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2. Hearing protection fit-testing - Wikipedia

   en.wikipedia.org/wiki/Hearing_protection_fit-testing

   Hearing protector fit-testing is a method that measures the degree of noise reduction obtained from an individual wearing a particular hearing protection device (HPD) - for example, a noise canceling earplug or earmuff. Fit testing is necessary because noise attenuation varies across individuals.

3. Hearing protection device - Wikipedia

   en.wikipedia.org/wiki/Hearing_protection_device

   Dual hearing protection refers to the use of earplugs under ear muffs. This type of hearing protection is particularly recommended for workers in the mining industry because they are exposed to extremely high noise levels, such as an 105 dBA TWA. [25] [26]} Fortunately, there is an option of adding electronic features to dual hearing protectors ...

4. Pure-tone audiometry - Wikipedia

   en.wikipedia.org/wiki/Pure-tone_audiometry

   This prevents the non-test ear from detecting the test signal presented to the test ear. The threshold of the test ear is measured at the same time as presenting the masking noise to the non-test ear. Thus, thresholds obtained when masking has been applied, provide an accurate representation of the true hearing threshold level of the test ear. [13]

5. Taking Your First Hearing Test? Here’s What to Expect - AOL

   www.aol.com/lifestyle/taking-first-hearing-test...

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6. Hearing test - Wikipedia

   en.wikipedia.org/wiki/Hearing_test

   A hearing test provides an evaluation of the sensitivity of a person's sense of hearing and is most often performed by an audiologist using an audiometer. An audiometer is used to determine a person's hearing sensitivity at different frequencies. There are other hearing tests as well, e.g., Weber test and Rinne test.

7. Earplug - Wikipedia

   en.wikipedia.org/wiki/Earplug

   The OSHA training manual for inspectors says the adequacy of hearing protection for use in a hazardous noise environment should be derated to account for how workers typically wear protection relative to how manufacturers test the protector's attenuation in the laboratory. [41] For all types of hearing protection, OSHA's derating factor is 50%.

8. Audiometry - Wikipedia

   en.wikipedia.org/wiki/Audiometry

   A pure tone audiometry hearing test is the gold standard for evaluation of hearing loss or disability. [medical citation needed] Other types of hearing tests also generate graphs or tables of results that may be loosely called 'audiograms', but the term is universally used to refer to the result of a pure tone audiometry hearing test.

9. Safe-in-Sound Award - Wikipedia

   en.wikipedia.org/wiki/Safe-In-Sound_award

   The Acoustics Sub-Working Group work with the astronauts to monitor noise levels on the Space Station, identify noisy tasks or equipment for their Noise Hazard Inventory, test equipment for noise levels before it is sent to the ship, develop and implement solutions to reduce noise levels, recommends hearing protective devices to reduce crew ...