Sound Solutions Mobile Testing Vehicle

Hearing Risk

Objectives of Defining Risk

It is important that companies move away from use of dBA and use the "at-risk" criteria demonstrated by Time Weighted Average (TWA) measurements.

Future claims for hearing loss can be more easily argued if the true expposure risk for each job classification, and each employee, is known and documented.

While this approach is time-consuming, it is very important that each company eventually realize that this is the only way that true risk can be established.

Not all hearing loss is caused by factory noise!

Do you have dBA measurements in all areas that are potential noise risk areas?

NO

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Measure all production and other areas that may involve noise at levels equal to or above 85 dBA
YESarrow    
Do those employees exposed to 85 dBA or higher have real TWA's of 85dBA or higher?

NO

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Document that the TWA does not place this job classification at levels equal to or above 85dBA; at risk for NIHL
YESarrow    
Is the TWA equal to or greater than 90 dBA?

NO

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Annual testing, training, and reporting required; hearing protection devices are optional
YESarrow    
Annual testing, training, reporting and use of hearing protection devices are MANDATORY    
     

Note all classifications that have employees exposed to levels at or above 85dBA.

Calculate by formula or by dosimetry the actual TWA for all employees that have levels equal to or above 85 dBA and notify or post the levels in a public area.

Sound Solutions:
303-399-3410