This is a quantitative material in which each tablet contains a specific number of viable and culturable cells, obtained from the certification studies performed by a network of accredited laboratories according to EN ISO/IEC 17025 Standard.

The material is appropriate for method validations, and quantitative quality controls.

It has a shelf life of 6 months after the batch is released, and is provided in a dispenser of 5 tablets.

Currently available microorganisms are:

  • Aspergillus brasiliensis (niger)
  • Bacillus cereus
  • Bacillus subtilis
  • Candida albicans
  • Citrobacter freundii (1)
  • Clostridium bifermentans
  • Clostridium perfringens (2)
  • Clostridium sporogenes
  • Enterobacter aerogenes
  • Enterococcus faecalis
  • Enterococcus faecium (3)
  • Escherichia coli (1)
  • Klebsiella oxytoca
  • Klebsiella pneumoniae
  • Legionella anisa (cellulose filters)
  • Legionella anisa (polycarbonate/nylon filters)
  • Legionella pneumophila serogroup 1 (cellulose filters)
  • Legionella pneumophila serogroup 1 (polycarbonate/nylon filters)
  • Legionella pneumophila serogroup 5 (cellulose filters)
  • Legionella jordanis (cellulose filters)
  • Legionella jordanis (polycarbonate/nylon filters)
  • Listeria monocytogenes
  • Micrococcus luteus
  • Pseudomonas aeruginosa
  • Pseudomonas fluorescens
  • Salmonella enterica subsp. enterica serovar Abony
  • Salmonella enterica subsp. enterica serovar Typhimurium
  • Salmonella enterica subsp. enterica serovar Typhi
  • Staphylococcus aureus
  • Staphylococcus epidermidis

(1) Recommended use, other than for the microorganism itself, for aerobic bacteria, coliform bacteria (total coliforms) and fecal coliforms.

(2) Recommended use, other than for the microorganism itself, for sulphite-reducing clostridia.

(3) Recommended use, other than for the microorganism itself, for aerobic bacteria, fecal enterococcus and streptococcus.


You will find more information in our

of reference materials where you can consult the list of stocks in stock. However, if you do not find the strain you are looking for, you can contact us in Reference Materials orders.

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