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Vo Nederlandse norm
NEN-ISO 8586-1 (en)
Sensory analysis - General guidance for the selection, training and monitoring of assessors Part 1: Selected assessors (ISO 85861:1993,IDT)
ICS 03.100.30; 67.240
augustus 2012
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NEN-ISO 8586-1
Als Nederlandse norm is aanvaard:
Vo - ISO 8586-1:1993,IDT
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The Netherlands Standardization Institute shall, with the exclusion of any other beneficiary, collect payments owed by third parties for duplication and/or act in and out of law, where this authority is not transferred or falls by right to the Reproduction Rights Foundation. Auteursrecht voorbehouden. Behoudens uitzondering door de wet gesteld mag zonder schriftelijke toestemming van het Nederlands Normalisatie-instituut niets uit deze uitgave worden verveelvoudigd en/of openbaar gemaakt door middel van fotokopie, microfilm, opslag in computerbestanden of anderszins, hetgeen ook van toepassing is op gehele of gedeeltelijke bewerking.
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Apart from exceptions provided by the law, nothing from this publication may be duplicated and/or published by means of photocopy, microfilm, storage in computer files or otherwise, which also applies to full or partial processing, without the written consent of the Netherlands Standardization Institute.
Although the utmost care has been taken with this publication, errors and omissions cannot be entirely excluded. The Netherlands Standardization Institute and/or the members of the committees therefore accept no liability, not even for direct or indirect damage, occurring due to or in relation with the application of publications issued by the Netherlands Standardization Institute.
Hoewel bij deze uitgave de uiterste zorg is nagestreefd, kunnen fouten en onvolledigheden niet geheel worden uitgesloten. Het Nederlands Normalisatie-instituut en/of de leden van de commissies aanvaarden derhalve geen enkele aansprakelijkheid, ook niet voor directe of indirecte schade, ontstaan door of verband houdend met toepassing van door het Nederlands Normalisatie-instituut gepubliceerde uitgaven.
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NEN-ISO 8586-1:2012
IS0 8586- 1
INTERNATIONAL STANDARD
First edition 1993-03-I 5
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Sensory analysis - General guidance the selection, training and monitoring assessors -
for of
Part 1: Selected assessors
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Analyse sensorielle - Guide g&&al le contr6le des suje ts Partie 7: Sujets qualifies
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NEN-ISO 8586-1:2012
IS0 8586=1:1993(E)
Contents
Page
1
Scope . .. .. . .. .. . . ... .. . . ... . .. .. .. . . .. .. . .. .. . . .. . .. . ... . . ... .. . ... .. . ....*.......................*
2
Normative references
3
Definitions
4
Recruitment,
... . . .. .. . . .. .. . . .. .. . .. .. .. . .. ... . ... . .. .. .. . .. . .. .. . .. .. . .. .. .. .. .. 1
.. .. .. .. .. . .. .. .. .. .. . .. .. . . .. .. . . .. .. .. . .. .. . .. .. .. .. .. .. . .. .. .. . .. .. . . ... .. . .. .. . ... . I .. .. . .. .. .. . .. .. . ... . 1
Vo
preliminary screening and initiation
. .. .. . .... . .. ... . . .. .. . .. .. .. . . .. .. . .. .. . .. ... . .. ... . .. .. .. . ...~..................
1
. ... . .. ... . .. . .. ...*........................................................
1
..,......................................................
3
4.1
Principle
4.2
Recruitment
4.3
Background information
4.4
Screening
5
1
Training
. .. .. ... .. ... . .. .. . .. . .. .. . .. . ... .. .. .. . ... .. .. .. .. ... .. .. . . ... . . .. .. . .. .. .. . ... 4
.. . ... ... ... ... .. .. .. . .. .. . .. .. . . .. .. .. . .. .. . .. .. .. .. .. .. . .. .. .. . .. .. . .. .. .. . . .. .. . ... 7
or
5.1
Principle
. ... . .. ... . ... .. . .. .. . .. . .. . . .. .. .. . .. .. . .. ... . ... . .. . ... .. . . .. .. . .. .. .. . . .. .. .. .. 7
5.2
General
.. .. .. .. . ... . .. .. . .. . .. . .. .. . . .. .. .. . .. .. . .. ... . .. ... . . ... . .. . ..“..................
