International Standard Compliance
SoundPLANmanda automates the complex requirements of ISO 9612:2009, helping you produce valid, defensible noise exposure assessments.
See ISO 9612 Features →ISO 9612:2009 is the international standard for determining occupational noise exposure. It specifies methods for measuring noise levels and calculating worker exposure with quantified uncertainty.
The standard requires rigorous documentation, proper sampling strategies, and uncertainty calculations—all of which SoundPLANmanda handles automatically.
The standard defines three approaches—SoundPLANmanda supports all of them
Identify discrete work tasks, measure noise during each task, and combine based on task durations.
Best for: Varied job rolesTake random samples throughout the workday for workers with similar noise exposure patterns.
Best for: Similar exposure groupsContinuous measurement over entire shift using dosimeters or logging sound level meters.
Best for: Complex/mobile workersSoftware automatically calculates combined standard uncertainty (u) and expanded uncertainty (U) per ISO 9612 Annex C. No manual formulas needed.
Generate ISO 9612 compliant reports with all required fields: measurement conditions, instrumentation, uncertainty values, and conclusions.
Automatically calculate LEX,8h (daily noise exposure level) and weekly exposure from your measurement data with proper time-weighting.
Compare results against OSHA (90 dBA), NIOSH (85 dBA), and EU Directive limits with automatic action level warnings.
⚠️ Insufficient number of measurements
Solution: SoundPLANmanda recommends minimum sample sizes based on your chosen strategy
⚠️ Ignoring uncertainty in conclusions
Solution: Software applies upper confidence limit when comparing to exposure limits
⚠️ Poor documentation of measurement conditions
Solution: Built-in fields capture equipment, calibration, environmental factors
⚠️ Not accounting for impulsive noise
Solution: LCpeak values tracked and reported alongside LAeq measurements
Our team can demonstrate how SoundPLANmanda simplifies compliant noise assessments.
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