Combi 509-OD285-1PK is 8-in-one ready antibiotic combination multi disc, referred to as an octo disc under HiMedia catalogue. It is designed for testing antimicrobial susceptibility of bacteria for 8 different antibiotics at a time. Each pack of OD285-1PK contains 10 flat circular rings; each ring containing 8 equidistance arms at the periphery. At the end of the each arm, there is one antibiotic disc with 6mm diameter. Each disc is saturated with a different antibiotic and the concentration and symbol of the respective antibiotic printed on it. Each disc is at least 24mm apart from the other disc. Combi 509-OD285-1PK octo discs are ideal to test Gram Negative bacteria. OD285-1PK disc can fit on 120 mm media plates. Generally used on Mueller Hinton Agar plates.

Composition of Combi 509-OD285-1PK:

Tobramycin (TOB) 10g

Imipenem (IPM) 10g

Augmentin (AMC) 30g

Cephoxitin (CX) 30g

Piperacillin/Tazobactam (PIT) 100/10g

Cefoperazone (CPZ) 75g

Nalidixic acid (NA) 30g

Norfloxacin (NX) 10g

Storage and shelf life: It is advised to store the discs always at -200C after opening. The disc loses its stability at higher temperature (450C).