Complete Assessment Guide
Workplace Noise Assessment:
A Step-by-Step Guide
Learn how to plan, conduct, and document effective workplace noise assessments that protect workers and satisfy regulatory requirements.
Try SoundPLANmanda Free →Why Conduct Workplace Noise Assessments?
Legal Requirement
OSHA, EU Directives, and most national regulations require employers to assess noise exposure when levels may exceed action values (typically 80-85 dBA).
Protect Worker Health
Noise-induced hearing loss is permanent and preventable. Proper assessment identifies at-risk workers before damage occurs.
Prioritize Controls
Noise maps reveal which areas need engineering controls, helping you allocate budget to highest-impact improvements.
Audit Documentation
Documented assessments demonstrate due diligence and provide evidence for insurance, certifications, and legal defense.
The 6-Step Noise Assessment Process
📋 Plan Your Assessment
Identify work areas, shifts, and jobs to assess. Obtain floor plans and production schedules. Determine measurement strategy (task-based, job-based, or full-day).
🔊 Select & Calibrate Equipment
Use Class 1 or Class 2 sound level meters with current calibration certificates. Check calibration before and after each session using an acoustic calibrator.
📍 Conduct Measurements
Position microphone 10-40cm from worker’s ear. Record LAeq for each measurement location or task. Note LCpeak for impulsive noise sources. Document conditions and anomalies.
📊 Import & Analyze Data
Import measurements into SoundPLANmanda. Software generates noise contour maps, calculates worker exposures, and computes uncertainty values automatically.
⚠️ Compare to Limits
Compare LEX,8h results (with uncertainty) against regulatory limits. Identify workers or areas exceeding action or limit values. Flag areas requiring controls.
📄 Generate Reports & Act
Create comprehensive reports with maps, data tables, and recommendations. Communicate findings to management. Implement controls and schedule follow-up assessments.
Equipment Checklist
Essential Equipment
- ✅ Class 1 or 2 integrating sound level meter
- ✅ Acoustic calibrator (e.g., 94 dB or 114 dB)
- ✅ Windscreen for outdoor/ventilation areas
- ✅ Tripod or extension arm
- ✅ Spare batteries
- ✅ Calibration certificates
Documentation Materials
- ✅ Floor plan or site map
- ✅ Measurement log sheets
- ✅ Production schedule / work roster
- ✅ Camera for documenting noise sources
- ✅ PPE for high-noise areas
- ✅ SoundPLANmanda software license
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