Standard Terminology Relating to Sensory Evaluation of Materials and Products

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E253 − 17
Standard Terminology Relating to
1
Sensory Evaluation of Materials and Products
This standard is issued under the fixed designation E253; 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.
DISCUSSION—Typical examples include 2-AFC (directional different
1. Referenced Documents
test) and 3-AFC (selecting the one stimulus among a set of three that
2
1.1 ASTM Standards:
differs in a defined attribute).
E284 Terminology of Appearance
α (alpha) risk, n—the probability of concluding that a percep-
2. Terminology
tible difference exists when, in reality, one does not. (2014)
absolute judgment, n—an evaluation of a stimulus made DISCUSSION—α risk also is known as Type 1 Error or significance
level.
without direct comparison to other stimuli. (2007)
acceptability/unacceptability, n—degree to which a stimulus alternative forced choice (AFC) test, n—method in which 2,
is judged to be favorable or unfavorable. (2006) 3, or more stimuli are presented, and assessors are given a
criterion by which they are required to select one stimulus.
acuity, n—the ability to detect or discriminate sensory stimuli.
(2008)
(2007)
DISCUSSION—Typicalexamplesinclude2-AFC(directionaldifference
test) and 3-AFC (selecting the one stimulus among a set of three that
adaptation, sensory, n—a decrease in sensitivity to a given
differs in a defined attribute).
stimulus which occurs as a result of exposure to that
stimulus. (2006)
anchoring point, n—a reference point against which other
items are judged. (1996)
affective test, n—any method to assess acceptance, liking,
preference, or emotions for a stimulus or stimuli. (2008)
anosmia, n—lack of sensitivity to odor stimuli. (1996)
after effects, n—total array of sensations that occur after
A–not-A test,n—amethodofdiscriminationtestingcomprised
removal of the stimulus from the sensing field (for example,
of at least two samples; at least one sample is a previously
with foods) or after application of the stimulus (for example,
identified sample (“A”) and at least one is a test sample.All
with non-foods). (2008)
samples are presented blindly, and the assessor’s task is to
after feel, n—feel of the skin after application of a sample,
assign the label “A” or “not-A” to each of the samples.
with or without touching, usually measured at a specified
(2001)
time point. (2008)
antagonism, n—joint action of two or more stimuli whose
aftertaste, n—the oral or nasal sensations that occur after the
combination elicits a level of sensation lower than that
stimulus has been removed from the oral cavity. See after
expected from combining the effects of each stimulus taken
effects. (2007)
separately. (1996)
aguesia, n—lack of sensitivity to taste stimuli. (1996)
aroma, n—perception resulting from stimulating the olfactory
alternative forced choice (AFC), n—method in which 2, 3, or receptors; in a broader sense, the term is sometimes used to
more stimuli are presented, and assessors are given a refer to the combination of sensations resulting from stimu-
criterion by which they are required to select one stimulus. lation of the entire nasal cavity. (1996)
(2008)
DISCUSSION—Aroma, odor, and smell have the same basic meaning;
however, in common usage they may have different connotations.
1
ThisterminologyisunderthejurisdictionofASTMCommitteeE18onSensory
aromatic, n—perception resulting from stimulating the olfac-
EvaluationandisthedirectresponsibilityofSubcommitteeE18.01onTerminology.
Current edition approved May 1, 2017. Published June 2017. Originally
tory receptors retronasally. (2010)
approved in 1965. Last previous edition approved in 2016 as E253 – 16. DOI:
10.1520/E0253-17.
assessor, n—a general term for any individual responding to
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
stimuli in a sensory test. (2006)
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
DISCUSSION—The terms assessor, judge, panelist, panel member, and
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. respondent all have the same basic meaning, although sometimes
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E253 − 17
differentconnotations.Usageofthesetermsvarieswiththetrainingand
chemesthesis, n—perception derived from chemical stimula-
experience of the investigator, habit, tradition, personal preference, and
tion of the skin or other tissues, for example, menthol
other factors.
cooling, a
...

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: E253 − 16 E253 − 17
Standard Terminology Relating to
1
Sensory Evaluation of Materials and Products
This standard is issued under the fixed designation E253; 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:
E284 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)
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 June 1, 2016May 1, 2017. Published June 2016June 2017. Originally approved in 1965. Last previous edition approved in 20152016 as
E253 – 15b.E253 – 16. DOI: 10.1520/E0253-16.10.1520/E0253-17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM 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.
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).
α (alpha) risk, n—the probability of concluding that a perceptible difference exists when, in reality, one does not. (2014)
DISCUSSION—
α risk also is known as Type 1 Error or significance level.
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—
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E253 − 17
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.
aromatic, n—perception resulting from stimulating the olfactory receptors retronasally. (2010)
assessor, n—a general term for any individual responding to stimuli in a sensory test. (2006)
DISCUSSION—
The terms assessor,jud
...

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