Quantitative and qualitative analytics papers. Quantitative papers are suitable for quantitative analyses, Buechner funnels and for pressure or vacuum filtration. Qualitative papers are used for analytical and technical purposes and are available in many different versions.
The grade Q3400 is made of 100 % high-purity quartz microfibers only and pre-heated to guarantee excellent weight and dimensional stability. The filters are especially suitable for emissions monitoring at temperatures of up to 900°C and wherever filters of the highest purity are needed. A trace element analysis is performed for each single lot and its certificate of analysis is available on demand.
This paper grade is generally used for analytical and technical purposes. It has a fast flow rate due to its structure.
These qualitative filter papers are essentially used for analytical purposes and routine analyses, whenever no gravimetric analyses are required. They are wet-strengthened and can be used for pressure and vacuum filtration. They are made of refined pulp and linters with an > 95% α-cellulose content, are very pure with an ash content < 0.1%.