Antibiotic Sensitivity Discs – Penicillin 10 Units (Pack of 50)

These high‑quality Penicillin Sensitivity Discs (10 units, Pack of 50) are designed for use in school and college microbiology laboratories to demonstrate bacterial sensitivity to Penicillin. These sterile discs provide clear and reliable zones of inhibition during agar diffusion tests and are intended strictly for educational use. NOT for human or animal consumption.

With no UN classification (UN Number: NR) and no CAS number required, these discs are easy to handle when standard aseptic microbiology procedures are followed. To maintain activity and accuracy, they must be stored in a refrigerator between 2°C and 8°C.

Key Features

• Sterile Penicillin antibiotic sensitivity discs
• Pack of 50 for repeated classroom use
• Each disc contains 10 units of Penicillin
• Refrigeration required: store at 2–8°C
• 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 microbiology investigations across KS3, GCSE, and A‑Level biology. They can be used for:

• Antibiotic sensitivity testing with safe cultured microorganisms
• Measuring zones of inhibition to assess antibacterial activity
• Aseptic technique training for students
• Comparing antibiotic effectiveness across different strengths
• Teaching antibiotic action and microbial resistance concepts

Reliable, easy to use, and highly effective in demonstrating microbiological principles, these Penicillin 10‑unit discs help students develop essential scientific skills and understanding.