Specifications

Below are standard specifications for plastic petri dishes. Items marked Customizable are available upon request.

Diameter	Material	Height (mm)	Growth Area (cm²)	Recommended Volume (mL)	Surface	Sterile
35mm	PS	12.6	8.5	2-3.5	Untreated/TC/Super	Optional
60mm	PS	17.3	21.2	4-7	Untreated/TC/Super	Optional
70mm	PS	15.5	36.3	6-11	Untreated/TC/Super	Optional
90mm	PS	16.9	55.0	10-18	Untreated/TC/Super	Optional
100mm	PS	22.6	60.8	12-20	Untreated/TC/Super	Optional
150mm	PS	22.7	143.0	25-50	Untreated/TC/Super	Optional

Dimensions are typical values and may vary slightly by batch. Surface options: untreated, TC-treated, super-hydrophilic.

📌 Customization Notes:
• Custom sizes available (35mm~150mm)
• Surface treatment options: untreated / TC-treated / super-hydrophilic
• Sterilization options: gamma / non-sterile
• Vented / non-vented options available
• 2-section / 3-section / 4-section dishes available

Product Description

I. Overview

The plastic petri dish is an essential consumable for microbial culture, cell culture, and plant tissue culture in the laboratory. Manufactured from high-clarity polystyrene (PS) through precision injection molding, featuring a smooth, transparent surface for easy microscopic observation of colonies and cells.

Available in 35mm, 60mm, 70mm, 90mm, 100mm, and 150mm sizes. Sterilized by gamma irradiation to ensure sterility and pyrogen-free quality. The lid features venting ribs to maintain sterility while allowing gas exchange. The raised outer edge of the lid ensures stable stacking.

Available in untreated, TC-treated, and super-hydrophilic treated surfaces. Untreated surfaces are suitable for suspension cell culture; TC-treated surfaces have enhanced hydrophilicity for adhesion and spreading of common cell lines; super-hydrophilic treated surfaces are suitable for difficult-to-culture cells. Suitable for microbial culture, cell culture, plant tissue culture, and more.

🔬 Product Advantages:
High-Clarity PS — Easy microscopic observation of colonies and cells
Multiple Surfaces — Untreated / TC-treated / Super-hydrophilic for different culture needs
Venting Rib Design — Maintains sterility while allowing gas exchange
Stackable Design — Raised outer edge for stable stacking
DNase/RNase-free — Pyrogen-free, non-cytotoxic

II. Core Performance Parameters

Material: High-clarity polystyrene (PS)
Process: Precision injection molding
Size Range: 35mm / 60mm / 70mm / 90mm / 100mm / 150mm
Sterilization: Gamma irradiated
Surface Treatment: Untreated / TC-treated / Super-hydrophilic
Venting: Venting ribs on lid for gas exchange
Stacking: Raised outer edge for stable stacking
Quality: DNase/RNase-free, pyrogen-free, non-cytotoxic

III. Material & Workmanship

Manufactured from medical-grade polystyrene (PS) resin in a cleanroom environment, ensuring high clarity and dimensional accuracy across all sizes. The lid and base fit securely to prevent contamination.

The raised outer edge of the lid ensures stable stacking. Venting ribs on the lid maintain sterility while allowing gas exchange. The wave-like easy-grip rim design facilitates safe handling. Bottom positioning marks help identify cell culture areas.

Every batch undergoes rigorous dimensional and visual inspection to ensure consistent quality.

