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EN ISO 4120:2021

Current

Current

The latest, up-to-date edition.

Sensory analysis - Methodology - Triangle test (ISO 4120:2021)

Published date

17-03-2021

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This document specifies a procedure for determining whether a perceptible sensory difference or similarity exists between samples of two products. The method is a forced-choice procedure. The method is applicable whether a difference exists in a single sensory attribute or in several attributes.The method is statistically more efficient than the duo-trio test (described in ISO 10399), but has limited use with products that exhibit strong carryover and/or lingering flavours.The method is applicable even when the nature of the difference is unknown [i.e. it determines neither the size nor the direction of difference between samples, nor is there any indication of the attribute(s) responsible for the difference]. The method is applicable only if the products are homogeneous.The method is effective for:a) determining that: either a perceptible difference results (triangle testing for difference); a perceptible difference does not result (triangle testing for similarity),when, for example, a change is made in ingredients, processing, packaging, handling or storage;b) selecting, training and monitoring assessors.

Committee
CEN/BT
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current
Supersedes

Standards Relationship
SN EN ISO 4120:2021 Identical
ÖNORM EN ISO 4120:2021 07 01 Identical
NEN-EN-ISO 4120:2021 Identical
I.S. EN ISO 4120:2021 Identical
PN-EN ISO 4120:2021-08 Identical
ISO 4120:2021 Identical
NS-EN ISO 4120:2021 Identical
UNE-EN ISO 4120:2022 Identical
UNI EN ISO 4120:2021 Identical

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