ASTM WK46691

    Revision of E1007 - 13b Standard Test Method for Field Measurement of Tapping Machine Impact Sound Transmission Through Floor-Ceiling Assemblies and Associated Support Structures

    (What is a Work Item?)

    Active Standard: E1007 - 14

    Developed by Subcommittee: E33.03 | Committee E33 | Contact Staff Manager


    1. Rationale

    The standard currently states that reverberation time normalized impact sound pressure level (RTNISPL) and its corresponding single number rating, normalized impact sound rating (NISR) are not appropriate for receiving rooms of 150 m3 or greater. However there are some codes which currently specify the NISR rating. A number of members of the sub-committee felt that the standard should explain why the NISR is not appropriate in large rooms and indicate that the proper isolation metric in these cases is the non-normalized ISR.


    absorption normalized impact sound pressure level; apparent impact insulation class; impact sound insulation; impact sound pressure level; impact sound rating; normalized impact sound rating; reverberation time normalized impact sound pressure level; tapping machine;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    Gary Mange


    E33 (14-02)

    Ballot Item Approved as E1007-2014 and Pending Publication