ASTM E253-09

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
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:E 253–08a Designation:E 253–09
Standard Terminology Relating to
1
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 (´) indicates an editorial change since the last revision or reapproval.
1. Referenced Documents
2
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, liking, preference, or emotions for a stimulus or stimuli. (2008)
after effects, n—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)
after feel, n—feel of the skin after application of a sample, with or without touching, usually measured at a specified time point.
(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)
alternative forced choice (AFC), n—method in which 2, 3, or more stimuli are presented, and assessors are given a criterion by
which they are required to select one stimulus. (2008)
DISCUSSION—Typical examples include 2-AFC (directional different test) and 3-AFC (selecting the one stimulus among a set of three that differs in
a defined attribute).
alternative forced choice (AFC) test, n—method in which 2, 3, or more stimuli are presented, and assessors are given a criterion
by which they are required to select one stimulus. (2008)
DISCUSSION—Typical examples include 2-AFC (directional difference test) and 3-AFC (selecting the one stimulus among a set of three that differs
in a defined attribute).
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.
1
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. 15, 2008.May 1, 2009. Published December 2008.May 2009. Originally approved in 1965. Last previous edition approved in 2008 as
E 253 – 08a.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
E253–09
astringency, n—the complex of sensations due to shrinking, drawing, or
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
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:E 253–08a Designation:E 253–09
Standard Terminology Relating to
1
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 (´) indicates an editorial change since the last revision or reapproval.
1. Referenced Documents
2
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, liking, preference, or emotions for a stimulus or stimuli. (2008)
after effects, n—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)
after feel, n—feel of the skin after application of a sample, with or without touching, usually measured at a specified time point.
(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)
alternative forced choice (AFC), n—method in which 2, 3, or more stimuli are presented, and assessors are given a criterion by
which they are required to select one stimulus. (2008)
DISCUSSION—Typical examples include 2-AFC (directional different test) and 3-AFC (selecting the one stimulus among a set of three that differs in
a defined attribute).
alternative forced choice (AFC) test, n—method in which 2, 3, or more stimuli are presented, and assessors are given a criterion
by which they are required to select one stimulus. (2008)
DISCUSSION—Typical examples include 2-AFC (directional difference test) and 3-AFC (selecting the one stimulus among a set of three that differs
in a defined attribute).
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.
1
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. 15, 2008.May 1, 2009. Published December 2008.May 2009. Originally approved in 1965. Last previous edition approved in 2008 as
E 253 – 08a.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
E253–09
astringency, n—the complex of sensations due to shrinking, drawing, or
...