Objective tests and the assessment of the acoustic properties of ear-plugs
Ear-plug-type hearing protectors are commonly used in a noisy working environment. In a certification process of ear-plugs only sound attenuation is tested subjectively. There is no requirement of maximum variability in ear-plug insertion loss measured objectively like the requirement of maximum...
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| Format: | Article |
| Language: | English |
| Published: |
Institute of Fundamental Technological Research Polish Academy of Sciences
2014-01-01
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| Series: | Archives of Acoustics |
| Subjects: | |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1356 |
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| _version_ | 1849424132353032192 |
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| author | E. Kotarbińska E. Kozłowski R. Młyński |
| author_facet | E. Kotarbińska E. Kozłowski R. Młyński |
| author_sort | E. Kotarbińska |
| collection | DOAJ |
| description | Ear-plug-type hearing protectors are commonly used in a noisy working environment. In
a certification process of ear-plugs only sound attenuation is tested subjectively. There is no
requirement of maximum variability in ear-plug insertion loss measured objectively like the
requirement of maximum variability in ear-muff insertion loss. The aim of this paper is to
present the methodology and the results of insertion loss measurements for ear-plugs. The
measurements were carried out in the laboratory test site meeting EN 24869-3 requirements,
for test signals consisting of pink noise filtered through one-third octave bands with centre
frequencies of 63–8000 Hz, with a newly designed acoustic test fixture. Twenty popular models
of ear-plugs (made of foam and cotton wool), with twenty samples of each model, were
tested according to the worked out procedure. The mean values of insertion loss and standard
deviations for each frequency band of tested ear-plugs are presented. |
| format | Article |
| id | doaj-art-bae6be11dbfb4b5898c5db82a86762d2 |
| institution | Kabale University |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-bae6be11dbfb4b5898c5db82a86762d22025-08-20T03:30:19ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2014-01-01314(S)Objective tests and the assessment of the acoustic properties of ear-plugsE. Kotarbińska0E. Kozłowski1R. Młyński2Central Institute for Labour Protection – National Research Institute, Czerniakowska 16, 00-701 WarszawaCentral Institute for Labour Protection – National Research Institute, Czerniakowska 16, 00-701 WarszawaCentral Institute for Labour Protection – National Research Institute, Czerniakowska 16, 00-701 WarszawaEar-plug-type hearing protectors are commonly used in a noisy working environment. In a certification process of ear-plugs only sound attenuation is tested subjectively. There is no requirement of maximum variability in ear-plug insertion loss measured objectively like the requirement of maximum variability in ear-muff insertion loss. The aim of this paper is to present the methodology and the results of insertion loss measurements for ear-plugs. The measurements were carried out in the laboratory test site meeting EN 24869-3 requirements, for test signals consisting of pink noise filtered through one-third octave bands with centre frequencies of 63–8000 Hz, with a newly designed acoustic test fixture. Twenty popular models of ear-plugs (made of foam and cotton wool), with twenty samples of each model, were tested according to the worked out procedure. The mean values of insertion loss and standard deviations for each frequency band of tested ear-plugs are presented.https://acoustics.ippt.pan.pl/index.php/aa/article/view/1356hearing protectorsear-plugsinsertion loss. |
| spellingShingle | E. Kotarbińska E. Kozłowski R. Młyński Objective tests and the assessment of the acoustic properties of ear-plugs Archives of Acoustics hearing protectors ear-plugs insertion loss. |
| title | Objective tests and the assessment of the acoustic properties of ear-plugs |
| title_full | Objective tests and the assessment of the acoustic properties of ear-plugs |
| title_fullStr | Objective tests and the assessment of the acoustic properties of ear-plugs |
| title_full_unstemmed | Objective tests and the assessment of the acoustic properties of ear-plugs |
| title_short | Objective tests and the assessment of the acoustic properties of ear-plugs |
| title_sort | objective tests and the assessment of the acoustic properties of ear plugs |
| topic | hearing protectors ear-plugs insertion loss. |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1356 |
| work_keys_str_mv | AT ekotarbinska objectivetestsandtheassessmentoftheacousticpropertiesofearplugs AT ekozłowski objectivetestsandtheassessmentoftheacousticpropertiesofearplugs AT rmłynski objectivetestsandtheassessmentoftheacousticpropertiesofearplugs |