laboratory diagnostic - testing and comparison - biological samples and assessment reports - quality control - internal - reference strains - qualitative - Staphylococcus aureus (MRSA), equivalent collections NCTC 12493, WDCM 00212, recomended by EUCAST, vial x10 discs, keep in the freezer, freeze-dried, water-soluble, used in solid or liquid media; to be used within 9 months of opening, code L37RS1055-10, todylaboratories®