Part 1
When conducting hearing tests in a multitude of environments, e.g. factories and mines, it can, at times, be very challenging to confi rm that the room or booth where the hearing tests will be conducted, is a quiet enough environment, according to SABS requirements. This article provides guidelines for this, as well as an approach to mobile hearing.
Part 2
This article might save you thousands, if not ten thousands, of rands every month, so it’s worth a careful read. There are many incorrect perceptions around calibration standards, some of which your colleagues may be practicing, thereby incurring unnecessary costs. Nowhere in a standard, Act or circular instruction is there a requirement to calibrate your audiometer every time you move it. The calibration standard in South Africa for occupational health screening is SANS 10154-1 (Calibration of pure-tone audiometers, Part 1: Air conduction).
Part 3
In the first part of this three-part article, I discussed the challenges on ensuring that the noise levels of testing environments are according to the SABS standards. This is especially challenging when moving from factory to factory. In Part two, I went into detail on how to ensure that your mobile audiometer is always calibrated according to SABS standards, even after it has been moved. In the f inal part of this series, I will discuss the standards with which audiometers need to comply, to operate according to SANS 10083.