Grade 402 and 302: General grade for qualitative tasks. Suitable for most sulphides. Determination of total fat content in dairy products.
Grade 403 and 313: Drugs, pharmaceuticals, liquors, tinctures, chromatography and protein-free filtrations in the clinical laboratory.

Grade 410 and 305: Filtration of copper(I) oxide, lead sulphate, barium sulphate, manganese carbonate and more for analytical work. Suitable for extremely difficult filtration and for clarification of wine.
Grade 413 and 303: For routine laboratory work, suitable for student requirements in general chemistry