Pdf — Clsi M22a3
The acceptable failure rate cutoff for exempting media was increased from 0.3% to 0.5% .
The full document is available in electronic PDF format from various official standards retailers. Go to product viewer dialog for this item. CLSI M22-A3 (R2018)
An additional 27 media were added to the "exempt" list, meaning labs can bypass routine QC organism testing for these items. clsi m22a3 pdf
M22-A3 introduced several significant changes from the previous M22-A2 version based on extensive surveys by the :
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) The acceptable failure rate cutoff for exempting media
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 blood agars. CLSI M22-A3 (R2018) An additional 27 media were
Excessive moisture, dehydration, or frozen/melted agar. Contamination: Any visible growth or excessive bubbles. Purchasing and Access
Focus on visual inspection and documentation of media upon receipt rather than full organism-based retesting for "exempt" media.
It applies to all commercial media regardless of packaging, such as plates, tubes, or bottles. Major Updates in the Third Edition (A3)