EN ISO 11136-2017 en Sensory analysis - Methodology - General guidance for conducting hedonic tests with consumers in a controlled area.pdf

1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Sensory analysis - Methodology - General guidance for conducting hedonic tests with consumers in a controlled area (ISO 11136:2014)BS EN ISO 11136:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11136 May 2

2、017 ICS 67.240 English Version Sensory analysis - Methodology - General guidance for conducting hedonic tests with consumers in a controlled area (ISO 11136:2014) Analyse sensorielle - Mthodologie - Lignes directrices gnrales pour la ralisation dpreuves hdoniques effectues avec des consommateurs dan

3、s un espace contrl (ISO 11136:2014) Sensorische Analyse - Methodologie - Allgemeiner Leitfaden fr die Durchfhrung hedonischer Prfungen (Verbrauchertests) in einem festgelegten Bereich (ISO 11136:2014) This European Standard was approved by CEN on 31 January 2017. CEN members are bound to comply with

4、 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 CEN-CENELEC Manage

5、ment 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 a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same stat

6、us as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta

7、, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2

8、017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 11136:2017 ENational forewordThis British Standard is the UK implementation of EN ISO 11136:2017. It is identical to ISO 11136:2014. It supersedes BS ISO 11136:2014.The UK par

9、ticipation in its preparation was entrusted to Technical Committee AW/12, Sensory analysis.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

10、for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 95517 4ICS 67.240Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy

11、 and Strategy Committee on 31 December 2014.Amendments/corrigenda issued since publicationDate Text affected31 December 2017 This corrigendum renumbers BS ISO 11136:2014 as BS EN ISO 11136:2017BRITISH STANDARDBS EN ISO 11136:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11136 May 2017

12、 ICS 67.240 English Version Sensory analysis - Methodology - General guidance for conducting hedonic tests with consumers in a controlled area (ISO 11136:2014) Analyse sensorielle - Mthodologie - Lignes directrices gnrales pour la ralisation dpreuves hdoniques effectues avec des consommateurs dans u

13、n espace contrl (ISO 11136:2014) Sensorische Analyse - Methodologie - Allgemeiner Leitfaden fr die Durchfhrung hedonischer Prfungen (Verbrauchertests) in einem festgelegten Bereich (ISO 11136:2014) This European Standard was approved by CEN on 31 January 2017. CEN members are bound to comply with th

14、e 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 CEN-CENELEC Managemen

15、t 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 a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status

16、as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, N

17、etherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017

18、 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 11136:2017 EBS EN ISO 11136:2017EN ISO 11136:2017 (E) 3 European foreword The text of ISO 11136:2014 has been prepared by Technical Committee ISO/TC 34 “Food products” of the Int

19、ernational Organization for Standardization (ISO) and has been taken over as EN ISO 11136:2017. 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 November 2017, and conflicting national standards sh

20、all 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 patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal

21、 Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Irela

22、nd, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 11136:2014 has been approved by CEN as EN ISO 11136:2017 without any modification

23、. BS EN ISO 11136:2017ISO 11136:2014(E)Contents PageForeword v1 Scope . 12 Normative references 13 Terms and definitions . 14 Preliminary considerations 34.1 Study proposal. 34.2 Specification of the target population . 44.3 Further specifications . 45 The consumer sample . 55.1 General . 55.2 Recru

24、iting the consumers 55.3 Assembling a consumer sample . 75.4 Sample segmentation . 76 Size of the consumer sample 86.1 Decisions of measurement 86.2 Determining the sample size 86.3 Working with subgroups 96.4 Number of product samples and experimental design 96.5 Safety margin in recruitment . 97 T

25、est area .108 Products 108.1 Anonymous presentation of the products 108.2 Preparation and presentation of the products .109 Procedures .119.1 Two groups of hedonic tests 119.2 Rating tests 129.3 Paired comparison tests 129.4 Ranking test . 139.5 Additional questions . 149.6 Instructions for the cons

26、umers . 1410 Organization of test sessions 1510.1 General 1510.2 Plans 1510.3 Number of products evaluated in a single session 1610.4 Nature of the products evaluated within a session 1710.5 Time of the session . 1710.6 Repetition of a product within a test 1710.7 Pre-test 1711 Analysis of the resul