Applications

Typical Applications

Microbial Culture

Isolation, purification, and culture of bacteria, fungi, yeast

Cell Culture

Routine culture and passaging of adherent and suspension cells

Plant Tissue Culture

Culture of plant cells, tissues, and organs

Drug Screening

Cell-based assays in drug screening

Environmental Monitoring

Microbial testing of water, food, cosmetics

Teaching Labs

Microbiology and cell biology education

Industries

Teaching Labs Microbiology and cell biology education
Pharmaceutical QC labs, R&D labs
Food Industry Food microbiology testing, quality control
Environmental Monitoring Water quality analysis, microbial testing
Research Institutions Cell biology and microbiology laboratories

Selection Guide

I. By Surface Treatment

Culture Requirement	Recommended Surface	Cell/Application Type
Suspension cells, microbial culture	Untreated	Bacteria, yeast, suspension cell lines
Routine adherent cell culture	TC-Treated	HeLa, 293, MCF-7 and common cell lines
Difficult cells, primary cells	Super-hydrophilic	Primary cells, transfected lines, serum-free culture

II. By Size

35mm: Small-scale culture, precious cell lines, standards
60mm / 70mm: Routine microbial culture, small-scale cell culture
90mm: Routine bacterial culture, cell culture (most common)
100mm: Larger-scale cell culture
150mm: Large-scale cell culture, bulk sample culture

💡 Selection Tip: 90mm TC-treated petri dish is the most commonly used size.
For suspension cells or microbial culture, choose untreated surface.
For routine adherent cell culture, choose TC-treated surface.
For difficult cells or primary cells, choose super-hydrophilic surface.

Operation & Maintenance

User Guide

Below are standard operating guidelines for plastic petri dishes. Proper use ensures experimental safety and culture results.

I. Pre-use Preparation

Inspect for cracks, deformation, and packaging integrity
Check the sterilization expiry date (sterile version)
Perform all operations in a laminar flow hood or biosafety cabinet
Prepare culture media, inoculation tools, and other materials

II. Culture Operation

Open the petri dish packaging in the laminar flow hood
Pour prepared culture medium into the dish and spread evenly
After the medium solidifies, proceed with inoculation
Cover with the lid and label the outer edge with sample information
Place the petri dish in the incubator at the required temperature and gas conditions
Monitor colony or cell growth regularly during the incubation period

III. Disposal

Dispose of used petri dishes in biohazard waste containers
Petri dishes used for microbial culture should be autoclaved before disposal
Petri dishes used for cell culture should be disposed according to biosafety regulations

💡 From a Seasoned Lab Technician: "Sterile technique is the top priority" — All operations must be performed in a laminar flow hood or biosafety cabinet.
"Medium thickness should be optimal" — Medium depth should generally be 3-5mm — too thick impedes gas exchange.
"Minimize lid opening" — Frequent lid opening increases contamination risk — observe through the lid whenever possible.
"Label clearly" — Mark the outer edge of the lid with sample name, date, culture conditions, etc.

Care & Notes

Show care & notes

⚠️ Safety & Compliance Checklist

Aseptic Technique

All operations should be performed in a laminar flow hood or biosafety cabinet

Personal Protection

Wear lab coat, gloves, and safety goggles when necessary

Sterilization

Used petri dishes should be autoclaved before disposal

Biosafety

Follow appropriate biosafety guidelines when handling biohazardous samples

Plastic Petri Dish

Specifications

Product Description

I. Overview

II. Core Performance Parameters

III. Material & Workmanship

Applications

Microbial Culture

Cell Culture

Plant Tissue Culture

Drug Screening

Environmental Monitoring

Teaching Labs

Selection Guide

I. By Surface Treatment

II. By Size

User Guide

I. Pre-use Preparation

II. Culture Operation

III. Disposal

Care & Notes

Aseptic Technique

Personal Protection

Sterilization

Biosafety

Need Plastic Petri Dishes?

Plastic Petri Dish

Specifications

Product Description

I. Overview

II. Core Performance Parameters

III. Material & Workmanship

Applications

Microbial Culture

Cell Culture

Plant Tissue Culture

Drug Screening

Environmental Monitoring

Teaching Labs

Selection Guide

I. By Surface Treatment

II. By Size

User Guide

I. Pre-use Preparation

II. Culture Operation

III. Disposal

Care & Notes

Aseptic Technique

Personal Protection

Sterilization

Biosafety

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