5.3
Assessment
procedure
5.4
Training in detection and recognition
5.5
Training in the use of scales
5.6
Training in the development
5.7
Practice
5.8
Specific product training
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and use of descriptors
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. .. . . .. .. . ... .. . .. ... . .. ... . .. .. .. . . .. .. . .. .. .. . .. .. . .. .. 9
.. .. . . .. .. . .. .. .. . .. .. . .. .. 9
6.2
Difference
6.3
Ranking assessment
6.4
Rating and scoring
6.5
Qualitative descriptive analysis
6.6
Quantitative
6.7
Assessors for particular assessments
assessments
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.. .. . .. . ... . .. .. . .. .. .. . .. .. . .. .. .. . .. .. .. .. .. .. .. ... ... . .. . .. . .. . .. .. .. . .. . .. .. .. 9
Principle
IS0
(profiles)
8
. ... .. . .. ... . .. .. . .. .. . .. .. .. . .. .. .. . .. .. . .. ... . .. ... . .. .. . .. . .. .. . .. .. .. ... . .. .. .. 9
6.1
0
. .. 7
,,,,....,.,.,.....................................
Final choice of panels for particular methods
6
7
. .. . . .. .. .. .. ..~................*......................... of tastes and odours
7
. .. . .. .. .. .. .. .. . ... .. . ... .. . .. . .. . .. . ... .. .. .. . .. .. . .. .. 9
.. . ... .. . .. .. .. .. .. .. .. .. .. .. .. .. . .. . .. . .. . .. . .. .. .. . .. . .. .. .. 9 . ... .. .. .. .. . .. ... . .. .. .. . ... .. .. .. .. . .. . .. . . ...*.................
descriptive analysis
9
. ... . .. ... . .. .. .. . . .. . .. . . ... . . .. .. . .. .. .. . . IO ..,,,,.....,.,,................~..........
10
..,....*.....,....................
10
1993
All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case Postale 56 l CH-1211 Geneve 20 l Switzerland Printed in Switzerland
II
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NEN-ISO 8586-1:2012
IS0 8586=1:1993(E)
7
Monitoring
of selected assessors
.. . ... .. . ... .. ... .. . .. .. . . .. . .. . . .. . .. . .. . . IO
Annexes Use of analysis of variance in the choice of selected assessors for . .. .. .. .. .. .. . .. .. . .. .. .. . . ... . . .. .. .. .. ... . .. .. . .. . ... . ... .. . .. . .. . .. .. . . .. .. . .. . .. 11 scoring
B
Example of practical application
C
Bibliography
... . .. .. .. ... . .. ... .. . .. . .. . . ... . . .. .. .. . .. . . 13
,..,....,...........,............,..............,..,........................
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15
NEN-ISO 8586-1:2012
IS0 8586=1:1993(E)
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Foreword
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IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 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. IS0 collaborates closely with the International Electrotechnical Commission (I EC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
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International Standard IS0 8586-l was prepared by Technical Committee lSO/TC 34, AgriculturaI food products, Sub-Committee SC 12, Sensory analysis.
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Part I: Selected assessors
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Part 2: Experts
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IS0 8586 consists of the following parts, under the general title Sensory analysis - General guidance for the selection, training and monitoring of assessors:
B and
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Annex A forms an integral part of this part of IS0 8586. Annexes C are for information only.
