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Normas BSI – AENOR
BS ISO 16820:2019

BS ISO 16820:2019

Sensory analysis. Methodology. Sequential analysis

2019-10-09 /Definitive
Equivalencias internacionales:

ISO 16820

Relación con otras normas BSI:

Reemplaza a: BS ISO 16820:2004


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.

Food testing, Statistical methods of analysis, Testing conditions, Sensory analysis (food), Sensory analysis
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