Accredited Ventilation Acceptance Testing
A newly built or modernised ventilation system must be accepted technically before the building is handed over for occupancy. Ventilation acceptance covers both the verification of physical parameters (air flow rates and volumes at supply and extract terminals) and indoor environment quality parameters: microclimate, microbiological air purity, and noise and vibration levels generated by ventilation equipment. OIKOS performs all measurements under PCA accreditation No. AB 934 (PN-EN ISO/IEC 17025) — covering both physical and microbiological parameters in a single commission.
Why OIKOS for Ventilation Acceptance
Four reasons our ventilation acceptance testing stands out — physical, microbiological and acoustic measurements in one commission:
- Full scope in one commission: airflow rates, microclimate parameters, microbiological purity, noise and vibration — one report for the entire system
- AB 934 accreditation covers both physical and microbiological parameters — results accepted by supervisory authorities and investors
- Verification against design documentation — deviations from specification detected before the HVAC installer's warranty period expires
- 35+ years of environmental and technical measurement experience, more than 1,000 clients
Airflow, Microclimate, Microbiology, Acoustics — One Commission
OIKOS performs all measurements necessary for ventilation system acceptance within a single commission. Airflow rate and volume measurements verify that the installation achieves the values specified in the design. Microbiological air tests detect the presence of mould fungi, bacteria and other biological contaminants. Noise and vibration measurements from ventilation equipment confirm compliance with permissible levels defined in standards and acoustic design documentation.
Results are documented in a technical report that can serve as the basis for acceptance of the installation by the investor, facility manager or building supervision authority.
OIKOS has been conducting environmental and technical measurements since 1988. AB 934 covers physical, microbiological and acoustic testing. The laboratory is also a proficiency testing organiser (PT 010) — one of the few in the region — confirming the highest level of metrological competence.
Methods & Instruments
Methods
Measurement of supply and exhaust airflow; microbiological assessment of indoor air (bacterial and fungal colony counting).
Instruments
Thermal anemometer, balometer (capture hood), impactor-type microbiological air sampler (MAS, SAS), TSA and Sabouraud media.
Reference documents
PN-EN 12599 (ventilation acceptance); PN-EN ISO 16000-16, -17, -18 (indoor air microbiology).
FAQ
Ventilation Acceptance Questions
What is measured during ventilation acceptance testing?
Ventilation acceptance measurements include: air supply and extract flow rates at terminals, microclimate parameters (temperature, relative humidity), microbiological air purity (fungi, bacteria), noise levels emitted by ventilation equipment, and mechanical vibrations. The scope can be adapted to project or regulatory requirements.
Is ventilation acceptance testing required by law?
Yes. Building law regulations and the technical conditions ordinance require ventilation system acceptance before a building is approved for occupancy. In addition, PN-EN standards and OHS requirements specify the values the installation must achieve.
Can OIKOS test both air quality and the mechanical performance of the installation?
Yes. OIKOS holds AB 934 accreditation covering both air quality testing (microbiological parameters, microclimate) and physical installation measurements (airflow rates) as well as noise and vibration measurements. All tests are performed by a single organisation, simplifying the acceptance documentation.