Clsi M22a3 Pdf «CERTIFIED · EDITION»

Includes new recommendations for QC of media used to recover difficult-to-grow pathogens. Laboratory Inspection Requirements

Excessive moisture, dehydration, or frozen/melted agar. Contamination: Any visible growth or excessive bubbles. Purchasing and Access clsi m22a3 pdf

It applies to all commercial media regardless of packaging, such as plates, tubes, or bottles. Major Updates in the Third Edition (A3) Includes new recommendations for QC of media used

It explicitly defines the roles of the manufacturer, distributor, and end-user laboratory. such as plates

While certain media are exempt from full retesting, labs must still perform a for physical defects upon receipt of every shipment. The standard requires monitoring for:

The acceptable failure rate cutoff for exempting media was increased from 0.3% to 0.5% .