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Whatman Grade GF/B Glass Microfiber Filters, Binder Free, GE Healthcare


1821-914 1821-915 1821-090 1821-070 1821-150 1821-271 1821-185 1821-042 1821-021 1821-055 1821-110 1821-024 1821-025 1821-047 1821-125 1821-037
GE’s Whatman brand Grade GF/B is a fine particle filter with high wet-strength and high loading capacity. GF/B filters are particularly useful for liquid clarification and liquid scintillation counting.

  • High wet-strength and loading capacity
  • Nominal particle retention of 1.0 µm
  • Medium to fast filtration speed
  • Appropriate for liquid clarification and/or liquid scintillation

GE 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. Liquid scintillation counting requires a fine particle filter, preferably with a high loading capacity. Grade GF/B filters from GE Healthcare’s Life Sciences business are ideal for this and similar applications such as waste characterization and liquid clarification for suspended solids analysis.



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Description Size Material Diameter Binder Type Supplier No. Catalog Number Unit List Price Quantity
Grade GF/B Filter for Liquid Scintillation, 25 mm circle 100 Pieces Borosilicate glass 25 mm Binder-Free Circles 1821-025 1821-025 Pack of 100 Retrieving
Grade GF/B Filter for Liquid Scintillation, 47 mm circle 100 Pieces Borosilicate glass 47 mm Binder-Free Circles 1821-047 F-5400-1 Pack of 100 Retrieving


Filtration Speed Medium to fast; 195 s (Herzberg)
Airflow Rate 12 s/100 ml/in²
Basis Weight 143 g/m²
Max. Operating Temperature 500° C
Typical Thickness 675 µm
Particle Retention in Liquid 1.0 µm
Flow Rate
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