Reference number
ISO 16820:2019
© ISO 2024
International Standard
ISO 16820:2019
Sensory analysis — Methodology — Sequential analysis
Edition 2
2019-10
Read sample
Published (Edition 2, 2019)

ISO 16820:2019

Language
Format
CHF 63
Convert Swiss francs (CHF) to your currency

Abstract

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:

  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;

b) selecting, training and monitoring assessors.

N

General information

  • Status
     : Published
    Publication date
     : 2019-10
    Stage
    : International Standard under systematic review [90.20]
  • Edition
     : 2
    Number of pages
     : 10
  • Technical Committee :
    ISO/TC 34/SC 12
    ICS :
    67.240 
  • RSS updates

Life cycle

Got a question?

Check out our Help and Support

  2. Store
  3. Standards catalogue
  4. ICS
  5. 67
  6. 67.240
  7. ISO 16820:2019