Biochem Laboratories offers DOSH-approved, on-site audiometric testing across Penang, Johor, and Selangor. Our DOSH-registered OHDs bring testing directly to your workforce, ensuring compliance with 2019 Noise Exposure Regulations.

Mobile Audiometric Testing

Our Safety And Health Assessment Services

UNDERSTANDING MOBILE AUDIOMETRIC TESTING

This test measures an employee’s hearing across various frequencies to detect early signs of Noise-Induced Hearing Loss (NIHL).

EMPLOYER REQUIREMENTS IN MALAYSIA

Under the 2019 OSH Regulations, employers must implement an audiometric testing programme with the following conditions:

Exposure Limits: Mandatory for workers exposed to a Noise Exposure Limit (NEL) of 85 dB(A) or higher over an 8-hour Time-Weighted Average (TWA).
HCP Integration: Testing must be part of the company’s broader Hearing Conservation Programme (HCP).
Approved Facilities: Tests must be conducted at a DOSH-registered Audiometric Testing Centre (ATC), whether static or mobile.
Legal Anchor: OSH (Noise Exposure) Regulations 2019 Replaced the 1989 Factories & Machinery Regulations in June 2019. Action Level: 82 dB(A) | NEL: 85 dB(A) | Exchange Rate: 3 dB

WHY MOBILE AUDIOMETRIC TESTING SERVICES MATTER

DOSH Compliance: Avoid fines under OSHA 1994 (Amendment 2022) by running annual audiometric testing for every worker exposed at or above the NEL.
Zero Travel Downtime: Workers tested on-site stay on-shift. Eliminate the productivity loss of sending staff to off-site clinics.
Early NIHL Detection: Catch standard threshold shifts before they become permanent hearing loss, protecting your workers and reducing SOCSO claim exposure.
Single-Vendor Convenience: Bundle audiometry with Noise Risk Assessment, CHRA, LEV, and medical surveillance for a complete Hearing Conservation Programme delivered by one accredited team.

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WHAT IS MEASURED DURING AUDIOMETRIC TESTING

Audiometric testing uses pure tone, air conduction at multiple frequencies, taken separately for each ear. The audiogram is then reviewed by a DOSH-registered OHD for fitness-to-work determination and follow-up action.

Parameter	Specification
Test Type	Pure tone, air conduction
Frequencies Tested	500, 1000, 2000, 3000, 4000, 6000, 8000 Hz
Test Per Ear	Both ears tested separately
Pre-Test Quiet Period	Minimum 14 hours below 80 dB(A), no PHP substitute
Baseline Timing	Within 3 months of starting NEL-exposed work
Repeat Frequency	Annually (or sooner if STS detected)
Report Review	DOSH-registered Occupational Health Doctor (OHD)

WHAT IS MEASURED DURING AUDIOMETRIC TESTING

Step 1 — Pre-Test Planning We confirm worker headcount, exposure history, and shift schedules. Workers are briefed on the 14-hour quiet period requirement before test day.
Step 2 — Mobile Unit Deployment Our DOSH-approved mobile audiometric unit arrives on-site with sound-treated booths and calibrated equipment, set up in a location verified for background noise compliance.
Step 3 — Screening Questionnaire Each worker completes a screening questionnaire covering medical history, noise hobbies, and current PHP use. Our trained audiometric technician confirms test readiness.
Step 4 — Audiometric Test Pure tone air conduction test across the 7 mandated frequencies for each ear. Results compared to the worker’s baseline audiogram where available.
Step 5 — OHD Review and Reporting Audiograms are reviewed and interpreted by a DOSH-registered OHD. We deliver individual reports plus a group summary, including any required STS/NIHL notification to DOSH within 7 days.