ASTM WK44511

    Revision of E253 - 13a Standard Terminology Relating to Sensory Evaluation of Materials and Products

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    Active Standard: E253 - 13a

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



    WK44511

    1. Rationale

    The following six terms are proposed as new additions to the terminology document. Item 1 somesthesis, n - sensory sensitivity of the skin, muscles and their attachments, visceral organs, and non-auditory labyrinth of the ear to touch, pressure, temperature, non-chemically induced pain, and bodily position and movement. (2014) Item 2 chemesthesis, n sensory sensitivity to direct chemical stimulation of pain, touch, and thermal receptors in the skin and mucous membranes (all types of skin, nose, mouth, eyes, etc.) such as the burn-like irritation from capsaicin, cooling sensation from menthol, the stinging sensation from carbonation, or tear-induction from onions. (2014) Discussion: Chemesthesis does not include the traditional sense categories of taste and olfaction. Item 3 temporal dominance of sensations (TDS), n a procedure for identifying the dominant attributes from among a list of sensory attributes as they evolve over time. In some applications of the method, the intensity of each dominant attribute is rated. (2014) Item 4 labeled magnitude scale (LMS), n a hybrid rating scale that combines ratio scale information with verbal descriptors along a line scale. (2014) Discussion: The verbal labels are marked at approximately logarithmic spacing along the line, with the high anchor point labeled strongest imaginable. Item 5 labeled affective magnitude scale, n a type of labeled magnitude scale (LMS) with verbal anchors relating to liking and disliking. There is a neutral point and equal numbers and spacing of verbal anchors on both the liking and disliking side of the neutral point. The high anchor point is labeled strongest imaginable like and the low anchor point is labeled strongest imaginable dislike. (2014) Discussion - The remaining verbal anchors are equivalent to the anchors used with the well-known nine-point hedonic scale, from like extremely to dislike extremely. Item 6 projective mapping, n -- A sensory method in which assessors arrange test samples on a surface such that samples that are perceived to have similar sensory properties are placed close to each other and samples that are perceived to have different sensory properties are placed far apart from each other. (2014) Discussion: Projective mapping is also known as Napping. Often assessors add descriptors of the test samples to the projective map, which are used to interpret the sensory differences among the samples. This technique is referred to as Ultra-Flash Profiling.


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    Work Item Status

    Date Initiated:
    12-30-2013

    Technical Contact:
    B Carr

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