Whatman^® Quantitative Filter papers, Ashless, Grade 44, Diam. 90 mm, 0.29 psi Wet Burst, Whatman (CAT#: STEM-L-4474-LC)

The Whatman^® Quantitative Filter Paper, Ashless, Grade 44 manufactured by Whatman is ideal for gravimetric analysis and the sample preparation for instrumental analysis. The ash is extremely low to 0.007%. It can retain very fine particles.

Material: Contton filters, circles
Packaging: Pack of 100
Parameter: 995 sec/100 mL speed (Herzberg), 0.29 psi wet burst
Diam.: 90 mm
Thickness: 180 μm
Ash: ≤0.007%
Pore size: 3 μm (Particle retention)
Basis weight: 80 g/m²

Ideal for retention of very fine particles

Whatman^® Quantitative Filter papers, Ashless, Grade 44, Diam. 70 mm, Whatman (CAT#: STEM-L-4475-LC)