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- RODAC Dishes
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Description
Key Features
Specifications
Storage & Handling
FAQs
Product Description
✦ RODAC Contact Plates — Environmental Surface Monitoring
Replicate Organism Detection and Counting (RODAC) contact plates are specifically designed for direct surface contact sampling — used to monitor microbial contamination on environmental surfaces, equipment, and work areas in cleanrooms, pharmaceutical manufacturing, food processing, and clinical settings.
Sterile 60 mm RODAC contact plates manufactured from high-grade polystyrene with exceptional optical clarity for direct colony counting and microscopic analysis. The convex agar surface design allows direct contact with flat and irregular surfaces for accurate environmental monitoring sampling.
Supplied empty and sterile — ready to be filled with your choice of agar medium for customized environmental monitoring programs. The absence of an external grip on the rim allows unobstructed surface contact for complete and consistent sampling across the plate surface.
Essential for environmental monitoring programs in pharmaceutical QC, cleanroom validation, food safety testing, and clinical microbiology.
Key Features & Benefits
- Designed for surface contact sampling — RODAC format specifically engineered for direct contact environmental monitoring of surfaces, equipment, and work areas
- Supplied empty and sterile — fill with your choice of agar medium for flexible, customized environmental monitoring programs
- No external grip — smooth rim profile allows unobstructed, complete surface contact for accurate and consistent sampling
- 60 mm format — standard RODAC contact plate size for environmental monitoring applications
- Exceptional optical clarity — high-grade polystyrene for clear, direct colony counting and microscopic observation
- Heat resistant — withstands hot agar pours without deformation for reliable media preparation
- Sterile — gamma irradiated, dose verification per ISO 11137, SAL 10⁻⁶
- Sleeve-packed — 20 plates per sleeve for convenient bench access and storage
- DNase/RNase, Human DNA, ATP, and Pyrogen-free — certified for sensitive environmental monitoring applications
✦ Supplied empty — pour your choice of agar medium (TSA, R2A, Sabouraud, etc.) prior to use for customized environmental monitoring.
Specifications
| Specification | Detail |
|---|---|
| Material | High-grade polystyrene |
| Size | 60 mm diameter |
| Application | Environmental surface contact sampling — RODAC format |
| Supplied | Empty — fill with agar of choice prior to use |
| External Grip | ⚠️ None — smooth rim for surface contact |
| Lid Type | Solid lid |
| Optical Clarity | Exceptional — suitable for direct colony counting |
| Heat Resistance | Compatible with hot agar pours |
| Sterile | ✓ Yes — individually sleeve-packed |
| Sterilization Method | Gamma irradiation — dose verification per ISO 11137 |
| Sterility Assurance Level | SAL 10⁻⁶ |
| Packaging | Sleeve-packed — 20 plates per sleeve |
| Per Case | 1,000 plates per case (50 sleeves) |
| 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
- Do not use plates from damaged or previously opened packaging
- Open aseptically inside a biosafety cabinet or laminar flow hood when pouring agar
- Allow poured plates to cool and solidify completely before use for surface sampling
- Store poured plates inverted at 2–8°C until use to prevent condensation on the agar surface
- Use within the manufacturer's recommended timeframe after agar pour
- Apply firm, even pressure during surface contact sampling for consistent results
- Dispose of used plates in accordance with your institution's biosafety waste disposal guidelines
⚠️ Supplied empty — do not use for surface sampling without first filling with an appropriate agar medium. Store poured plates inverted at 2–8°C to prevent condensation on the agar surface.
Frequently Asked Questions
What is a RODAC contact plate?
RODAC stands for Replicate Organism Detection and Counting. RODAC contact plates are specifically designed for direct surface contact sampling — used to detect and quantify microbial contamination on environmental surfaces, equipment, walls, floors, and work areas. They are a standard tool for environmental monitoring programs in pharmaceutical manufacturing, cleanroom validation, food processing, hospital infection control, and clinical microbiology.
Why do these plates have no external grip?
The smooth rim profile of RODAC plates is intentional — it allows the plate to make complete, unobstructed contact with the surface being sampled. An external grip or raised rim would prevent full surface contact and compromise the accuracy and consistency of your environmental monitoring results. Always handle these plates by the lid or base walls rather than a grip.
What agar should I use to fill these plates?
The choice of agar depends on your environmental monitoring program requirements. Commonly used media include Tryptic Soy Agar (TSA) for total aerobic count, R2A for low-nutrient environments, Sabouraud Dextrose Agar for fungi, and Neutralizing Agar for use in areas with residual disinfectants. Follow your facility's validated environmental monitoring SOP for agar selection and preparation.
How do I use RODAC plates for surface sampling?
Remove the lid and apply the agar surface directly to the surface being sampled with firm, even pressure for the contact time specified in your SOP (typically 10 seconds). Replace the lid, label the plate with the sample location and time, and incubate according to your protocol. Count colonies after incubation and record results per your environmental monitoring program.
