ASTM WK30705

    Revision of E1050 - 08 Standard Test Method for Impedance and Absorption of Acoustical Materials Using A Tube, Two Microphones and A Digital Frequency Analysis System

    (What is a Work Item?)

    Active Standard: E1050 - 12

    Developed by Subcommittee: E33.01 | Committee E33 | Contact Staff Manager



    WK30705

    1. Rationale

    In order to verify the precision and bias statement in the standard is correct, this work item will commission a round robin coordinated with ASTM C522 testing to establish the current repeatability and reproducibility for ASTM E1050 with multiple materials. It has been many years since a round robin was held for ASTM E1050.


    Keywords

    absorption; frequency response function; impedance; impedance ratio; impedance tube; normal incidence sound absorption coefficient; specific normal acoustic impedance; transfer function; Acoustical tests; Digital sound transmission; Impedance; Microphones; Signal/noise determination; 0Sound transmission--building materials/applications; Two-microphone method; ICS Number Code 091.120.20
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    10-21-2010

    Technical Contact:
    Kevin Herreman

    Status:
    Draft Under Development