Listeria monocytogenes serovar 4b WDCM 00021 Vitroids^™

Listeria monocytogenes serovar 4b WDCM 00021 Vitroids^™, 80-130 CFU mean value range, certified reference material, suitable for microbiology, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

Listeria monocytogenes serovar 4b WDCM 00021 Vitroids^™, 1,000-10,000 CFU mean value range, certified reference material, suitable for microbiology, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

Listeria monocytogenes serovar 4b WDCM 00021 Vitroids^™, 15-80 CFU mean value range, certified reference material, suitable for microbiology, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

Listeria monocytogenes serovar 4b WDCM 00021 Vitroids^™, 50,000-150,000 CFU mean value range, certified reference material, suitable for microbiology, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland