Lab Products


High Purity Qualitative Filter Papers


Ultramicro balances Cubis®
 


These filter papers are especially suitable for qualitative analyses that require a low ash content. The grades 292 and 292a have furthermore a low nitrogene and nitrate content and the grades 131 and 132 a low sodium and phosphate content. They are available in different formats as in rolls, sheets, discs and folded filters.

Specifications of the different paper grades
 
Grade Weight
(g/m²)		 Thickness
(mm)		 Particle-
Retention (µm)		 Filtration
(s)
292 87 0,18 5-8 60
292 a 97 0,19 4-7 97
131 80 0,16 3-5 100
132 80 0,17 5-7 55