Description
Product Overview
The ProWeigh 47mm glass fiber filter, manufactured by Environmental Express, is engineered to meet the rigorous demands of laboratory filtration, particularly for total suspended solids (TSS) testing. Crafted from high‑purity glass fiber, the filter media provides a uniform pore structure that captures fine particulates while allowing clear liquid to pass through with minimal resistance. Each filter is produced without a binder, eliminating potential sources of contamination and ensuring that the filter itself does not contribute to analytical variance.
To guarantee traceability and accuracy, every filter undergoes a meticulous preparation process. After being formed, the glass fiber sheets are weighed to a tolerance of 0.1 mg, then washed three times in deionized water to remove any residual manufacturing debris. The filters are subsequently dried at a controlled temperature of 105 °C, a step that stabilizes the material and locks in the precise weight. Finally, each filter is placed in an individually labeled aluminum pan; the label displays the exact weight and includes a Code 128 barcode, facilitating quick inventory management and reducing the risk of mix‑ups in busy laboratory environments.
With a diameter of 47 mm, the filter fits standard laboratory filtration apparatus, making it a versatile choice for a wide range of analytical protocols. The combination of binder‑less construction, pre‑weighed precision, and robust packaging delivers a product that not only meets but exceeds the expectations of quality‑focused scientists and technicians.
Usage
These 47mm ProWeigh filters are ideal for applications that require consistent, high‑resolution separation of suspended particles from aqueous samples. Typical use cases include environmental monitoring of water bodies, wastewater treatment plant effluent analysis, and industrial process water quality control. The binder‑less glass fiber media ensures that no additional chemicals are introduced during filtration, preserving the integrity of the sample for downstream analytical methods such as gravimetric determination, spectrophotometry, or chromatography.
When deploying the filter, users simply place the pre‑weighed filter into the designated holder of their filtration setup, add the sample, and apply the recommended vacuum or pressure. Because the filter weight is already known to a high degree of accuracy, the analyst can directly calculate the mass of retained solids by subtracting the initial filter weight from the final combined weight after filtration and drying. This streamlined workflow reduces the time spent on manual weighing steps and minimizes potential sources of error.
The aluminum pan packaging protects the filter from physical damage and environmental exposure during storage and transport. The barcode on each label can be scanned with standard laboratory inventory systems, enabling rapid verification of filter specifications and ensuring that the correct filter is selected for each test. This level of traceability is especially valuable in regulated environments where documentation of each analytical step is required.
Why Choose Us
Environmental Express has a long‑standing reputation for delivering laboratory consumables that adhere to strict quality standards. Our ProWeigh filters are produced in a controlled environment that follows Standard Methods requirements, guaranteeing that each filter meets the exacting criteria demanded by accredited laboratories. The binder‑less design eliminates the risk of chemical interference, a common concern with traditional filtered media that rely on polymeric binders.
Our commitment to precision is evident in the pre‑weighed approach. By delivering filters that are already calibrated to 0.1 mg, we remove a critical source of variability from the analytical process. This precision translates into more reliable data, faster turnaround times, and increased confidence in the results reported to regulatory agencies or internal stakeholders.
In addition to product performance, we provide comprehensive customer support. Our technical service team is available to assist with method development, troubleshoot unexpected results, and advise on optimal storage conditions. Should any issue arise, we offer a responsive after‑sales service that includes replacement of defective units and guidance on best practices for filter handling.
Choosing Environmental Express means partnering with a supplier that values both scientific rigor and user convenience. Our filters are designed to integrate seamlessly into existing laboratory workflows, and our packaging solutions are engineered to protect the product from contamination and physical damage throughout its lifecycle.
Key Features
- Binder‑less glass fiber media eliminates chemical interference for accurate analysis
- Pre‑weighed to 0.1 mg, reducing weighing steps and improving data reliability
- Three‑stage deionized water wash removes manufacturing residues
- Durable aluminum pan with printed weight and Code 128 barcode for easy tracking
- Responsive technical support and replacement service for peace of mind
FAQ
What size filtration apparatus is compatible with the 47mm filter?
The 47mm diameter is compatible with most standard laboratory filter holders, including Buchner funnels, vacuum filtration units, and pressure‑driven filtration systems that accept 47 mm filter discs.
Can the filter be reused after cleaning?
These filters are intended for single‑use applications to maintain analytical integrity. Re‑using a filter could introduce cross‑contamination and affect the accuracy of subsequent measurements.
How does the pre‑weighed feature improve my workflow?
Because the filter weight is known to within 0.1 mg, you can directly calculate the mass of retained solids without an additional weighing step, saving time and reducing potential error.
Is the aluminum pan recyclable?
Yes, the aluminum pan is fully recyclable. After the filter is disposed of, the pan can be placed in a recycling stream according to local regulations.
What is the shelf life of the ProWeigh filter?
When stored in a cool, dry environment away from direct sunlight, the filter maintains its performance for up to 24 months from the date of manufacture.
Reviews
There are no reviews yet.