ISO 16820:2019

Sensory analysis -- Methodology -- Sequential analysis


Status:
Current
Type:
Standard
Language:
English
Subject:
Price from:
€ 52.63

Scope

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:
a) determining that either:

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

b) selecting, training and monitoring assessors.
N

Number of pages: 0

Published: 2019-10-03

International relationships :

ICS: 67.240 - Sensory analysis

Item number: M335019


Committees

Committee

  • ISO/TC 34/SC 12

Danish committee

DS/S-291