laboratory diagnostic - testing and comparison - biological samples and assessment reports - quality control - internal - reference strains - qualitative - Listeria ivanovii subsp. Ivanovii, equivalent collections 19119, NCTC 11007, WDCM 00018, vial x10 discs, keep in the freezer, C.F.U between 10^6-10^9, freeze-dried, water-soluble, used in solid or liquid media, code L37RS1082-10, todylaboratories®, expires 2025.09