It offers a consistent protocol for initial product testing and verification of performance claims.
Hospital purchasing departments use M40-A2 to vet products. If a textile vendor cannot provide test results following this standard, their product is unlikely to be approved for operating rooms (ORs). clsi m40-a2 pdf
Visit the official CLSI website. As of the last publication, the M40-A2 standard was eventually superseded. You will likely find (the third edition) or a combination document. Purchasing the PDF directly (costing roughly $150–$250 USD) gives you the right to print a single copy. It offers a consistent protocol for initial product