Bacillus spizizenii WDCM 00003 Vitroids™
SIAL/VT000037 - 50,000-150,000 CFU mean value range, certified reference material, suitable for microbiology
Synonym: Bacillus subtilis subsp. spizizenii WDCM 00003 Vitroids™
Product Type: Chemical
application(s) | microbiology |
CofA | certificate is enclosed in each package |
grade | certified reference material |
Quality Level | 300 ![]() |
shelf life | limited shelf life, expiry date on the label |
storage temp. | −20°C |
Application: | • Daily quality control • Performance testing of media acc. ISO 11133 • Validation of new methods • Materials for proficiency testing or ring trials • Method development • Staff training • Starter cultures |
Features and Benefits: | • Defined CFU range and low standard deviation • Fast, reliable and easy to use |
General description: | These Vitroids™ discs contain Bacillus subtilis subsp. spizizenii WDCM 00003 viable microorganisms (50,000-150,000 CFU) in a certified quantity (generally accredited according to ISO/IEC 17025), produced under reproducible conditions compliant with ISO 17034:2016 using authenticated strains from CECT®. The discs consist of pure cultures of bacteria in a solid matrix, stable for at least one year and are in a viable state with a shelf life of 1-3 years. Each batch is provided with a comprehensive certificate of analysis that specifies the mean number of colony-forming units (CFU), an expanded uncertainty about the mean, details about the method used to determine the product data and the number of passages (subcultures) from the original strain. Vitroids™ are derived from a traceable culture obtained freeze-dried from CECT®. |
General description: | This certified reference material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis. Download your certificate at: http://www.sigma-aldrich. Please specify if you require a single batch - in the remark field when ordering (only for orders with more than 15 packs) |
Legal Information: | ATCC is a registered trademark of American Type Culture Collection |
Legal Information: | CECT is a registered trademark of Universitat de Valencia |
Legal Information: | Derived from CECT® strains |
Legal Information: | Vitroids is a trademark of Sigma-Aldrich Co. LLC |
Other Notes: | ATCC® 6633, NCTC 10400, DSM 347 Origin Strain No. CECT® 356 |
WGK Germany | WGK 3 |
Storage Temp. | −20°C |