Quantitative filter paper sheets, Whatman Grade 41
Ashless filter paper made from pure cellulose for monitoring of environmental pollution with fast flow rate. Grade 41 quantitative filter papers are well suited for analysis of soil and air, or as a paper tape for impregnation when determining gaseous compounds at high flow rates.
Specifications:
- Size: 460x570 mm
- Surface: Smooth
- Particle retention in liquid: 20 µm (98 %)
- Filtration speed: 54 s
- Thickness: 0,215 mm
- Basis weight: 85 g/m2
- Ash content: 0,007 %