AZUR SYSTEMIllustration
Specialty Lab Supplies
Laboratory Filter Paper
Choose thickness, flow grade and ash content around the method. Different grades are not interchangeable.
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AZUR SYSTEMIllustration
LABORATORY / Specialty Lab Supplies
Glass Fiber Discs
For method-specific prefiltration or testing. Confirm binders, thickness and sample compatibility.
- Product type
- Specialty Lab Supplies
- Material options
- Glass fiber
- Specifications
- Confirmed by model and process
Images and specifications refer to the indicated models. Contact us to confirm configuration and suitability.
Construction & operating principle
A glass-fibre disc forms a porous network of intersecting fibres with appreciable depth. Particles can be captured within that network, supporting prefiltration or method-defined particle collection. Its retention mechanism and rating convention differ from those of a microporous membrane. Binder content, fibre release and blank mass matter particularly for gravimetry, trace analysis and downstream filtrate quality.
Typical uses
- Prefiltration of particle-rich samples
- Collection of suspended matter under a defined method
- Reduction of loading on a finer downstream membrane
Compare product approaches
| Selection factor | What to compare |
|---|---|
| Binder | Bound and binder-free structures differ in strength, background and response to thermal treatment. |
| Media grade | Thickness and fibre arrangement affect flow, capacity and breakthrough; compare equivalent test methods. |
| Subsequent analysis | Weighing, extraction and microscopy impose different background requirements. |
Selection information to confirm
| Category | Specialty Lab Supplies |
|---|---|
| Material options | Glass fiber |
| 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.
Build a clear application brief
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 ↗Use & maintenance
- 01
Installation
Use suitable support and gentle edge handling to avoid crushing or abrasion.
- 02
Filtration
Build differential pressure steadily and record volume and resistance for heavily loaded samples.
- 03
Analysis
Condition and store discs as the method requires, treating blanks identically.
Product questions
Is a glass-fibre rating equivalent to membrane pore size?
Not automatically; depth retention depends on challenge particles and test conditions.
Can prefiltration lose the target?
Targets may be particle-associated or adsorb to the medium, so compare recovery before and after treatment.
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