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    Bioburden

    Quantification of viable microorganisms on or in a product before sterilization.

    Reviewed by Christian Espinosa, Founder, Blue Goat CyberLast reviewed May 5, 2026

    Definition

    Bioburden monitoring (per ISO 11737-1) supports sterilization dose-setting, validation, and routine control. Excursions trigger investigation and may invalidate sterilization assumptions.

    What this means in practice

    Bioburden trending is a leading indicator of cleanroom and component-handling issues - ignored excursions often surface as 483s.

    Primary references

    3 sources
    Link health: 3 verified· last checked 2026-05-09
    ISO·2IMDRF/GHTF·1
    1. 1
      ISO 11737-1
      Verified
      ISOiso.org
    2. 2
      ISO 13485 Standard Page
      Verified
      ISOiso.org
    3. 3
      GHTF/IMDRF Process Validation Guidance
      Verified
      IMDRF/GHTFimdrf.org

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