Opacity Tubes
Opacity Tubes for Standardisation of Bacterial Vaccines, glass.
Opacity Tubes for Standardisation of Bacterial Vaccines with directions
Opacity Tubes for Standardisation of Bacterial Vaccines, glass.
Paper instructions for using opacity tubes for standardising bacterial vaccines.
Case for opacity tubes used for standardisation of bacterial vaccines. Red with cut-outs inside for the tubes, and a note in the inside lid.