Antibiotic Sensitivity Discs – Penicillin 2.0 Units (Pack of 50)

These high‑quality Penicillin Sensitivity Discs (2.0 units, Pack of 50) are designed specifically for school and college microbiology investigations. Intended for safe laboratory use, these discs allow students to test bacterial sensitivity to Penicillin in controlled environments. NOT for human or animal consumption.

With no UN hazard classification (UN Number: NR) and no CAS number required, these sterile discs are simple to use and safe when standard aseptic procedures are followed. They must be stored in a refrigerator between 2°C and 8°C to maintain their effectiveness.

Key Features

• Sterile Penicillin sensitivity discs
• Pack of 50, suitable for repeated classroom use
• Each disc contains 2.0 units of Penicillin
• Must be stored at 2–8°C (refrigerated)
• UN Number: NR (Not Regulated)
• CAS Number: N/A
• Not for human or animal consumption
• Supplied exclusively to educational establishments

How Penicillin Sensitivity Discs Can Be Used in School Science Lessons

These discs are ideal for a range of microbiology activities across KS3, GCSE, and A‑Level biology. They can be used for:

• Antibiotic sensitivity testing on safe cultured microorganisms
• Measuring zones of inhibition to compare bacterial growth
• Aseptic technique training for students
• Investigating antibiotic action and bacterial response
• Teaching micro