkeit einesquantitativen sensorischen Panels (ISO 11132:2012)This European Standard was approved by CEN on 31 January 2017.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving thisEuropean

4、 Standard the status of a national standard without any alteration.Up-to-date lists and bibliographical referencesconcerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (Eng

5、lish, French, German). A version in any other language made bytranslation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC ManagementCentre has the same status as the officialversions.CEN members are the nationalstandards bodies of Austria, Belgium, Bulg

6、aria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzer

7、land, Turkey and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reservedworldwide for CENnational Member

8、s.Ref. No. EN ISO 11132:2017 ENational forewordThis British Standard is the UK implementation of EN ISO 11132:2017. It is identical to ISO 11132:2012. It supersedes BS ISO 11132:2012, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee AW/12, Sensory analy

9、sis.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. The British Standards Institution 2017 Published by BSI St

10、andards Limited 2017ISBN 978 0 580 95516 7ICS 67.240Compliance 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 1 November 2012.Amendments/corrigenda issued since publicatio

11、nDate Text affected31 December 2017 This corrigendum renumbers BS ISO 11132:2012 as BS EN ISO 11132:2017BRITISH STANDARDBS EN ISO 11132:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11132 May 2017 ICS 67.240 English Version Sensory analysis - Methodology - Guidelines for monitoring th

12、e performance of a quantitative sensory panel (ISO 11132:2012) Analyse sensorielle - Mthodologie - Lignes directrices pour le contrle de la performance dun jury sensoriel quantitatif (ISO 11132:2012) Sensorische Analyse - Methodologie - Leitlinien zur berprfung der Leistungsfhigkeit eines quantitati

13、ven sensorischen Panels (ISO 11132:2012) This European Standard was approved by CEN on 31 January 2017. 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.

14、 Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 tr

15、anslation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Fin

16、land, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STAN

17、DARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 11132:2017 EBS EN ISO 11132:2017EN

18、ISO 11132:2017 (E) 3 European foreword The text of ISO 11132:2012 has been prepared by Technical Committee ISO/TC 34 “Food products” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 11132:2017. This European Standard shall be given the status of a nationa

19、l standard, either by publication of an identical text or by endorsement, at the latest by November 2017, and conflicting national standards shall be withdrawn at the latest by November 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of paten

20、t rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croa

21、tia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turk

22、ey and the United Kingdom. Endorsement notice The text of ISO 11132:2012 has been approved by CEN as EN ISO 11132:2017 without any modification. BS EN ISO 11132:2017ISO 11132:2012(E) ISO 2012 All rights reserved iiiContents PageForeword iv1 Scope 12 Normative references . 13 Terms and definitions .

23、14 Principle . 25 Experimental conditions . 46 Qualification of assessors 47 Procedure 47.1 Monitoring via formal performance validation 47.2 Statistical analysis of data from formal performance validation (a single session) . 57.3 Overall panel performance from formal performance validation . 67.4

24、Individual assessor performance from formal performance validation . 77.5 Performance issues 97.6 Monitoring via routine product profiling . 97.7 Experimental design for study of performance over time . 97.8 Statistical analysis of data over time . 97.9 Reproducibility between panels 107.10 Statisti

25、cal analysis of complete profiles .10Annex A (informative) Example of practical application 11Annex B (informative) Example of use of cusum analysis 18Annex C (informative) Example of use of Shewhart chart .21Bibliography .23BS EN ISO 11132:2017ISO 11132:2012(E)ForewordISO (the International Organiz

26、ation for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established

27、 has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.In

28、ternational Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Public

29、ation as an International Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rig

30、hts.ISO 11132 was prepared by Technical Committee ISO/TC 34, Food products, Subcommittee SC 12, Sensory analysis.iv ISO 2012 All rights reservedBS EN ISO 11132:2017INTERNATIONAL STANDARD ISO 11132:2012(E)Sensory analysis Methodology Guidelines for monitoring the performance of a quantitative sensory

31、 panel1 ScopeThis International Standard gives guidelines for monitoring and assessing the overall performance of a quantitative descriptive panel and the performance of each member.A panel of assessors can be used as an instrument to assess the magnitude of sensory attributes.Performance is the mea

