ASTM E253-08

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it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:E253–07a Designation:E 253–08
Standard Terminology Relating to
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Sensory Evaluation of Materials and Products
This standard is issued under the fixed designation E 253; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Referenced Documents
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1.1 ASTM Standards:
E 284 Terminology of Appearance
2. Terminology
absolute judgment, n—an evaluation of a stimulus made without direct comparison to other stimuli. (2007)
acceptability/unacceptability, n—degree to which a stimulus is judged to be favorable or unfavorable. (2006)
acuity, n—the ability to detect or discriminate sensory stimuli. (2007)
adaptation, sensory, n—a decrease in sensitivity to a given stimulus which occurs as a result of exposure to that stimulus. (2006)
affective test, n—any method to assess acceptance, attitudes, emotions, or preference for a stimulus (i). (2006) —any method to
assess acceptance, liking, preference, or emotions for a stimulus or stimuli. (2008)
after effects, n—total array of sensations that occur after elimination of the physical stimulus from the sensing field. (1996) —total
array of sensations that occur after removal of the stimulus from the sensing field (for example, with foods) or after application
of the stimulus (for example, with non-foods). (2008)
aftertaste, n—the oral or nasal sensations that occur after the stimulus has been removed from the oral cavity. See after effects.
(2007)
aguesia, n—lack of sensitivity to taste stimuli. (1996)
anchoring point, n—a reference point against which other items are judged. (1996)
anosmia, n—lack of sensitivity to odor stimuli. (1996)
A–not-A test, n—a method of discrimination testing comprised of at least two samples; at least one sample is a previously
identified sample (“A”) and at least one is a test sample. All samples are presented blindly, and the assessor’s task is to assign
the label “A” or “not-A” to each of the samples. (2001)
antagonism, n—joint action of two or more stimuli whose combination elicits a level of sensation lower than that expected from
combining the effects of each stimulus taken separately. (1996)
aroma, n—perception resulting from stimulating the olfactory receptors; in a broader sense, the term is sometimes used to refer
to the combination of sensations resulting from stimulation of the entire nasal cavity. (1996)
DISCUSSION—Aroma, odor, and smell have the same basic meaning; however, in common usage they may have different connotations.
assessor, n—a general term for any individual responding to stimuli in a sensory test. (2006)
DISCUSSION—The terms assessor, judge, panelist, panel member , and respondent all have the same basic meaning, although sometimes different
connotations. Usage of these terms varies with the training and experience of the investigator, habit, tradition, personal preference, and other factors.
astringency, n—the complex of sensations due to shrinking, drawing, or puckering of the epithelium as a result of exposure to
substances such as alums or tannins. (1996)
attitude, n—a predisposition to respond in a characteristic way toward a class of objects, concepts, or stimuli. (1996)
attitude scale, n—a means for eliciting indications of the attitudes or opinions held, usually on a measuring system using marks
or value designations. (1996)
attribute, n—a perceived characteristic. (1996)
audition, n—the sense of hearing. (1996)
aversion, n—feeling of dislike provoking avoidance of a stimulus. (1996)
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This terminology is under the jurisdiction of ASTM Committee E18 on Sensory Evaluation and is the direct responsibility of Subcommittee E18.01 on Terminology .
Current edition approved Nov. 1, 2007.April 15, 2008. Published December 2007.May 2008. Originally approved in 1965. Last previous edition approved in 2007 as
E 253 – 07a.
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E253–08
bias, n—systematic error manifested as a persistent positive or negative deviation of the meth
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