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
The primary source for the M22 document and its updates.
Must ensure proper storage and handling during transit to maintain media integrity. clsi m22a3 pdf link
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:
Offers the CLSI M22-A3 PDF for purchase and provides a free preview of the table of contents and scope. Must document the receipt and physical condition of
The document clearly delineates the roles of different parties in the supply chain:
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
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
). Labs do not need to perform full in-house quality control (QC) on these media if the manufacturer provides documentation of compliance.