Research Report Approved: Feb 01, 2026
RR:E33-2001

C522- Test Method for Airflow Resistance of Acoustical Materials

The precision of this research report is based on an interlaboratory study of C0522, Test Method for Airflow Resistance of Acoustical Materials, conducted in 2026. 11 laboratories reported data for this study. Each of the laboratories were asked to report 9 replicates test results on a total of 4 materials. Every “test result” represents an individual determination. Practice ASTM E691 was followed for the design of the study and analysis of the data; the details are given in ASTM Research Report No E33-2001.
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Details
Developed by Subcommittee: E33.01
Stock # : RR-E33-2001
Standard: C522