: The American Society for Microbiology (ASM) offers a free template for quality control that references M22-A3 protocols. Hardy Diagnostics Manual
Visual inspection; verify manufacturer's certificate of compliance.
Protocols for documenting batch numbers, expiry dates, delivery conditions, and physical inspection results (e.g., checking for turbidity, hemolysis, or moisture loss).
CLSI is a not-for-profit membership organization. The revenue generated from selling their standards funds the continuous research, consensus-building, and updating of these crucial medical guidelines.
If you still need the specific text for historical reference or specific compliance:
: Companies like Thermo Fisher Scientific provide guides that summarize the CLSI M22-A3 requirements for evaluating commercially supplied media.
Depending on regional jurisdiction, local regulatory bodies (such as the FDA, CDC, or regional European committees) provide equivalent open-access guidance documents covering culture media quality control.
The standard divides commercially prepared media into two primary categories based on historical performance data and failure rates:
While CLSI M22-A3 itself is not freely available directly from CLSI, the institute does provide several free or low‑cost resources.