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Whatman 无黏合剂玻璃纤维滤纸 Grade GF/D
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品牌 : Whatman
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产品分类：滤纸
GE’s Whatman Grade GF/D fine membrane filters are thick and offer good loading capacity. GF/D can also function as a prefilter when used with GF/B, and it comes in many sizes to fit most filter holders.
Thick filter media for increased loading capacity
Nominal particle retention of 2.7 µm
Can be used as a fine membrane prefilter
GE offers glass microfiber filters with a range of pore sizes and thicknesses. Browse other binder-free Whatman glass filters to find the right filters for your needs.
Fine membrane prefilter benefits
Whatman Grade GF/D from GE Healthcare’s Life Sciences business is a membrane prefilter that provides protection for membranes with fine retention. The filter can be used with Whatman Grade GF/B filters to provide efficient membrane protection, especially during liquid scintillation counting.
Looking for a filter paper, membrane filter, or syringe filter? Let GE help you find the optimal filter for your needs to ensure reliable analysis.
PRODUCT SPECIFICATIONS
| Parameter | Grade GF/D Glass Microfiber Prefilter, 42.5 mm circle (100 pcs) |
|---|---|
| Application | Highly suitable for use in applications involving air filtration and for gravimetric analysis of volatile materials where ignition is involved. Because of the low resistance it is recommended for fluid flow and high particle loading capacity. |
| Grade | Grade GF/D |
| Diameter | 7 / 10 / 21 / 24 / 25 / 35 / 42.5 / 47 / 55 / 70 / 90 / 110 / 125 / 142 / 150 / 257 / 460*570 |
| Nominal air flow rate | 2.6 s/100 ml/in² |
| Nominal thickness | 675 |
| Nominal basis weight | 121 g/m² |
| Max recommended temperature | 550 °C |
| Material | Borosilicate glass |
| Binder type | Binder Free |
| Typical Particle Retention in Liquid 1 | 2.7 µm |
| Typical water flow rate 2 | 681 ml/min |
| Format | Circles |
| Dimensions ( mm ) | Ø 7 / 10 / 21 / 24 / 25 / 35 / 42.5 / 47 / 55 / 70 / 90 / 110 / 125 / 142 / 150 / 257 / 460*570 |
1：article retention rating at 98% efficiency.
2：Normalised for 9 cm diameter. Measured under gravity for comparative purposes搜索质检报告(COA)
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