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- Petri Dishes
- Petri Dishes
- Petri Dishes
Description
Key Features
Specifications
Storage & Handling
FAQs
Product Description
Standard polystyrene petri dishes for bacteriological laboratory applications. Available in 35, 60, 90, 100, and 150 mm formats, these dishes are manufactured from high-grade polystyrene with exceptional optical clarity for direct microscopic analysis and heat resistance for use with hot agar pours without deformation.
Petri dishes are among the most important consumables in bacteriological laboratories — used for culture isolation, colony counting, microbial identification, and a wide range of microbiological assays. The external grip on the lid and base allows secure, stable handling while wearing standard lab gloves, reducing contamination risk during transfer and incubation.
Supplied non-sterile and sleeve-packed for high-throughput laboratory use. UV sterilization or gamma irradiation may be used for sterilization prior to use if required.
Key Features & Benefits
- Five size formats — 35, 60, 90, 100, and 150 mm to match culture scale from small-volume isolations to large-surface colony spreading
- Exceptional optical clarity — high-grade polystyrene construction for clear, distortion-free microscopic observation of colonies and culture morphology
- Heat resistant — withstands hot agar pours without deformation or warping for reliable culture preparation
- External grip design — textured external grip on lid and base for secure, stable handling with standard lab gloves
- Solid lid — provides a secure, stable closure during incubation and storage
- Sleeve-packed — convenient sleeve format for bench access and efficient storage
- Non-sterile — supplied non-sterile; sterilize by UV or gamma irradiation prior to use if required
- High-grade polystyrene resin — consistent quality for reproducible microbiological results
- DNase/RNase, Human DNA, ATP, and Pyrogen-free — certified for sensitive microbiological applications
Specifications
| Specification | Detail |
|---|---|
| Material | High-grade polystyrene |
| Available Sizes | 35 mm | 60 mm | 90 mm | 100 mm | 150 mm |
| Lid Type | Solid lid |
| External Grip | ✓ Yes — lid and base |
| Optical Clarity | Exceptional — suitable for direct microscopic observation |
| Heat Resistance | Compatible with hot agar pours — no deformation |
| Sterile | ⚠️ Non-Sterile |
| Autoclavable | ⚠️ Not recommended |
| Packaging | Sleeve-packed |
| 35 mm — per sleeve / per case | 10 per sleeve | 2,300 per case |
| 60 mm — per sleeve / per case | 20 per sleeve | 1,000 per case |
| 90 mm — per sleeve / per case | 20 per sleeve | 500 per case |
| 100 mm — per sleeve / per case | 10 per sleeve | 320 per case |
| 150 mm — per sleeve / per case | 10 per sleeve | 160 per case |
| Quality System | Manufactured under ISO 13485 |
| Biocompatibility | Meets USP Class VI requirements |
| RNase / DNase-free | ✓ Certified |
| Human DNA-free | ✓ Certified |
| Pyrogen-free | ✓ Certified |
| ATP-free | ✓ Certified |
Storage & Handling
- Store in original sleeve packaging in a clean, dry environment away from direct sunlight and UV exposure
- Maintain storage temperature between 15°C and 30°C (59°F – 86°F)
- Keep away from excessive humidity
- If sterilization is required prior to use, UV or gamma irradiation are the recommended methods — do not autoclave polystyrene petri dishes
- Pour hot agar carefully — dishes are heat resistant but allow agar to cool slightly before stacking
- Handle with gloves using standard aseptic technique inside a biosafety cabinet or laminar flow hood
- Use the external grip to handle dishes securely while wearing lab gloves
- Dispose of used dishes in accordance with your institution's biosafety waste disposal guidelines
⚠️ Supplied non-sterile — do not autoclave polystyrene petri dishes. If sterilization is required prior to use, UV or gamma irradiation are the recommended methods.
Frequently Asked Questions
Why are these dishes supplied non-sterile?
Standard polystyrene petri dishes are supplied non-sterile. Polystyrene cannot withstand autoclave temperatures — do not autoclave. If sterilization is required prior to use, UV irradiation inside a biosafety cabinet or gamma irradiation are the recommended methods. Many bacteriological applications pour hot agar directly into non-sterile dishes, as the agar itself sterilizes the dish during pouring.
Can I pour hot agar directly into these dishes?
Yes — these dishes are manufactured from heat-resistant high-grade polystyrene designed to withstand hot agar pours without deformation or warping. Allow agar to cool slightly from boiling before pouring to avoid excessive heat stress on the dish. The exceptional optical clarity is maintained after agar solidification for direct colony observation.
What size dish should I use?
Size selection depends on your application and the volume of agar required. The 35 mm dish is suitable for small-volume cultures and limited sample screening. The 60 and 90 mm dishes are the most common choice for routine bacteriological culture, isolation, and colony counting. The 100 mm dish suits standard pour plate and spread plate techniques. The 150 mm dish is best for large-surface spreading, high-density colony work, and applications requiring maximum surface area.
What is the external grip for?
The external grip on the lid and base provides a secure, stable surface for handling dishes while wearing standard lab gloves — reducing the risk of dropping during transfer, incubation loading, and colony counting. The grip is especially useful when handling multiple dishes in sequence during high-throughput workflows.
Are Certificates of Analysis available?
Yes — Certificates of Analysis (COA) are available upon request. Each lot is tested and certified RNase-, DNase-, Human DNA-, ATP-, and Pyrogen-free, manufactured under ISO 13485, and meets USP Class VI biocompatibility requirements. Contact us with your lot number for documentation.
