ISO 4120:2021 Sensory analysis — Methodology — Triangle test

Annotation Preview

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.
Keywords:
GeneralInformation
Status: Active ChangeNumber: 3 InternationalClassificationCodeOfStandards: 67.240 TechnicalCommittee: ISO/TC 34/SC 12 ActivatedDate: 03.03.2021 PagesCount: 17 Language: en

BuyStandard

Price 217.10 AZN

VAT 39.08 AZN

Sum 256.18 AZN

AddToCart