International Organization for Standardization (ISO)
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ISO 14461-1:2005
Scope
This part of ISO 14461IDF 169 describes a procedure for testing the performance of the colony-count
technique within a laboratory by establishing the within-laboratory variability of its technique and identifying
those steps that are associated with excessive variability.
The procedure is also suitable for checking the proper observance of Good Laboratory Practice (GLP), which
may be a prerequisite for participation in interlaboratory tests of colony-count methods.
ISO 14461-1:2005 Referenced Document
ISO 4788 Laboratory glassware - Graduated measuring cylinders
ISO 648:1977 Laboratory glassware; One-mark pipettes
ISO 7218 Microbiology of food and animal feeding stuffs — General requirements and guidance for microbiological examinations AMENDMENT 1*, 2007-08-15 Update
ISO 835-4 Laboratory glassware; Graduated pipettes; Part 4 : Blow-out pipettes
ISO 14461-1:2005 history
2005ISO 14461-1:2005 Milk and milk products - Quality control in microbiological laboratories - Part 1: Analyst performance assessment for colony counts