EN ISO 11348-2 Water Quality, Inhibitory Effect of Water Samples on Vibrio Fischeri Light Emission, Part 2: Method Using Liquid Dried Bacteria

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EN ISO 11348-2 Water Quality, Inhibitory Effect of Water Samples on Vibrio Fischeri Light Emission, Part 2: Method Using Liquid Dried Bacteria

EUROLAB laboratory provides testing and compliance services within the scope of EN ISO 11348-2 standard. EN ISO 11348 describes three methods for determining the inhibition of luminescence emitted by the marine bacterium Vibrio fischeri (NRRL B‑11177). EN ISO 11348-2 specifies a method using liquid-dried bacteria.

EN ISO 11348-2 Water Quality, Inhibitory Effect of Water Samples on Vibrio Fischeri Light Emission, Part 2: Method Using Liquid Dried Bacteria

This method can be applied to:

  • Waste water;
  • Aqueous extracts and leachates;
  • Fresh water (surface water and groundwater);
  • Sea water and brackish water;
  • Sediment eluates (fresh water, brackish water and sea water);
  • pore water;
  • Single substances diluted in water.

Such varying sensitivity is due to differences in the composition of the media used in the preparation of freeze-dried or liquid-dried bacteria. These protective environments affect the bioavailability of toxic substances or the light emission of luminescent bacteria.

This means that the origin and type of preparation must be considered when interpreting the results. This can be difficult at times, as freeze-dried and liquid-dried bacteria are available from different suppliers. This may mean that the composition is not known in detail and therefore cannot be interpreted by the user.

EUROLAB assists manufacturers with EN ISO 11348-2 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.

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