All microbiological reference materials are tested and guaranteed for homogeneity and stability. They are accompanied with a certificate, which provides all the relevant information (i.e. quantity value, uncertainty, instructions). After being defrosted and stored (at 0°C to 4°C), Biosisto her reference materials are ready to use for a full day. All microbiological reference materials are stored at -80 °C and packed per 10 vials of 1.5 mL.  Your order will be delivered within 5 working days and shipped on dry ice. Most of Biosisto her microbiological reference materials have a two-year shelf life from the date of production (stored at -80°C). The expected range is between 100 – 15.000 cfu/mL, depending on the product and method used.

Biosisto delivers single-strain, multi-strain, matrix and custom-made microbiological reference materials. You can find the Material Safety Data Sheets (MSDS) and Digital Certificates under Support or contact us at info@biosisto.com.

Biosisto can develop and produce single or multi-strains based upon on customer requirements. If you need a specific reference material, that is not yet included in the product list below, please do not hesitate to contact Biosisto (by e-mail or phone). We will contact you as soon as possible for further details.

Single-strain (certified) reference materials

Article code Article description Matrix Cell / Spore Value Range
(cfu/ml)
RM-BC veg Bacillus cereus
(vegetative cells)
Milk Cell
Spore
1.000 – 15.000
1.000 – 15.000
RM-BSUBT Bacillus subtilis Milk Cell
Spore
1.000 – 30.000
1.000 – 30.000
RM-CFREU Citrobacter freundii Milk Cell 1.000 – 15.000
RM-CJ Campylobacter jejuni Broth Cell 100 – 1.000
RM-CP veg Clostridium perfringens
(vegetative cells)
Milk Cell
Spore
10.000 – 100.000
1.000 – 15.000
RM-CP veg.p Clostridium perfringens
(vegetative cells)
Broth Cell
Spore
10.000 – 100.000
1.000 – 15.000
RM-EFAEC Enterococcus faecium Broth Cell 1.000 – 15.000
RM-EC Escherichia coli (WDCM 00013) Milk Cell 1.000 – 15.000
RM-ECO.00012MM Escherichia coli (WDCM 00012) Milk Cell 1.000 – 15.000
RM-ECO.00012BH Escherichia coli (WDCM 00012) Broth Cell > 100.000
RM-EC O.157 Escherichia coli O.157 (non-VTEC) Milk Cell 1.000 – 15.000
RM-GSTEA Geobacillus stearothermophilus Milk Cell
Spore
10.000 – 100.000
1.000 – 15.000
RM-LPNEU1 Legionella pneumophila type 1 Broth Cell 1.000 – 25.000
RM-PA Pseudomonas aeruginosa Milk Cell 1000 – 15000
RM-SABAE Salmonella Abaetetuba Milk Cell 100 – 1.000
RM-ST Salmonella Typhimurium Milk Cell 100 – 1.000
RM-STEC Escherichia coli O.157:H7 (STEC) Broth Cell 1.000 – 15.000
RM-STHER Streptococcus thermophilus Milk Cell 1.000 – 1.000.000
RM-STRAN Salmonella Tranoroa Broth Cell 100 – 1.000
RM-VPARA Vibrio parahaemolyticus Broth Cell 100 – 1.000
RM-WS Wallemia sebi (xerophile mould) Broth Mould 100 – 1.500
RM-YL Yarrowia lipolytica Milk Yeast 1.000 – 15.000
CRM-BC Bacillus cereus Milk Spore 1.000 – 15.000
CRM-CP Clostridium perfringens (spore) Milk Spore 1.000 – 15.000
CRM-CS Cronobacter sakazakii Milk Cell 1.000 – 15.000
CRM-EF Enterococcus faecalis Milk Cell 1.000 – 15.000
CRM-LM Listeria monocytogenes Milk Cell 1.000 – 15.000
CRM-LP Lactobacillus plantarum Milk Cell 1.000 – 15.000
CRM-PAU Penicillium aurantiogriseum Milk Mould 1.000 – 15.000
CRM-PF Pseudomonas fluorescens Milk Cell 1.000 – 15.000
CRM-SA Staphylococcus aureus Milk Cell 1.000 – 15.000
CRM-SAG Salmonella Agona (lactose positive) Milk Cell 100 – 1.000
CRM-SE Salmonella Enteritidis Milk Cell 100 – 1.000

* RM = material sufficient homogeneous and stable with respect to one or more specified properties.

** CRM = accredited reference material, characterized by a metrologically valid procedure for one or more specified properties.

Multi-strain  reference materials

Article code Article description Matrix Cell / Spore Value Range
(cfu/ml)
RM-AQUA Colony Count Water
Escherichia coli
Enterococcus faecalis
Pseudomonas fluorescens 
Broth Cell
Cell
Cell
1.000 – 15.000
1.000 – 15.000
1.000 – 15.000
RM-BLES Colony Count Food
Bacillus cereus
Escherichia coli
Lactobacillus plantarum
Staphylococcus aureus
Milk Cell
Cell
Cell
Cell
RM-CC Colony Count
Escherichia coli
Staphylococcus aureus
Bacillus subtilis
Broth Cell
Cell
Cell
1.000 – 15.000
1.000 – 15.000
1.000 – 15.000
RM-PAUYL Penicillium aurantiogriseum
Yarrowia lipolytica
Milk Mould
Yeast
1.000 – 15.000
1.000 – 15.000