American standard method for the measurement of the real-ear attenuation of ear protectors at threshold
Contributors: Acoustical Society of America
Published: 1957
Place of publication: [New York]
Language: eng
Number of pages: 10
Subjects: Sound -- Measurement
Other titles: Measurement of the real-ear attenuation of ear protectors at threshold
Notes: Cover title

Z24.22 - 1957

"Approved December 31, 1957."

Sponsored by the Acoustical Society of America