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Â© 2026 Avion BioLabs Ltd Â· Company No. 17277509 Â· Registered in England and WalesResearch use only Â· Not for human or veterinary use Â· 18+Registered Office: 14E Docklands Business Centre, 10â€“16 Tiller Road, London E14 8PX, United Kingdom

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Glossary
Bioburden

Testing and quality

Bioburden

The number of viable microorganisms present before a sterilisation step or within a defined sample.

What it means

Bioburden testing and sterility testing answer different questions.

Research context

This definition is educational. The meaning and relevance of a term still depend on the method, product, batch record or study in which it appears.

Research use only

Products and educational content are supplied for laboratory, analytical and non-clinical research. Products are not medicines and are not for human consumption.