Fraunhofer Institute for Building Physics
Indoor air hygiene
Building Chemistry, Building Biology, Hygiene
| Measurement | Survey of airborne germs of indoor air by filtration in comparison to outdoor air |
| Standards | DIN ISO 16000-16, DIN ISO 16000-17, DIN ISO 16000-18, DIN ISO 16000-19, VDI 4300-10 |
| Measurement object | Indoor air in comparison to outdoor air |
Technical data
| Test volume | For short-term measurement typically 50 L for each filter |
| Test duration | Nine-fold measurement, approx. 30 min for each reading point |
| Processing | Preparation of the measured rooms according to VDI 4300-10 |
| Evaluation | According to UBA guide, counting of germs growing after 3, 7 and 10 days |
Special features
| Culture media | Use of microbiological culture media for mesophilic and xerotolerant fungi and airborne bacteria as a matter of routine |
| Flexibility | Use of gelatine filters allows also the application of a dilution series, apart from direct cultivation – depending on the expected germ load of the investigated air |
More information
Further tests in context:
- long term measurement of air germs, impaction or filtration
- microbial analysis of materials (e.g. floor insulation)
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