Sensory analysis — Methodology — "A" - "not A" test
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
