Quantitative filter paper circles, Whatman Grade 589/2
High-purity ashless filter paper made from pure cellulose for medium speed filtration of medium-coarse precipitates such as grains of sand. Also known as White Ribbon filters. Designed for routine quantitative analysis, such as aqueous suspension in paper or flour analysis, and sand content quantification.
Specifications:
- Surface: Smooth
- Particle retention in liquid: 4-12 µm (98 %)
- Filtration speed: 140 s
- Thickness: 0,180 mm
- Basis weight: 85 g/m2
- Ash content: 0,01 %