For selective isolation of pathogenic enteric gram negative bacteria. Store at 2 to 8 °C.

• Optically clear polystyrene for distortion free viewing
• Heavy-Duty - Reduces breakage during shipping
• Polystyrene Petri plates feature raised rings for stacking ability and prevents sliding
• Packaged in sleeves of 10 plates in a "breathable" bag that prevents buildup of condensation and excess moisture

XLD Agar, USP is recommended for use as a selective and differential medium for the isolation of gram-negative enteric pathogens. The U.S. Pharmacopeia National Formulary (USP) describes the use of XLD Agar for growth promotion and indication of Salmonella in the microbiological examination of nonsterile products.