Clsi M22a3 Pdf |work| 〈2026 Release〉

CLSI M22-A3 document, titled "Quality Control for Commercially Prepared Microbiological Culture Media; Approved Standard—Third Edition,"

Testing Protocols: Guidelines for preparing inoculum (such as matching a 0.5 McFarland standard) and isolation streaking methods for quality verification.  Key Specifications  clsi m22a3 pdf

Organism- or drug-specific considerations CLSI M22-A3 document

Archived Status: M22-A3 is currently considered an archived standard by CLSI. Many laboratories now transition to using an Individualized Quality Control Plan (IQCP) as outlined by CMS to manage their media QC. Approved Standard—Third Edition

The standard clarifies the roles of different parties in the supply chain to maintain high quality: Manufacturers