Product Overview
This TSA Contact Plate is a ready-to-use environmental monitoring tool designed for the enumeration of viable microorganisms on surfaces, equipment, personnel, and packaging materials. The medium is Soybean-Casein Digest Agar (also known as Tryptic Soy Agar, TSA), a non-selective, general-purpose medium that supports the growth of a broad range of bacteria, yeasts, and molds.
Each plate is manufactured in accordance with United States Pharmacopeia (USP), European Pharmacopoeia (EP), Chinese Pharmacopoeia (CP), and GB16294 standards, ensuring consistent performance and regulatory compliance for pharmaceutical, biotechnology, and healthcare applications.
The 55mm format is optimized for direct surface contact sampling, and the triple vacuum packaging allows safe transfer into cleanrooms and isolators without introducing contamination.
Intended Use
- Surface microbial monitoring in cleanrooms (ISO Class 5–8 / Grade A–D).
- Environmental monitoring of equipment, walls, floors, and personnel.
- Bioburden checks on packaging materials.
- Routine hygiene monitoring in pharmaceutical, cosmetic, and food facilities.
Composition (per Liter)
- Pancreatic Digest of Casein: 15.0 g
- Papain Digest of Soybean Meal: 5.0 g
- Sodium Chloride: 5.0 g
- Agar: 15.0 g
- Distilled Water: 1,000 mL
- Final pH: 7.3 ± 0.2 at 25°C
Performance Characteristics
- Appearance: Light yellow, convex, smooth surface, free from cracks, visible impurities, and bubbles.
- Physicochemical: pH compliant; gel strength 500–650 g/cm².
- Sterility: No growth after incubation at 20–25°C for 3 days and 30–35°C for 2 days; no significant medium dehydration.
- Water Retention: No visible shrinkage after 4 hours of open exposure in moving air.
- Growth Promotion: Validated for robust growth with typical colony size and morphology for Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis, Staphylococcus aureus, Candida albicans, and Aspergillus niger.
Packaging and Storage
- Format: 55mm × 10 plates per pack.
- Fill Volume: 15–20 mL per plate.
- Packaging: Three-layer vacuum packaging for cleanroom entry.
- Shelf Life: 180 days from date of manufacture.
- Storage: Store at 2–25°C, protected from light. Do not freeze
