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  • BSI
    BS ISO 16820:2019 Sensory analysis. Methodology. Sequential analysis
    Edition: 2019
    $307.97
    / user per year

Description of BS ISO 16820:2019 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
StatusUnder Review
Publication Date2019-10-09
ReplacesBS ISO 16820:2004
Identical National Standard OfISO 16820
DescriptorsFood testing, Statistical methods of analysis, Testing conditions, Sensory analysis (food), Sensory analysis
ICS67.240 Sensory analysis
CommitteeAW/12
ISBN978 0 539 02271 1
PublisherBSI
Pages18

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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