The importance of choosing high-quality filters cannot be overstated. If you are in the environmental monitoring or laboratory field, you need reliable and efficient products to ensure accurate results.
The 47mm EPM2000 Hi-Purity Glass Fiber Filters are designed for high-purity applications. With 100% borosilicate glass construction, they provide the chemical inertness and thermal stability[^1] needed for precise gravimetric analysis.
The right filter can make a significant difference in your results. The EPM2000 filters are crafted from borosilicate glass microfibers, offering high flow rates and excellent chemical resistance[^2]. These features ensure that your samples are collected accurately without interference from organic binders[^3]. You can depend on these filters for ambient air monitoring or laboratory applications.
Why Choose 47mm EPM2000 Filters for Your Laboratory?
Let's dive deeper into why these filters stand out.
The EPM2000 filters have an operating temperature of up to 550°C. This capability makes them suitable for high-temperature conditioning and ashing procedures[^4].
Their binder-free design guarantees analytical purity. This means you can be confident in the integrity of your samples. The hydrophilic surface allows for effective handling of aqueous samples[^5], making these filters even more versatile in laboratory settings.
Key Features of EPM2000 Filters
| Feature | Description |
|---|---|
| Material | Borosilicate glass microfiber |
| Binder-free | Ensures analytical purity |
| Temperature Resistance | Maximum operating temperature of 550°C |
| Surface Type | Hydrophilic surface suitable for aqueous samples |
These filters fit standard lab filter holders and low-volume sampling equipment[^6]. They comply with various analytical procedures for particulate matter characterization. Whether you're conducting gravimetric analysis or preparing samples for microscopy, the EPM2000 filters meet the requirements for Total Suspended Solids (TSS) testing[^7].
Proper Handling of EPM2000 Filters: Why It Matters?
Handling filters correctly is crucial for maintaining their integrity and ensuring accurate results.
Pre-conditioning the filters by heating them to 550°C for one hour removes moisture and volatile compounds[^8]. This practice is essential before weighing your samples.
After conditioning, it's best to store filters in a desiccator until you're ready to use them. Using clean forceps is vital to avoid contamination during sampling and analysis. This level of care will help preserve the quality of your samples and the reliability of your results.
Applications That Benefit from EPM2000 Filters
The EPM2000 filters excel in specific applications.
They are perfect for laboratory filtration of aqueous samples and ambient air particulate collection. These filters are particularly beneficial in gravimetric determination of airborne particulates.
Additionally, EPM2000 filters are ideal for environmental monitoring applications that require high-purity media. They are commonly used as pre-filters before membrane filtration and as collection media for subsequent chemical or microscopic analysis of captured particles. Their versatility makes them an asset in various fields, including environmental monitoring, life sciences, and pharmaceuticals.
Conclusion
The 47mm EPM2000 Hi-Purity Glass Fiber Filters are reliable and versatile for laboratory filtration needs. Their high-quality construction ensures accurate and dependable results for your analytical processes.
[^1]: "Borosilicate glass - Wikipedia", https://en.wikipedia.org/wiki/Borosilicate_glass. A materials reference on borosilicate glass documents its chemical durability and low thermal expansion, supporting the claim that borosilicate glass media are suitable for chemically and thermally demanding analytical work. Evidence role: mechanism; source type: encyclopedia. Supports: Borosilicate glass construction provides chemical inertness and thermal stability needed for precise gravimetric analysis.. Scope note: This supports the material-property rationale, not the measured performance of this specific filter product or lot.
[^2]: "Review of Filters for Air Sampling and Chemical Analysis in ...", https://pmc.ncbi.nlm.nih.gov/articles/PMC10174218/. A filtration or aerosol-sampling reference describing glass-fiber depth filters can support that glass microfiber media are commonly used where comparatively high flow and chemical resistance are needed. Evidence role: general_support; source type: paper. Supports: Borosilicate glass microfiber filters offer high flow rates and chemical resistance.. Scope note: The source would provide contextual support for glass microfiber media in general, not quantitative flow-rate data for EPM2000 filters.
[^3]: "Filtration Characteristics of Glass Fiber Filter at Elevated ...", https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=91015XO6.TXT. A particulate-matter or gravimetric-analysis method that specifies binder-free glass-fiber filters can support the rationale that avoiding organic binders reduces potential analytical contamination or mass artifacts. Evidence role: mechanism; source type: government. Supports: Binder-free filters help samples be collected without interference from organic binders.. Scope note: Such methods support the contamination-control principle; they do not prove that all possible analytical interferences are eliminated.
[^4]: "EPA-NERL: 160.2: Non-filterable Residue by Drying Oven", https://www.nemi.gov/methods/method_summary/5213/. A standard solids or particulate-analysis method using ignition or ashing at approximately 550°C supports that filters capable of withstanding this temperature are relevant to high-temperature conditioning and ash determination workflows. Evidence role: case_reference; source type: government. Supports: A filter operating temperature up to 550°C makes the filters suitable for high-temperature conditioning and ashing procedures.. Scope note: Temperature protocols vary by method and analyte, so the evidence supports suitability for common procedures rather than universal applicability.
[^5]: "Hydrophilic Membrane Filters: High-Performance Filtration", https://www.meissner.com/hydrophilic-membrane-filters/. A filtration reference defining hydrophilic filter media as water-wettable supports the mechanism by which hydrophilic surfaces facilitate filtration or handling of aqueous samples. Evidence role: definition; source type: education. Supports: A hydrophilic filter surface supports effective handling of aqueous samples.. Scope note: This supports the general wetting behavior of hydrophilic media, not the complete performance of this specific filter in every aqueous matrix.
[^6]: "47 mm Disc Filter Holder | Superior Quality | Liquid and Gas", https://www.meissner.com/products/laboratory-filters/47-mm-disc-filter-holder/. A laboratory filtration or air-sampling standard documenting the common use of 47 mm filter formats can support the claim that this diameter is compatible with many standard holders and low-volume sampling systems. Evidence role: general_support; source type: institution. Supports: 47 mm filters fit standard laboratory filter holders and low-volume sampling equipment.. Scope note: This would support common format compatibility, not guarantee fit with every holder or sampler model.
[^7]: "https://www.deq.nc.gov/residue-suspended-2540-d-wo...", https://www.deq.nc.gov/residue-suspended-2540-d-word/open. EPA Method 160.2 or Standard Methods 2540D specifies use of prepared glass-fiber filters for gravimetric determination of total suspended solids, supporting the relevance of glass-fiber media to TSS testing. Evidence role: case_reference; source type: government. Supports: Glass-fiber filters can meet requirements for Total Suspended Solids testing when prepared and used according to the applicable method.. Scope note: Method compliance also depends on filter preparation, pore-retention characteristics, apparatus, and quality-control steps, not only on filter material.
[^8]: "Methods for Chemical Analysis of Water and Wastes - epa nepis", https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=30000Q10.TXT. A gravimetric solids method describing ignition of glass-fiber filters at about 550°C before cooling in a desiccator and weighing supports the practice of high-temperature preconditioning to reduce residual moisture and volatile material before mass measurements. Evidence role: mechanism; source type: government. Supports: Heating glass-fiber filters to 550°C before weighing can remove moisture and volatile compounds as part of gravimetric preparation.. Scope note: The exact time and temperature should be matched to the specific analytical method; some TSS protocols emphasize drying near 103–105°C rather than ignition for all determinations.
