Abstract

This document specifies a procedure for determining whether a perceptible sensory difference exists between samples of two products. The method applies whether a difference exists in a single sensory attribute or in several. The “A” – “not A” test can be used in sensory analysis in the following ways. As a difference test, particularly for evaluating samples having variations, for example, in appearance (making it difficult to obtain strictly identical repeat samples) or in aftertaste (making direct comparison difficult). As a recognition test, particularly for determining whether an assessor or group of assessors identifies a new stimulus in relation to a known stimulus (for example, recognition of the quality of the sweet taste of a new sweetener). As a perception test, to determine the ability of an assessor to discriminate stimuli.

Begin

2024-02-22

Planned document number

DIN ISO 8588

Project number

05702714

Responsible national committee

NA 057-08-01 AA - Sensory analysis  

Responsible international committee

ISO/TC 34/SC 12 - Sensory analysis  

draft standard

Sensory analysis - Methodology - "A" - "not A" test (ISO 8588:2017); Text in German and English
2024-10
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previous edition(s)

Sensory analysis - A - not A test
2003-08

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