REFERENCE MATERIALS
Reference materials used in the program are prepared from pooled human serum according to the Clinical and Laboratory Standards Institute (CLSI) guideline C37-A (Preparation and Validation of Commutable Frozen Human Serum Pools as Secondary Reference Materials for Cholesterol Measurement Procedures; Approved Guideline) (5, 6). Portions of the sterile, filtered serum are dispensed into glass vials, which are sealed then frozen at
LSP reference materials are stored and maintained frozen at or below