laboratory diagnostic - testing and comparison - biological samples and assessment reports - quality control - internal - reference strains - qualitative - Neisseria gonorrhoea, equivalent collections 19424, NCTC 8375, vial x5 discs, keep at freezer, C.F.U between 10^6-10^9, freeze-dried, water-soluble, used in solid or liquid media, code L37RS1036-05, todylaboratories®