Influence of a reduced wearing time on the attenuation of hearing protectors assessed via temporary threshold shifts

Irle, H.; Rosenthal, Christian; Strasser, Helmut

doi:10.1016/s0169-8141(98)00022-5

Cited by 6 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hearing protective equipment standards in Europe and Turkey agreed to be En 352 [27]. Several studies have shown that the attenuation of Hearing Protection Devices (HPD) depends on their continuous use [28][29][30]. Even a very short break without wearing ear protectors significantly decreases the effective noise reduction and protection.…”

Section: Selection Of Hearing Protectorsmentioning

confidence: 99%

Archives of Mining Sciences

2022

View full text Add to dashboard Cite

In this study, the noise sources to which a coal miner, who works at the kurul panel of kilimli Colliery, Zonguldak, was exposed were investigated. These sources were positioned at different points from the surface to the workface. noise levels were measured according to the working periods of the coal miners around the machines. The results were evaluated under the Turkish noise regulation. The critical exposure times in which the coal miners could work without the use of personal protective equipment were examined according to the noise values to which they were exposed. In addition, the personal noise exposure values of the machine operators (boring machine, electro-hydraulic drill, and pick hammer) were determined during the development works. Two different types of noise measurements, with a microphone at the ear level and inside the ear protector, were conducted. The results obtained when the microphone of the personal dosimeter was at ear level, were found to be 15 dBA higher than those when the microphone was inside the ear protector. As a result, the selection methods of ear protectors were analyzed. recommendations were given for those working on the risky tasks at the panel.

show abstract

Section: Selection Of Hearing Protectorsmentioning

confidence: 99%

Archives of Mining Sciences

2022

View full text Add to dashboard Cite

show abstract

“…Theoretically, impact on protection efficiency reduces very quickly: for 5 min of nonwearing time, HPD attenuation for 8-h exposure falls from 30 to 20 dB(A). We know that a real situation is more complex: this has been calculated on an energy equivalence basis and ear physical physiological recovery can be increased by adopting short protection times [17]. However, comfort becomes a major parameter in relation to HPD selection and is enhanced by HPD good fit in the ear.…”

Section: Comfort and Efficiencymentioning

confidence: 99%