Noise Emissions Testing
Neuguard provides structured, standards-based noise emissions testing to quantify machinery sound pressure and sound power levels, supporting CE/UKCA compliance, technical documentation, and workplace risk control.
Standards-Led Testing Approach
We align our measurement methodology with the applicable product or machinery standard wherever possible.
Type-C Standards (Product-Specific Codes)
Where a harmonised Type-C standard exists for a machine category, we follow the defined noise test code. This ensures:
- Correct operating conditions and duty cycles
- Prescribed microphone positions
- Defined environmental requirements
- Repeatable, defensible test results suitable for technical documentation
This approach is critical where declared emission values form part of the manufacturer’s Declaration of Conformity.
Generic Industrial Noise Measurement Standards
Where no product-specific code applies, we perform testing in accordance with recognised industrial standards, including the EN ISO 11200 series (measurement of emission sound pressure levels at the workstation and other specified positions).
These methods allow us to:
- Measure A-weighted emission sound pressure levels (LpA)
- Apply environmental corrections
- Determine uncertainty
- Produce compliant reporting for technical files and risk assessments
Sound Power Level Determination
Where required, we can determine or calculate sound power levels (LWA) in accordance with EN ISO 3744.
This typically involves:
- Measurement over a defined measurement surface surrounding the machine
- Use of calibrated Class 1 instrumentation
- Environmental correction factors
- Calculation of sound power from spatially averaged sound pressure levels
Sound power determination is particularly valuable where:
- Machinery is being placed on the EU / UK market
- Emission values must be declared
- Comparative performance between machines is required
- Clients are seeking design validation data
Equipment & Methodology
Our testing typically utilises:
- Calibrated Class 1 sound level meters
- Acoustic calibrators (pre- and post-test verification)
- Environmental condition monitoring
We document:
- Test conditions and machine operating state
- Measurement locations and geometry
- Environmental noise corrections
- Calculation methodology
- Measurement uncertainty
All outputs are structured to integrate directly into technical files, O&M manuals, and risk assessments.
Practical, Compliance-Focused Reporting
Beyond measurement, we interpret the results within the context of:
- Machinery Regulations / Directives noise declaration requirements
- Workplace exposure considerations
- Engineering noise control opportunities
- Residual risk communication
Where noise levels exceed typical design expectations, we can advise on practical engineering control measures (enclosures, damping, isolation, absorption) and verify improvements through re-testing.
Interested in our noise testing services? We’re here to help!
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