Occupational Noise Survey

The purpose of a Noise Assessment is to:

  • Identify areas in the workplace and any operators exposed to noise levels above the:
    First Action Level (LEP, d) of 80 dB(A), with a limit of 112 dB(A) peak noise pressure.
    Second Action Level (LEP, d) of 85 dB(A), with a limit of 140 dB(A) peak noise pressure.
    Identify Octave Band Frequencies, Peak sound pressure levels and Personal Daily noise exposure (expressed as an 8-hour time-weighted average ‘Lepd’)
  • Provide a detailed assessment of the suitability of any personal hearing protection provided by the company, based on the results of the survey. Also to give further recommendations on where noise levels can be reduced and to give recommendations on the actions required under the Physical (Noise) Agents Directive, Directive 2003/10/EC, to minimise employees exposure.
  • Provide static octave, peak and Lepd area readings in all locations and personal dosimeter readings on specific personnel.
    Prepare Noise maps of all machinery and operator workstations/areas.

Methodology

Measurements are made using a precision sound level meter (SLM) is utilised for the survey, type CEL 450 SLM, the SLM is fitted with a microphone, incorporating a wind shield.

All measurements are in accordance with the requirements of Directive 2003/10/EC and follow the methods described in the Health & Safety Executive (HSE) publication, Reducing Noise at Work Guidance, 1998.

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