ASTM WK66651

    Revision of E1142 - 15 Standard Terminology Relating to Thermophysical Properties

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    Active Standard: E1142 - 15(2020)

    Developed by Subcommittee: E37.03 | Committee E37 | Contact Staff Manager



    WK66651


    Keywords


    Rationale

    The following change is proposed to the term thermal effusivity in Terminology E1142 to remove to a discussion the orphaned mathematical equivalence. This is consistent with sections E4.4 and A7.2.2 of the Form and Style of ASTM Standards that calls for a definition to be a single sentence with additional information following in a discussion. Thermal effusivity , e e, n a measure of a materials ability to exchange thermal energy with its surroundings. Discussion Thermal effusivity is related to thermal conductivity (), density (), specific heat capacity (cp), and thermal diffusivity (a)by: e = ( cp)1/2 = /a1/2 (12)

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    Work Item Status

    Date Initiated:
    01-21-2019

    Technical Contact:
    Shanti Singh

    Item:
    002

    Ballot:
    E37 (19-01)

    Status:
    Item Going To Next Ballot Level