A real-ear field method for the measurement of the noise attenuation of insert-type hearing protectors
By: P. L. Michael ... [et al.] ; Environmental Acoustics Laboratory, Pennsylvania State University.
Contributors: Michael, P. L.; National Institute for Occupational Safety and Health. Division of Biomedical and Behavioral Sciences.; Pennsylvania State University. Environmental Acoustics Laboratory.
Series: HEW publication ; no. (NIOSH) 76-181; NIOSH technical information; DHEW publication -- no. (NIOSH) 76-181.
Publisher: U.S. Dept. of Health, Education, and Welfare, Public Health Service, Center for Disease Control, National Institute for Occupational Safety and Health, Division of Biomedical and Behavioral Science; for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1976
Place of publication: Cincinnati, Ohio; Washington
Language: eng
Number of pages: 177
Subjects: Ear -- Protection.; Noise -- Measurement.
Notes: Prepared under contract no. CDC-99-74-63.

Bibliography: p. 49-50.