Description
Key Features
Specifications
Storage & Handling
FAQs
Product Description
Standard polystyrene petri dishes for bacteriological laboratory applications. Available in 35, 60, 90, 100, and 150 mm formats, these dishes are manufactured from high-grade polystyrene with exceptional optical clarity for direct microscopic analysis and heat resistance for use with hot agar pours without deformation.
Petri dishes are among the most important consumables in bacteriological laboratories — used for culture isolation, colony counting, microbial identification, and a wide range of microbiological assays. The external grip on the lid and base allows secure, stable handling while wearing standard lab gloves, reducing contamination risk during transfer and incubation.
Supplied non-sterile and sleeve-packed for high-throughput laboratory use. UV sterilization or gamma irradiation may be used for sterilization prior to use if required.
Key Features & Benefits
- Five size formats — 35, 60, 90, 100, and 150 mm to match culture scale from small-volume isolations to large-surface colony spreading
- Exceptional optical clarity — high-grade polystyrene construction for clear, distortion-free microscopic observation of colonies and culture morphology
- Heat resistant — withstands hot agar pours without deformation or warping for reliable culture preparation
- External grip design — textured external grip on lid and base for secure, stable handling with standard lab gloves
- Solid lid — provides a secure, stable closure during incubation and storage
- Sleeve-packed — convenient sleeve format for bench access and efficient storage
- Non-sterile — supplied non-sterile; sterilize by UV or gamma irradiation prior to use if required
- High-grade polystyrene resin — consistent quality for reproducible microbiological results
- DNase/RNase, Human DNA, ATP, and Pyrogen-free — certified for sensitive microbiological applications
Specifications
| Specification | Detail |
|---|---|
| Material | High-grade polystyrene |
| Available Sizes | 35 mm | 60 mm | 90 mm | 100 mm | 150 mm |
| Lid Type | Solid lid |
| External Grip | ✓ Yes — lid and base |
| Optical Clarity | Exceptional — suitable for direct microscopic observation |
| Heat Resistance | Compatible with hot agar pours — no deformation |
| Sterile | ⚠️ Non-Sterile |
| Autoclavable | ⚠️ Not recommended |
| Packaging | Sleeve-packed |
| 35 mm — per sleeve / per case | 10 per sleeve | 2,300 per case |
| 60 mm — per sleeve / per case | 20 per sleeve | 1,000 per case |
| 90 mm — per sleeve / per case | 20 per sleeve | 500 per case |
| 100 mm — per sleeve / per case | 10 per sleeve | 320 per case |
| 150 mm — per sleeve / per case | 10 per sleeve | 160 per case |
| Quality System | Manufactured under ISO 13485 |
| Biocompatibility | Meets USP Class VI requirements |
| RNase / DNase-free | ✓ Certified |
| Human DNA-free | ✓ Certified |
| Pyrogen-free | ✓ Certified |
| ATP-free | ✓ Certified |
Storage & Handling
- Store in original sleeve packaging in a clean, dry environment away from direct sunlight and UV exposure
- Maintain storage temperature between 15°C and 30°C (59°F – 86°F)
- Keep away from excessive humidity
- If sterilization is required prior to use, UV or gamma irradiation are the recommended methods — do not autoclave polystyrene petri dishes
- Pour hot agar carefully — dishes are heat resistant but allow agar to cool slightly before stacking
- Handle with gloves using standard aseptic technique inside a biosafety cabinet or laminar flow hood
- Use the external grip to handle dishes securely while wearing lab gloves
- Dispose of used dishes in accordance with your institution's biosafety waste disposal guidelines
⚠️ Supplied non-sterile — do not autoclave polystyrene petri dishes. If sterilization is required prior to use, UV or gamma irradiation are the recommended methods.
Frequently Asked Questions
Why are these dishes supplied non-sterile?
Standard polystyrene petri dishes are supplied non-sterile. Polystyrene cannot withstand autoclave temperatures — do not autoclave. If sterilization is required prior to use, UV irradiation inside a biosafety cabinet or gamma irradiation are the recommended methods. Many bacteriological applications pour hot agar directly into non-sterile dishes, as the agar itself sterilizes the dish during pouring.
Can I pour hot agar directly into these dishes?
Yes — these dishes are manufactured from heat-resistant high-grade polystyrene designed to withstand hot agar pours without deformation or warping. Allow agar to cool slightly from boiling before pouring to avoid excessive heat stress on the dish. The exceptional optical clarity is maintained after agar solidification for direct colony observation.
What size dish should I use?
Size selection depends on your application and the volume of agar required. The 35 mm dish is suitable for small-volume cultures and limited sample screening. The 60 and 90 mm dishes are the most common choice for routine bacteriological culture, isolation, and colony counting. The 100 mm dish suits standard pour plate and spread plate techniques. The 150 mm dish is best for large-surface spreading, high-density colony work, and applications requiring maximum surface area.
What is the external grip for?
The external grip on the lid and base provides a secure, stable surface for handling dishes while wearing standard lab gloves — reducing the risk of dropping during transfer, incubation loading, and colony counting. The grip is especially useful when handling multiple dishes in sequence during high-throughput workflows.
Are Certificates of Analysis available?
Yes — Certificates of Analysis (COA) are available upon request. Each lot is tested and certified RNase-, DNase-, Human DNA-, ATP-, and Pyrogen-free, manufactured under ISO 13485, and meets USP Class VI biocompatibility requirements. Contact us with your lot number for documentation.
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