Norm

NEN-EN-ISO 4120:2007 en

Sensor analyse - Methodiek - Driehoekstest

79,70

Over deze norm

Status Definitief
Aantal pagina's 15
Commissie Beleidscommissie Landbouw & Levensmiddelen
Gepubliceerd op 01-08-2007
Taal Engels
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. The method is effective for a) determining that - either a perceptible difference results (triangle testing for difference), or - 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) or for selecting, training and monitoring assessors.

Details

ICS-code 67.240
Nederlandse titel Sensor analyse - Methodiek - Driehoekstest
Engelse titel Sensory analysis - Methodology - Triangle test
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