Whatman^® Quantitative Filter Paper, Ashless, Grade 589/2 White Ribbon, Diam. 12.7 mm0, Whatman (CAT#: STEM-L-4464-LC)

The Whatman^® Quantitative Filter Paper, Ashless, Grade 589/2 manufactured by Whatman is ideal for gravimetric analysis and the sample preparation for instrumental analysis. The ash is extremely low to 0.01% while the flow rate is medium, making it suitable for determining the sand content in foodstuffs; determining the grade of flour; and analyzing aqueous suspensions in the paper industry.

Material: Cellulose filters, circles
Packaging: Pack of 100
Parameter: 70 sec/100 mL speed (Herzberg)
Diam.: 12.7 mm
Thickness: 180 μm
Ash: ≤0.01%
Pore size: 4-12 μm (Particle retention)
Basis weight: 85 g/m²

Medium filtration speed
Ideal for collection of medium fine precipitates

Whatman^® Quantitative Filter Paper, Ashless, Grade 589/2 White Ribbon, Diam. 90 mm, Whatman (CAT#: STEM-L-4465-LC)