We are taking our yearly inventory and are not currently shipping items. Shipping will resume by June 21, 2019.
We are taking our yearly inventory and are not currently shipping items. Shipping will resume by June 21, 2019.

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CLSI standards and guidelines are developed for use by the global laboratory community. Purchase clinical laboratory standards documents from our shop.

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Join CLSI as a member or volunteer and experience how CLSI brings greater accuracy, efficiency, and safety to the laboratories of members around the world.

 

 

 

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CLSI’s collaborative approach ensures balanced representation from the global laboratory community to yield unbiased consensus standards for global use.

 

 

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The Clinical & Laboratory Standards Institute (CLSI) is a not-for-profit membership organization dedicated to fostering excellence in laboratory medicine.

 

 

 

Access Our Free Resources

M100 and M60 Free

With these read-only web versions of M100 and M60, you can now quickly reference the most trusted AST and antifungal breakpoints from anywhere with an Internet connection. Available online as a convenient companion to our M100 document and M60 document.

Access M100 and M60 Free

 

 

 

 

M23-Ed5

This guideline discusses the necessary and recommended data for selecting appropriate breakpoints and quality control ranges for antimicrobial agents.

Download M23 

 

 

 

 

 

VET08 Free

Quickly reference the most trusted AST veterinary breakpoint tables as a convenient, complimentary supplement to the AST VET01 document.

 

Access VET08 Free

 

 

 

 

AST Rationale Documents

Providing the scientific reasons behind breakpoint decisions.

 

Access AST Rationale Documents

 

 

 

 

EP19-Ed2

This report uses the “measurement procedure lifecycle” framework to aid users of CLSI evaluation protocols documents during establishment and implementation of measurement procedures developed by both commercial manufacturers and clinical laboratories, ie, for laboratory-developed tests.

Download EP19 

 

 

 

 

EP36-Ed1

This report provides a standardized symbology for use throughout CLSI documents. Use of these standardized symbols is expected to be of great benefit to the CLSI readership, volunteers participating in CLSI committees, and the scientific community in general.

Download EP36