Circles, quantitativ, wet strengthened, grade 1125
The wet-strengthened filter papers exhibit a very high degree of mechanical stability. They are resistant against acidic and alkaline solutions and are suitable for pressure and vacuum filtration. They are made of 100 % cotton linters. For maximum purity the papers are acid-washed and cleaned with demineralized water. Ash content is 0.007 %.
Grade 1125, very slow filtering, particle retention 2.5 µm, filtration speed 180 s according to DIN 53137, basis weight 84 g/m², thickness 0.15 mm, wet strengthened
For difficult filtration requirements or very fine precipitates (e.g. barium sulphate, copper oxide, tin oxide) Especially high mechanical strength and resistance to acids and alkalis.