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NEN-ISO 8586-1:2012
IS0 8586=1:1993(E)
A sensory analysis panel constitutes a true “measuring instrument”, and consequently the results of the analyses conducted will depend on its members. The recruitment of persons willing to participate in a panel therefore needs to be carried out with care and to be considered as a real investment, both in time and financially. Sensory assessment
may be made by three types of assessor:
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“assessors”,
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“selected
-
“experts”.
assessors”,
and
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Assessors can be “naive assessors” who do not have to meet any precise criterion, or “initiated assessors” who have already participated in sensory tests. “Selected assessors”
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Introduction
” Experts ” particular memory, knowledge
are assessors who have been selected and trained.
can be “expert assessors” who have already demonstrated acuity in panel work and have developed a good long-term who draw on additional or “specialized expert assessors” gained in particular fields.
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This part of IS0 8586 concerns only the recruitment, selection, training and monitoring of candidates intended to become selected assessors. The recruitment, selection, training and monitoring of candidates intended to become experts will form the subject of IS0 8586-2. The selection and training methods to be employed depend on the tasks which one intends to give the selected assessors. It should be pointed out that these methods sometimes only constitute a way of choosing the better candidates among those who are available, rather than those who satisfy predetermined criteria. This is particularly the case when it is necessary to constitute internal panels. A preliminary selection of candidates has to be undertaken at the recruitment stage, in order to eliminate those who would be unsuited for sensory analysis. However, the final selection can only be made after training and the completion of the envisaged tasks. The recommended a) recruitment
procedure involves
and preliminary screening of na’ive assessors;
b) training of naive assessors who will become initiated assessors;
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NEN-ISO 8586-1:2012
IS0 8586=1:1993(E)
c) selection of initiated assessors according to ability to perform particular tests; they will then become selected assessors; selection following the performance of an actual sensory assessment (useful in the case of descriptive analyses); possible training of selected assessors to become expert assessors. In certain cases (especially for descriptive be divided into specialized sub-groups.
sensory analysis), the panel may
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The exact procedures covered by a) and b) and the nature of the tests performed in c) and d) depend on the tasks which the panel is to perform. The performance of selected assessors should be monitored regularly to ensure that the criteria by which they were initially selected continue to be met. The entire process is illustrated in the following Recruitment, preliminary screening and initiation
Clause 4
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I
diagram.
Training in general principles and methods tI
SeLection for particular purposes
Clause 6
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Monitoring performance
Clause 5
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Clause 7
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Possible training as expert assessors
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Dit document is een voorbeeld van NEN / This document is a preview by NEN
NEN-ISO 8586-1:2012
INTERNATIONAL STANDARD
IS0 8586=1:1993(E)
Vo
Sensory analysis - General guidance for the selection, training and monitoring of assessors
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Part 1: Selected assessors
Scope
or
1
This part of IS0 8586 specifies criteria for the selection and procedures for the training and monitoring of selected assessors. It supplements the information given in IS0 6658.
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Principle
Methodology
-
Methodology methods using
IS0 54927 992, Sensory analysis -
Vocabulary.
IS0 6658: 1985, Sensory analysis General guidance.
Methodology
To recruit candidates and to select those most suitable for training as selected assessors.
4.2
Recruitment
The following three questions arise when persons to form a sensory analysis panel:
recruiting
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Sensory analysis -
IS0 4121 :I 987, Sensory analysis Evaluation of food products by scales.
3
screening
Recruitment is an important starting point in forming a panel of selected assessors. Different recruitment methods and criteria are available and there are various tests that can be used for screening candidates for suitability for further training. 4.1
The following standards contain provisions which, through reference in this text, constitute provisions of this part of IS0 8586. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of IS0 8586 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 4120:1983, Triangular test.
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4 Recruitment, and initiation
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where should one look for the people who will constitute the group ?
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how many people shall be selected?
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how shall the people be selected?
4.2.1
Types of recruitment
Two types ations:
of recruitment
are available to organiz-
-
Definitions
For the purposes of this part of IS0 8586, the definitions given in IS0 5492 apply.
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recruit through the personnel department organization (internal recruitment), or
-
recruit people from outside the organization ternal recruitment).
It is possible to constitute both types of recruitment.
of the (ex-
a mixed panel made up of
1
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