These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.
Grade 591: 7-12 μm, (medium fast, thick filter paper)
A thick filter paper with a very high loading capacity for fast filtration of medium to coares participates. Offers high absorbency and increased wet strength.