Noise Controls
Noise is a Hazard that can and must be controlled. This can be by:
Vibration Controls
Noise & Vibration Control Tools The main tool for implementing engineering methods to control noise and vibration is knowledge. Vipac Engineers & Scientists has over 25 years of experience in this area with technical skills in:
To find out more about these services, please email:
Exposure to Vehicle Noise and Vibration is a Health Hazard
Who is at Risk?
Operators of construction and mining machinery, fork lifts, off-road vehicle drivers, passengers, etc.
Consequences ?
Workplaces where workers are exposed to excessive Noise and vibration experience increased compensation costs and lost work days through absenteeism, work inefficiencies and early retirement.
Are There Recommended Vibration Limits and Guidelines ?
YES - these are set-out in Australian and British Standards AS 2670.1 and BS 6841.
And Noise Legislation ?
The NSW Occupational Health and Safety (Noise) Regulation proclaims statutory levels of daily exposure of 85dB(A) with peak levels of 140dB, measured in accordance with Australian/New Zealand AS/NZS 1269-1998.
How Can Your Company Ensure it is Complying with The Above ?
By implementing a noise and vibration control program to identify offending equipment and put in place engineering and/or administrative control measures to reduce workers' exposure to vehicle noise/vibration.
But the first step is to assess the noise/vibration environment of your equipment. VIPAC can do it for you with virtually no interruption to your normal operations.
To find out more about these services, please email:
| Company: | ABC Pty Ltd | Vehicle ID: | Fork Lift (Unit 27) |
| Test Date: | 23.9.98 | Operator Name: | Steeve Himself |
| Time: | morning shift | Typical Daily Exposure: | 8 hours |
| Test Details: | Dispatch Area | ||
| Test Conditions: | Typical working conditions | ||
| Test Engineer: | Signature: | ||
Summary of Results
| AS 2670.1 - 1990 | BS 6841 - 1987 | ||||
| Location | Direction | RMS Acceleration (m/s2) | Recommended Daily Exposure Time FDP Limit (Hours) | CrestFactor | Vibration Dose Value (VDV)(m.s-1.75) |
| OperatorSEAT | VerticalFore-AftSide-Side | - - - |
5 12> 24 |
- - - |
162.62.5 |
| CabFLOOR | VerticalFore-AftSide-Side | - - - |
7 24> 24 |
- - - |
10.52.22.2 |
Engineer's Recommendations
| Vibration Levels re Recommended Limits | Recommendation | Vertical | Fore-Aft | Side-Side |
| Well BELOW | No action | |||
| BELOW | Possible action indicated | |||
| Just at Limits | Review exposure conditions | |||
| Well ABOVE | Immediate action indicated |
| Company: | ABC Pty Ltd | Vehicle ID: | Fork Lift (Unit 27) |
| Test Date: | 23.9.98 | Operator Name: | Steeve Himself |
| Time: | morning shift | Typical Daily Exposure: | 8 hours |
| Test Details: | Dispatch Area, Noise Levels in Operator Cab at Ear Level | ||
| Test Conditions: | Typical working conditions | ||
| Test Engineer: | Signature: | ||
Summary of Results
| Activity | Measured Noise LevelLAeq,Ti (dB(A)) | Pascal Squared Value(Pa2) | Exposure Duration Ti (Hours) | Partial Exposure EA,Ti(Pa2h) | Partial Noise ExposureLevel (LAeq,8h) (dB(A)) |
| 1 (idling) | 74.70 | 0.01 | 1.50 | 0.02 | 67.4 |
| 2 (load/unload) | 90.30 | 0.43 | 5.00 | 2.14 | 88.3 |
| 3 (travel) | 89.80 | 0.38 | 0.50 | 0.19 | 77.8 |
| 4 (Rest) | 65.00 | 0.00 | 1.00 | 0.00 | 56.0 |
| Total Duration of Exposure (T) | 8.00 | Hours |
| Total Noise Exposure (EA,T) | 2.35 | Pa2h |
| Average Noise Level, LAeq, 10h | 88.7 | dB(A) |
| Normalised Noise Exposure Level, LAeq, 8h | 88.7 | dB(A) |
| Adjustment for Extended Workshift | 0 | dB(A) |
| Adjusted Normalised Noise Exposure Level, LAeq, 8h | 88.7 | dB(A) |
| Maximum Allowable Period of Exposure, Based on 85 dB(A) | 3.4 | Hours |
| Class of Hearing Protection Required | 1 |
Engineer's Recommendations
| Noise Levels re 85dBA | Activity 1 | Activity 2 | Activity 3 | Activity 4 |
| No action | ||||
| Possible action indicated |