32、sure of the ability of a panel or an assessor to make valid attribute assessments across the products being evaluated. It can be monitored at a given time point or tracked over time. Performance comprises the ability of a panel to detect, identify, and measure an attribute, use attributes in a simil

33、ar way to other panels or assessors, discriminate between stimuli, use a scale properly, repeat their own results, and reproduce results from other panels or assessors.The methods specified allow the consistency, repeatability, freedom from bias and ability to discriminate of panels and assessors to

34、 be monitored and assessed. Monitoring and assessment of agreement between panel members is also covered. Monitoring and assessment can be carried out in one session or over time.Monitoring performance data enables the panel leader to improve panel and assessor performance, to identify issues and re

35、training needs or to identify assessors who are not performing well enough to continue participating.The methods specified in this International Standard can be used by the panel leader to appraise continuously the performance of panels or individual assessors.This International Standard applies to

36、individuals or panels in training as well as for established panels.2 Normative referencesThe 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 docu

37、ment (including any amendments) applies.ISO 5492, Sensory analysis VocabularyISO 8586, Sensory analysis General guidelines for the selection, training and monitoring of selected and expert assessorsISO 8589, Sensory analysis General guidance for the design of test rooms3 Terms and definitionsFor the

38、 purposes of this document, the terms and definitions given in ISO 5492 and the following apply.3.1agreementability of different panels or assessors to assign similar scores on a given attribute to samples of the same product3.2homogeneitymeasure of the agreement of responses among individual assess

39、ors within a test session, as a panel of assessors in replicate sessions, or for an individual assessor in replicate sessions ISO 2012 All rights reserved 1BS EN ISO 11132:2017ISO 11132:2012(E)3.3assessor biastendency of an assessor to give scores which are consistently above or below the true score

40、 when that is known or the panel mean when it is not3.4outlieran assessment that does not conform to the overall pattern of the data or is extremely different from other assessments of the same or similar products3.5panel driftphenomenon where a panel, over time, changes in sensitivity or becomes su

41、sceptible to biases and as a consequence changes the location on the scale where an attribute is rated for a constant, reference product3.6performanceability of a panel or an assessor to make valid and reliable assessments of stimuli and stimulus attributes3.7repeatabilityagreement in assessments of

42、 equivalent product samples under the same test conditions by the same assessor or panel3.8reproducibilityagreement in assessments of equivalent product samples under different test conditions, with different tasks or by a different assessor or panelNOTE Reproducibility may be measured as any of the

43、 following: the reproducibility of a panel in the short term, measured between two or more sessions separated by several days; the reproducibility of a panel in the medium or long term, measured among sessions separated by several months; the reproducibility between different panels, in the same lab

44、oratory or in different laboratories; the reproducibility of assessments by a single assessor of different attributes of a product.3.9validationprocess of establishing that sensory data correlate with other data on samples of the same product (e.g. laboratory measurements, consumer perception, resul

45、ts from other panels, consumer complaints) or that a panel or assessor is able to meet specified performance criteria3.10sessionoccasion on which products are assessedNOTE In a single session either one or several products may be assessed by one or several assessors. For an assessor, whether alone o

46、r as part of a panel, sessions are separated in time.3.11replicate sessionssessions in which the assessors, the products, the test conditions, and the task are the same4 PrincipleThis International Standard is concerned with sensory panels used to assess the magnitude of one or more sensory attribut

47、es in order to make quantitative descriptions or profiles of products. Different methods are appropriate to the assessment and monitoring of the performance of panels used for difference testing.2 ISO 2012 All rights reservedBS EN ISO 11132:2017ISO 11132:2012(E)The performance of a quantitative sens

48、ory panel may be evaluated by using assessments already available or from panel sessions conducted specifically for the purpose of obtaining performance data.This International Standard may be used either for periodic monitoring or for reviewing ongoing profile data.A dedicated monitoring procedure

49、at periodic intervals is appropriate for accreditation and other purposes. Figure 1 is a flow chart for this procedure.To review ongoing profile data generated by a panel, it can be appropriate to use data that originated from quite different profiling experiments using different product types, product numbers, etc. The procedure is the same as that shown in Figure 1. However, as there are no predefined differences, it is recommended that attributes that are significantly discriminated by the panel as a whole for a given profile be us