Exposure measurements are the only tool that turns the subjective impression "it is loud in the plant" into hard, objective legal evidence. At Nyquista, we provide precise data for each workstation (LEX,8h value), compared against the strict limits of the Labor Code. We do not measure machine noise. We measure your business risk.

Why is putting a meter to a machine not enough?

Many employers mistakenly believe that measuring the loudness of the noisiest press solves the problem. It is a trap.
Occupational exposure is not a momentary reading. It is the total "dose" of acoustic energy absorbed by an employee during an 8-hour workday. It includes time at the machine, moving around the shop floor, breaks, conversations, and variability in the production cycle.

Two seemingly identical workstations can generate a completely different noise dose. Employee "A" operates a milling machine for 6 hours. Employee "B" operates it for 2 hours, and spends the rest of the shift in the warehouse. A regular measurement "at the machine" will not show this difference. A reliable assessment according to the ISO 9612:2025 standard analyzes this process with surgical precision.

When is a professional measurement your obligation?

Our services are the foundation of safety in industry:

• Occupational risk assessment (Legal requirement): Labor law and ministerial regulations (MAI) categorically require the employer to assess risk at noise-exposed workstations. A study based on certified measurement is the only document that truly protects you in court.

• Labor Inspectorate or Sanitary Inspectorate visit: The labor inspector will ask one question: "what exposure does the operator have at workstation X?". The proper answer is a specific number, supported by a report. Lack of up-to-date measurement documentation means one thing to the inspector: violation of OHS regulations.

• Investment verification (ROI): Have you installed sound-insulating screens, changed work organization, enclosed a noisy unit? Measurement "after changes" is the only way to check whether the allocated budget delivered the intended protective effect.

• Selection of hearing protectors (PPE): Headphones bought "by eye" are a hazard. A protector that is too weak does not prevent hearing loss. A protector that is too strong (over-attenuation) isolates the employee, making it impossible to hear warning signals (e.g., a forklift horn), which leads to accidents. The selection of protectors must be strictly based on the actual noise spectrum at the workstation.

Where do we work?

We operate in environments with the highest degree of acoustic difficulty:
Production halls, assembly lines, workshops and carpentries, logistics centers and warehouses, sorting facilities, maintenance facilities, and all processing plants.

How do we measure? (Technology and Standards)

In OHS matters, there is no room for estimates. We apply the methodology of the latest ISO 9612:2025 standard. Depending on the specifics of the workstation, we select the optimal strategy: analysis of individual activities, analysis of the entire workstation, or full-day dosimetric (personal) measurement.

All tests are performed with Class 1 accuracy equipment (calibrated). We compare measured values with absolute Polish hearing protection standards:

• LEX,8h = 85 dB (Permissible noise exposure level referenced to an 8-hour daily working time).

• LAmax = 115 dB (Maximum A-weighted sound level).

• LCpeak = 135 dB (Peak C-weighted sound level).

What do you receive? A report ready for inspection

The final result of our work is a comprehensive engineering document. The report contains:
calculated exposure results for each workstation, comparison with critical values, objective occupational risk assessment, and a clear indication of zones requiring priority intervention.
We also provide specific technical and organizational recommendations that will help you reduce noise in compliance with legal requirements.