Norm

ISO/DIS 8588:2016 en

Sensorische analyse - Methodiek - "A" - "geen A" test

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Over deze norm

Status Ontwerp
Aantal pagina's 17
Commissie Beleidscommissie Landbouw & Levensmiddelen
Gepubliceerd op 25-09-2016
Taal Engels
This International Standard describes a procedure for determining whether a perceptible sensory difference exists between samples of two products. The method applies whether a difference may exist in a single sensory attribute or in several. The “A” - “not A” test may be used in sensory analysis: a) 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); b) 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); c) as a perception test, to determine the ability of an assessor to discriminate stimuli. The “A” - “not A” test is not appropriate for assessing if two products are sufficiently similar to be used interchangeably (i.e., for similarity testing) because the “A” - “not A” test inherently involves replicate evaluations of the same products by all assessors. These replicate evaluations violate the basic assumptions for similarity tests to be statistically valid.

Details

ICS-code 67.240
Nederlandse titel Sensorische analyse - Methodiek - "A" - "geen A" test
Engelse titel Sensory analysis - Methodology - "A" - "not A" test
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