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ASTM WK31551

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Work Item: ASTM WK31551 - Revision of E253 - 10 Standard Terminology Relating to Sensory Evaluation of Materials and Products


Active Standard: E253 - 13

Developed by Subcommittee: E18.01 | Committee E18 Home | Contact Staff Manager



1. Rationale

Rationale: Item 001 is being balloted for revision based on a persuasive negative vote on a previous ballot. Specifically, the discussion was added to clarify how malodor is context specific. Item: 001 malodor, n an odor that is unpleasant or disliked when perceived in a specific context. (2011) DISCUSSION: For example, sweaty is considered a malodor by many people when it is present on the human body. However, sweaty notes are common in many cheeses and may not be considered malodor in that context. Rationale: Items 002-004 are being balloted for revision based on persuasive negative votes on a previous ballot. The three items also have been revised to harmonize the wording used in each definition of these related methods. Item: 002 triangle test, n a method of discrimination testing comprised of three coded samples: two of which are samples of the same stimulus, e.g., two samples from the same lot of product, and one is a sample of another stimulus. The assessor is asked to select the one sample that is different from the other two. (2011) Item: 003 two-of-five test, n a method of discrimination testing comprised of five coded samples: two of which are samples of the same stimulus, e.g., two samples from the same lot of product, and three are samples of another stimulus. The assessor is asked to determine which two samples are different from the other three. (2011) Item: 004 duo-trio test, n a method of discrimination testing comprised of two coded samples and one identified reference. One of the coded samples and the reference are samples of the same stimulus, e.g., two samples from the same lot of product. The other coded sample is a sample of another stimulus. The assessor is asked to select which of the two coded samples is different from the reference or which of the two coded samples is the same as the reference. (2011) Rationale: Item 005 is being balloted as a new term to be added to the standard because the method of tetrads is now used as a method of discrimination testing within the profession. Item: 005 tetrad test, n a method of discrimination testing comprised of four coded samples: two of which are samples of the same stimulus, e.g., two samples from the same lot of product, and the other two are samples of another stimulus. The assessor is asked to determine which two samples are different from the other two. (2011) Rationale: Items 006-009 are being balloted for revision because they currently are classified as adjectives but are defined as nouns. The definitions are being revised to be consistent with adjectives. Item: 006 bitter, adj pertaining to the taste produced by substances such as quinine or caffeine when in solution. (2011) Item: 007 salty, adj pertaining to the taste produced by substances such as sodium chloride when in solution. (2011) Item: 008 sour, adj pertaining to the taste produced by substances such as citric acid when in solution. (2011) Item: 009 sweet, adj pertaining to the taste produced by substances such as sucrose when in solution. (2011)


Keywords

Sensory analysis; Terminology;

Citing ASTM Standards

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Work Item Status:
Date Initiated:01-07-2011
Technical Contact: B Carr

Item: 001
Ballot: E18 (11-05)
Status: Ballot Item Approved as E253-2012 and Pending Publication

Item: 006
Ballot: E18 (11-01)
Status: Ballot Item Approved as E253-2011 and Pending Publication

Item: 006
Ballot: E18 (11-05)
Status: Ballot Item Approved as E253-2012 and Pending Publication

Item: 007
Ballot: E18 (11-01)
Status: Ballot Item Approved as E253-2011 and Pending Publication

Item: 007
Ballot: E18 (11-05)
Status: Ballot Item Approved as E253-2012 and Pending Publication

Item: 008
Ballot: E18 (11-01)
Status: Ballot Item Approved as E253-2011 and Pending Publication

Item: 008
Ballot: E18 (11-05)
Status: Ballot Item Approved as E253-2012 and Pending Publication

Item: 009
Ballot: E18 (11-05)
Status: Ballot Item Approved as E253-2012 and Pending Publication

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