Although the ‘Control of Noise at Work Regulations 2005’ specify three levels of
noise exposure, people are rarely exposed to such steady noise levels throughout
their working day.
Noise exposure will vary depending upon location, type of activity undertaken, type
of equipment used, time spent in these situations and the effect of other nearby
noise sources (e.g. other machines or equipment). These factors need to be assessed
and analysed to establish the overall likely noise exposure. Only then can noise
exposure be compared with the levels specified in the regulations.
We analyse noise exposure using a Class 1 Real Time Analyser. This measures and records
multiple noise parameters every second as well as calculating cumulative exposures
for the period of measurement.
We can measure instantaneous noise levels at various locations where a person may
work, ascertain how much time is spent at each location and then calculate likely
daily noise exposure together with an assessment of how this may vary if the work
pattern is changed. This approach gives a much better assessment of noise exposure
than traditional dosimetry.
Undertake a logical and comprehensive noise survey that gives you:
A clear and understandable summary of your situation (so you don't need to be an
The prioritised actions you should undertake (so you save time and money by tackling
the right things).
Practical, common-sense advice and solutions (so you achieve noise exposure reduction
at minimal cost).
All the background information (to ensure you have a full record of your situation).
Noise Surveys and Assessments
Occupational noise surveys in the workplace
Environmental noise monitoring and measurements
Octave band analysis, data logging and time history graphs
The Real Time Analyser allows us to produce a graph so we can analyse the noise
The datalogging function shows how the noise varies from second by second. This allows
us to see which is the noisiest part of process.
The software allows us to calculate the effect of removing or reducing the noise
from a particular part of a process. This means that we can predict the effectiveness
of any planned sound reduction measures.
The noise meter has Octave Band Analysis capability.
This measures the noise level at various frequencies, as shown above.
This type of frequency analysis is the preferred method of assessing whether the
type of hearing protection that is in use is suitable for the type and intensity