EnglishCurrent
德语
阿拉伯语
法语
印尼语
日语
韩语
马来语
葡萄牙语
俄语
西班牙语
泰语
土耳其语
越南语
Microbiological Environmental Monitoring Products
Contact Plate
A 55 mm prepared agar plate with a raised convex surface for direct microbial sampling of cleanroom surfaces and personnel.
- Raised Contact Agar Surface
- 55 mm Monitoring Format
- Neutralizer Options
- Sterile Lockable Plate
Product Introduction
The Contact Plate is filled so the agar forms a smooth convex surface above the dish rim. Removing the lid allows the medium to touch a defined area of a dry flat surface or a gloved fingertip without scraping the plastic edge. After controlled pressure and dwell, the plate is closed and incubated for recovery and enumeration. Critical-area formats use gamma-irradiated triple wrapping, while lockable lids, data identification and neutralizer blends support secure cleanroom workflows.
Key Features
The compact 55 mm format fits common surface, glove-print and active-air accessories.
Neutralizer blends reduce inhibition by residues from routine disinfectants.
Lockable and sterile triple-wrapped formats support critical-area transfer and transport.
Customer Product Concerns
Contact plates must provide uniform contact while avoiding agar damage, disinfectant inhibition and loss of sample identity.
A recessed agar surface cannot fully touch the monitored surface.Convex filling raises the medium above the rim for a broad defined contact area.
Residual sanitizer suppresses growth and masks viable contamination.Optional lecithin, polysorbate, histidine and thiosulfate neutralize a range of common residues.
The lid opens during transfer to the incubator.A positive lock option keeps the closed plate secure during handling.
Critical-zone unpacking introduces contamination.Gamma irradiation and staged triple wrapping support controlled transfer into isolators and cleanrooms.
Typical Applications
Cleanroom surface monitoringGlove and fingertip samplingIsolator interior checksCleaning and disinfection verification
Technical Parameters
Typical construction values for a prepared cleanroom contact plate are listed below.
| Core Material | Medical-grade polystyrene plate with raised TSA, SDA or selected environmental-monitoring agar |
|---|---|
| Panel Thickness | 14-20 mm closed plate height |
| Effective Width | 55 mm nominal contact plate diameter |
| Maximum Length | Up to 60 mm overall outside diameter |
| Steel Facing Thickness | 0.7-1.0 mm equivalent polystyrene wall thickness |
| Core Density | 1040-1060 kg/m³ for polystyrene components |
| Thermal Conductivity | 0.10-0.14 W/(m·K) for polystyrene components |
| Surface Finish | Crystal-clear dish with smooth convex pale-straw agar and optional green identification rim |
| Joint Type | Slip-fit or lockable lid with molded stacking ring and plate-identification area |
| Customization | Available based on the intended application and operating environment. |
Available Options
TSA or SDA mediumMultiple neutralizer blendsGamma-irradiated triple wrappingLockable or non-lockable lid
Planning a Contact Plate specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
