For 90mm Petri dishes from China, you can choose between disposable plastic (polystyrene) or reusable borosilicate glass options. Most manufacturers offer high-quality sterile products suitable for microbiology and cell culture. 

Product Options

• Sterile Disposable Plastic Petri Dishes (90mm x 15mm): These are the most common laboratory choice.
  • Material: High-quality polystyrene (PS) for crystal-clear observation.
  • Sterilization: Typically sterilized by Ethylene Oxide (EO) or Gamma irradiation.
  • Variations: Available in single-room or multi-compartment designs (2, 3, or 4 rooms) for different experiments.
  • Features: Includes stacking rings for stability and vented lids to facilitate gas exchange.
• Reusable Borosilicate Glass Petri Dishes (90mm): Best for applications requiring high heat resistance.
  • Material: Borosilicate 3.3 glass, which is highly resistant to chemical corrosion and heat shock.
  • Specifications: Standard dimensions include a bottom diameter of ~90mm and a lid diameter of ~93mm.