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CLSI offers free standards on method evaluation

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Sept. 8, 2015—The Clinical and Laboratory Standards Institute recently released new and revised standards on method evaluation. “A Framework for Using CLSI Documents to Evaluate Clinical Laboratory Measurement Procedures (EP19-Ed2)” uses the measurement procedure life cycle framework to aid users of CLSI evaluation protocols documents during establishment and implementation of measurement procedures developed by both commercial manufacturers and clinical laboratories. “Harmonization of Symbology and Equations (EP36-Ed1)” provides a standard symbology for use throughout CLSI documents.

EP19 is intended to serve as a reference guide for the use of CLSI documents in method evaluations, especially for developing or implementing new clinical laboratory tests. This redesigned document is not an evaluation protocol in the traditional sense. Rather, it is a report that references existing CLSI method evaluation documents, explaining which CLSI documents are useful for validating newly developed tests and which are useful when implementing new tests in the laboratory. EP19 is intended for use by clinical laboratory professionals, manufacturers, and governmental agencies.

EP36 provides a list of the most common statistical symbols and formulas to describe testing procedures and statistical analyses. The International Organization for Standardization documents as well as the terminology, symbols, and equations used in all of the CLSI evaluation protocols documents were considered in the development of this report. Symbols were grouped based on the evaluation approach for which they applied. The intended users of this document are CLSI volunteers and staff involved in developing standards and related products. It is intended that future CLSI documents will converge to a more standard symbolism and notation by taking into account the recommendations made in this document. These documents can be downloaded for free on the CLSI Shop.

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