Whatman 1003-150 Filter Circles, 150mm Dia, Grade 3, 100/pk (PN:1003-150)

This filter paper has an approximate particle retention of about 6 µm, allowing it to capture relatively fine particles during filtration. This makes it suitable for applications requiring finer retention than basic filter grades while still maintaining good filtration speed.

Whatman Grade 3 filter paper is widely used in qualitative laboratory filtration, where the goal is to separate solid particles from liquids for analysis. It is often used in chemistry labs, environmental testing, and educational laboratories for precipitate collection, sample clarification, and general filtration tasks.

Grade 3 filter paper is approximately twice as thick as Grade 1, giving it higher loading capacity and improved wet strength. Because of this added thickness, it can hold more precipitate without clogging and is often preferred when filtering samples containing heavier particulate loads.

Yes. The durability and thickness of Grade 3 filter paper make it well-suited for use with Büchner funnels and vacuum filtration setups, where strong wet strength is needed to withstand pressure during filtration.

The Whatman 1003-150 filter paper features a 150 mm diameter, cellulose construction, approximately 390 µm thickness, and packaging of 100 circles per pack. These filters are designed for consistent laboratory filtration performance across a wide range of qualitative analytical procedures.