Thermo Scientific™ Oxoid™ Norfloxacin NOR Antimicrobial Susceptibility discs

Thermo Scientific™ Oxoid™ Norfloxacin Antimicrobial Susceptibility Discs are high-quality, pre-impregnated paper discs designed for manual antimicrobial susceptibility testing (AST) using the disc diffusion method. These discs are essential for determining the sensitivity of bacterial isolates to norfloxacin, a fluoroquinolone antibiotic widely used against Gram-negative and some Gram-positive pathogens.

Each disc is precisely dosed with either 3 µg, 5 µg, or 10 µg of norfloxacin and housed in a shatterproof spring-loaded cartridge for easy and sterile application. Cartridges are individually sealed with a desiccant to maintain a moisture level below 2%, ensuring consistent long-term performance.

Validated for use in clinical microbiology laboratories, these discs comply with global standards including CLSI, EUCAST, and DIN, providing accurate zone of inhibition measurements and supporting routine pathogen resistance monitoring and therapeutic decision-making.

Key Features

• Available in 3 µg, 5 µg, and 10 µg concentrations
• Compatible with standardized Kirby-Bauer disc diffusion method
• Enables classification of isolates as susceptible, intermediate, or resistant
• Supplied in sealed cartridges with desiccant for long-term stability (<2% moisture)
• Easy-to-read labeling and end-of-cartridge indicators for inventory control
• Detects additional visual indicators like resistant mutants, beta-lactamase activity, and antagonism or synergy between agents
• Conforms to CLSI, EUCAST, and DIN guidelines
• Intended for in vitro diagnostic use only

Applications

• Detection of resistance to norfloxacin in clinical and veterinary isolates
• AST of Gram-negative pathogens including E. coli, P. aeruginosa, Salmonella, Shigella, and Neisseria gonorrhoeae
• Monitoring of fluoroquinolone resistance trends
• Selection of empiric treatment for urinary tract infections and enteric diseases
• Public health surveillance and infection control programs

Packaging Format

Specifications

Oxoid™ Norfloxacin Antimicrobial Susceptibility Discs offer a precise and standardized approach to assessing microbial resistance to norfloxacin. Designed for use in routine clinical testing and surveillance programs, these discs support reliable zone interpretation and help guide effective antimicrobial therapy.