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
✦ RODAC Contact Plates — Environmental Surface Monitoring
Replicate Organism Detection and Counting (RODAC) contact plates are specifically designed for direct surface contact sampling — used to monitor microbial contamination on environmental surfaces, equipment, and work areas in cleanrooms, pharmaceutical manufacturing, food processing, and clinical settings.
Sterile 60 mm RODAC contact plates manufactured from high-grade polystyrene with exceptional optical clarity for direct colony counting and microscopic analysis. The convex agar surface design allows direct contact with flat and irregular surfaces for accurate environmental monitoring sampling.
Supplied empty and sterile — ready to be filled with your choice of agar medium for customized environmental monitoring programs. The absence of an external grip on the rim allows unobstructed surface contact for complete and consistent sampling across the plate surface.
Essential for environmental monitoring programs in pharmaceutical QC, cleanroom validation, food safety testing, and clinical microbiology.
Key Features & Benefits
- Designed for surface contact sampling — RODAC format specifically engineered for direct contact environmental monitoring of surfaces, equipment, and work areas
- Supplied empty and sterile — fill with your choice of agar medium for flexible, customized environmental monitoring programs
- No external grip — smooth rim profile allows unobstructed, complete surface contact for accurate and consistent sampling
- 60 mm format — standard RODAC contact plate size for environmental monitoring applications
- Exceptional optical clarity — high-grade polystyrene for clear, direct colony counting and microscopic observation
- Heat resistant — withstands hot agar pours without deformation for reliable media preparation
- Sterile — gamma irradiated, dose verification per ISO 11137, SAL 10⁻⁶
- Sleeve-packed — 20 plates per sleeve for convenient bench access and storage
- DNase/RNase, Human DNA, ATP, and Pyrogen-free — certified for sensitive environmental monitoring applications
✦ Supplied empty — pour your choice of agar medium (TSA, R2A, Sabouraud, etc.) prior to use for customized environmental monitoring.
Specifications
| Specification | Detail |
|---|---|
| Material | High-grade polystyrene |
| Size | 60 mm diameter |
| Application | Environmental surface contact sampling — RODAC format |
| Supplied | Empty — fill with agar of choice prior to use |
| External Grip | ⚠️ None — smooth rim for surface contact |
| Lid Type | Solid lid |
| Optical Clarity | Exceptional — suitable for direct colony counting |
| Heat Resistance | Compatible with hot agar pours |
| Sterile | ✓ Yes — individually sleeve-packed |
| Sterilization Method | Gamma irradiation — dose verification per ISO 11137 |
| Sterility Assurance Level | SAL 10⁻⁶ |
| Packaging | Sleeve-packed — 20 plates per sleeve |
| Per Case | 1,000 plates per case (50 sleeves) |
| 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
- Do not use plates from damaged or previously opened packaging
- Open aseptically inside a biosafety cabinet or laminar flow hood when pouring agar
- Allow poured plates to cool and solidify completely before use for surface sampling
- Store poured plates inverted at 2–8°C until use to prevent condensation on the agar surface
- Use within the manufacturer's recommended timeframe after agar pour
- Apply firm, even pressure during surface contact sampling for consistent results
- Dispose of used plates in accordance with your institution's biosafety waste disposal guidelines
⚠️ Supplied empty — do not use for surface sampling without first filling with an appropriate agar medium. Store poured plates inverted at 2–8°C to prevent condensation on the agar surface.
Frequently Asked Questions
What is a RODAC contact plate?
RODAC stands for Replicate Organism Detection and Counting. RODAC contact plates are specifically designed for direct surface contact sampling — used to detect and quantify microbial contamination on environmental surfaces, equipment, walls, floors, and work areas. They are a standard tool for environmental monitoring programs in pharmaceutical manufacturing, cleanroom validation, food processing, hospital infection control, and clinical microbiology.
Why do these plates have no external grip?
The smooth rim profile of RODAC plates is intentional — it allows the plate to make complete, unobstructed contact with the surface being sampled. An external grip or raised rim would prevent full surface contact and compromise the accuracy and consistency of your environmental monitoring results. Always handle these plates by the lid or base walls rather than a grip.
What agar should I use to fill these plates?
The choice of agar depends on your environmental monitoring program requirements. Commonly used media include Tryptic Soy Agar (TSA) for total aerobic count, R2A for low-nutrient environments, Sabouraud Dextrose Agar for fungi, and Neutralizing Agar for use in areas with residual disinfectants. Follow your facility's validated environmental monitoring SOP for agar selection and preparation.
How do I use RODAC plates for surface sampling?
Remove the lid and apply the agar surface directly to the surface being sampled with firm, even pressure for the contact time specified in your SOP (typically 10 seconds). Replace the lid, label the plate with the sample location and time, and incubate according to your protocol. Count colonies after incubation and record results per your environmental monitoring program.
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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