Whatman^® Quantitative Filter papers, Ashless, Grade 41, 460 mm × 570 mm, Whatman (CAT#: STEM-L-4508-LC)

The Whatman^® Quantitative Filter Paper, Ashless, Grade 41 manufactured by Whatman is ideal for analytical procedures of coarse particles or gelatinous precipitates and quantitative air pollution analysis. The ash is extremely low to 0.007%.

Material: Contton filters, sheets
Packaging: Pack of 100
Parameter: 54 sec/100 mL speed (Herzberg), 0.22 psi wet burst
W × L: 460 mm × 570 mm
Thickness: 220 μm
Ash: ≤0.007%
Pore size: 20-25 μm (Particle retention)
Basis weight: 85 g/m²

Fast filtration speed

Whatman^® Quantitative Filter papers, Ashless, Grade 41, Diam. 185 mm, Whatman (CAT#: STEM-L-4509-LC)