Cytiva's Whatman filter paper Grade GF/C glass filters offer a good flow rate and loading capacity that support total suspended solids analysis. Filter Paper for Total Suspended Solids: Whatman binder free glass microfiber filter grade GF/C from Cytiva is widely used as a total suspended solids filter for applications testing both potable water and waste water. Browse below to find your binder-free Whatman glass filters and the right filter paper to match your laboratory and filtration research needs, or learn more about our ready-to-use GF/C RTU that is pre-washed and dried but not weighed. The GF/C RTU line pre-treats our traditional GF/C filter with washing, drying, cooling (in a desiccator), and weighing steps aligned to the requirements of EN 872 – the European norm for suspended solids in water testing.