CLSI has designated M22-A3 as an . It is no longer being reviewed through the CLSI Consensus Document Development Process. However, the institute maintains that the document is technically valid (as of October 2022) and, because of its value to the laboratory community, it is being retained in CLSI's library.
Published originally in 2004, it superseded the M22-A2 standard. Although it is now considered an archived document, it remains technically valid and is highly valued for its clear, concise instructions on QC practices. Key Objectives of the M22-A3 Standard clsi m22a3 pdf link
Historically, laboratories had to perform extensive quality control testing on every single batch of media they received from manufacturers. This was time-consuming and costly. CLSI has designated M22-A3 as an
If your laboratory is affiliated with a university, major medical center, or research hospital, check with your institutional medical library. Many academic libraries maintain active subscriptions to CLSI databases, allowing personnel to download the official PDF for internal use at no additional cost. Conclusion Published originally in 2004, it superseded the M22-A2
The official PDF download is available for purchase from CLSI and its authorized resellers. Below is a table of official sources where you can legally purchase and download the PDF, with direct links.
This article provides an in-depth look at the , why it is critical, how it helps laboratories save resources, and where to find the document. What is CLSI M22-A3?