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The
function of an Audiometric Rooms is to provide proper acoustical
environment so that tests can be conducted without much interference
from outside noise. Therefore, location of where the audiometric
room to be placed is the single most important decision for
one to make before constructing the Audiometric Rooms.
ISTIQ
Audiometric Rooms offer the best solutions to overcome the
problems in audiometric tests. The room is designed to have
adequate ventilation and lighting so the patient and tester
will be comfortable during hearing evaluation.
APPLICATIONS
ISTIQ Audiometric Rooms are suitable for a wide spectrum of
applications. It is specially designed to suit everyone's
need where noise control is the main concern.
Typical
applications are as follows:-
•
hospitals
• medical centres
• factories
• industrial testing stations
• administration areas
SELECTION
GUIDELINES
ISTIQ Audiometric Rooms consider two important stages to achieve
the required room specifications. Firstly, is to determine
the background noise levels. Then, the type of room which
is going to be implemented will be selected. The room chosen
should provide ample noise reduction to bring the internal
noise down to those prescribed by The Department of Occupational
Safety and Health (DOSH).
Sound
pressure level of the proposed location of an audiometric
room must be measured. This includes each test tone of octave
band centre frequencies. From the measurement, the type of
audiometric room can be selected, whether a single or double
wall panel.
The
Department of Occupational Safety and Health (DOSH) has specified
that the maximums allowable sound level inside the Audiometric
room are as follows: -
| Frequency(Hz) |
500
|
1k
|
2k
|
4k
|
8k
|
|
dB
|
27
|
30
|
35
|
42
|
41
|
CONSTRUCTION
ISTIQ Audiometric Rooms are fabricated from a 4" (100mm) thick,
steel panel which weighs approximately 50kg per sq. metre.
This panel has a solid outer surface and a perforated inner
surface and is filled with high density acoustical fill and
damping material.
Inert,
heat resistant, non-combustible type of different acoustical
fill with different densities is particularly selected to
give the optimum overall noise absorption.
Floating
floor normally will be incorporated at the bottom of the audiometric
room to reduce the transmission loss of the noise.
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