WHATMAN Grade 591 Qualitative Filter Paper

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.
• Typical Properties

Description Medium fast, thick
Particle Retention in Liquid (μm) 7-12
Filtration Speed (approx) Herzberg (s) 45
Air Flow (s/100 ml/in2) 5.9
Typical Thickness (μm) 350
Basis Weight (g/m2) 161

• Ordering Information – Qualitative Filter Sheets

Dimensions (mm) Catalog Number Quantity/Pack
580 × 580 10311387 250