BS ISO 16820:2019 - Sensory analysis. Methodology. Sequential analysis
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BS ISO 16820:2019

Sensory analysis. Methodology. Sequential analysis

Status : Current   Published : October 2019



This document specifies a procedure for statistically analysing data from forced-choice sensory discrimination tests, such as the triangle, duo-trio, 3-AFC, 2-AFC, in which after every trial of the discrimination test the decision can be made to stop testing and declare a difference, to stop testing and declare no difference, or to continue testing.

The sequential method often allows for a decision to be made after fewer trials of the discrimination test than would be required by conventional approaches that use predetermined numbers of assessments.

The method is effective for:

  1. determining that either:

    1. a perceptible difference results; or

    2. a perceptible difference does not result when, for example, a change is made in ingredients, processing, packaging, handling or storage;

  2. selecting, training and monitoring assessors.

Standard NumberBS ISO 16820:2019
TitleSensory analysis. Methodology. Sequential analysis
Publication Date09 October 2019
Normative References(Required to achieve compliance to this standard)ISO 5492
Informative References(Provided for Information)ISO 5495, ISO 6658, ISO 10399, ISO 8586, ISO 4120, ISO 3534-1
ReplacesBS ISO 16820:2004
International RelationshipsISO 16820:2019
Draft Superseded By19/30382891 DC
DescriptorsTesting conditions, Sensory analysis, Statistical methods of analysis, Food testing, Sensory analysis (food)
Title in FrenchAnalyse sensorielle. Méthodologie. Analyse séquentielle
ISBN978 0 539 02271 1
File Size1.219 MB

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