Whatman Grade GF/B Glass Microfiber Prefilters, 2.25 x 12.25 in Sheets, 100 pack, 1821-271
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GF/B grade glass microfiber filter papers are significantly thicker than grade GF/A filters. They also boast a much higher wet strength and load capacity. Liquid clarification and scintillation techniques requiring high load capacity demands these filter papers – three times thicker than GF/A grade – that can stand up to heavily loaded fine particulate suspensions while maintaining fine particulate retention needed for proper filtration.
GF/B grade filter papers can also be used as a finely retentive membrane filter, if needed. This product is unique in that it is the only GF/B filter paper offered in United States customary measurements. They are 2.25 x 12.25 in.
Whatman product code | 1821-271 |
Filter Media | binder free glass microfiber |
Material | Borosilicate glass |
Particle Retention Rate | 1.0 µm |
Size | 2.25 x 12.25 in |
Thickness | 675 µm |
Maximum Temperature | 550°C |
Air Flow Rate | 12 s/100 ml/in^2 |
Water Flow Rate | 81 (ml/min)^2 |
Pack Size | 100 |
Application | High load capacity liquid scintillation |
Grade | GF/B |
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Format | Sheet |
Manufacturer | Whatman |