Gridded Membranes
A grid supports colony counting. Confirm material, pore rating and incubation conditions against the test method.
LABORATORY / Microbiology Supplies
Connect filtration and transfer steps while considering sample volume, sealing and aseptic handling.
Images and specifications refer to the indicated models. Contact us to confirm configuration and suitability.
A microbiological filtration cup combines a sample reservoir, membrane and support base in one testing unit. Depending on the design, the membrane is transferred after filtration or the base continues into the culture workflow. Reducing open transfers can simplify handling. Reliable results still depend on sealing, suitable sample volume and even contact between the membrane and growth medium.
| Selection factor | What to compare |
|---|---|
| Culture route | Removable membranes and directly cultured bases require different methods and accessories. |
| Base compatibility | Match the filtration manifold interface rather than forcing an approximate fit. |
| Sample loading | Cup volume affects handling; turbidity also governs blockage and overlapping colonies. |
| Category | Microbiology Supplies |
|---|---|
| Material options | Membrane / funnel assembly |
| Filtration objective | Define what to remove and what to retain |
| Rating / Dimensions | Confirm combinations against controlled model specifications |
| Flow / Temperature / Pressure | Specify normal and limiting operating conditions |
| Connections / Seals | Confirm installation interfaces and wetted materials |
| Cleaning / Validation | Confirm the service cycle and acceptance criteria |
These are selection inputs, not verified performance claims for a specific model.
Use the worksheet to collect your operating conditions. Contact us for controlled datasheets, dimensional drawings or validation documents for a specific model.
Product selection worksheet · TXT ↓Request technical documents ↗Inspect packaging and components before aseptic installation on a clean filtration position.
Follow the method for inhibitory residues; arbitrary rinsing can alter recovery.
Maintain consistent nutrient contact and incubation, recording sample identity and filtered volume.
Membrane support, culture interfaces and packaging are part of the microbiological workflow.
First assess loading and blockage; excessive vacuum may affect the device or organism recovery.
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