Cracked petri dishes, unequal filling, or hemolysis in blood agars.
Quality Control for Commercially Prepared Microbiological Culture Media; Approved Standard, M22A3E, Published by CLSI, 2004-06-20 Go to product viewer dialog for this item. CLSI M22-A3-2004 (R2016) clsi m22a3 pdf
The standard, titled "Quality Control for Commercially Prepared Microbiological Culture Media; Approved Standard—Third Edition," provides a framework for both manufacturers and laboratory users to ensure the reliability of ready-to-use culture media. Published in 2004, it serves as a consensus-based guide for maintaining quality assurance in clinical microbiology. Key Purpose and Scope Cracked petri dishes, unequal filling, or hemolysis in
The acceptable failure rate cutoff for exempting media was increased from 0.3% to 0.5% . Published in 2004, it serves as a consensus-based
It explicitly defines the roles of the manufacturer, distributor, and end-user laboratory.
Includes new recommendations for QC of media used to recover difficult-to-grow pathogens. Laboratory Inspection Requirements