Retailers like Accuris also provide the document, often noting it as CLSI M22-A3 (R2018) to reflect its most recent reaffirmation. Implementation in Modern Labs
Certain media, particularly those for fastidious organisms or those with higher historical failure rates, remain "non-exempt" and require full QC testing by the user before being released for patient testing. Key Responsibilities clsi m22a3 pdf link
The primary source for the M22 document and its updates. Retailers like Accuris also provide the document, often
Must document the receipt and physical condition of every shipment (e.g., checking for cracked plates, hemolysis, or contamination) and perform required QC for non-exempt media. Accessing the PDF Must document the receipt and physical condition of
A cornerstone of this standard is the identification of "exempt" media. These are commercially prepared media with a proven history of high reliability and low failure rates (cutoff
Because CLSI standards are copyrighted materials, they are typically not available for free download as a full PDF. You can obtain official copies through the following platforms:
The document clearly delineates the roles of different parties in the supply chain: