EN ISO 4120:2021
Current
The latest, up-to-date edition.
Sensory analysis - Methodology - Triangle test (ISO 4120:2021)
17-03-2021
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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