Insertion loss from using double protection

Applied Acoustics

Volumn 57, Issue 4, 1999, Pages 375-385

  Behar, Alberto ^a   Kunov, Hans ^a  

^a UNIVERSITY OF TORONTO   (Canada)

Author keywords

Double protection; Hearing conservation; Hearing protectors

Indexed keywords

EID: 9744251086     PISSN: 0003682X     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0003-682X(98)00053-X     Document Type: Article

References (13)

1. CSAZ94.2-94. Hearing protectors. Canadian Standard Association, Toronto. 1994. p. 14.
2. Berger EH. Laboratory attenuation of earmuffs and earplugs both singly and in combination. Am Ind Hyg Assoc J 1983;44(2):321-9.
3. ANSI S3.19-1974. Method for the measurement of real-ear protection of hearing protectors and physical attenuation of earmuffs. New York: American National Standard Institution, 1975.
4. Damogeot A, Lateye R, Kusy A. An empirical formula for predicting the attenuation given by double hearing protection (earplugs and earmuffs). Appl Acoust 1989;28:169-75.
5. ISO 4869. Acoustics - measurement of sound attenuation of hearing protectors - subjective method. International Organization for Standardization, Geneva. 1981.
6. ISO/DIS 8353. Acoustics - estimated reduction of hearing protectors. Draft international standard, 1986. It has since been approved as an International standard ISO 4869-2. Acoustics - hearing protectors - part 2: estimation of effective A-weighted sound pressure levels when hearing protectors are worn. International Organization for Standardization, Geneva. 1994.
7. ISO/DIS 8353. Acoustics - estimated reduction of hearing protectors. Draft international standard, 1986. It has since been approved as an International standard ISO 4869-2. Acoustics - hearing protectors - part 2: estimation of effective A-weighted sound pressure levels when hearing protectors are worn. International Organization for Standardization, Geneva. 1994.
8. Behar A. Sound attenuation form combinations of earplugs and earmuffs. Appl Acoust 1991;32:149-58.
9. ISO 4869-3. Acoustics - hearing protectors - part 3: simplified method for the masurement of insertion loss of ear muff type protectors for quality inspection purposes. International Organization for Standardization, Geneva. 1989.
10. ANSI S12.42-1995. Microphone-in-real-ear and acoustic test fixture methods for the measurement of insertion loss of circumaural hearing protection devices. New York: American National Standard Institution, 1995.
11. Schroeter J, Poesselt C. The use of acoustic test fixtures for the measurement of hearing protector attenuation, Part II: Modeling the external ear, simulating bone conduction, and comparing test fixture and real-ear data. J Acoust Soc Am 1986;80:505-27.
12. Behar A. Grabtree RB. Measurement of hearing protector attenuation at ultrasonic frequencies. In press.
13. Kunov H, Giguere C. An acoustic head simulator for hearing protector evaluation. I: design and construction. J Acoust Soc Am 1989;85:1191-6.