BD Vacutainer® Plus Plastic Serum Tubes have spray-coated silica and are usedfor serum determinations in chemistry. Samples processed in these tubes mayalso be used for routine blood donor screening, immunohematology and diagnostictesting of serum for infectious disease.* * The performance characteristics of these tubes have not been established for infectious disease testing in general;therefore, users must validate the use of these tubes for their specific assay-instrument/reagent system combinations and specimen storage conditions.