We are an accredited testing laboratory for air quality of ambient, indoor and workplace atmospheres by diffusive samplers and analysis with the help of spectrophotometry, gas and ion chromatography in accordance with Standard ISO/IEC 17025 based in Switzerland.
Our main objective is to manufacture effective diffusive samplers and to provide analytical data that is reliable, amenable to statistical evaluation, technically sound and defensible and is provided in a cost effective and efficient manner depending on our clients’ individual needs. Our emphases are:
- Long-term comparability of results; internal procedures and recording enables constistent data over time.
- Treacability; the analytical chain is based on certified reference materials and traceable to national bodies.
- Transparent evaluation of measuring uncertainties: the whole analytical chain is regularly verificated by using controlled test-atmopheres. Uncertainties are assessed according to GUM.
passam ag was founded as an ETH spin-off by Dr. Markus Hangartner and Andrea Hangartner. We operate as an independent company located in Männedorf, Switzerland.