Noise Measurement & Assessment
To maintain a safe workplace, it’s essential to regularly identify and evaluate noise levels and types that may be harmful to the hearing of your workers. Hearlink can conduct noise measurement tests to determine the extent of any noises that may be damaging. We can also advise on what to do if these measurements indicate excessive noise, and provide a range of solutions to minimise the risk of hearing damage occurring.
Industrial Noise Surveys
A noise survey report, otherwise known as a noise assessment, is conducted to measure and report on noise levels at various locations. This involves testing specific work functions and operator levels within the industrial workplace, providing an excellent and concise way of establishing sound energy levels. This method of noise measurement allows for the calculation of exposure time limits* for employees as well as determining the adequacy of current hearing protection in use. If exposure limits are exceeded, occupational health and safety obligations may not be met, making testing essential to maintain compliance.
* Noise Exposure Standard in Victoria: 85dBA noise level for 8 hours and peak noise level 140dBC. For every 3dB above this, the duration of exposure is halved, e.g. If the noise level is 88dBA, the maximum duration a worker may work is 4 hours. The appropriate attenuation rating of a hearing protector will result in keeping the exposure below the standard.
Personal Noise Exposure Calculations
An individual’s personal noise exposure for an entire shift can be calculated using a dosimeter (also known as a dosebadge). A dosimeter is an electronic sound recording device that can be fitted to an employee for the duration of their shift, giving an accurate noise assessment that can determine if harmful levels of noise are present. It can effectively measure and record sound energy levels experienced throughout an entire work shift. This type of noise measurement device is generally used for employees that have more than one job function, including workers who move about the premises frequently or who are exposed to intermittent noise sources. For example, an individual that works in a metal workshop using hammers may not be exposed to a constant noise, so should wear a dosimeter that will provide an accurate noise assessment measuring across the entire shift.
For more information on measuring and assessing noise levels in the workplace, view our guide for assessing and fixing noise problems at work.