laboratory diagnostic - testing and comparison - biological samples and assessment reports - quality control - internal - reference strains - qualitative - Salmonella typhimurium, equivalent collections 14028, NCTC 12023, DSM 19587, WDCM 00031, vial x10 discs, keep at freezer, C.F.U between 10^6-10^9, freeze-dried, water-soluble, used in solid or liquid media, code L37RS1049-10, todylaboratories®