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Occupational Noise Surveys in terms of Noise-Induced Hearing Loss Regulation

Noise can be defined as annoying, physiologically or unwanted sound. Noise-induced hearing loss can occur from prolonged exposure to noise levels at or above 85 dB(A).

Complaisance requirements

  • Occupational Health, and Safety Act, Act No. 85 of 1993 (In accordance with the Noise Induced Hearing Loss Regulations)

Sampling Methodology

  • SANS 10083: “The Measurement and Assessment of Occupational Noise for Hearing Conservation Purposes

Legal references

  • Occupational Health and Safety Act, Act No 85 of 1993
  • Noise-Induced Hearing Loss Regulation
  • SANS 10083: “The Measurement and Assessment of Occupational Noise for Hearing Conservation Purposes

Noise is one of the greatest risks most industries face and noise-induced hearing loss is one of the most common occupational diseases for which compensation payouts are made.

According to the Noise-induced hearing loss regulations promulgated under the Occupational Health and Safety Act, all employers need to assess the risk of noise exposure for their employees. Once the risks are quantified and evidence exists that noise exposure may be at or exceed the noise rating limit of 85dB(A), a monitoring programme needs to be designed and area measurements need to be taken so that noise zones can be demarcated. Once these demarcations are made it is the responsibility of the employer to reduce noise liberation and exposure by implementing controls.


Occupational Noise Measurement Equipment

Personal noise sampling can also be done to determine individuals employees exposure to noise. It may be beneficial to take personal samples when you have employees moving through areas such as process controllers, cleaners and supervisory staff. These samples cannot, however, replace area noise demarcation samples and are only beneficial when done in conjunction with area samples to build exposure profiles for employees

Legislation that applies

Noise-Induced Hearing Loss Regulations of 2003

SANS 10083