BioBall® is a small water-soluble ball containing a precise number of microorganisms delivering unprecedented accuracy for quantitative microbiological quality control. BioBall is easy to use and requires no preparation or pre-incubation and is an accredited reference material under ISO Guide 34 standards.

Applications include:
  • Media quality control
  • Positive controls for quantitative applications
  • Method validation
  • Accreditation compliance
  • Multi-laboratory standardization
BioBall is available at three standard levels:
  • BioBall SingleShot – designed for a single inoculation with unprecedented precision
  • BioBall MultiShot 550 – designed for 10 inoculations with low variance
  • BioBall High Dose – designed for a single precise inoculation at a higher CFU level


  • Quantitative Growth Promotion
  • Method Validation
  • Antimicrobial Activity
  • Positive Controls 

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Features and Benefits

 The advantages of BioBall over controls prepared by serial dilution:
  • Little or no preparation time
  • Easy to use
  • Precise known number of CFU
  • Consistent number of CFU batch to batch
The advantages of BioBall over other multi-dose products:
  • Far less preparation time and fewer steps
  • Greater precision
  • Consistent number of CFU batch to batch
  • Longer shelf life after rehydration – 8 hours
  • Reduced risk of failed quality control due to variability of the control 

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