Penicillin Discs, 1 unit, Pack of 50 (BN/EXP)

Antimicrobial Susceptibility Discs, Penicillin G – 1 Unit-Discs must be stored at -20°C if kept for long periods. Storage at 2-8°C is suitable for discs currently being used or to be used very soon. Discs should be returned to the refrigerator as quickly as possible after use.