You may find M22-A2 PDFs online for historical reference. However, (A3). Using an outdated version will result in non-conformities during audits.
store.clsi.org Price: Typically $150–$250 USD for a single-user PDF (varies by membership status). Format: Secure, watermarked PDF with printing restrictions for one user. Advantages: Immediate access, guaranteed latest version (active standard), and proof of ownership for auditors. clsi m22a3 pdf
The full title of this document is: "Liquid Chromatography in the Clinical Laboratory; Approved Guideline—Third Edition." You may find M22-A2 PDFs online for historical reference