As of 2025, M22-A3 remains the active standard. However, clinical chromatography is evolving:
M22-A3 emphasizes that no system is 100% accurate for all NFB species. clsi m22a3 pdf
Your lab’s standard operating procedures for media QC must directly reference CLSI M22-A3, including the edition year (e.g., “M22-A3, Section 5.2”). Write step-by-step instructions for technologists to follow. As of 2025, M22-A3 remains the active standard
Published by the , this document provides specific protocols for the quality control (QC) of commercially manufactured microbiological culture media. Its primary goal is to ensure that the media used in laboratories is capable of supporting the growth of target pathogens while remaining sterile and chemically stable. The "Exempt" vs. "Non-Exempt" Classification As of 2025