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BSI 20/30382879 DC 2020

BSI 20/30382879 DC 2020

$13.70

BS EN ISO 4120. Sensory analysis. Methodology. Triangle test sensory

Published By Publication Date Number of Pages
BSI 2020 22
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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

  1. 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;

  1. or for selecting, training and monitoring assessors.

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BSI 20/30382879 DC 2020
$13.70