Standard Test Method for
Impedance and Absorption of Acoustical Materials Using A
Tube, Two Microphones and A Digital Frequency Analysis
System1
This standard is issued under the fixed designation E 1050; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
Click below to download Astm E 1050 – 98 Pdf free
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Click here to Astm E 1049 – 85 (Reapproved 1997) Pdf free download