Description
Product Overview
The Ahlstrom 6090-1500 qualitative filter paper is engineered for laboratories that demand precise, reproducible separations while maintaining the highest standards of chemical purity. Constructed from more than 95 percent super refined alpha‑cellulose and linter fibers, this filter paper provides a uniform pore structure of 4 microns, delivering a medium flow rate that balances speed and retention efficiency. Its low iron and nitrogen content makes it especially suitable for sensitive analytical procedures, such as protein quantification in beer, where trace contaminants could skew results. The 15 cm diameter format conforms to standard quadrant‑folded holders, allowing seamless integration into existing filtration setups without the need for additional adapters or modifications.
Beyond its core specifications, the 6090-1500 grade incorporates an evolution of Ahlstrom’s historic 613 series, refined specifically for the brewing industry’s stringent quality requirements. The paper’s robust mechanical strength ensures that it can withstand the rigors of gravity‑flow applications while preserving the integrity of the sample matrix. Each pack contains 100 sheets, each weighing just 0.16 ounces, making storage and handling straightforward while providing ample supply for high‑throughput environments. The product’s dimensions—6.14 × 6.14 × 1.18 inches—fit comfortably on laboratory benches, and the packaging is designed to protect the sheets from moisture and static buildup, preserving performance over extended shelf life.
![[Product front view showing all components]](https://www.jevix.store/wp-content/uploads/2026/07/3f27e54a92aa49f486557e13f0a713c9.jpg)
Usage
In routine laboratory separations, the Ahlstrom 6090-1500 filter paper excels in applications that require both high purity and consistent flow characteristics. It is ideal for gravity‑driven filtration processes, where the medium flow rate reduces processing time without compromising the capture of fine particulates. Researchers conducting protein analysis in beer benefit from the paper’s exceptionally low iron content, which minimizes interference in spectrophotometric assays and mass spectrometry readings. The filter’s compatibility with standard quadrant‑folded holders means it can be employed across a wide range of filtration apparatuses, from simple funnel setups to more sophisticated vacuum filtration systems, providing flexibility for diverse experimental protocols.
Beyond the brewing sector, this filter paper is well‑suited for environmental testing, pharmaceutical quality control, and academic research where the detection of trace contaminants is critical. Its super‑refined cellulose matrix offers excellent chemical resistance, allowing it to be used with a variety of solvents and reagents without degradation. The consistent pore size ensures reproducible results across multiple runs, making it a reliable choice for method validation and standard operating procedures. Whether filtering aqueous solutions, organic extracts, or complex mixtures, the 6090-1500 delivers dependable performance that supports accurate data collection and regulatory compliance.
Why Choose Us
Choosing Ahlstrom for your qualitative filtration needs means partnering with a brand that has over a century of experience in paper technology and a reputation for delivering products that meet exacting scientific standards. The 6090-1500 grade reflects a commitment to continuous improvement, incorporating feedback from industry professionals to refine its composition and performance characteristics. Each sheet undergoes rigorous quality control testing, including assessments of pore uniformity, tensile strength, and contaminant levels, ensuring that every batch meets the specifications required for high‑precision analytical work.
Our dedication to customer satisfaction extends beyond product manufacturing. We provide comprehensive technical support, including guidance on optimal filtration techniques, troubleshooting assistance, and recommendations for compatible equipment. In addition, our supply chain is designed for reliability, offering consistent availability and fast delivery to keep your laboratory operations running smoothly. By selecting the Ahlstrom 6090-1500 filter paper, you gain access to a trusted solution that combines superior material quality, proven performance, and responsive service, all backed by a globally recognized leader in filtration media.
Key Features
- Consistent 4 micron pore size ensures reliable separation of fine particles.
- Medium flow rate balances speed and retention, reducing processing time.
- Super‑refined cellulose with low iron and nitrogen minimizes analytical interference.
- Compatible with standard quadrant‑folded holders for easy integration into existing setups.
- Comprehensive technical support and after‑sales service for optimal user experience.
FAQ
What types of samples are best suited for this filter paper?
The 6090-1500 filter paper is ideal for aqueous solutions, organic extracts, and complex mixtures where high purity and consistent pore size are required. It excels in protein analysis for beer, environmental testing, and pharmaceutical quality control.
Can this filter paper be used with vacuum filtration systems?
Yes, the paper’s robust mechanical strength and standard 15 cm diameter make it compatible with both gravity‑flow and vacuum filtration setups. It fits standard quadrant‑folded holders, allowing seamless use in a variety of filtration apparatuses.
How does the low iron content benefit analytical applications?
Low iron content reduces background interference in spectrophotometric and mass spectrometric analyses, leading to more accurate quantification of target compounds such as proteins in beer. This characteristic is especially important when detecting trace levels of analytes.
What support is available if I encounter issues with the product?
Ahlstrom offers dedicated technical support staffed by experienced scientists who can provide guidance on filtration techniques, troubleshoot performance issues, and recommend compatible equipment to ensure optimal results.
Is the packaging designed to protect the filter paper from moisture?
Yes, each pack of 100 sheets is sealed in moisture‑resistant packaging that safeguards the paper from humidity and static buildup, preserving its performance characteristics throughout its shelf life.





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