Multi-Test Rings

These genuine MAST rings are antibiotic susceptibility test rings, for convenient, simultaneous testing using 8 antibiotic discs. Each of the 8 discs is impregnated with a different antibiotic, and the complete ring will fit conveniently on top of a 90 mm diameter agar plate (petri dish). Each disc is printed with an identification letter, to avoid confusion. The use of a unique hydrophobic barrier on the paper ring device ensures that the antibiotic impregnated tips function as individual antibiotic susceptibility discs, generating precise circular zones of inhibition for measurement of the zone diameter.

These MAST rings are made to our own specification and come with the following antibiotics:

AP10 AMPICILLIN 10 µg
C30 CHLORAMPHENICOL 30 µg
E15 ERYTHROMYCIN 15 µg
FOX30 CEFOXITIN 30 µg
PG1 PENICILLIN 1unit
S10 STREPTOMYCIN 10 µg
SF200 SULPHAFURAZOLE 200 µg
T30 TETRACYCLINE 30 µg

Storage: Rings require refrigeration at 2 - 8 degrees C.