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| Mikrobiological Assay |
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| Contamination of surfaces and processing media can cause severe hygienic problems, e.g., in the foods or medical technologies industries. Furthermore, entire industrial plants and assemblies can suffer down-times or damage through the build-up of bio-films (so called bio-fouling). This frequently results in secondary damage such as the blockage of sieves and pipes, or even direct damage of materials by microbiological activity (MIC).
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Test methods
- Proof and quantification of microorganisms in aqueous media by
- Culture techniques to determine to number of germs capable of forming colonies (only active, reproductive bacteria can be assayed like this)
- Direct microscopy, to determine the total number of microorganisms, irrespective of their physiological condition.
- Examination of materials surfaces for contamination
- Determination of the germ count in gaseous media
Areas of application
- Determination of the quality of water in technical installations (e.g., in cooling water or drinking water circuits)
- Qualify contamination on surfaces (implants, conveyor belts, and filling machines for food processing, clean rooms etc.)
- Inspection of air and water systems for contamination by infectious microorganisms (e.g., legionella)
- Analysis of microbiological damage of materials in contact with water - heat exchangers, components in hydraulic power stations etc..
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Mikrobiological examination under
the Epifluorescence microscope
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Corrosion damage by
microbiological activity (MIC) in
CuNi heat exhange piping |
Schadensanalyse
- Beurteilung der Rolle von Bakterien bei Korrosionsschäden
- Beratung zur Bekämpfung von mikrobiologisch bedingten Problemen (Schadensverhinderung)
Spezialitäten
- Visualisierung von Mikroorganismen oder Biofilmen durch Epifluoreszenz-mikroskopie an Filterproben mit farblicher Markierung der Bakterien (Methode DEFT)
- Beurteilung von mikrobiell verursachten Korrosionsschäden
Failure Analysis
- Determination of the role of bacteria in corrosion damage
- Consultancy for remedying and preventing microbiological problems (failure prevention)
Specialisation
- Visualisation of microorganisms or bio-films by epifluorescence microscopy on samples of colour-tagged bacteria (the DEFT method)
- Analysis of corrosion failure induced by microbiological activity
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Microscopic assay of micro-organisms in a water sample by DEFT |
Delivery
Depending on extent of task
SWA - your competent partner in case of damage, failure analysis and prevention, materials, material analysis, corrosion protection, corrosion testing, water analyses, microbiological assessement, polymers and polymer characterization, metallography and asbestos analysis
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