Cytiva's Whatman brand Grade GF/B is a thick filter with fine particle filter and good loading capacity. GF/B filters are particularly useful for liquid clarification and liquid scintillation counting. Nominal particle retention of 1.0 µm Appropriate for liquid clarification and/or liquid scintillation Cytiva offers a wide range of glass microfiber filters to support your analyses. See the Whatman range of glass, binder-free filters to find the thickness and particle retention for your application. GF/B fine particle filter benefits Liquid scintillation counting requires a fine particle filter, preferably with a high loading capacity. Grade GF/B filters from Cytiva's business are ideal for this and similar applications such as waste characterization and liquid clarification for suspended solids analysis.