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EVS-EN ISO 4120:2008

Sensory analysis - Methodology - Triangle test

General information
Withdrawn from 01.04.2021
Base Documents
ISO 4120:2004; EN ISO 4120:2007
Directives or regulations
None

Standard history

Status
Date
Type
Name
01.04.2021
Main
07.02.2008
Main
This International Standard describes 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 fairly homogeneous.
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