HardyDisk™ AST’s are impregnated paper disks used for Antimicrobial Susceptibility Testing (AST); also known as disk diffusion or Kirby-Bauer testing.

• Improved cartridge design helps to prevent jamming and tearing
• HardyDisk™ AST cartridges are packaged in an all new canister that features a desiccant built into the lid
• The last disk in each cartridge is clearly marked with dark lines around its edge to signify the need for refill

Each cartridge contains 50 disks that are spring loaded for smooth and reliable dispensing.