Ahlstrom Grade 962 Filter Paper 32 cm for High-Efficiency Particle Retention (100 Sheets)

Filter - paper grade 962-

This wet‑strengthened qualitative filter paper is designed for rapid filtration in laboratory and industrial settings, maintaining robust integrity even under pressure or vacuum conditions due to its reinforced cellulose fiber composition. Scientific filter paper like this is widely utilized in analytical and preparative workflows to clarify liquids and retain particulates, and studies on filter media porosity and flow support optimized design principles for such products. Filters with appropriate pore sizes (e.g., around 27 µm) are correlated with efficient removal of coarse precipitates and particulates in many routine procedures.

Customer and peer feedback for wet‑strengthened qualitative filter papers generally highlights dependable performance for routine laboratory filtrations, with users noting consistent flow rates and reliable retention characteristics in comparison to standard qualitative grades. Industry reviews underscore that such wet‑strengthened grades are preferred when robustness and fast flow are priorities, and many laboratory professionals consistently specify wet‑strengthened discs for pressure or vacuum filtration tasks.

Popular uses of this grade include clarifying suspensions, separating coarse precipitates from solutions, and high‑throughput filtrations where speed and durability matter. Users often apply this type of filter paper in chemistry, environmental testing, and quality control labs, with general feedback pointing to its strong wet strength, fast filtration rate, and ease of handling.

This fast filtering grade is a thinner version of Grade 961 and is recommended for the filtration of coarse and gelatinous precipitates. The creped surface also offers higher surface area to maintain high filtration speed.

• Size: 32 cm
• Pore Size: 27 µm
• Pack Quantity: 100 discs

To support your laboratory filtration and sample preparation workflows beyond the Filter Paper Grade #962 32 cm — a wet‑strengthened, fast‑flow qualitative filter paper well‑suited for removing coarse precipitates and general gravity or vacuum filtration — consider additional filtration media that enhance separation versatility and efficiency. The Filter Paper Grade #515 32 cm (100) offers a larger pleated format with fast‑flow characteristics ideal for viscous solutions and high‑throughput clarification.

For standard qualitative filtration tasks requiring intermediate retention and broad applicability, the Filter Paper Grade #609 32 cm provides ~4 µm nominal retention for routine gravity and vacuum applications. Additionally, the Qualitative Filter Papers Whatman series delivers a wide selection of pore sizes and wet‑strengthened media to match varied laboratory filtration and analytical demands.

Q&A

What does “wet‑strengthened” mean?

“Wet‑strengthened” refers to filter paper that has been chemically treated during manufacture so that it retains its strength and integrity when saturated with liquid, making it suitable for vacuum or pressure filtration.}

What pore size is this filter paper designed for?

This Grade 962 filter paper has a pore size of approximately 27 µm, making it ideal for capturing coarse particulates and precipitates in fast filtration applications.

Can this filter paper be used in vacuum filtration?

Yes, because this filter paper is wet‑strengthened, it is appropriate for use in vacuum or pressure filtration setups, where non‑strengthened papers might fail when wet.