Industrial Acoustic Service - ISTIQ Noise Reduction Services

Noise Mapping

The Factory & Machinery (Noise Exposure) Regulation 1989 requires factories to conduct initial exposure monitoring. The purpose is to determine whether any of employee/s is exposed to noise greater than the action level of 85 dB (A).

The said Regulations also clearly stated that all employers are to reduce and control the workers exposure to a noise level below the permissible exposure limit of 90 dB (A) for 8 working hours. The higher the sound level, the shorter the duration of exposure is permitted.

Noise Monitoring

Subsequently, zoning will be done to identity the specific noise sources within the area. The layout of the area with machinery location is drawn. Then, the noise contours of below 85 dB (A), 85 to 90 dB (A) and above 90dB (A) are sketched on the plan and are colored for easy identifications. This is conducted by walking with the meter to the mark the distance from the noise sources for each noise contour being measured. All the points for each contour are jointed to complete the zone.

DOE Application

DOE application is a process to get approval from Department of Environmental or Jabatan Alam Sekitar Malaysia (JAS) for installation Generator Set at any site or premise.

This is mandatory requirement imposed by Malaysia Governent as stated in PERATURAN-PERATURAN KUALITI ALAM SEKELILING (UDARA BERSIH), 1978 (refer Page 73 AKTA KUALITI ALAM SEKELILING, 1974) which stated:

Kawalan terhadap pelepasan pencemar ke udara dari cerobong yang perlu melalui alat kawalan pencemaran udara bagi mematuhi standard yang ditetapkan (Standard C) sebelum dibenarkan untuk dilepaskan ke udara.

Kelulusan Bertulis bagi pemasangan peralatan kilang dan alat kawalan pencemar udara perlu diperolehi sebelum dipasang.

Noise Simulation

ISTIQ has using CadnaA: State-of-the-art Noise Prediction Software for noise simulation.

CadnaA (Computer Aided Noise Abatement) is the leading software for calculation, presentation, assessment and prediction of environmental noise. Whether your objective is to study the noise immission of an industrial plant, of a mart including a parking lot, of a new road or railway scheme or even of entire towns and urbanized areas: CadnaA is designed to handle all these tasks.

With more than 30 implemented standards and guidelines, powerful calculation algorithms, extensive tools for object handling, outstanding 3D visualization and the very user-friendly interface CadnaA is the perfect software to handle national and international noise calculation and noise mapping projects of any size.

CadnaA with extension Option APL also allows calculation, assessment and presentation of air pollutant distribution.

With its technical capabilities and its ease of use CadnaA represents state-of-the-art technology. CadnaA is developed in C/C++ and communicates perfectly with other Windows applications like word processors, spreadsheet calculators, CAD software and GIS-databases.

Noise Control Consultancy

ISTIQ have capacity to give consultation on noise control for industrial and residential. We have been consulted for a noise problem complaint by a resident who his house is near to Petrol Station. We also experienced of conducting noise mitigation at Petrochemical Plant and advise on the noise control measure.