27、ts 1811.1 General 1811.2 Inferential analysis . 1811.3 Ratings (see 9.2) . 1811.4 Paired comparisons (9.3) 1811.5 Ranking (9.4) . 18 ISO 2014 All rights reserved iiiBS EN ISO 11136:2017ISO 11136:2014(E)12 Study report 1912.1 General 1912.2 Products . 1912.3 Test procedure 2012.4 Consumers . 2012.5 R

28、esults . 2112.6 Annexes to the report . 21Annex A (informative) Example of a recruitment questionnaire 22Annex B (informative) Methods for evaluating the data of segmentation subgroups .26Annex C (informative) Plans for assigning products to consumers 28Annex D (informative) Influence of the sample

29、size on the accuracy of one mean .29Annex E (informative) Minimum sample size for tests using rating.30Annex F (informative) Minimum sample size for tests using ranking 34Annex G (informative) Examples of data analysis for ratings 36Annex H (informative) Examples of data analysis for rankings 41Bibl

30、iography .43iv ISO 2014 All rights reservedBS EN ISO 11136:2017ISO 11136:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through I

31、SO technical committees. Each member body interested in a subject for which a technical committee has been established 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

32、closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criter

33、ia needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of p

34、atent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name us

35、ed in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Ba

36、rriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 34, Food products, Subcommittee SC 12, Sensory analysis. ISO 2014 All rights reserved vBS EN ISO 11136:2017Sensory analysis Methodology General guidance for conducti

37、ng hedonic tests with consumers in a controlled area1 ScopeThis International Standard describes approaches for measuring, within a controlled area, the degree to which consumers like or relatively like products.It uses tests based on collecting consumers responses to questions, generally on paper o

38、r via a keyboard or a touch screen. Tests of a behavioural nature (such as recording quantities consumed ad libitum by the consumers) do not fall within the scope of this International Standard.The hedonic tests dealt with in this International Standard, can be used as a contribution to the followin

39、g: comparing a product with competitor products; optimizing a product so that it obtains a high hedonic rating or is liked by a large number of consumers; helping to define a range of products to correspond to a particular consumer target population; helping to define a best-before date; assessing t

40、he impact of a product formulation change on the pleasure given by the product; studying the impact of sensory characteristics of a product on degree to which it is liked, independently of the products extrinsic characteristics, such as brand, price, or advertising; studying the effect of a commerci

41、al or presentation variable, such as packaging.The methods are effective for determining whether or not, a perceptible preference exists (difference in degree of liking), or whether or not, no perceptible preference (paired similarity test) exists.2 Normative referencesThe following documents, in wh

42、ole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 4121, Sensory analysis Guidelines

43、for the use of quantitative response scalesISO 5492, Sensory analysis VocabularyISO 5495, Sensory analysis Methodology Paired comparison testISO 8587, Sensory analysis Methodology RankingISO 8589, Sensory analysis General guidance for the design of test roomsISO 29842, Sensory analysis Methodology B

44、alanced incomplete block designs3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 5492 and the following apply.INTERNATIONAL STANDARD ISO 11136:2014(E) ISO 2014 All rights reserved 1BS EN ISO 11136:2017ISO 11136:2014(E)3.1access panelsample database of

45、potential respondents who declare that they will cooperate for future data collection if selectedSOURCE: ISO 20252Note 1 to entry: Respondents can be drawn on a more or less regular basis.3.2closed-ended questionquestion requiring respondents to select from a predetermined list of possible answers3.

46、3commissioning partyperson, body, or service who commissions a third party to conduct a studyNote 1 to entry: The concept of commissioning party corresponds to that of purchaser or customer in quality control. It contrasts with that of the supplier, service provider, or laboratoryNote 2 to entry: Us

47、ually, the commissioning party and the service provider belong to different enterprises. Where they belong to two departments of the same enterprise, the respective responsibilities of the two departments shall be carefully differentiated and explicitly clarified in the study proposal3.4consumerresp

48、ondentperson who uses a productNote 1 to entry: For the purposes of this International Standard, the meaning is restricted to a person who is neither an expert, an expert sensory assessor nor a selected assessor in conformity with ISO 5492.3.5consumer samplegroup of consumers recruited on the basis

49、of criteria specified by the nature of the target population3.6controlled arealocation providing controlled preparation and presentation of the products, comfortable conditions for consuming the products and for questioning the consumers, and absence of communication (verbal and non-verbal) between the consumers, guaranteeing independent responses3.7hedonic perceptionamount of pleasure given by the sensory properties of a product3.8hedonic testtest aimed at measuring the overall hedonic perceptio