Glass fibre filters allow a fast filtration and simultaneously a very high particle retention. They are manufactured from borosilicate glass fibres and are chemically resistant towards most organic and inorganic solvents (except HF). Glass fibre filters without binders, especially suitable for determinations with defferential weighing. For quantitative analyses. Glass fibre filters allow a fast filtration and simultaneously a very high particle retention. They are manufactured from borosilicate glass fibres and are chemically resistant towards most organic and inorganic solvents (except HF). Glass fibre filters without binders, especially suitable for determinations with defferential weighing. For quantitative analyses.